Wastegate?

drmmr15 · 01-09-2007, 09:38 PM

To replace the turbo to manifold gasket, do i have to remove the turbo?
Also, if I have to replace the wastegate actuator, do I have to also replace the Turbo? Is it easy to replace the wastegate actuator and rod? Thanks.

IHateHacks · 01-10-2007, 02:21 AM

"To replace the turbo to manifold gasket, do i have to remove the turbo?"

Yes you do. How else would you replace the gasket in between the turbo and the exhaust manifold?

It's really not a difficult job, you just have to remember where everything goes, and hope you don't break any studs or bolts. These cars are 20 years old and things that have been together that long don't like to come apart.

"Also, if I have to replace the wastegate actuator, do I have to also replace the Turbo? Is it easy to replace the wastegate actuator and rod?"

No you don't have to replace the turbo to replace the wastegate acutator. Once you have the turbo off it is very easy to replace the wastegate actuator and rod. Actuator is bolted on, rod is held on by a tiny C-clip. You will need a pair of C-clip pliers and I'm sure the clip/rod/actuator is a dealer only item. Turbo must be off the replace the wastegate actuator.

Where about do you feel the exhaust leak? Can you hear it while in the car driving? If not can you hear it while you are under the hood and someone else is reving it?

drmmr15 · 01-10-2007, 07:03 AM

Thanks. I can hear it while Im driving. It's coming from in front of the glovebox area. When we blocked off the exhaust, we heard it coming from the turbo area, but felt around and couldnt find it. That's why I though it was the wastegate stuck open. I have tried pulling on the rod, and it doesnt budge. I am going to pull the turbo off anyway to check everything, replace gaskets, and studs and bolts if I can find 'em, and maybe even the wastegate actuator and roc if it is the problem. Ill let you know what I find, and Ill take some pics. Probably wont have the thing off till Thursday or Friday. Thanks again.

IHateHacks · 01-10-2007, 01:38 PM

When the turbo is off, take a picture of where the actuator rod connects to the wastegate valve and I'll tell you if its open or closed.

drmmr15 · 01-11-2007, 01:07 AM

DO I have to drain the coolant to remove the turbo? I got to the point of removing the coolant lines, and Im not sure if I must drain the coolant to remove these?

IHateHacks · 01-11-2007, 04:07 PM

It's not going to hurt anything if you don't drain the coolant.

If you haven't done a coolant flush to your car yet, here's a perfect time to do so.

Have fun getting the coolant hose off of the union pipe (lower of the 2 coolant hoses).

drmmr15 · 01-12-2007, 07:36 AM

FYI - Its a good idea to drain SOME coolant. I pullant the coolant lines off the turbo, and one of them spewed about a quart of coolant through the engine onto the garage floor.

Should have the turbo off tomorrow.

01-09-2007, 09:38 PM	#1
drmmr15 3" Exhaust Join Date: Jul 2006 Location: Seattle, WA Posts: 73	To replace the turbo to manifold gasket, do i have to remove the turbo? Also, if I have to replace the wastegate actuator, do I have to also replace the Turbo? Is it easy to replace the wastegate actuator and rod? Thanks. __________________ 1987 Supra Turbo GReddy TT Open Element Filter (<---not sure what brand) YAY BOOST!!!!....finally... Last edited by drmmr15; 01-10-2007 at 12:39 AM.

01-10-2007, 07:03 AM	#3
drmmr15 3" Exhaust Join Date: Jul 2006 Location: Seattle, WA Posts: 73	Thanks. I can hear it while Im driving. It's coming from in front of the glovebox area. When we blocked off the exhaust, we heard it coming from the turbo area, but felt around and couldnt find it. That's why I though it was the wastegate stuck open. I have tried pulling on the rod, and it doesnt budge. I am going to pull the turbo off anyway to check everything, replace gaskets, and studs and bolts if I can find 'em, and maybe even the wastegate actuator and roc if it is the problem. Ill let you know what I find, and Ill take some pics. Probably wont have the thing off till Thursday or Friday. Thanks again. __________________ 1987 Supra Turbo GReddy TT Open Element Filter (<---not sure what brand) YAY BOOST!!!!....finally...

01-11-2007, 01:07 AM	#5
drmmr15 3" Exhaust Join Date: Jul 2006 Location: Seattle, WA Posts: 73	DO I have to drain the coolant to remove the turbo? I got to the point of removing the coolant lines, and Im not sure if I must drain the coolant to remove these? __________________ 1987 Supra Turbo GReddy TT Open Element Filter (<---not sure what brand) YAY BOOST!!!!....finally...

01-12-2007, 07:36 AM	#7
drmmr15 3" Exhaust Join Date: Jul 2006 Location: Seattle, WA Posts: 73	FYI - Its a good idea to drain SOME coolant. I pullant the coolant lines off the turbo, and one of them spewed about a quart of coolant through the engine onto the garage floor. Should have the turbo off tomorrow. __________________ 1987 Supra Turbo GReddy TT Open Element Filter (<---not sure what brand) YAY BOOST!!!!....finally...

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01-10-2007, 02:21 AM	#2
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	"To replace the turbo to manifold gasket, do i have to remove the turbo?" Yes you do. How else would you replace the gasket in between the turbo and the exhaust manifold? It's really not a difficult job, you just have to remember where everything goes, and hope you don't break any studs or bolts. These cars are 20 years old and things that have been together that long don't like to come apart. "Also, if I have to replace the wastegate actuator, do I have to also replace the Turbo? Is it easy to replace the wastegate actuator and rod?" No you don't have to replace the turbo to replace the wastegate acutator. Once you have the turbo off it is very easy to replace the wastegate actuator and rod. Actuator is bolted on, rod is held on by a tiny C-clip. You will need a pair of C-clip pliers and I'm sure the clip/rod/actuator is a dealer only item. Turbo must be off the replace the wastegate actuator. Where about do you feel the exhaust leak? Can you hear it while in the car driving? If not can you hear it while you are under the hood and someone else is reving it?

01-10-2007, 01:38 PM	#4
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	When the turbo is off, take a picture of where the actuator rod connects to the wastegate valve and I'll tell you if its open or closed.

01-11-2007, 04:07 PM	#6
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	It's not going to hurt anything if you don't drain the coolant. If you haven't done a coolant flush to your car yet, here's a perfect time to do so. Have fun getting the coolant hose off of the union pipe (lower of the 2 coolant hoses).