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Build Thread - 1990 Acty Attack

Discussion in 'Honda Acty' started by unevolved, Jan 28, 2024.

  1. unevolved

    unevolved New Member

    I've always been a fan of a proper build thread- mainly from a historical perspective, it's always fun to look back over the progress of a long-term build, and I think it's great to get the input of a community (like this one) to share knowledge. So, here's the story of our 1990 Acty Attack.

    On June 1st of last year, I reached out to Stacked Exports over in Japan to figure out how the import process could work. A buddy of mine had used them in the past for importing Skylines and such, and they laid out the process for me:
    1. We find a vehicle we like for sale on the Japanese market, using sites like auctions.yahoo.co.jp, goo-net-exchange.com, etc. with as much or little assistance from Stacked as we want.
    2. Once we find a vehicle we want, they arrange shipment (if necessary) to their facility in Osaka.
    3. If we're all in agreement that it's a good vehicle once they have a chance to inspect it, they get it on a boat headed to the US.
    I spent about a month researching all the different types of kei trucks out there, and gravitated towards a Honda Acty or Subaru Sambar. The rear or mid-rear engine locations seemed to make them a little better handling for street driving, which is what we planned to use it for, and the 4x100 bolt pattern made finding new wheels easier. Pure vanity on my part, but it is what it is. On June 26th, I found this little guy for sale on goo-net-exchange.com for 340,000 JPY:

    1700318879_0901340a30221012w01301_mmthumb.jpg

    Stacked looked it over, got some more pictures from the seller, and we decided to go for it. On July 3rd, money changed hands, and Stacked bought the truck on our behalf. They arranged shipment from the small dealer in Miyagi to Osaka, and it got to their facility July 25th. They looked it over, drove it around, and sent us over 120 pictures inside and out:

    1700319095_img_8389_mmthumb.JPG

    Only one problem- the wheels were gone! Somewhere in the process, the 12" aluminum wheels shown in the listing had been replaced with steelies. Stacked reached out to the dealer for us to figure out what happened. Turns out there was a miscommunication, and Stacked apologized profusely. Apparently the aluminum wheels had been a buy-up option that didn't get passed along, so the dealer put steelies on it for the agreed price. Stacked offered us two options- they could find us some similar value wheels at their expense, or they'd be happy to facilitate purchase of some new wheels for the truck.

    Wheel shopping in Japan with no shipping or custom costs? Don't mind if I do!

    Didn't take long to find these white Rays TE-37s on auctions.yahoo.co.jp for around $600:

    1700319285_s-l1600_mmthumb.jpg

    Amusingly, I found the same set (serial number matched) for sale on eBay in the US market for $2000 or so, including shipping from Japan. So it'd practially be LOSING money to not buy these, right? Stacked was happy to purchase them for us, and bought and mounted some new Yokohama all-seasons. All in, it cost us about $1400 for some legit Rays with new tires. Not upset about that.

    By July 27th, the truck was in queue for shipping from the Port of Kobe. At this point, we're about $3500 into the truck itself (including Stacked's fees) and the shipping via Ro-Ro cost $1500. It didn't leave until Sept 26th, but that sort of delay is just part of the process right now, it sounds like. While the boat was en route, Stacked sent me the original export certificate via DHL, and I reached out to TurboISF to help with the paperwork process. I didn't want to pay someone to handle the whole import process, but I'd heard some horror stories about the total-DIY type messing up some of the Customs paperwork and getting stuck in bureaucratic hell. So, $300 later, I had all the paperwork squared away for Customs, EPA, and NHTSA. The import tariff was $644 (thanks, Mercedes, for the Chicken Tax).

    It arrived in the port on Nov. 6th. There was an additional $200 port usage fee. I borrowed a buddy's trailer and drove down last Sunday night and crashed in a hotel. I paid $112 for a TWIC esc0rt since I don't have a TWIC or CAC (federal ID that gets you into secure Homelad Security ports), followed her into the port, waited in line with a bunch of truck drivers, and the nice lady behind the desk said "okay, you're all set, it's somewhere in that parking lot over there." Thankfully, the baby towing mirrors and white bumper made it easy to pick out of the sea of kei trucks.

    1700319728_2023-11-13-090247_mmthumb.jpg

    It's here! 5 months after finding it for sale online in Japan, I finally see it in person. Everything is as expected, except for one problem- the battery is stone-cold dead. The root cause is a problem for another day, but I need to figure out how to get this thing out of here. I brought a bunch of tools and whatnot, including a little lithium jump box for this exact scenario. Turns out those little lithium jump boxes don't work on batteries with 0.00V, because it was fucking useles. Thankfully, the truck only weighs about 3 lbs, so I pushed it through the sea of vehicles to the 4Runner. I hooked up jumper cables, and it fired up on the first hit! From there, loading was pretty straightforward.

    1700319878_2023-11-13-095431_mmthumb.jpg

    The TWIC escort was fairly useless for anything other than the literal "follow me" and "go over there" directions, so I had to load it myself. Thankfully we'd measured before we left, because the track width is only about 4" wider than the open deck of the trailer:

    1700319985_2023-11-13-101604_mmthumb.jpg

    Once I got it loaded up, the esc0rt said "alright, follow me to the gates, then you're all set and you can head out." Okay, cool, but what about customs stamps? I read online some DMVs require your CBP paperwork to be stamped, and if you don't get it when you pick it up, it's a huge hassle to get it stamped retroactively. So, she took me to the local CBP office where a very nice officer reviewed and stamped my 7501 and 3461 forms. Glad I asked.

    The drive back to NC was fairly uneventful. The 4Runner got about 12mpg towing this parachute-shaped truck, so I stopped for gas 3 times. As an aside, that's really my only complaint about the V8 4Runners, the tank is too small for reasonable cross-country legs.

    I had this dopey grin staring at me the whole way home:

    1700320178_2023-11-13-100232_mmthumb.jpg

    For a few weeks, it was on house arrest, limited to tooling around the neighborhood until I got it registered. Insurance through Hagerty was very simple and straightforward. I needed to get a "VIN Verification Inspection" done at the License & Theft Bureau since it's never had a US title, to verify I'm bringing in what I say I'm bringing in. Not sure why the state can't trust the stack of federal paperwork I have confirming that, but I guess that's just how America works.

    Jake
     
  2. unevolved

    unevolved New Member

    Oh, I figured out what killed the battery. The brake light switch meets up with a little plastic bumper on the brake pedal, which opens the NC switch when the pedal is moved. At some point during shipping, the plastic button failed and fell off, leaving the pedal switch poking through an open hole and thinking the brake lights needed to be on.

    I didn't take a before picture, but it was a simple fix with a 3D printer:

    1700320727_2023-11-15-203550_mmthumb.jpg
     
  3. unevolved

    unevolved New Member

    1700948413_2023-11-23-114132_mmthumb.jpg

    There's so much room for activities! (Actyvities?)

    First "mod" complete. The Facebook group "Honda Acty Enthusiasts" keeps a nice record of part number interchanges that are easier to get in the US. The radius arms in the front are a pretty easy way to improve the steering feel, and Moog K9733 can be bought on Amazon for $25. Hard to beat that.

    Before:

    1700948625_2023-11-25-151316_mmthumb.jpg

    Here's the old ones:

    1700948667_2023-11-25-151929_mmthumb.jpg

    I cleaned up the rust with a steel brush, then reassembled with a liberal amount of Red #2 grease:

    1700948707_2023-11-25-153033_mmthumb.jpg

    The right side went together pretty easily, but the left side took a hit at some point in the past. Looks like a curb strike, or something along those lines? Easily straightened out with some channel locks.

    1700948776_2023-11-25-153647_mmthumb.jpg

    Overall, a very simple job. 30 minutes, maybe? 14mm ratchet, 14mm wrench, and 17mm gear wrench was all it took.

    On a less positive note, I found some structural rust that made it through the inspection. Hidden under some underbody coating and aluminum tape was this crunchy hole:

    1700949262_2023-11-25-154819_mmthumb.jpg

    Definitely going to need to be addressed at some point, but doesn't appear to be structurally concerning. It's not through to the cabin floor above, just this little frame doubler. I stuck my little USB borescope in there, and it appears to be isolated to this area. Here's the inside, looking forward:

    1700949411_img_0136_mmthumb.JPG

    And backwards:

    1700949432_img_0137_mmthumb.JPG

    I've looked over the rest of the truck and haven't seen anything else, so I guess for buying a vehicle sight-unseen from the other side of the world, that's not too bad. I'll keep an eye out on FB marketplace and CL for some "parts trucks" that might be able to donate some healthy sheet metal from this corner of the cab, but if I have to freehand something, it shouldn't be too terrible either.

    Jake
     
  4. unevolved

    unevolved New Member

    In early December, I took the morning off and drove it up to the county License & Theft Bureau. This was the first trip out in the wild, and it did pretty good! It was pretty cold for NC, maybe 28°F or so, when we left the house, and after about 5 minutes it was heating up the cab so well I had to turn it down- not entirely unconvinced it's not a small chunk of plutonium somewhere under the dash.

    I was a little curious to see how it would handle at speed (kei truck speeds, mind you) and it was totally fine. I don't have a tach, so I don't know how high I was actually revving, but it was able to hit about 60 mph on some back roads and never felt skittish. I'd heard some horror stories of guys with clapped-out, higher mileage trucks getting a "death wobble" like a Wrangler, but it felt fine. I made it to the next town up the road in about 45 minutes staying off the freeways, which usually takes about 30-35 minutes. Oh well. Kei truck problems.

    1701918989_2023-11-28-082723_mmthumb.jpg

    Look how adorable with those little baby Rays. How can you take this truck seriously? It's so ridiculous, I love it.

    After waiting about an hour and a half, a nice highway patrol officer looked the truck over, verified the VIN matched all the paperwork, and gave me a piece of paper to take to the license plate office. First time getting gas on US soil:

    1701919110_2023-11-28-104049_mmthumb.jpg

    I also learned this trip how predatory gas station phone chargers are priced. My phone almost died, because I'm a dumbass and browsed the interwebs the whole time I was waiting after using it for navigating. After seeing the $35 they wanted for a charger AND cord and a couple gas stations, I decided I'd rather just let my phone die. This was fun, though- the odd little cupholder on the dash is the perfect size for a can of Red Bull.

    1701919241_2023-11-28-104114_mmthumb.jpg

    Another 45 minute drive at 6000 RPM back home, and it was time to get a license plate. The final boss.

    Somewhat surprisingly, it wasn't too challenging. I gave the nice, but confused, lady behind the counter the sales invoice, the export certificate (original and certified translation) and the inspection paperwork from earlier in the morning, and she looked everything over. There was a little bit of confusion over the invoice having the vehicle price in yen- bless her heart, the lady didn't quite understand the concept of paying for something in a currency other than US dollars, and didn't understand why I couldn't just "get them to get me an invoice in dollars." Thankfully, the customs form 7501 had the taxable value in USD, which after consulting with her supervisor was sufficient to register it and pay sales tax.

    I was a little surprised they just gave me a plate without a standard safety inspection, but I wasn't going to complain. Officially a US citizen!

    1701919596_2023-11-28-120039_mmthumb.jpg

    Jake
     
  5. unevolved

    unevolved New Member

    I realized at this point, we've driven the truck more than it's probably driven in the last year. I think the mileage really is 20,700 km rather than 120,700 (5 digit odometer). It started running pretty rough after my wife drove it around, so I put a can of Seafoam in the gas tank, which helped quite a bit. It's developed a hot-idle problem, which appears to be a failed "fuel cut solenoid" which isn't uncommon.

    I took an oil sample and sent it off to Blackstone, and I'm sure that's gonna be comical. Ever seen a magnetic oil filter?

    1701920076_2023-11-29-185307_mmthumb.jpg

    Oh wait, not like that.

    Given the strong smell of gasoline in the oil and the metal in the oil filter media, I'm gonna assume this motor's kinda tired. I'd debated freshening it up with a timing belt and water pump job, but I'm leaning towards getting a second motor to go through completely.

    I snagged this HH3 (Acty Van) cluster off eBay to wire up- it'll bolt in, but it'll take a little bit of finessing some wire to get it to function. I think it'll be worth the effort to have an OEM tach.

    1701920350_2023-12-04-174047_mmthumb.jpg
     
  6. unevolved

    unevolved New Member

    My little Panavise phone mount couldn't quite seem to suction to the windshield on a cold morning, so I got an idea. The Actys had little clocks in the dash that was a buy-up option mine wasn't equipped with. I drew up this mount the locks into the dash, and printing it out of Tough PLA:

    1701992446_2023-12-07-183954_mmthumb.jpg

    It's got some locking tabs on the back with captive nylocks so they rotate into position before tightening down:

    1701992487_2023-12-07-183741_mmthumb.jpg

    Excuse the crappy surface finish- my home printer is somewhat of a science project, and I need to replace the belts badly. It'll probably get some paint to match the dash a bit better, but it'll work just fine!

    1701992555_2023-12-05-212410_mmthumb.jpg
     
  7. unevolved

    unevolved New Member

    Back in December, I found a spare motor on facebook!

    1702140624_2023-12-08-153814_mmthumb.jpg

    Someone in the "NC KEI CLUB" facebook group posted they were thinking about getting rid of this. It was overheating in their 95 Acty, so the imported a fresh(er) motor and swapped it for this one. $300 and a hour-and-a-half drive, and it's mine. It'll turn over, and it doesn't have a hole in the block, so it's perfect. Been looking for a rebuildable core since we bought this truck, and they don't come up often.

    Was having some issues with it idling like shit after warming up, which is the classic sign of failed solenoids. Ordered some from Amayama, which cost way less than buying from eBay, just took a couple weeks to get here.

    1705284488_2024-01-06-191707_mmthumb.jpg

    Put those on, adjusted the idle stop, and it's idling much better now. Still isn't making much power, even for an Acty, so I think this engine is just tired. I probably SHOULD do a compression test, just to know, but I suspect it's pretty meager. Check out what Blackstone Labs had to say about the oil, though:

    I don't know that I've ever seen an oil analysis recommend listening for rod knock. I guess I'm proud of this little engine for continuing to run so well, even if it's not very strong. Clearly has the odds stacked against it at this point.
     
  8. unevolved

    unevolved New Member

    Our truck came with the old Clarion radio, and it was pretty much useless. So, as part of my goal to make this a daily-able truck, it's gonna get some very mild audio improvements. First up- speakers.

    I had these 3.5" speakers laying around from another project; turns out they might work pretty well here. Drew up a simple mount in Solidworks:

    1705866670_2024-01-21-14_49_15-solidworks-connected-maker-speaker-adaptersldasm_mmthumb.jpg

    ...then printed them out on my little home printer out of Matterhackers Tough PLA. I made some little "anchors" to hopefully prevent any permanent sheet metal modifications. If these don't work, I'll add some rivnuts, but seems like we're in business:

    1705866776_2024-01-21-140055_mmthumb.jpg

    I kind of eyeballed the radial positioning between the door, but it came out okay. Window still moves up and down without interference.

    1705866903_2024-01-21-140206_mmthumb.jpg

    (Please ignore the awful surface finish, I pulled it off the raft before it cooled all the way.) I think it might be pushing against the inside of the door card, but I'm not sure that's worth redoing it at this point. Good enough!

    1705867004_2024-01-21-140341_mmthumb.jpg
     
  9. unevolved

    unevolved New Member

    This weekend, I had some time to finally address the engine mounts. Spoiler alert- worth every penny, and not really that hard to replace.

    First up, some period-correct wrenching tunes:

    2024-01-27 11.19.31.jpg

    My Harbor Freight engine support bar got used for the first time in about a decade, it'll probably be another ten years before I use it again. Still handy to have around, though!

    2024-01-27 11.39.50.jpg

    I'd read the right side mount was the hardest to do, so I attacked that one first. I can see why people would be frustrated if you tried to replace it without removing the bracket to the transmission, but taking everything off made it pretty straightforward.

    2024-01-27 11.47.00.jpg

    The rear mount was torn all the way through, definitely time to go:

    2024-01-27 12.48.51.jpg

    Overall a pretty straightforward job. All three were in dire need of replacement, and the truck is noticeably smoother now. 10/10 for cost-effectiveness.

    2024-01-27 13.30.31.jpg

    Later in the day, I did a trans fluid change in my wife's 2011 Civic Si, and it was honestly harder to work on than this Acty. I've been enjoying wrenching on this thing, it reminds me of the Civics of the same vintage I used to work on in college.
     
  10. AttackCRX

    AttackCRX Member

    Love the build-thread, I was always too lazy to create my own. I have a '92 Acty Attack and have loved every minute of it. My truck when I bought it 3 years ago (40K miles) had a worn center link https://rightdriveparts.com/honda-acty-center-link-ha3-ha4-hh3-hh4/. I haven't replaced it yet, because it's stupid expensive and only wobbles at 49-50mph.

    Good luck with the truck and keep those pics rolling in!
     
  11. highrelevance

    highrelevance New Member

    great thread! did your HH3 Cluster come with pigtails? I made the mistake of getting one without and I'm having a hell of a time sourcing ones that will work
     
  12. unevolved

    unevolved New Member

    Mine did not. My current plan is to replace the connector on the truck side with a couple DTM connectors, and wire up some leads to the back of the connector.

    Last week, I heard a noise coming from the front drivetrain I couldn't quite place. Didn't sound like a wheel bearing, or a CV joint, or any of the usual offenders, but it was definitely there. I (foolishly) posted on a FB group and didn't really get any meaningful advice. So Sunday, I decided to dive in, hoping it was a stuck caliper making a weird dragging sound, or a bearing noise I hadn't heard before, etc:

    2024-02-04 11.31.38.jpg

    Got the axle out of the hub, and the wheel bearing felt fine. But turning the axle, I felt a clicking noise that I thought would explain what I was hearing. One thing led to another, and I had the front diff blown apart on the workbench:

    2024-02-04 13.39.59.jpg
    At this point, I realized I was a dumbass and the noise I was hearing when it was on stands in the garage was just the backlash in the spider gears, which every differential has. Nothing was amiss in the differential. So, back together it went.

    2024-02-04 17.14.25.jpg
    Made me smile when I was putting it back together and noticed I wasn't the first person to reuse this axle nut, even though I was the first person to work on it in the US. Shitty mechanics around the world unite! Damn right I reused it for a third time.
    2024-02-04 20.23.04.jpg
    I snapped a picture of the brakes in there in case it helps anyone else find some good pads. A quick Google search didn't bring anything up, but maybe some exporter could get a batch of these.

    Oh, I also found another rust hole in the same crossmember under the left side of the cab:

    2024-02-04 20.34.47.jpg

    Another thing to patch. Annoyingly, this one's going to require dropping those fluid lines to get access. Honestly, I need to just find a donor vehicle and cut that lower reinforcement piece off and weld it onto mine:

    2024-02-08 21_14_27-B-49-21 main frame for Honda Acty.jpg

    If anyone's cutting up a truck in or near North Carolina, let me know, I guess.
     
    GeoJoe likes this.
  13. unevolved

    unevolved New Member

    About a month ago, we ran over something small in the road. Didn't think anything of it, until the next morning when the left rear was completely flat. Didn't take long to find this hole in the sidewall:
    2024-02-10 10.26.03.jpg

    Well, damn. That'll do it. So, fun fact, I bought 13" wheels before I shipped the truck over here, specifically so it'd be easier to find tires in the US. I didn't think to check tires- the 165/60R13s it had were unobtanium. So, even though they had under 500 km on them, I had to replace the entire set. I went with some 175/70R13 Kumho Solus's through Discount.

    2024-02-13 17.41.51.jpg

    No fitment issues, and about an extra half inch of rolling radius. I never checked the speedometer against a GPS with the older tires, but with the new ones it's about dead-on. I kinda thought it was indicating fast. This VERY flat tire issue highlighted how important it is to have a functional spare, so I bought a new spare tire from Discount as well, for $140 installed:

    2024-02-22 18.21.26.jpg
     
  14. unevolved

    unevolved New Member

    One little side project I've been working on is stuffing a bluetooth receiver and amplifier in the non-functional factory AM radio. I'm a sucker for OEM-looking upgrades, and a while back I retrofitted a 50's wooden case GE radio with all new guts for a family member, using one of these modules:

    https://www.amazon.com/gp/product/B07XG33WPN/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

    I have limited experience with DAC chips, but I read on some audiophile forums the TPA3116D2 chip is pretty good. This module is one of the cheaper ones in the output range I'm looking for, so I feel like it's worth a try for this project as well. I hollowed out the factory radio, including shaving down the extrusions on the left inner side of the case:

    2024-02-24 15.38.16.jpg

    I printed this mount for the amp:
    2024-02-24 15.44.55.jpg

    It fits up snug against the side of the case. Excuse the overly-long screws, since they're hidden I didn't bother to buy shorter ones and just used some 6-32s I had on hand:

    2024-02-24 18.56.34.jpg

    It's really just dumb luck the rotary pot of the module lines up so well with the tuning knob on the radio:

    2024-02-24 18.56.45.jpg

    I cheated and used a little glue to hold the faceplate on. With only the locking collar on the right side, it was a little wobbly. Looks okay though:

    2024-02-25 20.25.30.jpg

    Simple adapter for the knob, and it slides right on:

    2024-02-26 19.15.52.jpg
    2024-02-26 19.16.00.jpg

    One of these days when I stop finding mechanical issues, I'll get it reinstalled and have audio in there again.
     
  15. unevolved

    unevolved New Member

    Speaking of mechanical issues, it took me two weeks to do the front wheel bearings on this thing. I read on the "Acty Bible" (https://robrobinette.com/Honda_ACTY.htm) that the front wheel bearings are the same as the rear (Timken 6206-2RS) so I ordered enough to do all 4 corners, or so I thought. Started on the front right corner:

    2024-03-03 13.08.13.jpg

    Pressed the bearing out of the hub, saw the radius on the inner diameter, and quietly said "aw shit." Not only is it a single double-row bearing instead of the pair of single-row bearings like the rear, the dimensions aren't the same.
    2024-03-03 14.46.42.jpg

    The front wheel bearing is 64mm OD and 37mm thick, while a stack of 6202s is 62mm OD, and 32mm thick. Dammit. Now I've got a truck blown apart in the garage without the parts to put it back together. A trip to Napa for a CRX front wheel bearing was fruitless, so I ordered a pair from Willpowered. A few days later when those showed up, the right front went back together without any issues, and I moved on to the left front. Hub came out with a slide hammer, but the snap ring was abso-fucking-lutely seized in there.

    2024-03-09 12.06.48.jpg

    Several days of heat, hammering, PB blaster, and bent snap ring pliers got me nowhere.

    2024-03-09 19.08.29.jpg
    After lighting the workbench on fire with a small grease fire, I decided it was time to sacrifice the snap ring and source a replacement. The Dremel went in, and the snap ring came out about 10 minutes later:

    2024-03-12 20.16.55.jpg

    I soaked the nose of the upright in Evaporust over night to clean up as much of the surface rust as I could, then pressed in the new bearing with a new snap ring. McMaster PN 98455A404 is a perfect fit, for $1.51 (before shipping).

    2024-03-14 17.13.06.jpg

    All back together and happy. That noise that was bothering me is gone, so it must have been the LF wheel bearing. This truck sat for several months in the sales lot in Japan, plus all the time in transit, and I guess that must have messed up the wheel bearing.
     
    Koitoi likes this.

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