M_Dragan Posted May 2, 2018 Share Posted May 2, 2018 I got a scrape on my freshly decked block. Will this seal? Quote Link to comment Share on other sites More sharing options...
grannyknot Posted May 2, 2018 Share Posted May 2, 2018 That doesn't look deep at all, looks like a scuff, if it worries you you could just give that section a very thin smear of high temp sealant. Quote Link to comment Share on other sites More sharing options...
M_Dragan Posted May 2, 2018 Author Share Posted May 2, 2018 Would you have any recommendations of which sealant to use? maybe permatex? Quote Link to comment Share on other sites More sharing options...
M_Dragan Posted May 3, 2018 Author Share Posted May 3, 2018 Maybe copper headgasket spray? Quote Link to comment Share on other sites More sharing options...
NewZed Posted May 3, 2018 Share Posted May 3, 2018 You might be overthinking it. The headgasket has a soft surface designed to press in to slight imperfections. Your imperfection is less than slight. Quote Link to comment Share on other sites More sharing options...
M_Dragan Posted May 3, 2018 Author Share Posted May 3, 2018 2 hours ago, NewZed said: You might be overthinking it. The headgasket has a soft surface designed to press in to slight imperfections. Your imperfection is less than slight. Even for an MLS head gasket? Quote Link to comment Share on other sites More sharing options...
NewZed Posted May 4, 2018 Share Posted May 4, 2018 http://www.cometic.com/p-35444-automotive.html Quote Link to comment Share on other sites More sharing options...
seattlejester Posted May 9, 2018 Share Posted May 9, 2018 If I'm looking at that correctly that is on the outer edge of the block? The big hole is for venting the block and letting the oil pass through the head so it isn't really under pressure. Cometic gaskets are coated in a thin layer of rubber. I believe copper gasket spray uses acetone which can lift and shift the layer so they told me not to use any. People still do and swear by it, but that is against their recommendation. If it is deep enough to cause you worry, granny knot's recommendation is probably a better option, but it would have to be the thinnest of smear and that would probably be overkill as newzed points out. Quote Link to comment Share on other sites More sharing options...
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