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Copper Head Gaskets? #672576
10/27/16 3:03 pm
10/27/16 3:03 pm
Joined: Aug 2005
Posts: 4,970
Royal Berkshire.
K
Kev. Offline OP
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Kev.  Offline OP
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Joined: Aug 2005
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Royal Berkshire.
This is not specifically a competition question, but I guess you guys would have more of a clue, considering the pressures you put your motors under.

I am rebuilding the top end of my A65 lightning, and have/ will use a copper head gasket, I have it all annealed and ready to go, although I am being advised to use some copper coat sealant before assembly? Now I can't find copper coat here in the UK, but while searching the WWW, I found this snippet on "Access Norton" I use a copper head gasket on my 750 racer. I'd always had trouble with it leaking until someone told me to try ....silver paint! Yep, ordinary spray can silver. Spray a thin coat on the gasket, let it dry and bolt it all together. It never leaks now.

Will this work? there is also a suggestion of using one of the four bond sealants, Yamma bond, Kawa bond, etc.

So tell me your thoughts?


http://kevindean.zenfolio.com/

http://backstreetthunder.wordpress.com/


1952 Norton Special
1970 BSA A65 Lightning
1973 Moto Guzzi Eldorado
1981 Harley FLH
2006 BMW R1200GS




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Re: Copper Head Gaskets? [Re: Kev.] #672595
10/27/16 4:56 pm
10/27/16 4:56 pm
Joined: Aug 2015
Posts: 1,268
Bolton Lancs UK
A
Andy Higham Online content
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Andy Higham  Online Content
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A

Joined: Aug 2015
Posts: 1,268
Bolton Lancs UK
Yes silver paint works, assemble before it dries.
The other sealant you mention is THREE Bond, it is brilliant on metal to metal joints eg crankcase halves, it can be used very sparingly so a tube will seal hundreds of joints


BSA B31 500cc "Stargazer"
Greeves 200cc "Blue Meanie"
Greeves 350
Greeves 360 Challenger
Suzuki GSX1100 EFE "Sorcerers Apprentice"
GM500cc sprint/LSR bike "Deofol"
Jawa 500cc "Llareggub"
2003 Aprilia RSV Mille "Lo Stregone"
'35 OK Supreme
'36 OK Supreme
Re: Copper Head Gaskets? [Re: Kev.] #672603
10/27/16 5:37 pm
10/27/16 5:37 pm
Joined: Dec 2013
Posts: 4,436
ohio, usa
kevin roberts Offline

DOPE
kevin roberts  Offline

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Posts: 4,436
ohio, usa
i use this stuff, which is apparently available in britain?

http://www.eBay.co.uk/itm/Permatex-...alant-Gaskets-Seals-Makers-/231471126173

i haven't had any head gasket leakage with triumph copper head gaskets, but i don't push things, really, only 11.75 to 1.

pushrod tom would be the man to ask-- he's running an A65 with significant top end pressures.


"Are bikes so nice as all that?" asked the mole, shyly...

"Nice? They're the only thing," said the Water Rat Solemnly, as he leaned forward on the handlebars. "Believe me, my young friend, there is nothing -- absolutely nothing -- half so much worth doing as simply messing about with bikes."
Re: Copper Head Gaskets? [Re: Kev.] #672657
10/28/16 7:24 am
10/28/16 7:24 am
Joined: Sep 2008
Posts: 849
Edgewater, Md
B
Blown Income Offline

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Blown Income  Offline

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Joined: Sep 2008
Posts: 849
Edgewater, Md
I use the same stuff Kevin linked on all of my bikes, even the A65 racer with almost 14:1 compression. I am not sure I would use the threebond style products used for sealing cases on the HG.


1955 BSA Bantam D1 Plunger
1956 BSA A10RR Street and LSR Bike
1961 BSA C15S
1966 BSA spitfire
1969 Triumph T100C
1970 Triumph TR6R
1970 Triumph TR6C
1972 BSA Lightning LSR Bike
1974 Triumph T150V
Re: Copper Head Gaskets? [Re: Blown Income] #672662
10/28/16 8:36 am
10/28/16 8:36 am
Joined: Oct 2012
Posts: 4,017
Running from demons in WNY
Hillbilly bike Offline
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Hillbilly bike  Offline
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Running from demons in WNY
On liquid cooled engines with copper gaskets a sealer is used around the water and oil passage openings...Some builders coat the entire gasket with Hylomoar or Three Bond, it seems to be and individual choice.

I use the Copperhead spray but in the past I used about any type of spray paint...Dry gasket is probably fine if the mating surfaces are perfect.
For a reference,what did the manufacturer use, if anything, when these engine were new?


I ride dinosaurs that eat money
Re: Copper Head Gaskets? [Re: Kev.] #672663
10/28/16 8:41 am
10/28/16 8:41 am
Joined: Oct 2009
Posts: 496
new jersey usa
P
pushrod tom Offline
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new jersey usa
I've been using Gaskacinch. I think it's made by Edelbrock. Available thru major mc parts suppliers. The spray on copper coat is good too. PRT

Re: Copper Head Gaskets? [Re: Kev.] #672722
10/28/16 7:18 pm
10/28/16 7:18 pm
Joined: Apr 2007
Posts: 820
Brisbane, Australia
BrizzoBrit Offline

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BrizzoBrit  Offline

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Posts: 820
Brisbane, Australia
I use the Permatex shown above. Follow the instructions. Need to spray freshly before fitting.

Ray


BSA 1969 A65F
BSA 1966 A65H
Triumph 1968 T120
Kawasaki A1R
& too many projects!
Re: Copper Head Gaskets? [Re: BrizzoBrit] #672728
10/28/16 8:22 pm
10/28/16 8:22 pm
Joined: Sep 2004
Posts: 853
Farnham, Surrey, UK
gunner Online content
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gunner  Online Content
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Farnham, Surrey, UK
As youre in the UK, just pop down to your local Halfords branch and get some Loctite Ultra Copper Gasket Seal 5990, see This Link .

I've used this on my A65 and B44 head gaskets and also on the exhaust joints. Its good stuff, only a small smear is needed on the head gasket especially around the oil drain holes and pushrod tunnels.


1968 A65 Firebird
1967 B44 Shooting Star
1972 Norton Commando
Re: Copper Head Gaskets? [Re: Kev.] #672754
10/29/16 6:50 am
10/29/16 6:50 am
Joined: Aug 2001
Posts: 4,116
argyll. scotland, uk
gavin eisler Online content
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gavin eisler  Online Content
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argyll. scotland, uk
Thanks for the link gunner, didnt know about that stuff. O rings help to seal the front oil drains.
las t seal was good with Blue "Comma" sealer , lightly applied, now using "Coppercoat" , the paint idea is a good one, must try that next.


71 Devimead A65 750
56 Norbsa 68 Longstroke A65
Cagiva Raptor 650
MZ TS 250
The poster formerly known as Pod
Re: Copper Head Gaskets? [Re: gunner] #672903
10/30/16 5:06 pm
10/30/16 5:06 pm
Joined: Aug 2005
Posts: 4,970
Royal Berkshire.
K
Kev. Offline OP
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Kev.  Offline OP
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Joined: Aug 2005
Posts: 4,970
Royal Berkshire.
Originally Posted by gunner
As youre in the UK, just pop down to your local Halfords branch and get some Loctite Ultra Copper Gasket Seal 5990, see This Link .

I've used this on my A65 and B44 head gaskets and also on the exhaust joints. Its good stuff, only a small smear is needed on the head gasket especially around the oil drain holes and pushrod tunnels.


Thanks. :bigt


http://kevindean.zenfolio.com/

http://backstreetthunder.wordpress.com/


1952 Norton Special
1970 BSA A65 Lightning
1973 Moto Guzzi Eldorado
1981 Harley FLH
2006 BMW R1200GS




Re: Copper Head Gaskets? [Re: Kev.] #672960
10/31/16 8:32 am
10/31/16 8:32 am
Joined: Aug 2005
Posts: 4,970
Royal Berkshire.
K
Kev. Offline OP
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Kev.  Offline OP
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K

Joined: Aug 2005
Posts: 4,970
Royal Berkshire.
I picked some lactate up today and some o-rings, so all set now, thanks again.


http://kevindean.zenfolio.com/

http://backstreetthunder.wordpress.com/


1952 Norton Special
1970 BSA A65 Lightning
1973 Moto Guzzi Eldorado
1981 Harley FLH
2006 BMW R1200GS




Re: Copper Head Gaskets? [Re: Kev.] #672964
10/31/16 9:36 am
10/31/16 9:36 am
Joined: Aug 2001
Posts: 4,116
argyll. scotland, uk
gavin eisler Online content
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gavin eisler  Online Content
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Posts: 4,116
argyll. scotland, uk
mmm Creamy lactate. Sounds tasty.


71 Devimead A65 750
56 Norbsa 68 Longstroke A65
Cagiva Raptor 650
MZ TS 250
The poster formerly known as Pod
Re: Copper Head Gaskets? [Re: gavin eisler] #672976
10/31/16 10:57 am
10/31/16 10:57 am
Joined: Aug 2005
Posts: 4,970
Royal Berkshire.
K
Kev. Offline OP
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Kev.  Offline OP
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K

Joined: Aug 2005
Posts: 4,970
Royal Berkshire.
Originally Posted by gavin eisler
mmm Creamy lactate. Sounds tasty.


auto spell rubbish, it should say Loctite laughing


http://kevindean.zenfolio.com/

http://backstreetthunder.wordpress.com/


1952 Norton Special
1970 BSA A65 Lightning
1973 Moto Guzzi Eldorado
1981 Harley FLH
2006 BMW R1200GS




Re: Copper Head Gaskets? [Re: Kev.] #672996
10/31/16 2:46 pm
10/31/16 2:46 pm
Joined: May 2013
Posts: 5,005
Rotherham - S. Yorkshire
Allan Gill Online happy

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Allan Gill  Online Happy

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Joined: May 2013
Posts: 5,005
Rotherham - S. Yorkshire
I have used paint, o rings, well seal, copper coat, and various head gasket sealants and the only thing which has worked first time is using a quality NOS head gasket, mines fitted with nothing as a sealant. Just the annealed gasket on two clean flat surfaces. Notibly on the A65's the oil drain holes are much smaller on the original gasket than on the pattern ones.

But unless your barrel is flat and the head is flat, your pissing in the wind.


beerchug
Re: Copper Head Gaskets? [Re: Allan Gill] #673344
11/03/16 10:47 pm
11/03/16 10:47 pm
Joined: Nov 2005
Posts: 765
Riverside, CA.
N
noisy norton Offline
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Joined: Nov 2005
Posts: 765
Riverside, CA.
Originally Posted by Allan Gill


But unless your barrel is flat and the head is flat, your pissing in the wind.



Bingo!!


God rides a Triumph but wishes it was a Norton.
Re: Copper Head Gaskets? [Re: Kev.] #673362
11/04/16 6:41 am
11/04/16 6:41 am
Joined: Dec 2013
Posts: 4,436
ohio, usa
kevin roberts Offline

DOPE
kevin roberts  Offline

DOPE

Joined: Dec 2013
Posts: 4,436
ohio, usa
i once lived in a coastal valley in california tbat was so windy tbat if you did piss outside the wind would whip it away into the sky without it ever hitting the ground.

was this too much information?

it would roll a 7000 pound truck across the gravel if you left both doors open.


"Are bikes so nice as all that?" asked the mole, shyly...

"Nice? They're the only thing," said the Water Rat Solemnly, as he leaned forward on the handlebars. "Believe me, my young friend, there is nothing -- absolutely nothing -- half so much worth doing as simply messing about with bikes."
Re: Copper Head Gaskets? [Re: kevin roberts] #673377
11/04/16 8:39 am
11/04/16 8:39 am
Joined: Oct 2012
Posts: 4,017
Running from demons in WNY
Hillbilly bike Offline
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Hillbilly bike  Offline
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Joined: Oct 2012
Posts: 4,017
Running from demons in WNY
Or shoveling feces against the tide....Ducati air cooled engine don't have head gaskets.. Dan from Franz&Grubb has built a Triumph with no head gasket...


I ride dinosaurs that eat money
Re: Copper Head Gaskets? [Re: Kev.] #673392
11/04/16 11:02 am
11/04/16 11:02 am
Joined: Aug 2015
Posts: 1,268
Bolton Lancs UK
A
Andy Higham Online content
BritBike Forum member
Andy Higham  Online Content
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A

Joined: Aug 2015
Posts: 1,268
Bolton Lancs UK
On my Greeves I tried both copper and aluminium head gaskets, with and without sealant. It spat them out in disgust! I then re machined the head and used just sealant, it nearly sealed, but I was getting a dribble of oil from the head joint. After looking inside an Aprilia RS125 I copied the head sealing arrangement, no sealant, no gasket just a groove in the head with an "O" ring in it. No leaks no dribbles of oil and I can remove and replace the head without changing the ring


BSA B31 500cc "Stargazer"
Greeves 200cc "Blue Meanie"
Greeves 350
Greeves 360 Challenger
Suzuki GSX1100 EFE "Sorcerers Apprentice"
GM500cc sprint/LSR bike "Deofol"
Jawa 500cc "Llareggub"
2003 Aprilia RSV Mille "Lo Stregone"
'35 OK Supreme
'36 OK Supreme

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