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deuce_roadster · 07-11-2020, 09:30 AM

I am with Kube. I tried the grease only 1 time on a water pump and it leaked. Went back to Copper Coat spray and over the many years have never had it fail. I rarely have to remove anything I have installed and am willing to take the time if I have to. If you leave the end of your shop vac hose near where you are removing the old gasket there is little if any mess to clean up. The only place I don't use the spray is on the gasket between the distributor and the timing cover as the paper is enough and I have never had one leak or the exhaust gaskets.
I would think that since grease is usually 90 wt oil with some kind of "filler" to make it thick (that is why oil runs out of your grease gun after sitting) when used on an engine that gets hot, the oil would over time go away or run out, and there would still be a residue to clean up if you removed the part. My experience with a water pump gasket was not good, don't like redoing anything and it hasn't leaked since.
I hang gaskets by a wire, spray both sides, let them dry then use them.

07-11-2020, 09:30 AM	#12
deuce_roadster Senior Member Join Date: Oct 2011 Location: Shelton, WA Posts: 3,800	Re: Copper coat gasket spray. I am with Kube. I tried the grease only 1 time on a water pump and it leaked. Went back to Copper Coat spray and over the many years have never had it fail. I rarely have to remove anything I have installed and am willing to take the time if I have to. If you leave the end of your shop vac hose near where you are removing the old gasket there is little if any mess to clean up. The only place I don't use the spray is on the gasket between the distributor and the timing cover as the paper is enough and I have never had one leak or the exhaust gaskets. I would think that since grease is usually 90 wt oil with some kind of "filler" to make it thick (that is why oil runs out of your grease gun after sitting) when used on an engine that gets hot, the oil would over time go away or run out, and there would still be a residue to clean up if you removed the part. My experience with a water pump gasket was not good, don't like redoing anything and it hasn't leaked since. I hang gaskets by a wire, spray both sides, let them dry then use them.