cleaning heads
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Senior User
Joined: Mar 2006
Posts: 152
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From: Near Allentown
cleaning heads
I just pulled the heads on my 351m. I heard that i should clean them up before re assembling. I scraped the gaskets, but what else needs to be cleaned before putting them back on? Also, what should i spend on new head gaskets?
Moderator
Joined: Dec 2001
Posts: 22,436
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From: Louisville,Ky.
I would clean up the combustion chambers where the valves are. A wire wheel on a drill works pretty good. Remove all of the carbon build up that you can. Also make sure that the oil return holes are open.
Why did you pull the heads?
Why did you pull the heads?
Thread Starter
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Senior User
Joined: Mar 2006
Posts: 152
Likes: 0
From: Near Allentown
I pulled the heads because i had to get some manifold bolts drilled out. My one friend says i should do some valve lapping. Is that important to do? I'm wanting to get it back on the road as quick as possible so i'm not to enthusiastic to do that unless i really should.
Thanks for you help!
Thanks for you help!
Elder User
Joined: Jun 2003
Posts: 886
Likes: 1
From: Houston/Hope BC
I'm probably too late, but the thing to do is fill the ports up with solvent (varsol or kerosene or similar) and see how bad the valves leak. It is practically free to pop the valves out and hand lap them and to put new stem seals on. Of course, while everthing is apart, you can do a nice job cleaning up all the parts without driving dirt in between the moving parts. Gl
