Head Gasket Replacement
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Stage I
Joined: May 2020
Posts: 1
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From: MA
Head Gasket Replacement
Hey all so im currently in the process of doing a headgasket my question is that since i havnt pulled the cylinder would my base gasket still be good to run or is it junk now that theres no pressure. id rather not pull the cylinder if i dont have too gasket has never leaked on me. thanks
HDF Community Team
Joined: Dec 2011
Posts: 8,547
Likes: 3,974
From: San Diego, CA
Well, I'd suspect you probably should change it, even if it's a PITA. Otherwise, you just know if you don't it will start leaking. My front one has seeped a bit for years, nothing a quick wipe with a rag won't take care of. If I ever decided to change it, might as well toss on a 1275 kit since the jugs are off already. I'd wait for a few more opinions for sure.
John
John
Road Warrior
Joined: Sep 2017
Posts: 1,609
Likes: 694
From: over the mountain
Ive pulled the heads several times with out replacing the base gaskets with no issues. Think how many times hammer pulls and replaces the heads while testing without changing the base gaskets. They even re use the head gaskets till the finish starts to wear. But there are some that are **** and will change every thing if they are going in. Do what you feel is best for you.
Grand HDF Member
Joined: Dec 2012
Posts: 3,782
Likes: 1,202
From: river
I reuse cometic base, head and rocker gaskets all of the time.
Cruiser
Joined: Apr 2012
Posts: 193
Likes: 22
From: California
I would say if you feel that the base gasket has broken its seal from the cylinder in the process of what you are doing then yes. If you dont think you moved it enough to break the seal it has made then you should be good to go. One trick is small PVC pipe sliped over the two cylinder studs a washer and nut to keep down ward pressure so as to not break the seal.
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