Sidepipe Bolts

[mpanten]

buy a set of remflex gaskets, it will take care of it.

Remflex exhaust gaskets (header - manifold - gasket) - OnLine Catalog

[thudmaster]

Now Howie, if that was my Spf I would weld them to the heads...........
I used grade 8 stainless bolts and nuts on Spf 2742. I had my son come over once a month and tighten everything for me. Of course he would have to take the car away for a day or two just to make sure he got it right.
How's the weather in Washington these days?

[greg schroeder]

The first problem I had was chunks of weld around the inside area of the headers and side pipes so they would leak and blow out gaskets. When I put a straight edge on either there were high spots. I fixed that and got new gaskets.

I used regular grade 8 bolts and these if I remember right.



but might have been these.



With the flat matching surfaces they never came loose. The bolts are used once and typically break when you take them off.

Never reuse the bolts even if they come off.

[Silverback51]

Originally Posted by mpanten

buy a set of remflex gaskets, it will take care of it.

Remflex exhaust gaskets (header - manifold - gasket) - OnLine Catalog

I have had nothing but problems with the Remflex gaskets at the header to side pipe flanges. They say to torque them to 10 to 12 FT/LB. I have tried split washers, star washers and crowned nuts. Some of them loosened and fell off within 20 miles.

I still use the Remflex gaskets at the header to head interface and love them there. Just won't use them at the header to side pipe any longer.

Guess I should add that I used three sets of the flange gaskets and always had the same problems.

[Dwight]

Years ago I had problems with the header gasket till I changed to Percy's Laminated Aluminum gaskets. Because they worked so well I made my flanged gasket from laminated aluminum sheet stock.

I was blowing out flange gasket within 50 miles. Tried red high temp gasket sealer and a gasket. Lastest 20 miles. So I made a sidepipe to header gasket out of laminated aluminum that I bought from McMaster Carr. Solved my leaking problems.

I used stainless bolts with lock washers.
Dwight

[mpanten]

Originally Posted by Silverback51

I have had nothing but problems with the Remflex gaskets at the header to side pipe flanges. They say to torque them to 10 to 12 FT/LB. I have tried split washers, star washers and crowned nuts. Some of them loosened and fell off within 20 miles.

I still use the Remflex gaskets at the header to head interface and love them there. Just won't use them at the header to side pipe any longer.

Guess I should add that I used three sets of the flange gaskets and always had the same problems.

interesting, i had a problem with the bolts falling out before, 2 years now not a loose bolt to be found. I just use the regular bolts and locking nuts and lock washers. I know some people who claim grade 8 bolts make the problem worse but I cant comment.

[timsullivan]

Grade 8 bolts and plain, metal lock nuts readily available form the local Ace Hardware. A bear to install and torque down but they have yet to come loose.

[mic n gill]

Castlenated nut and split pin, or lockwire---Mic