Exhaust leak after Berk HFC & F.I cbe install

F.I. Inc. · 02-10-2013, 07:55 PM

Quote:

Originally Posted by apatter8

Z1 gaskets may be the solution then. I may have unevenly torqued the bolts on the passenger side, due to the top one being so hard to get to. I normally tighten in increments, but since the top bolt is so hard to get to I tightened it all at once.

There is nothing wrong with the gaskets I sent you. I have been using them for 6 months now and just got finished doing extensive dyno testing on a twin turbo car with them last week. No leaks at all.

1) Make sure that you DID NOT use the stock metal crush ring from the stock catalytic converters.

2) Make sure the two mating surfaces are clean.

3) The bolt holes on our gaskets are slightly over sized to the stock studs and bolts so our hardware can fit through it. When you tighten everything down make sure the gaskets are not cocked one way or another and that any excess that might peek out between the two flanges is even all the way around.

4) Last but not least, no dig at the Berks but make sure the flanges are not warped.

If you have any questions at all, please do not hesitate to call me directly at the shop.

Thanks, Tony

apatter8 · 02-10-2013, 08:19 PM

Quote:

Originally Posted by F.I. Inc.

There is nothing wrong with the gaskets I sent you. I have been using them for 6 months now and just got finished doing extensive dyno testing on a twin turbo car with them last week. No leaks at all.

1) Make sure that you DID NOT use the stock metal crush ring from the stock catalytic converters.

2) Make sure the two mating surfaces are clean.

3) The bolt holes on our gaskets are slightly over sized to the stock studs and bolts so our hardware can fit through it. When you tighten everything down make sure the gaskets are not cocked one way or another and that any excess that might peek out between the two flanges is even all the way around.

4) Last but not least, no dig at the Berks but make sure the flanges are not warped.

If you have any questions at all, please do not hesitate to call me directly at the shop.

Thanks, Tony

Thanks for the reply Tony. I thought about calling you, but it was late on a Sunday and I didn't want to bother you. My thinking in using the Z1 gaskets was that their added thickness may compensate for any warped flanges. I'll check the things you mentioned tomorrow, and I may give you a call.

MJB · 02-10-2013, 08:23 PM

This picture was posted by mleroux in the 350z forum. I won't mention what HFC's these are, but I know the company acknowledged the problem. Like I mentioned before, I always check the flanges on any new TP or HFC to make sure they are straight. If the gaskets aren't effective, than I would pull the cat off and check.

I've had flanges on a pair of TP's once that were alot worse than in the picture. I won't mention the company, but I sent them back and got another pair.

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