1987 rx7 turbo problems

bundy · 07-22-2007, 08:44 AM

Hello, first time on. Purchased an 1987 rx7 turbo. My question, the turbo psi goes up slightly when you rev it hard, the last owner told me a mechanic said it's because the turbo is plugged, some small hole in it where the coolant goes is plugged, just wondering if any one has heard of this, or is there another reason.

thanks

bundy

bundy · 07-24-2007, 01:09 AM

Since no replies as of yet. I forgot to ask, is there a way I, myself can look at it to see if I can figure it out why it's not working ? or if it does work at all.

bundy

RageRX7 · 07-28-2007, 02:26 PM

Hard to say.. sounds like a plumbing issue.. I'm not sure what hole you're talking about, but if it's building up too much pressure, look to your BOV

KevinRX7 · 08-11-2007, 03:00 PM

Actually, I think I know what he's talking about, one of the oil lines might be plugged which is affecting the boost pressure.

I would just pull all the plumbing out one by one and clean it up, it would take an afternoon, but you could rest assured everything was all cleaned up.. no doubt needed it anyway even it that doesn't solve the problem.

Likewise like Rage said, could very well be your BOV as well

KevinRX7 · 09-06-2007, 11:31 AM

Bundy, you have any luck with this problem?

bundy · 09-19-2007, 01:50 PM

Well I was going to look at the turbo today finally, took off the top filter saying turbo 2. I was assuming it was there under that filter. WHERE the hell is the turbo on this thing.

rick2 · 09-20-2007, 01:30 AM

I'm guessing by that post that you aren't too familiar with what a turbo is, So I would suggest taking the car to a shop in your area that could help you...

however, if you still demand to learn from your own mistakes like myself...

the "filter" you took off was just the intercooler. If you followed the tubes attaching it, you would have found the turbo, which would look similar to this:

It will be mounted to a manifold on the passenger side of the engine, hooked up to both the intake box/filter, and the exhaust manifold. Another outlet would hook it up to the "filter" you looked at, which sounds to me like the top mounted intercooler.

If you still want to be able to work on it by yourself, before going further, I suggest reading Corky Bell's "Maximum Boost" (I found it in the automotive section at barnes+nobles)... not only will it teach you more than you ever wanted to know about turbocharging ANYTHING... it has a lot of good info on basic engine design for both EFI and carbeurated setups alike.

Supersonic · 09-21-2007, 06:20 PM

Yikes! you sure your car's a turbo? it's pretty hard to miss!

Maximum Boost is a GREAT book

07-22-2007, 08:44 AM	#1 (permalink)
bundy Junior Member Join Date: Jul 2007 Posts: 3	1987 rx7 turbo problems Hello, first time on. Purchased an 1987 rx7 turbo. My question, the turbo psi goes up slightly when you rev it hard, the last owner told me a mechanic said it's because the turbo is plugged, some small hole in it where the coolant goes is plugged, just wondering if any one has heard of this, or is there another reason. thanks bundy

07-24-2007, 01:09 AM	#2 (permalink)
bundy Junior Member Join Date: Jul 2007 Posts: 3	turbo still Since no replies as of yet. I forgot to ask, is there a way I, myself can look at it to see if I can figure it out why it's not working ? or if it does work at all. bundy

09-20-2007, 01:30 AM	#7 (permalink)
rick2 Senior Member Join Date: Jun 2007 Location: Henderson, NV Posts: 243	I'm guessing by that post that you aren't too familiar with what a turbo is, So I would suggest taking the car to a shop in your area that could help you... however, if you still demand to learn from your own mistakes like myself... the "filter" you took off was just the intercooler. If you followed the tubes attaching it, you would have found the turbo, which would look similar to this: It will be mounted to a manifold on the passenger side of the engine, hooked up to both the intake box/filter, and the exhaust manifold. Another outlet would hook it up to the "filter" you looked at, which sounds to me like the top mounted intercooler. If you still want to be able to work on it by yourself, before going further, I suggest reading Corky Bell's "Maximum Boost" (I found it in the automotive section at barnes+nobles)... not only will it teach you more than you ever wanted to know about turbocharging ANYTHING... it has a lot of good info on basic engine design for both EFI and carbeurated setups alike. __________________ '87 Blue RX-7 Coupe - the race car '99 Green MX-5 Roadster - my daily '77 RX-3 SP - the project car

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07-28-2007, 02:26 PM	#3 (permalink)
RageRX7 Senior Member Join Date: Jun 2007 Posts: 164	Hard to say.. sounds like a plumbing issue.. I'm not sure what hole you're talking about, but if it's building up too much pressure, look to your BOV

08-11-2007, 03:00 PM	#4 (permalink)
KevinRX7 Senior Member Join Date: Jun 2007 Location: Bay Area Posts: 132	Actually, I think I know what he's talking about, one of the oil lines might be plugged which is affecting the boost pressure. I would just pull all the plumbing out one by one and clean it up, it would take an afternoon, but you could rest assured everything was all cleaned up.. no doubt needed it anyway even it that doesn't solve the problem. Likewise like Rage said, could very well be your BOV as well

09-06-2007, 11:31 AM	#5 (permalink)
KevinRX7 Senior Member Join Date: Jun 2007 Location: Bay Area Posts: 132	Bundy, you have any luck with this problem?

09-19-2007, 01:50 PM	#6 (permalink)
bundy Junior Member Join Date: Jul 2007 Posts: 3	Well I was going to look at the turbo today finally, took off the top filter saying turbo 2. I was assuming it was there under that filter. WHERE the hell is the turbo on this thing.

09-21-2007, 06:20 PM	#8 (permalink)
Supersonic Senior Member Join Date: May 2007 Location: New York, NY Posts: 345	Yikes! you sure your car's a turbo? it's pretty hard to miss! Maximum Boost is a GREAT book