?Rebuilt Motor Help!!!

[mirage83]

Exhaust manifold leaks aren't unknown on the 7M. In fact, if I remember correctly the relative softness of the head allows the EM studs to back/strip out eventually. That could well be the cause of your exhaust manifold leak. One of the better aftermarket Supra parts suppliers stocks a replacement stud kit for this, works like a charm and is under $100.

That leads to the question, are you certain the leak is at the manifold and not at the elbow or other gasketed joint? No matter where it is you'll want to fix it before you run it again or the exhaust gasses will start eroding & possibly cutting the surfaces, making sealing the thing back up difficult without some machining work.

You can get your turbo rebuilt for less if money is an overriding issue. There's a place in Canada I sent mine too a few years back, they did a good job on it for about $300. Blast Performance I think the name of the place was.

And don't let us talk you into or out of anything. We're simply making some observations and presenting our opinions and the reasoning behind them. Only you know your exact situation, how much time & money you're prepared to put into the car.

[cre]

Originally Posted by mirage83

Exhaust manifold leaks aren't unknown on the 7M. In fact, if I remember correctly the relative softness of the head allows the EM studs to back/strip out eventually. That could well be the cause of your exhaust manifold leak. One of the better aftermarket Supra parts suppliers stocks a replacement stud kit for this, works like a charm and is under $100.

Yeah, helicoil kits; Some of which accept the stock studs some come with new studs. BTW - They're a miserable HELL to install with the head still on the engine... I do NOT recommend trying it. Get it in crooked or crack the surrounding metal and you're really hosed. /disclaimer I've never experienced any trouble with a stud pulling out, but it is common. Make sure you don't over torque the studs, it'll help with the longevity and durability of the threads in the head.

Originally Posted by mirage83

And don't let us talk you into or out of anything. We're simply making some observations and presenting our opinions and the reasoning behind them. Only you know your exact situation, how much time & money you're prepared to put into the car.

Agreed.

[mirage83]

Found the kit I was talking about, as luck would have it it's a Drift Motion set...

http://store.driftmotion.com/static/...uststudkit.php

Haven't used it myself, but several people at SupraMania who have gotten it swear by it for taking care of pulled studs. I don't remember how many of them attempted the repair with the head still on the engine though.

[cre]

Originally Posted by mirage83

I don't remember how many of them attempted the repair with the head still on the engine though.

A few, the rest learned from their mistakes.

[Raysupra]

well Im a Marine So I mean I can Buy what I need... Im not rich but I do pour my heart and soul into this car.. lol Its my shitty car dream.. and the car just needs to be put into my garage and Rebuilt ground up.. the harness scares me suspension blow.. rear calipers seized I just redid the Brake lines cause they were rusted.. new interior redid the guages, snapped the speed cable due to the line holding the cable Broke and was bending the cable
Its a Good motor just Every small thing that could need replaceing Does.. haha... I think the tranny has a Leak?

Ok Well I look at it this Way my Subframe Fits a 1jz 90 7m my friend has a 89 and basically Told me all the wrong things he did.. and helped me plan out my swap. If I do a swap basically everythings Compatible BUT Id need to rig up something for the intercooler and Exhaust... other than that its straight Forward buy the motor... and some general stuff Timing oil oilfilter and hopefully the coils are good. then just hope the new one has powersteering for comfort and call It good for 6-8 months till I can Redo all the cooling and breathing factors of the motor... Im looking at these numbers

around 1500-2000$ to Fix My current nightmare... or b 2600 to get the 1j in and maybe another 5-600 to get a custom exhaust and intercooler I found a intercooler for 100$ new from a buddy for a 1j and I can Make my own Exhaust the weekend after the swap I know a Fab shop has tons of extra piping.. Cut weld my own 3" up call It all A Great cheap quick job put a bic and Tip on it later.. .

Im just really stuck... I think my car is getting like 12mpg with no turbo llol plus I have NO power its annoying... I can take out a small Loan To get one or the other project started... btw this is my First supra and wont be the last hopefully a mk4 will come in 3-4 years ill buy something more complete lol not a halfway shitty project car..

thanks alot for the help so far you both have given me some things to think over I know Those Studs Are notorious for probs I can look at them and play around with my manifold Im 100% sure its leaking at the block I felt around.. Its been driven like that for awhile... not Too long ... one oil Change?heh .... wasn't worried I was thinking I would swap the motor.. btw i'd rather just buy a new turbo if i was to keep the 7m

[Green7mgte]

my 7mgte also has an exhaust leak. after the head was rebuilt I had just about everything in place and realized i had a stripped and F that noise of Undoing all the work. an exhausting 3 days. so I came up with a solution of getting a concrete lag bolt that would seal up my hole. either that or remove the head, tap, re assemble. which im prolly going to do anyhow. but with the lag bolt I would not need to remove my entire head. sorta a quick fix.

a side note.. exhaust leaks left unchecked will burn up the head and valv cover gaskets over time. my 2 cents on the rebuild or swap. the break down and repair of your 7m will be time consuming, expensive. I would suggest checking the integirity of the remaning moter to even see if its repairable then make a decision. think of what is going to be needed in the rebuild and assign it a value based on how important it is to you. the higher the importance the higher the number.. Money, is this important? if so assign it a high number. time? how important is that.. assign it a number.. (1-20 works) manual labor.. things of this nature. now do it for the 1jz swap and see wich has the higher numarical value. go with the lower one.

[Raysupra]

Originally Posted by Green7mgte

think of what is going to be needed in the rebuild and assign it a value based on how important it is to you. the higher the importance the higher the number.. Money, is this important? if so assign it a high number. time? how important is that.. assign it a number.. (1-20 works) manual labor.. things of this nature. now do it for the 1jz swap and see wich has the higher numarical value. go with the lower one.

Thanks good idea... my 7m will needs too much... im about 80% sure a new motor is the solution and ill look at your quickfix... after i look at my leak.. its so annoying... My old Turbo burnt up... I was running it at 12 psi... Could it burnt up of lack of oil or something?? I heard ppl running them at that and though wouldve been ok.. it was rebuilt had 5k on it...