Why or why not?

 

OEM or Cometic gasket? OEM yes, Cometic no

 

Here you go, from FI section.

 

noob question but whats the purpose of the copper spray?

 

I have built countless honda engines over the years and have never used copper spray... Never had any issues n2o, boost or n/a.

^ The copper is supposed to fill in any imperfections in the head and deck surface giving a better seal. But this is what the outer layer of the headgasket is for.

 

does honda use copper spray from the factory? nope. Why would you need it?

 

I used it with an oem itr rebuild with no issues - on recommendation from a friend.

This time I'm wondering if it's really necessary.

I'm going to look in the helm manual, but iirc there's no mention there of any need for it.

I was just wondering what you guys have done.

 

i've never used any copper spray and have done over 7 oem head gaskets no problems.

 

I have never used copper spray.

 

Copper spray is a band aid that should never be used. If the head or deck is damaged to require the use of this crap then get it surfaced and do things correctly. Im so tired of people pushing the use of copper spray.

 

Blew a head gasket with oem gasket and it had been sprayed, replaed with oem without spray and it's going strong 5 years later.

Bottom line: DONT USE COPPER SPRAY!

 

I've rebuilt 3 ITR engines... Not a single one have I used the copper spray and none have any head gasket type related issue to this day...

 

copper spray

 

I don't see the benefit of copper gasket. If the mating surfaces are cleaned properly and one is using a new headgasket from a quality manufacturer, there is no need.

 

lot of folks don't deck the block and only do the head. spray can help prevent seepage if you have scratched surfaces.

as others have stated if you just do it right there is no need

 

I use it because it makes everything look shiny like gold..

 

No

 

My buddy and I have used it on his gsr n/a build, his Ls-vtec build, and my slow D series build. Used it on the head gaskets, exhaust manifold gaskets, and intake manifold gaskets. Only reason why I use it is just because of how tacky it gets after spraying it on the gasket. To me, it makes for a "better safe than sorry" seal between the two surfaces.

 

Ive used copper spray and not. makes no difference on sealing ability.

 

No for any type of HG. If the block and head have the proper surface, an untouched new gasket will seal just fine.

 

I have used it on every motor I have built regardless of decking/milling or not.

I have never had an issue related to a HG, ever.

Good article here on it: http://www.motoiq.com/magazine_artic...-and-more.aspx


Blowing a HG had nothing to do with copper gasket spray, more likely incorrect installation. Speak facts, not BS..