Author Topic: Exhaust manifold gaskets??  (Read 230 times)

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Offline Derick

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Exhaust manifold gaskets??
« on: February 03, 2018, 01:25:29 am »
Hey all, I starting breaking things down to do some pre-spring maintenance of hose and oring replacement on the connie. I have a few oddities I wanted to ask about.

1) in the clymer manual, it says you have to drain the oil to drop the exhaust....really??
2) it says to remove and replace "gaskets" that are between the headers, and the motor. Is that for real? Only gaskets I found on murphs for the exhaust were for the mufflers, and the crossover.
3) Do I need to remove them entirely to replace the coolant log orings, or can i let the pipes just chill for the bit while I'm replacing the rubber bits?
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Offline turbo-max

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Re: Exhaust manifold gaskets??
« Reply #1 on: February 03, 2018, 03:55:34 pm »
no, you do not have to remove the exhaust to drain the oil.
turbo lag is a courteous head start!    ~Jeff H
99 c-10 "the purple monster"
01 c-10 undergoing turbofacation     
03 c-10 some mods...alot of miles
several other c-10's in pieces!

Offline Derick

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Re: Exhaust manifold gaskets??
« Reply #2 on: February 03, 2018, 07:31:40 pm »
Lol you read that backwards
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Online Rev Ryder

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Re: Exhaust manifold gaskets??
« Reply #3 on: February 03, 2018, 07:49:38 pm »
You'll want to drain the oil I suspect to be able to get the oil cooler out of the way.
I suspect you are going to drop the exhaust to swap out the o-rings in the front water log on the cylinders.  Of course you will already have drained the radiator and moved it out of the way too.  You probably could get away without draining oil if you just leave things near their place and just gain "access" to the hoses and water log.  But pulling the cooler would probably make it easier/cleaner.

The exhaust gaskets are simple copper rings.  They can be reused without issue IMHO.  At least I have done so many times without a problem.


EDIT TO ADD:
You might want to pull the oil cooler banjos at the engine end of the hoses rather than the cooler end.  I've seen several coolers crack from frozen bolts or over tightening upon re-installation.  It's definitely a piece that can be damaged easily.
« Last Edit: February 03, 2018, 07:55:24 pm by Rev Ryder, Reason: Add info »
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Offline turbo-max

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Re: Exhaust manifold gaskets??
« Reply #4 on: February 04, 2018, 03:59:11 am »
Lol you read that backwards

 :-[ yes i did!  :D
turbo lag is a courteous head start!    ~Jeff H
99 c-10 "the purple monster"
01 c-10 undergoing turbofacation     
03 c-10 some mods...alot of miles
several other c-10's in pieces!