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Old 03-21-2011, 11:25 AM
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EricSilver EricSilver is offline
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Join Date: Mar 2000
Location: Fairfax, VA
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After my remark about doing this job externally I have been giving it a lot of thought. I would appreciate any good feedback on what I am suggesting below.

Injecting sealant into the leaking timing cover/head gap from outside, and below the timing cover would accomplish precisely the same thing as dismantling the engine to put a dab of sealant on the end of the U-Seal.

I would need a syringe and large-enough metal needle for precision, and to make sure I could get as deep into the gap as possible. A food seasoning/marinating syringe from any housewares store should facilitate that. Squeeze sealant (Permatex Copper or whatever suits you) into the syringe, attach the plunger and you are set.

What I envision is removing the valve cover and inserting the needle through the gap from below/outside until I see the tip emerge near the U-Seal (or feel it bump up against the soft U-Seal). Then pump the syringe and slowly back it out as the sealant fills the gap.

As long as the bonding surfaces are clean and grease-free the sealant will stick. (I have pieces of metal that Permatex Copper absolutely refuses to let go of.)

I think this is a much more sensible way to do this repair.
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