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Old Dec 10, 2025 | 08:21 AM
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dedwards0323
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Joined: Nov 2008
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From: Upstate SC
Default Re: My Breather Cover Leak Fix

Originally Posted by pizzaguy
I'd bet money this won't work, because you can't tighten those bolts enough (or CAN you?)
In any case, I am pinning this thread so it does not get 'lost' between now and spring. Let's see how this turns out.

OOPS, someone else already pinned it......
Originally Posted by DeKalb
That was a concern, I checked clearance without the O-ring cord and checked it with the O-ring cord ,both with no torque and with torque ... on both test the bolt lugs bottomed out (came together) as they would with RTV And the clearance around the edge of the cover was the same ... reaching the 7ft lb torque was no more difficult than with RTV ... and the small stainless steel bolts were no different as well ... the softness of the O-ring cord compressed easy and at this time seems to have given a good seal ... if this does not work I will replace the O-ring cord with RTV

My reason for trying this is I find at times my hands get a little shaky and it is hard for me to apply a good even bead of the RTV ... I am just looking for a different way that I am able to do ... and we don't know if someone doesn't try ... I'm the guinea pig ... I appreciate the comments and questions, I will keep the forum updated
If using the 1x use aluminum screws doesn't allow enough long-term holding force to seal with the O-ring (DeKalb's follow-up seems to indicate they do), then I would say that a marine grade screw (provides anti-corrosion for use with the magnesium alloy engine parts) would need to be used to enable a higher torque setting on the smaller screws to seal the O-ring. (Note: I would not anticipate any issues with the torque holding settings on the larger screws, which have a 2-fold requirement: holding force for both crankcase breather covers & valve covers.) I have these anti-corrosion screws installed on my 2007 Coupe when I repaired the crankcase breather cover seal leaks. These allow me to check the torque values on the breather assemblies, along with the torque holding force on the valve cover screws, & re-set the holding torque found during inspection, when required. And my breather covers haven't leaked since I did the repair back in 2010. It is worth noting that the Valve Cover Gaskets haven't leaked on my 2007 Coupe & my checking these screws for proper torque every couple of years I believe has been a positive factor in the overall assembly.





I am interested to see how DeKalb's repair holds up.
 

Last edited by dedwards0323; Dec 10, 2025 at 08:46 AM.
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