Spray Coppercoat Gasket Sealer?

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Baz, I just talked with Cometic, will pm you the part number for the BSA rocker gasket.
Still working on the Norton items to sort out what shapes they already have and what is still needed.

Glen

If they have 750 MLS head gaskets I will need one I just found out me engine is combat spec please let us know what you find out.
Cheers
 
Will do.
Seems they have made some Norton gaskets, but don't have a category for Norton.
I did manage to get a MK3 primary gasket in Nitrile from them.
Also, they have the carb adapter gaskets, but they have them listed as Vincent carb adapter gaskets.

Glen
 
Cometic have head, base and rocker gaskets, Head (H2369043F) Base (B0954SP2020RC) intake rocker (VC334032AFM) Exhaust (VC333032AFM) and I think they also make timing cover as well. Also I am pretty sure they will do them in different thickness material. These are for the Commando 750.
 
The Cometic rep in Australia told me the head gasket with the H prefix means someone paid good dollars to have these head gaskets made so would need to contact US Cometic to see if there available to the public or only through the guy who paid for that custom gasket ? Postage and making could be 10 to 12 weeks covid shipping downunder. The jsmotorsport copper is looking like a better option at this stage.
 
The Cometic rep in Australia told me the head gasket with the H prefix means someone paid good dollars to have these head gaskets made so would need to contact US Cometic to see if there available to the public or only through the guy who paid for that custom gasket ? Postage and making could be 10 to 12 weeks covid shipping downunder. The jsmotorsport copper is looking like a better option at this stage.
Well if $17.38 is expensive OK? And that was for 1
 
I would say call them at (440) 354-0777 That's what I did and talked to Andrew about them, he had them shipped to me in a week. I think they are made to order and not in stock, Chuck.
 
Chuck I just gave them a call $18.90 for the .040 head gasket but its US $220 ( $310 AU ) Courier shipping with 4 week processing time. I'm looking into other option with shipping to Australia.
Thank you
Brian
 
Chuck I just gave them a call $18.90 for the .040 head gasket but its US $220 ( $310 AU ) Courier shipping with 4 week processing time. I'm looking into other option with shipping to Australia.
Thank you
Brian
A head gasket could almost fit in a Christmas card to save from getting fleeced on postage cost
 
Just to add some info, a friend decided to tear his new-to-him Vincent engine down as it seemed to have many issues, lack of power, oil burning, oil leaking.
It was supposedly built by someone with a good reputation, however many disasters in the waiting were found.
The engine crankcases and timing case had been sealed with grey Yamabond silicone sealer.
He found great long free strings of grey Yamabond inside the cases. This was from sealant squeeze out that had come loose over time.
Yamaha must have a method of applying exactly the correct amount so that squeeze out does not occur.
For the rest of us, a bit of squeeze out does happen, or you are unsure that adequate sealer has been used.
He was lucky in that none of the floating silicone appears to have plugged any oil passages, which is rather amazing given the amount of crap in there.
The anaerobic type 518 will be used on re assembly.

Glen
 
Just to add some info, a friend decided to tear his new-to-him Vincent engine down as it seemed to have many issues, lack of power, oil burning, oil leaking.
It was supposedly built by someone with a good reputation, however many disasters in the waiting were found.
The engine crankcases and timing case had been sealed with grey Yamabond silicone sealer.
He found great long free strings of grey Yamabond inside the cases. This was from sealant squeeze out that had come loose over time.
Yamaha must have a method of applying exactly the correct amount so that squeeze out does not occur.
For the rest of us, a bit of squeeze out does happen, or you are unsure that adequate sealer has been used.
He was lucky in that none of the floating silicone appears to have plugged any oil passages, which is rather amazing given the amount of crap in there.
The anaerobic type 518 will be used on re assembly.

Glen
The Yamabond #4 (Threebond) sealer is designed to stay in place, even the small amount squeezed out, stays adhered to the part line. I've used it for decades, never seen it create "snot strings" like RTV does. I've disassembled dozens of engines sealed with this stuff. Certainly ANYTHING can be used wrong.
 
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