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Jul 21st, 2025 | | | | Joined: Sep 2008 Posts: 93 Shop Shark | | Shop Shark Joined: Sep 2008 Posts: 93 | It it easier to change the manifold gasket with taking out the bolts and switch out without disassembling the carb and ex. muffler first, spread and change???'''''''Thanks, Paul
Last edited by red 53 pickup; 06/20/2017 11:13 PM.
| | | | | Joined: Sep 2001 Posts: 29,262 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,262 | Paul, I am now in Scotland; and, after having a few nippy sweeties - I can almost understand your question(s).
You might want to edit your post; or, try again. | | | | | Joined: Sep 2008 Posts: 93 Shop Shark | | Shop Shark Joined: Sep 2008 Posts: 93 | I just want to change the manifold gasket with out taking everything apart...my body ain't what it use to be!!...Thanks, Paul | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | Which manifold gasket, intake to exh. Manifold or manifolds to head? Why do you think it needs to be changed?
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Sep 2008 Posts: 93 Shop Shark | | Shop Shark Joined: Sep 2008 Posts: 93 | Ex. manifold has a small leak and would like to change it out. ( might as well change intake also??) Thanks, Paul | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | You can do it that way if every thing is clean & in good shape. Usually you have to get it on the bench to scrape the surfaces. A thin coat of copper RTV on each side of the gasket helps fill any small imperfections. If it is leaking between the manifolds you will need to separate them. This leads to all sorts of problems like broken studs & such. If you are going to take the pipe off the ex. manifold its best to heat the nuts to a cherry red first.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | And use brass or Sibronze nuts upon reassembly. One also needs to loosely reassemble the manifolds, then bolt to the head securely, WITHOUT the gaskets, then tighten the manifolds together before inserting the gaskets and finishing up.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Sep 2008 Posts: 93 Shop Shark | | Shop Shark Joined: Sep 2008 Posts: 93 | Thanks for the help guys....Paul
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