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[ 9 posts ] |
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Valve covers leaking and sealing thoughts?
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Lobobronco
Official CCB Member
Joined: Wed Sep 29, 2010 9:20 am
Posts: 289
Location: Denver, CO
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 Valve covers leaking and sealing thoughts? I finally got the engine compartment cleaned up and for the life of me can not get the valve cover gaskets (yup...both on the back side where the engine leans down) to seal. I know...not super techincal, but really annoying me  ! Tried the cork and it leaked and then went with the high dollar feelpro rubber with metal (pn vs 13264 T) and still have a leak. With that being said, I haven't tried RTV yet and get mixed messages on using it. These are the standard stamped valve covers. I know they have problems, but haven't had issues in the past. As far as I can tell they are not warped and the surface is uber clean. Any thoughts and or tips or tricks? Probably should mention it is for a 351W. Thanks in advance! Matt
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Her name is Lucy...and well...that's who she is!
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| Wed Apr 24, 2013 7:47 pm |
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akaFrankCastle
Official CCB Member
Joined: Wed Oct 27, 2010 6:25 pm
Posts: 4901
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Location: Colorado Springs
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Re: Valve covers leaking and sealing thoughts? Running a PCV on your valve covers?
My thought is time for new VCs. RTV is just going to be a mess. Mine leak too. But I just think of it as positive feedback that I still have oil in the engine.
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Stroppe'd
1972 Sport, 302, 3 speed with old school Duff floor shifter, T shift Dana 20 with JB Fab twin stick, 4.11 gears with Trac-loc, Lincoln hydroboost, Chevy disc conversion, WH gas lift gate shock kit, 33" Duratrac tires on slots and about 2.5" of lift, Stroppe installed: bumper braces, dual shocks on all four corners, GM power steering, trans cooler mount, auto shift column, rollbar.
The Terrible One
1972 Sport uncut, 302, C4 with 1974 column , T shift Dana 20, 3.50 gears w/ limited slip, 1966 U13 Roadster kick panel, and factory power steering.
1973 Stroppe Baja project
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| Wed Apr 24, 2013 8:22 pm |
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horseplay
Official CCB Member
Joined: Mon Jan 21, 2013 8:24 pm
Posts: 408
Location: Grand Junction CO
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Re: Valve covers leaking and sealing thoughts? If the valve covers get over tightened they are prone to leak. The chevy style valve cover clamps help spread the pressure over more of the valve cover. Good luck
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| Wed Apr 24, 2013 8:57 pm |
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Lobobronco
Official CCB Member
Joined: Wed Sep 29, 2010 9:20 am
Posts: 289
Location: Denver, CO
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Re: Valve covers leaking and sealing thoughts? PVC valve definitely not changed lately! Good call!!
I have looked at the spreaders but not the Chevy style.
It is currently leaking like sieve and not fun to watch :(!
I agree with the RTV...dad said "no" when I was a kid :)!
Thanks for the suggestions!
A slight;y annoyed.....Matt
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Her name is Lucy...and well...that's who she is!
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| Wed Apr 24, 2013 10:09 pm |
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akaFrankCastle
Official CCB Member
Joined: Wed Oct 27, 2010 6:25 pm
Posts: 4901
Images: 0
Location: Colorado Springs
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Re: Valve covers leaking and sealing thoughts? I dunno why I can't stop calling it a PCV.
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Stroppe'd
1972 Sport, 302, 3 speed with old school Duff floor shifter, T shift Dana 20 with JB Fab twin stick, 4.11 gears with Trac-loc, Lincoln hydroboost, Chevy disc conversion, WH gas lift gate shock kit, 33" Duratrac tires on slots and about 2.5" of lift, Stroppe installed: bumper braces, dual shocks on all four corners, GM power steering, trans cooler mount, auto shift column, rollbar.
The Terrible One
1972 Sport uncut, 302, C4 with 1974 column , T shift Dana 20, 3.50 gears w/ limited slip, 1966 U13 Roadster kick panel, and factory power steering.
1973 Stroppe Baja project
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| Wed Apr 24, 2013 10:15 pm |
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Justin
Official CCB Member
Joined: Sun Oct 10, 2010 12:04 am
Posts: 6198
Images: 0
Location: Lakewood
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Re: Valve covers leaking and sealing thoughts? It is PCV- positive crankcase ventilation.
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| Wed Apr 24, 2013 11:43 pm |
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Kinder
Official CCB Member
Joined: Wed Sep 29, 2010 10:03 pm
Posts: 4371
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Location: Parker, CO
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Re: Valve covers leaking and sealing thoughts? If they were over tight then you could use a socket / steel tube to correct the problem. Flip them over on something that has relief under the bolt area and reshape it, should do the trick.
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Best to Date MPG: 26.6
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| Thu Apr 25, 2013 6:46 am |
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Booger
Official CCB Member
Joined: Thu Dec 23, 2010 6:55 pm
Posts: 809
Location: Broomfield
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Re: Valve covers leaking and sealing thoughts? I'm with kinder on this. Take a look at the flange area because if they've been overtightened with cork gaskets the area around the bolt could be distorted. Also look at the head sealing surface. It might have a divot or dip to it and allow oil to leak.
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Bob - Turning hydrocarbons into noise since 1970
Spiritual owner of the now Zoso mobile (1974 Bronco Ranger - EFI 351W-4R70W-ARB front and rear-STC softtop- High Country hood-3 1/2" WH lift- Cross inboard rear shock mnt- Duffs bumpers- Warn 8274- 33's- Cheby disc conversion)
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| Sun Apr 28, 2013 8:27 am |
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Lobobronco
Official CCB Member
Joined: Wed Sep 29, 2010 9:20 am
Posts: 289
Location: Denver, CO
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Re: Valve covers leaking and sealing thoughts? Kirk was correct! I should have looked a little better. Some flange straightening and she is all sealed up.
Thanks for the input!
Matt
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Her name is Lucy...and well...that's who she is!
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| Sun Apr 28, 2013 10:32 am |
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