Author Topic: Head gasket  (Read 143 times)

Offline shifter

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Head gasket
« on: May 21, 2024, 07:10:48 PM »
Can someone  enlighten me if you have to anneal a copper head gasket  before refitting on a S90,   I have done previously  on a BSA 650 A10, not sure these days...
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 Moto morini 250 2c
Cb200
S90

Offline Bryanj

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Re: Head gasket
« Reply #1 on: May 21, 2024, 07:22:22 PM »
Yes but dont remember the small hondas having copper gaskets

Offline taysidedragon

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Re: Head gasket
« Reply #2 on: May 21, 2024, 07:24:08 PM »
Pure copper gasket, yes. Annealing it softens it so seals better when head bolted down.
Gareth

1977 CB400F
1965 T100SS

Offline shifter

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Re: Head gasket
« Reply #3 on: May 21, 2024, 07:27:50 PM »
Yes Bryan there is a  very thin copper gasket not like the old brit bikes , it's so thin I'm wondering if it's soft enough not to anneal
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 Moto morini 250 2c
Cb200
S90

Offline Bryanj

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Re: Head gasket
« Reply #4 on: May 21, 2024, 07:40:08 PM »
No always anneal, just be carefull not to melt it!

Offline shifter

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Re: Head gasket
« Reply #5 on: May 21, 2024, 08:29:59 PM »
Yes Bryan thoughts are the same as its  thin as tin foil, having  to wait for a replacement from the states as DS supplied one damaged from same place, will have sleep on it eh ...thanks for your input ..
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 Moto morini 250 2c
Cb200
S90

Offline Bryanj

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Re: Head gasket
« Reply #6 on: May 21, 2024, 08:58:44 PM »
Instead of using a torch put it on the hob when the boss isnt looking

Offline shifter

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Re: Head gasket
« Reply #7 on: May 21, 2024, 09:08:30 PM »
 Ha ha Bribery  comes to mind , as that went down like lead balloon, I'll have try harder, it's food for thought Bryan thankyou for the Tip ..
" RIDDEN NOT HIDDEN"

 Moto morini 250 2c
Cb200
S90

 

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