 Type IV valve cover issues...leaky SOB's |
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| Bruce Allert |
 Mar 19 2003, 12:24 AM
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#21
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Hellions asleep  Group: Members Posts: 3,289 Joined: 19-March 03 From: Eagle Creek, Orygun Member No.: 441 Region Association: Pacific Northwest  |
I tried the rubber ones my first time adjusting the valves. I thought I did something wrong they leaked so bad! Got the cork ones, used the ultra grey, turned the VW logo upside down... still leaks. Not as bad but still a few drops on the floor. Haven't tried pulling the covers down. Gonna have to do that on the next adjustment.
bruce |
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| mr914 |
Mar 19 2003, 06:49 AM
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#22
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914 Hillbilly Group: Members Posts: 576 Joined: 11-January 03 From: Lincoln NE Member No.: 131 Region Association: None |
I use Indian Gasket Compound to stick my cork gasket onto the valve cover.
Then I smear a light coating of grease on the exposed side of the gasket. No problems with this method for over 15 years. |
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| brant |
Mar 19 2003, 06:35 PM
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#23
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914 Wizard Group: Members Posts: 11,603 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains 
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brad,
the napa ones are just cork.. only difference really is that they are a smidge thicker... I had tried tightening the bales too... but really do like the napa gaskets now.. usually I have no problem.. unless I'm pumping too much extra oil into the motor... we were also getting high rpm pressure at one time.. but seem to have licked that.. b |
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| Evill Ed |
Mar 19 2003, 07:28 PM
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#24
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Member Group: Members Posts: 238 Joined: 28-February 03 Member No.: 371 Region Association: None |
QUOTE(brant @ Mar 19 2003, 04:35 PM) usually I have no problem.. unless I'm pumping too much extra oil into the motor... we were also getting high rpm pressure at one time.. but seem to have licked that.. b How did you solve the high rpm pressure in the valve covers? I am having that problem with mine. Ed |
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| Rog914 |
Mar 19 2003, 07:29 PM
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#25
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914 Fanatic Group: Members Posts: 129 Joined: 5-January 03 From: Reisterstown,Md Member No.: 93 |
Has anybody tried that PP techical artical "914 valve cover modification" where you spot weld a 1/4" strip of sheet metal on the inside of the valve cover to help support the gasket all the way around? Or would there be more of a chance of warping the cover when welding? Just want to throw around some other ideas.
Ralph 74 2.0 |
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| Evill Ed |
Mar 19 2003, 07:32 PM
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#26
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Member Group: Members Posts: 238 Joined: 28-February 03 Member No.: 371 Region Association: None |
I welded a strip around the inside of mine. I welded it around the entire perimeter, making a chanel for the gasket to sit in. This reduced sepage alot. I think the extra lip helps to keep oil from entering between the gasket face and head surface. It was definitely a step in the right direction in my opinion.
Ed |
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| Brad Roberts |
Mar 19 2003, 11:42 PM
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#27
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
Like this:
HPH sells these already done. We use them on all the race engines that see 8k+ rpm. |
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| Brad Roberts |
Mar 19 2003, 11:48 PM
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#28
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
Here is a better shot. Pretty easy to install.
Oh.. HPH uses new covers to make these up. B |
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| ChrisFoley |
Mar 20 2003, 07:18 AM
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#29
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I am Tangerine Racing Group: Members Posts: 7,907 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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I like that. By welding the strips up high it reduces warpage, maybe actually introduces a slight curvature which increases the pressure on the gasket at the middle. When the bale is moved into place it would tend to flatten out any curvature.
In additon to adding the inner support for the gasket, I recurve my bales to add more pressure. I use the aluminum covers too, but the gasket surface must be milled flat, and the flat on the outer surface where the bolt goes must be milled because it is on the wrong angle for a good seal. Not worth the trouble for most people. |
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