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Unread 08-13-2015, 02:06 PM   #101
YYCSupra
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Anyone have a rear turbo high/low pressure oil lines from their 1jz that I could have / buy? Mine is leaking. I have a crack in the high pressure line and it keeps leaking onto my downpipe and causing a smoke show (the uncool kind, LOL).

I'll have to update my thread soon but long story short is I have delayed going single turbo. Instead I decided to install the spare set of 1jz turbos I had when I bought the car. Took forever to install, but the car is running however I have a significant oil leak that I have to deal with first before I can drive the car.

Also anyone know if I remove the oil line from the block that goes to the rear turbo will it leak oil badly? I guess what I'm asking is should I drain the fresh oil change just to change out this rear oil line?

Thanks for the help!
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1987 Toyota Supra, Pearl White, Turbo, Targa w/ Burgundy Leather
1990 Toyota Supra, Black w/ Burgundy Pearl, Turbo, Targa w/ Grey Leather
1991 Toyota Supra 1JZ Red w/ Grey Interior
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Unread 08-17-2015, 06:28 PM   #102
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Well, I used JB Weld on the holes on the rear turbo oil line and I will see tomorrow when I start up the car how it holds. If it doesn't work oh well, I'll have a shop weld a new piece on for me or buy an oil line kit. I really do not want to invest in this setup as I do not intend to keep it stock very long.

Back to my update...With the current economic conditions and the birth of my daughter, I have decided to wait a little longer before putting any more money into the Supra. I at least have a steering wheel and a stereo in it now.

I bought two ECUs from a guy on Supramainia so hopefully that fixes my bizarre issues. Once I go for my first test drive on my new turbos I will find out if it was my ECU that was the problem.

Depending on the condition of my twin turbos, here are the things I'd like to do next (in no particular order).
  1. Go single turbo with BW Turbo and single turbo kit (w/o turbo) from Driftmotion
  2. Standalone (likely w/ PNP megasquirt)
  3. Either buy another R154 or have mine rebuilt
  4. Buy an upgraded clutch (this will happen when I do the tranny swap)
  5. Tanabe Touring Medallion exhaust w/ 3" high flow cat
  6. Add back the Progressive Power steering (cable has been cut, not sure why).
  7. Fix the A/C (was working, I think it has a leak somewhere)
  8. Fix the Cruise Control (I have all the parts connected except the cable to the throttle body and I need to figure out the wiring to the stock on my celica steering wheel).
  9. Tein EDFC coilovers (I may get the EDFC Active Pro, but will see)
  10. New front tires (have some flat spots, ugh )
  11. Need an engine degrease
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1987 Toyota Supra, Pearl White, Turbo, Targa w/ Burgundy Leather
1990 Toyota Supra, Black w/ Burgundy Pearl, Turbo, Targa w/ Grey Leather
1991 Toyota Supra 1JZ Red w/ Grey Interior
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Unread 08-17-2015, 10:39 PM   #103
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Quote:
Originally Posted by YYCSupra View Post
and the birth of my daughter
Congratulations!!!
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Unread 08-18-2015, 11:12 AM   #104
YYCSupra
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Thanks Franco!
I'm definitely a proud Papa!

I'm about to fire up the Supra...wish me luck!
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1990 Toyota Supra, Black w/ Burgundy Pearl, Turbo, Targa w/ Grey Leather
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Unread 08-18-2015, 09:33 PM   #105
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Well, I have some good news and some not so good news...

The Good:
- The ECU I bought solved my erratic sputtering issue, car runs smooth now.
- The JB Weld held up and stopped the leaking from the high pressure oil line onto my downpipe.

The Bad:
- The spare set of turbos I put on are also on their way out. I'm not sure if they are as bad as the other ones, but I'm definitely getting some smoke coming out of the tailpipe (which I suspected when I was "wetting" the turbos with oil prior to install). One of the turbos from old set of turbos I took off was leaking through into turbine side which means it is definitely bad. On the newer set, one turbo was good, the other one the oil leaked through the compressor into the intercooler side of the turbo.
I think my next two upgrades will likely be a new cat-back exhaust and then a single turbo setup. I don't mind running with the stock ECU for a bit.

All in all, I'm happy that I can finally drive the car. Might even be in for a Supra cruise if there is one any time soon? I just wouldn't drive behind me when I'm going down a hill LOL!
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1990 Toyota Supra, Black w/ Burgundy Pearl, Turbo, Targa w/ Grey Leather
1991 Toyota Supra 1JZ Red w/ Grey Interior
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Unread 08-19-2015, 09:05 PM   #106
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I am going to try a few things to see if I can reduce the amount of oil slipping by my turbo oil seals. Here are the things I'm going to try.

**edited this.

Step 1: Use seafoam in the upper part of the engine.
Step 2: Use seafoam prior to oil change in the lower part of the engine (following their instructions)
Step 3: Use a higher weight oil, 10W40 engine oil (conventional oil).
Step 4: Use Auto-rx additive.
Step 5: Cross fingers

I'm currently using 10W30 Mobile 1. Once I get 500km on the turbos I will try the steps above.
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1987 Toyota Supra, Pearl White, Turbo, Targa w/ Burgundy Leather
1990 Toyota Supra, Black w/ Burgundy Pearl, Turbo, Targa w/ Grey Leather
1991 Toyota Supra 1JZ Red w/ Grey Interior

Last edited by YYCSupra; 08-20-2015 at 09:22 AM. Reason: Tweaked my steps.
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Unread 08-19-2015, 09:28 PM   #107
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Upon doing some reading, I think I will try the Auto-RX stuff first. It seems like a better system for fixing oil seals than the Lucas stop leak.
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1990 Toyota Supra, Black w/ Burgundy Pearl, Turbo, Targa w/ Grey Leather
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Unread 08-19-2015, 09:50 PM   #108
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If you don't want the engine, use that gunk, but personally I would avoid it if I liked my motor. It's just the thought of " what else is getting gunked?"
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Unread 08-20-2015, 02:18 AM   #109
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Also, the additive is supposedly akin to brake fluid. It works by swelling the seal (all seals) which can promote seal failure (all seals). I won't risk it, so o have never run the stuff, but I recommend avoiding it unless you don't care about the full result.
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Unread 08-20-2015, 09:19 AM   #110
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yeah, that's my concern with using additives. I've heard that seafoam does a great job of cleaning your engine. I used it on my M3 when I noticed a bit of stumbling after a cold start and it returned it to normal after using seafoam (top half only though). The Auto-rx seems like good route to try first. It cleans your seals which is a different approach than the Lucas product. Check out the before and after pictures from their website.

http://www.auto-rx.com/comparisonphotos/
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1990 Toyota Supra, Black w/ Burgundy Pearl, Turbo, Targa w/ Grey Leather
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