need help just got an 87 turbo dont know if turbo is bad

[targa87turbo]

hey im new to supras i just got an 87 supra think the turbo seals are bad it idles very bad it so slow and it smokes like crazy after the turbo stops spoolin but how do i know its the turbo not the head gasket also did a block test and checked the oil and every thing was good

 

[SupaMan]

posting in the turbo section would prolly help you out better.

 

[targa87turbo]

ok isnt this tech discussion

 

[plaaya69]

How is the play in the turbo? any codes for the bad idle? have you done a compression test?


Edit: this is the section but you want the 7mGTE(turbo) not the 7mGE(non turbo) section.

 

[targa87turbo]

How is the play in the turbo? any codes for the bad idle? have you done a compression test?

just got it a couple of hours ago

 

[xarewhyayen]

blue-ish smoke or white smoke? does it happen when you start the car off after it cools down? Does it smoke under load while boosting? Is the car overheating? how is the oil level? how is the coolant level? does it look like there is water in the oil? Does the turbo make any noise under boost? did you take off the accordian hose (hose from the turbo to air filter) and wiggle the turbo shaft to see if there is alot of play?

The more info you give the better we can answer your question. Use the search tool as much as possible and narrow your post down to the closest section possible (this would be best in the turbo section, 7mgte)

 

[xarewhyayen]

just got it a couple of hours ago

do some research about the car and use the search button before you come and look for a magic answer. We can help you if you help yourself first.

 

[targa87turbo]

do some research about the car and use the search button before you come and look for a magic answer. We can help you if you help yourself first.

i did do some research the oil seals in the turbo are bad to my knowledge but i dont know why it s idleing bad dont know much about supra ilove honda so im new to this mk3 thing not looking for some magic answer just some help

 

[xarewhyayen]

kk, check out the things i said above in my first post. Let us know how those come out. Probably should get the turbo rebuilt for starters or you're gonna run low on oil and spin a bearing. Then go from there. A leak down test wouldn't hurt either.

 

[targa87turbo]

kk, check out the things i said above in my first post. Let us know how those come out. Probably should get the turbo rebuilt for starters or you're gonna run low on oil and spin a bearing. Then go from there. A leak down test wouldn't hurt either.

thanks alot going to check out that post asap:icon_bigg

 

[CRE]

Check for codes first and foremost... it's easy and doesn't involve turning one screw or pulling one coupler.

http://www.cygnusx1.net/Supra/TechTips/engine_error_codes.aspx

Yeah, the turbo may be leaking oil, but there are a dozen other things that I can think of that would effect your idle and the turbo itself isn't on that list. So, one problem at a time. Check for codes first.

 

[targa87turbo]

thanks for the info

 

[Kckazdude]

http://www.supramania.com/forums/showthread.php?t=76618

Read through that while you are studying up. It will help us alot.

 

[targa87turbo]

im just going to sell it for $1000 cash if i cant im going to scrap it but dont want to

 

[jetjock]

^ Good idea. That'll save everyone a lot of grief...

 

[targa87turbo]

yup sure would

 

[jetjock]

I'm curious. Why would you buy an engine that exhibited such symptoms? Only reasons I can see are A) You failed to properly inspect the vehicle or B) You accepted the problems and intended to effect repairs. Am I missing something?

 

[Jaguar_5]

And this is in the GE section?

So how many people actually realize that the TSRM gives exact instructions on how to properly inspect the turbo? I know it's tempting to just wiggle and guess but take it off the engine and use a dial gauge.

 

[targa87turbo]

i got the car with intentions of fixing it but these cars takes alot to keep up im a honda guy so ill just stick to what i know about

 

[Kckazdude]

Dude, that would require like so much work ....and money...and....