1987 supra turbo ?'s

mirage83 · 04-20-2009, 11:16 PM

Quote:

Originally Posted by DaBoss07

If I can find out the reason of the white smoke would be great.....cause thats the only thing that bothered me really. If someone can give me some advice that would be great.

White smoke and/or steam is generally coolant getting into the cylinders, and can mean a BHG (most likely), cracked head, or a cracked block. That the seller says they just replaced the hg a little while ago does NOT mean that they knew what they were doing and did a good job of it or that it fixed the problem if it wasn't the hg.

BTW, oil in the cylinders will give you greyish-dark smoke, and excess fuel (running rich) will be black.

The radiator fan knocking sounds like they may have screwed up the keyway on the crank where the harmonic balancer mounts. If so, that would really screw up the crank bearings given time. With the engine off try and rock the harmonic balancer a little, and with it running look and see if it's oscillating.

Not sure what the chug-chug sound is, though it "might" be compressor surge if the BOV isn't working properly.

All in all I'd at least do a test for exhaust gas residue in the radiator. Most radiator shops can do it quick and cheap, or you can do it yourself. That ought to tell you if you're looking at a bhg or not. In any case I'm not sure that I myself would trust the guy selling it. JMHO.

Oh, all rumors to the contrary, a properly maintained 7M is a good engine which can and will last a long time. There's no need to go to a non-7M engine in order to get a reliable engine so long as you take reasonable care of it.

DaBoss07 · 04-21-2009, 02:52 PM

Well most engines that are maintaned and not drove into the ground are going to be reliable but yea I know what you mean. Yea I think thas what I am going to do is take it up to a shope and find out what the white smoke or steam is.....cause he still says its from the fuel injector cleaner into it.

mirage83 · 04-21-2009, 03:02 PM

Fuel injector cleaner won't cause white smoke. So if you're serious about the car definately take it to a knowledgeable shop and have them check things out if you're not interested in doing it yourself.

stonehenge · 04-22-2009, 05:04 AM

I'm having a little bit of a similar problem with the smoke right now. I just bought a running and driving 89 turbo for $800. What is getting me is that the engine is running strong with no lag, and it actually runs at a decent temperature. The only time smoke comes out is under acceleration, and maybe a little puff at idle. Any Ideas on if it might be an easy fix?

The seller had a HKS controller wired into the ECM which I removed and that helped an idle problem. I'm wondering if the ECM got messed up by the installation.

DaBoss07 · 04-22-2009, 01:41 PM

Quote:

Originally Posted by stonehenge

I'm having a little bit of a similar problem with the smoke right now. I just bought a running and driving 89 turbo for $800. What is getting me is that the engine is running strong with no lag, and it actually runs at a decent temperature. The only time smoke comes out is under acceleration, and maybe a little puff at idle. Any Ideas on if it might be an easy fix?

The seller had a HKS controller wired into the ECM which I removed and that helped an idle problem. I'm wondering if the ECM got messed up by the installation.

Yea the one im looking at only does it when it idles but not all the time.

stonehenge · 04-22-2009, 01:49 PM

Quote:

Originally Posted by DaBoss07

Yea the one im looking at only does it when it idles but not all the time.

I'm going to spend some time this weekend looking at it to see what I can find. It's just a little embarrassing driving away from my house with smoke pouring out of the exhaust.

So two things.....

(1) today I found some damaged/loose wires at the ECM that I fixed.
(2) the car no longer blows blue/gray smoke and the check engine light turned off.........

odd...... Could this help anyone else? Probably not, but I thought I would share just in case you may have a ECM that had some things improperly installed.

DaBoss07 · 04-23-2009, 03:27 AM

So what does everyone think? Should I offer him 1250 for the car? Because that leaves me 1250 to fix the car up or should I offer him less?

DaBoss07 · 04-23-2009, 05:06 PM

Well I just offered him 800 bucks.....lets wait for the reply....

04-21-2009, 02:52 PM	#2
DaBoss07 Stock Join Date: Mar 2007 Location: Texas Posts: 18	alright Well most engines that are maintaned and not drove into the ground are going to be reliable but yea I know what you mean. Yea I think thas what I am going to do is take it up to a shope and find out what the white smoke or steam is.....cause he still says its from the fuel injector cleaner into it.

04-23-2009, 03:27 AM	#7
DaBoss07 Stock Join Date: Mar 2007 Location: Texas Posts: 18	decisions.. So what does everyone think? Should I offer him 1250 for the car? Because that leaves me 1250 to fix the car up or should I offer him less?

04-23-2009, 05:06 PM	#8
DaBoss07 Stock Join Date: Mar 2007 Location: Texas Posts: 18	lol Well I just offered him 800 bucks.....lets wait for the reply....

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04-21-2009, 03:02 PM	#3
mirage83 12psi boost Join Date: Feb 2007 Location: Georgia Posts: 359	Fuel injector cleaner won't cause white smoke. So if you're serious about the car definately take it to a knowledgeable shop and have them check things out if you're not interested in doing it yourself.

04-22-2009, 05:04 AM	#4
stonehenge Stock Join Date: Apr 2009 Location: Texas Posts: 7	I'm having a little bit of a similar problem with the smoke right now. I just bought a running and driving 89 turbo for $800. What is getting me is that the engine is running strong with no lag, and it actually runs at a decent temperature. The only time smoke comes out is under acceleration, and maybe a little puff at idle. Any Ideas on if it might be an easy fix? The seller had a HKS controller wired into the ECM which I removed and that helped an idle problem. I'm wondering if the ECM got messed up by the installation.