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  • December 12, 2018, 06:32:43 PM

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Author Topic: Valve cover questions  (Read 743 times)

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Offline luvmyeagle

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Valve cover questions
« on: March 12, 2018, 05:30:59 PM »
I have replced valve cover gaskets twice, once with felt and the second with rubber.  Not having any luck with either.  I even replaced valve cover.  I was told that I don't need a gasket at all just silicone engine and valve cover.  Is this correct?  Also how do I get around the A/C line that goes over valve cover?  I don't want to unhook if possible as A/C works great.  Any suggestions appreciated.

Offline mo.eagles

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Re: Valve cover questions
« Reply #1 on: March 12, 2018, 06:27:45 PM »
Do you have the plastic v.c. or aluminum one ? I'm not trying to be ignorant but are you sure it's the v.c. leaking? I used High Tack to hold gasket in place and did not over torque the bolts. My AC does not work so the line was not an issue for me .
 
'85 wagon Limited   tilt wheel , cruise control
power seats ,windows and locks
rear window washer /wiper 
tach and gauge package
A/C
 '85 wagon   power windows and locks
rear window washer/wiper
factory tow package
A/C
 '84 wagon parts

Offline luvmyeagle

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Re: Valve cover questions
« Reply #2 on: March 12, 2018, 06:51:39 PM »
I think it is the gaskets but I'm wondering do I need a gasket?  I was told no but I think I need one. The a/c works great so I do not want to unhook it, can I go to a metal cover without driliing or tapping it?

Offline AMC1

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Re: Valve cover questions
« Reply #3 on: March 19, 2018, 04:01:58 PM »
If it's leaking with a gasket why would you think it won't without one. Maybe you're thinking if using a liquid cement etc. Both plastic & aluminum covers require a gasket but I suppose you could try something else. I have both plastic & aluminum in different cars. Neither leak. The aluminum I had to tap the (5) side holes but not the front & rear. I didn't have to drill any of them.
1976 gremlin
pair of 1983 SX4's sports
1946 Cushman step-thru

Offline 4x4jollyr

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Re: Valve cover questions
« Reply #4 on: September 30, 2018, 02:35:42 PM »
AMC1- "The aluminum I had to tap the (5) side holes but not the front & rear. I didn't have to drill any of them."

Were the front and rear holes already there, or did you go without? I think I'm reading in other posts only 5 fasteners are needed- 3 on drivers, 2 on passenger side. My cylinder head w plastic cover only has these 5 holes (2 not tapped). I'd have to drill the firewall (rear) side(ain't happening w/o pulling head) and the front hole.

Offline AMC1

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Re: Valve cover questions
« Reply #5 on: October 12, 2018, 04:08:13 PM »
had a problem here & don't know if this went through partially. You should be able to use all 7 holes. Tap the sides to 5/16-18 but check on this. I found 3 holes on the passenger side & 2 On Drivers. Make sure all 7 holes in the head line up with the cover. Mine didn't. I had to slightly enlarge a couple of holes in the cover but it was no big deal. Start at the rear & accept that hole & work forward. One important thing however is to try & place a puddy knife between the torque down bolts & the cover. I could which meant I torque down the bolts but not the cover. I simply added small washers.
1976 gremlin
pair of 1983 SX4's sports
1946 Cushman step-thru

Offline 4x4jollyr

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Re: Valve cover questions
« Reply #6 on: October 14, 2018, 08:20:57 PM »
OK, thanks for the help!

Offline AMC1

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Re: Valve cover questions
« Reply #7 on: October 19, 2018, 05:16:39 PM »
Actually when enlargening the holes you want to slot them - not increase the inside diameter with a larger drill bit.
1976 gremlin
pair of 1983 SX4's sports
1946 Cushman step-thru

 

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