Yoshi the HDJ81

kenavt

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Hey if you need a place to crash I’m only a few miles off 90 in MN.

Thanks, I appreciate that! Would be fun to see your truck. Not sure what my plans will be yet but I'll keep that in mind

I don't know how I missed that you're local to me.

Enjoy the drive

Welcome from another Washington hdj81
I don't think you did! 😉 Do you go to the monthly Seattle Cruiserhead meetups?
 
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Thanks, I appreciate that! Would be fun to see your truck. Not sure what my plans will be yet but I'll keep that in mind




I don't think you did! 😉 Do you go to the monthly Seattle Cruiserhead meetups?

Not usually. They're at 6. And usually an hour or two from my house. I work nights and am not up early enough to make it. Plus the thought of fighting Seattle traffic is unappealing.

I attend most of the north sound cruiser meets
 

kenavt

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So I got four of the six items done on my list before I leave tomorrow morning! Enough to do the trip, then I'll have more to do when I get back.

I "jailbroke" my JDM cruise control ECU (lifting the 112 km/h limiter) by soldering in a resistor into the right place. More details: HDJ81 Cruise control top speed - https://forum.ih8mud.com/threads/hdj81-cruise-control-top-speed.104835/page-2#post-14549063

I fixed the AC by replacing the compressor, dryer, and expansion valve. Expansion valve - just ordered Denso 4752005 from Rockauto. Dryer I ordered from Toyota, PN 88471-50020. The compressor was trickier, I talked about it in this post, had to order some things and it wasn't cheap 1HD-FT A/C Compressor needed - https://forum.ih8mud.com/threads/1hd-ft-a-c-compressor-needed.733952/#post-14552313. I also replaced all of the O-rings that I had touched with a USDM kit from O'Reilly's, and sealed with Nylog Blue. Just had it recharged yesterday and I now have cold AC. 😁

I bolted in the USDM trans cooler and ran new trans fluid lines from the hardlines that exit below the crankshaft. Got most of the old fluid out. Seems to be working great, without gauges it's impossible to do a before/after though.

Coolant hoses deserve another post. I'm pretty skeptical of those Chinese silicone hose kits, at least on 1HD-FTs, but I'm going to try them for this roadtrip if only because I'm out of time. I'm most worried about these in my roadtrip - that a clamp gets loose or that a hose gets cut somehow. Might try replacing some of them after the first half of my roadtrip is done.

I ran out of time to install the Auber gauges or build the sleeping platform. I might build the sleeping platform in time for my trip back. Hopefully I won't need the Auber gauges - I'm completely stock turbo/intercooler/airbox wise, and now I have the USDM trans cooler, and I have no plans to challenge the truck on this trip.

I also replaced my main drive belts and AC belt. Following up on the below from the last thread...

90916-02452
99332-61275
I don't know how I found these since this was last week and I didn't take notes, but... I picked up 99332-11260 (-78) for my AC belt, and Conti 17395 for my main drive belt (at a very cheap price). So maybe I'll be ordering new belts again. I see the 99332-11260 appears to be for '90-94 HDJ81s.
-11260 won't work on the -FT.

Conti 17395 didn't work, it was too wide of a belt. I suspect Gates 7395 may work in a pinch since it has roughly the right length and width, and I laid eyes on one, but haven't tried it.

I canceled my order for 99332-11260 and didn't even try it; ended up ordering 99332-61275 as @OGBeno said, as well as 90916-02452. The latter comes as a kit of 2 belts, you don't need to order quantity 2. They went on great.
 
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kenavt

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Road trip update... trip is going well. I've clocked 4000 miles since I left between the main drive to Ontario, detours along the way, and then lots of errands and small trips throughout the last month. Yoshi hasn't missed a beat.

I'm falling in love with this truck - how comfortable it is, the character of the diesel, the fuel efficiency. The differences between the 80 series and 60 series platforms for long term comfort are night and day... I now find it hard to believe I was going to do this trip in my FJ60 😂

Did a Costco 15W-40 oil and OEM oil filter change in my parents' driveway this afternoon, and tomorrow morning I'm back on my way to Seattle! Goal is to high-tail it and get there in five days, with stops by Lake Superior in the Upper Peninsula, Minnesota, and North Dakota.

Some phone pictures from the last month in South Dakota:

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Into the Chicago Loop:

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And backwoods Ontario with the most rustic fuel pump I've ever used:

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IMG_3931.jpeg
 

kenavt

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And now I'm back in Seattle! Ended up doing the drive as a sprint back from Michigan in four days, passing through the Upper Peninsula and camping in Copper Harbor along the way. The truck had no drama and no fuss*. In total I racked up over 6500 miles and averaged 21 mpg, stock on my 33s. Eat your heart out, gassers 😉


* with one small exception... on I-90 going through either Homestake Pass at 6000ft or Bozeman Pass at 5000 ft and 90+ F outside... the truck felt like it was a bit down on power. Instead of holding 75mph up the grade, it was more like 65mph. I would think with turbo engines that's not that surprising; the high altitude and temp means feeding air into the engine is more difficult. Something I'm sure an intercooler would sort out nicely.

Enjoy some more photos from the return trip! Next up is some routine maintenance... then on to more local PNW adventures and potentially some upgrades 😁

IMG_4224.jpeg
IMG_4261.jpeg
IMG_4206 2.jpeg
IMG_4208 2.jpeg
 
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Joined
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And now I'm back in Seattle! Ended up doing the drive as a sprint back from Michigan in four days, passing through the Upper Peninsula and camping in Copper Harbor along the way. The truck had no drama and no fuss*. In total I racked up over 6500 miles and averaged 21 mpg, stock on my 33s. Eat your heart out, gassers 😉


* with one small exception... on I-90 going through either Homestake Pass at 6000ft or Bozeman Pass at 5000 ft and 90+ F outside... the truck felt like it was a bit down on power. Instead of holding 75mph up the grade, it was more like 65mph. I would think with turbo engines that's not that surprising; the high altitude and temp means feeding air into the engine is more difficult. Something I'm sure an intercooler would sort out nicely.

Enjoy some more photos from the return trip! Next up is some routine maintenance... then on to more local PNW adventures and potentially some upgrades 😁

View attachment 3106863 View attachment 3106866 View attachment 3106864 View attachment 3106862


The air density was the cause more than the heat. There's really nothing you can do about it.
 

kenavt

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The air density was the cause more than the heat. There's really nothing you can do about it.
So then an intercooler would not help that much, would it? Since it’s more for heat exchanging then for condensing air? (although I’m sure taking some heat out helps a bit).
That, and making sure it's clean! Take advantage of the OEM washable filter and shake it out in some river water!
Ooh yes I will do this! I’m curious to see how dirty it is after racking up 7k miles on it.
 
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So then an intercooler would not help that much, would it? Since it’s more for heat exchanging then for condensing air? (although I’m sure taking some heat out helps a bit).

Ooh yes I will do this! I’m curious to see how dirty it is after racking up 7k miles on it.


An intercooler on a diesel really keeps egt's down and allows you to push harder. There's a benefit. But at elevation the only thing you can do is make more power.
 

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