| Header Gasket [message #329279] |
Mon, 19 February 2018 10:16  |
Russell K.
Messages: 178
Registered: October 2016
Location: Dunedin, Florida
Karma:
|
Senior Member |
|
|
On a recent trip, our GMC ('78 403) developed an exhaust noise. On Saturday I found the exhaust leak at the number 8 cylinder where it looks like a small piece of the header gasket broke and blew out. I ordered the Mr. Gasket 7170 copper gasket to put in. I have older Thorley headers (date unknown). My questions are: 1) Do I need to remove the AC bracket to remove the passenger side header? 2) Which RTV gasket sealer should I use, if any? 3) Should I replace the donut gasket at the same time? 4) Can I replace the gasket with just top and bottom access (jacked up), or do I need to remove the fender well liner?
Any tips or tricks are greatly appreciated. Thanks.
1978 Eleganza II, Dunedin, Florida
[Updated on: Thu, 22 February 2018 04:39] Report message to a moderator |
|
|
|
GMCforum
Search
Help
Register
Login
Home
