Spray Coppercoat Gasket Sealer?

worntorn · Nov 24, 2021

Fast Eddie said:
My comment was about the application, or not, of gasket goo to head gaskets…

My comment wasn't aimed at you, in fact it wasn't aimed at all, just general venting of the " you can lead the horse to water" variety

ozcruiser · Nov 26, 2021

worntorn said:
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

worntorn · Nov 26, 2021

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

Hortons Norton · Nov 27, 2021

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.

ozcruiser · Nov 27, 2021

Thank you will give the Cometic Australia a call Monday about those part numbers.

worntorn · Nov 27, 2021

The Cometic number for the intake to head gasket is CB335SP2032AFM

ozcruiser · Nov 27, 2021

Thanks guys

worntorn · Nov 29, 2021

Does anyone have Cometic numbers for the AMC trans. gaskets?

Thanks
Glen

ozcruiser · Nov 29, 2021

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.

Hortons Norton · Nov 29, 2021

ozcruiser said:
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

worntorn · Nov 29, 2021

The H stands for High Roller.

Glen

ozcruiser · Nov 29, 2021

I would be happy to pay 17.38 for the head gasket where can I buy them from.

Hortons Norton · Nov 30, 2021

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.

ozcruiser · Nov 30, 2021

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

worntorn · Nov 30, 2021

Shipping has just gone crazy.
I guess we blame the Pandemic.

Glen

ashman · Nov 30, 2021

worntorn said:
Shipping has just gone crazy.
I guess we blame the Pandemic.

Glen

Maybe they just saying that to milk us for more $$$.

Ashley

BERT · Nov 30, 2021

ozcruiser said:
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

worntorn · Apr 22, 2022

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

concours · Apr 22, 2022

worntorn said:
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.