Hemi valve cover gaskets
#2430288
01/07/18 01:05 AM
01/07/18 01:05 AM
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Joined: Jan 2003
Posts: 12,171 Benton, IL.
DaveRS23
OP
Special needs idiot
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OP
Special needs idiot
Joined: Jan 2003
Posts: 12,171
Benton, IL.
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I have struggled sealing 2 areas on my Hemis. The first was the intake. Superformance gaskets with high tack has finally dealt with that. The second area is the valve covers. I have original stamped steel covers on MP/Edelbrock heads. After trying several different things, I have finally found some really cool gaskets. Fel-Pro #1629. I had already tried the regular Fel-Pros, not knowing that they also made these "performance" gaskets. Each of these #1629 gaskets is 2 cork/rubber gaskets with a steel mesh laminated between them. They are over 1/4" thick. If these don't do the job, I don't know what will. One down side to these gaskets, though. The holes in the gaskets did not line up well with the studs. I had to use a Dremel tool to slot most of the holes so that they lined up. The gaskets are plenty wide, so there is more than enough material to make this adjustment. Amazon has the best price on these, by far. FYI
Master, again and still
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Re: Hemi valve cover gaskets
[Re: cudaman1969]
#2430746
01/07/18 10:01 PM
01/07/18 10:01 PM
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Joined: Jan 2003
Posts: 12,171 Benton, IL.
DaveRS23
OP
Special needs idiot
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OP
Special needs idiot
Joined: Jan 2003
Posts: 12,171
Benton, IL.
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Don't forget that the spark plug tube depth is affected by the thickness of the valve cover gaskests another reason I call these pacaderm motors Hemiroids I thought of cutting the tube off at the bottom and letting the spark plug go right to the head. Those Milidon tube seals should work keeping the oil out right? Then silicone the top o-ring to the cover. I know once we put those tube seals on no oil got into the cylinders when spark plug was removed. Just to play it safe, before I put the spark plugs in, I went to the hardware store and got 8 12mm washers. The 14mm were too sloppy loose on the plugs . I had to open up the 12mm a little bit, but not too much to get them to fit the plug snug. Using them between the head and tube will give me more than enough height for the gaskets, which may compress enough over time so that I can safely remove the washers. And if any carbon builds up in the bottom threads, a tap will clean that up easily, if need be. I used the metric washers due to their smaller OD.
Master, again and still
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