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Engine Valve Cover Leak

  • Thread starter Thread starter theconductor
  • Start date Start date Oct 29, 2013

theconductor

15 Year Member
Aug 9, 2007
337
96
74
Roseville, CA
Oct 29, 2013
#1
  • Oct 29, 2013
  • #1
I've got a small leak in the drivers side valve cover. What is the torque spec on the bolts and the preferred order to tighten them? Any other tricks appreciated.
 

larrym1961

5 Year Member
Dec 18, 2010
570
36
49
Idaho Falls Id
Oct 29, 2013
#2
  • Oct 29, 2013
  • #2
If you don't have these, I would suggest a set of Ford Racing metal valve cover gaskets with the rubber seal around them. I have the Cobra polished aluminum valve covers and with the Ford Racing metal gaskets and torqued to 10 ft. lbs. I have no valve cover oil leaks.
 

7991LXnSHO

wanna catch the space herp
10 Year Member
Sep 1, 2010
7,387
2,745
194
Kearney, NE
Oct 29, 2013
#3
  • Oct 29, 2013
  • #3
On my Corvair, the trick was to use composition valve cover gaskets, and coat both sides with high temp RTV before putting it together. It was a bear to get apart but did not leak.
 

mikestang63

SN Certified Technician
Aug 27, 2012
11,606
8,859
214
In the garage
Oct 29, 2013
#4
  • Oct 29, 2013
  • #4
Get the blue Felpro rubber gaskets that have the metal backing and reinforced bolt holes. They go on dry and you just snug them up from the center out. Never had a leak with them.
 
Reactions: 7991LXnSHO

7991LXnSHO

wanna catch the space herp
10 Year Member
Sep 1, 2010
7,387
2,745
194
Kearney, NE
Oct 30, 2013
#5
  • Oct 30, 2013
  • #5
mikestang63 said:
Get the blue Felpro rubber gaskets that have the metal backing and reinforced bolt holes. They go on dry and you just snug them up from the center out. Never had a leak with them.
Click to expand...

Fel-Pro is usually makes the GOOD STUFF.

Make sure the valve cover flanges are flat and clean before you put them back on. Without metal inserts in the gaskets, the bolts can be cranked down too far and that bends dips in the valve cover flange that need taken out with a ball peen hammer and a hard wood backing block.
 

theconductor

15 Year Member
Aug 9, 2007
337
96
74
Roseville, CA
Oct 30, 2013
#6
  • Oct 30, 2013
  • #6
Most of the bolts were actually loose. I tightened them from the center out to just under 10 ft/lb. I think it's cured. I have only had a chance for a short drive.

If that doesn't work, I"ll look into the gaskets to make sure they have the metal inserts.

Thanks!
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,246
17,927
224
Massachusetts
Oct 30, 2013
#7
  • Oct 30, 2013
  • #7
+1 on the gaskets with the metal skeleton and O-ring as part of the structure. Totally reusable and no RTV needed.

I think they came on the 1993 Mustang and Fel-pro may make a set. Don't use the Cork gaskets
 

madspeed

Colonel Mustard
Founding Member
Nov 29, 1999
8,914
1,332
204
a van down by the river
Oct 31, 2013
#8
  • Oct 31, 2013
  • #8
mine leak too, but thats because some idiot over torqued a few bolts into the aluminum heads. Smedayi'll get around to helicoiling them
 
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