i had the machine shop check my blocks deck for flatness while it was getting bored, they said its fine, but i noticed a few scratches on the deck/cyl that look like something was lightly drug across the deck at some point in its life. i used a roloc disk on the entire deck and you can barely catch your nail on the scratches but i wondered if the OEM head gasket alone will be enough to conform or fill in any small scratches , does any one know if copper spray or indian head would help even more then using the gasket alone? or must teh OEM gaskets be installed dry? thanks guys

 

you used a roloc disk on the deck? WTF?

 

A light coating of copper spray is fine, and will help ensure a complete seal.

And out of curiosity, what kind of Roloc did you use?

 

yeah i always use a light roloc disk to clean the surface. i dont grind into it or gouge it lol just clean off any surface debris.

so its ok to spray both sides of the gasket ? or should i just spray the deck side ? thanks guys oh and like i stated above i always use teh brown 3m disk and just go over it real light to clean off any surface debris.

 

I wouldnt use copper spray on a MLS gasket. The main thing is that your surfaces are flat and smooth because MLS gaskets are pretty picky about that.

 

so confusing

 

We have used copper gasket spray on a bunch of oem mls gaskets, never a problem.

 

I have used copper spray and have not had any issues. I wipe the surfaces with acetone first.

 

Forgive my ignorance, but what is "indian head"?

 

It's a brand of gasket sealant

 

I just use prep solv and nothing else make sure its clean and just torque the head down. Nothing inbetween. Imagine this 1 thou can screw up the seal on the head gasket imagine how good you are at spraying a coat of copper seal!

 

Oh yeah, I remember seeing that stuff one time.

 

I'd spend a few bucks for a cleanup on the surface and call it a day. Roloc is not for cleaning block and head surfaces.

 

A roloc disk on an aluminum gasket mating surface is a huge no no.

 

x2!

 

i went and got the copper spray today, thanks for all the input

 

i already had it to the machine shop to get checked and bored they said the deck was fine and didnt need touched, however i see a few small scratches now that its back home. so to be extra safe i figured some copper spray would assure they get filled. just wasnt sure if the OEM style HG was ok to spray. i know composite head gaskets are much better at filling it scratches.

 

I use copper spray for every head gasket i use...iv never had a problem turbo, or na!

 

how much of a coat do you guys do? enough that you can only see copper and no black? 1 or 2 coats ect?

 

ive used light roloc discs on heads and blocks never had problems. some people think its stupid but they prob color cordinate their panties too.

 

When you said roloc disc my mind went to the 36grit disc I use to prep steel for welding.

I think a lot of us thought the same.

 

We use these to clean up aluminum surfaces( the green one )



We also use copper spray and never had an issue, I talk to Earl before and he said it was just reinsurance.

 

i use copper spray on turbo gaskets and exhaust manifold gaskets sometimes. i have noticed no difference using it on a head gaskets other than it takes a lot longer to clean everything the next time you pull the head off

 

haha no not that

 

well my main concern is a few scratches i see. had i seen non i would just stuck it on dry like i have always done. but i was told copper is great for filling in small scratches.