turbo manifold/engine gasket question.
02-18-14, 11:13 AM
#51
F**K THE SYSTEM!!
Thread Starter
Decision, decisions.
To keep or not to keep the flex pipe? That is the question.
3.5" flex pipe on my down pipe didn't last at all. Car hasn't had any real hard driving, just dyno time and about 12 pulls on the road. Is it the location of the flex pipe or maybe a cheap brand of flex? Either way, my current flex pipe wouldn't have lasted 3 months if the car was finished and I drove it more often. I don't plan on fixing it all the time, so what should I do? I want to eliminate the flex pipe but I don't want to crack my manifold down the road neither. What to do?
To keep or not to keep the flex pipe? That is the question.
3.5" flex pipe on my down pipe didn't last at all. Car hasn't had any real hard driving, just dyno time and about 12 pulls on the road. Is it the location of the flex pipe or maybe a cheap brand of flex? Either way, my current flex pipe wouldn't have lasted 3 months if the car was finished and I drove it more often. I don't plan on fixing it all the time, so what should I do? I want to eliminate the flex pipe but I don't want to crack my manifold down the road neither. What to do?
02-20-14, 06:00 AM
#52
You should be using the flex sections that are designed for turbo applications. If you are using a turbine housing with a welded in vband ring those always need to be resurfaced. Same with the downpipe after welding. It's normal for the vbands on the wg to leak a tiny bit, no way around it.
02-20-14, 08:17 AM
#53
F**K THE SYSTEM!!
Thread Starter
I need to figure out how to resurface the waste gate flanges on the manifold. I will research when I get a chance today after work.
I have also been researching exhaust expansion joints as a possible replacement for flex pipes. Those corrugated flex pipes used for wastegates, but they are expensive for 3-4"dia.
I have also been researching exhaust expansion joints as a possible replacement for flex pipes. Those corrugated flex pipes used for wastegates, but they are expensive for 3-4"dia.
02-20-14, 11:37 AM
#54
I need to figure out how to resurface the waste gate flanges on the manifold. I will research when I get a chance today after work.
I have also been researching exhaust expansion joints as a possible replacement for flex pipes. Those corrugated flex pipes used for wastegates, but they are expensive for 3-4"dia.
I have also been researching exhaust expansion joints as a possible replacement for flex pipes. Those corrugated flex pipes used for wastegates, but they are expensive for 3-4"dia.
02-24-14, 11:09 AM
#57
F**K THE SYSTEM!!
Thread Starter
I think I got my waste gates to seal better. I took them off and cleaned the mating surfaces with brake cleaner and a scuff pad. I also tightened the vband clamps more than before. I was afraid of stripping the small bolt and nut before but they can hold more torque than expected.
The only leaks left to attend to are on the down pipe. I'm kinda glad about that. But the "tsk tsk " sound is still there. So header and waste gates don't leak but I still have that header-leak-type sound. I might have wasted my time thinking header was leaking even though header was warped.
I have no idea why my down pipe/turbo vband leaks. I haven't dropped it and ruined the shape of the vband.
I might just get the whole down pipe redone.
The only leaks left to attend to are on the down pipe. I'm kinda glad about that. But the "tsk tsk " sound is still there. So header and waste gates don't leak but I still have that header-leak-type sound. I might have wasted my time thinking header was leaking even though header was warped.
I have no idea why my down pipe/turbo vband leaks. I haven't dropped it and ruined the shape of the vband.
I might just get the whole down pipe redone.
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