Builds 1990 LJ78 in Montana

[pradoblivious]

Got the turbo pulled and sent to the rebuild shop this last Wednesday.

The shop said it was REALLY bad, pretty much all internal parts were replaced. ow my wallet.

It came out pretty easy.. only one side of the oil line had a gasket on it, and they were both slathered with that liquid seal stuff. The return line was just about clogged closed with it..

It came back on Fri looking like a brand new part, and they included gaskets.. my cup runneth over. This must be what it's like to own a car you can just buy parts for..

The injectors are still out, haven't heard back from those guys yet. While I had it all apart I figured I'd do some other stuff I've been putting off like replacing these plastic gauge lines with copper...

 

[pradoblivious]

dash side, it's all pretty much buttoned up now

This morning I went out to start putting the turbo back in and the damn thing was so clean and new it made the rest of everything look like complete crap.. So I took some sandpaper to the water return lines and the wastegate actuator

That made things a little better, but the heat-shielding still looked crappy, so I went out and got some engine enamel..

 

[AirheadNut]

Looking good! It's all those little "while you're in there" cleanup tasks that make the end result really satisfying and nice to look at. Great idea about replacing the boost line with copper, I should do that too. My little plastic boost line has cracked off three times now, I currently have the fitting in the intake pipe plugged.

 

[pradoblivious]

And installed.

 

[pradoblivious]

Looking good! It's all those little "while you're in there" cleanup tasks that make the end result really satisfying and nice to look at. Great idea about replacing the boost line with copper, I should do that too. My little plastic boost line has cracked off three times now, I currently have the fitting in the intake pipe plugged.

I did both the oil pressure and the boost line. The oil pressure one was the one I was having trouble with, but they've both been a little dicey since they come in over on the hot side

 

[pradoblivious]

injectors came back today, still nicely numbered and all clean looking.

They included new copper washers for the fuel return line which was nice, but they also have these two on the stems...

One copper and one rubber.. I asked the guy and he said the copper one was a compression washer. These did not come out when I pulled the injectors, does that mean they're still down there? Tips for getting them out? Coat-hanger?

Also when they were pulled, they were coated in a thick purple lube. I assume it was anti-sieze grease? Is there a generally considered "best" brand for that stuff?

 

[AirheadNut]

You still have the old crush washers down in the injector bores. If 13B-T washers are similar in size to 1HD-T washers then a long M8 bolt should just thread into the center hole. This is the best way I’ve found for removing stuck washers, they can be pretty rough to get out sometimes but if you can force a bolt to thread then you have something easy to reach and pull on.

 

[AirheadNut]

I found a photo illustrating removing the crush washers with a bolt, this is on my brother's 1HD-T:

Just make sure not to thread the bolt any further down than the bottom of the washer, it could damage the walls of the injector bore.

 

[pradoblivious]

I am all buttoned up. Thanks for the advice on getting the washers out. what would happen if I damaged the injector bore walls?

Gave it a test-start yesterday and it gave a little pop on start-up but otherwise seemed to run pretty good. The aftermarket temp-sender was reading high, and I think we're leaking a little exhaust into the engine-bay from somewhere after the turbo work. I assume I undermined a ground while I was rooting around in the instrument panels getting the copper-tubing installed. There's some kind of sketchy wiring up there

 

[pradoblivious]

so I have an oil leak on the bottom of the oil-return line from the turbo. When I disassembled the turbo I noticed that there was no gasket here. both sides of the oil line were metal to metal and slathered with that liquid-gasket stuff. I took a picture of the top of the line...

Thankfully, the turbo shop provided proper gaskets for both water lines and the top of the oil line. When I asked, they also provided a gasket for the bottom-side of the oil feed, which is the connection that's now leaking. Looking around, it seems like this gasket is part of a turbo gasket kit no longer available from Toyo. Still possible to get the kit after-market but looking at the photos, the feed gasket doesn't look any different than the one I got from the turbo shop. I kind of expected a ringed type gasket similar to the top-gasket pictured in the parts kit (bottom left)

Anybody have any experience properly sealing that line? Thanks in advance as always

 

[pradoblivious]

I think I probably want a gasket with a ring in it like this one?

 

[FJBen]

Nothing wrong with using gasket sealer, a good FIPG, high temp FIPG will work great if you can't find the right gasket.

Or for $2.89 drift motion carries that gasket.
CT Turbo Oil Drain/Feed Gasket - https://www.driftmotion.com/CT-Turbo-Oil-Drain-Feed-Gasket-p/dm3128.htm

 

[AirheadNut]

Damaging the injector bore probably isn't as big of a deal on a cast iron head, I would just be concerned about making a burr that would damage the injector nozzle on installation. I'm a bit paranoid about stuff like that though, especially with the aluminum cylinder head on my TDI.

 

[pradoblivious]

Nothing wrong with using gasket sealer, a good FIPG, high temp FIPG will work great if you can't find the right gasket.

Or for $2.89 drift motion carries that gasket.
CT Turbo Oil Drain/Feed Gasket - https://www.driftmotion.com/CT-Turbo-Oil-Drain-Feed-Gasket-p/dm3128.htm

awesome. That's the top gasket with the return line, I just need the simple one that connects to the block.. It looks like they sell a kit that includes it, and from the picture their version _does_ have a ring in it

 

[pradoblivious]

jeeze it's running nice now.



I guess that's maybe how it should have come back from the engine-swap in the first danm place huh?

 

[pradoblivious]

Before and after....

 

[AirheadNut]

Looking great! That engine sure sounds sweet, hopefully it will be good to go for a long time now. If you ever make it up this way be sure to let me know, I'd love to meet up.

 

[pradoblivious]

not trying to jinx myself but current plan is to put some new tires on it, mount the tent and head north in a few weeks. Fingers crossed we'll be in livingston by the 25th. I'll try my damnedest, and let ya know if/when we get up your way

 

[FJBen]

She sounds good and very familiar to me

Nice work.

 

[pradoblivious]

kinda tired of oil in my hair, so felt like it was time to replace the hood-liner.