Troubleshooting TT Z06: What am I missing?
10-21-2017, 05:34 PM
#21
Racer
Thread Starter
Update: Ended up having two broken valve springs after taking it all apart. I had the machine shop check everything out and make sure nothing else was damaged. I changed all the valve springs to BTR 660's and put it all back together.
The car seems to be running great now, no more vacuum issues.
The car seems to be running great now, no more vacuum issues.
10-22-2017, 05:13 AM
#23
Le Mans Master
which cyl and which springs broke?
were they both intake valve or exh or both?
if the intakes on 2 cyl didn't close right, you would see a vacuum diff if the cam was hanging the valve open for sure
glad you found the problem and the car is back healthy!
I'd want to find out why those springs failed.
were they both intake valve or exh or both?
if the intakes on 2 cyl didn't close right, you would see a vacuum diff if the cam was hanging the valve open for sure
glad you found the problem and the car is back healthy!
I'd want to find out why those springs failed.
Last edited by Rkreigh; 10-22-2017 at 05:14 AM.
10-22-2017, 08:57 AM
#24
Racer
Thread Starter
The intake spring on #4 cylinder broke. That was the only one I noticed. When I took it to the machine shop, they found the 2nd broken spring but didn't take notice to which spring it was. Also interesting was that it was the outter spring that broke on both.
I agree, I want to know why the springs failed but I don't know that I will ever find out. My guess is they are springs that the machine shop installed so they were not a brand spring most of us know. Perhaps it was a manufacturing issue with that brand.
Drew, what is the status of my old car? Is it running and boosted? Man I miss that thing.
I agree, I want to know why the springs failed but I don't know that I will ever find out. My guess is they are springs that the machine shop installed so they were not a brand spring most of us know. Perhaps it was a manufacturing issue with that brand.
Drew, what is the status of my old car? Is it running and boosted? Man I miss that thing.
10-22-2017, 12:59 PM
#25
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The intake spring on #4 cylinder broke. That was the only one I noticed. When I took it to the machine shop, they found the 2nd broken spring but didn't take notice to which spring it was. Also interesting was that it was the outter spring that broke on both.
I agree, I want to know why the springs failed but I don't know that I will ever find out. My guess is they are springs that the machine shop installed so they were not a brand spring most of us know. Perhaps it was a manufacturing issue with that brand.
Drew, what is the status of my old car? Is it running and boosted? Man I miss that thing.
I agree, I want to know why the springs failed but I don't know that I will ever find out. My guess is they are springs that the machine shop installed so they were not a brand spring most of us know. Perhaps it was a manufacturing issue with that brand.
Drew, what is the status of my old car? Is it running and boosted? Man I miss that thing.