Author Topic: Exhaust Gaskets....how important?  (Read 497 times)

Offline Athame57

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Exhaust Gaskets....how important?
« on: January 14, 2019, 02:08:51 AM »
In the next few days I'll have (hope) finished what I'm doing and back on with the exhaust system. Last time I tried replacing the missing exhaust gaskets but hey got so chewed up in my atempts I did what someone else might have done before and gave up with them. Are they very important and is there an easy way to fit them?
I brake for animals!
1978 CB400F2 called Elen.

Offline Bryanj

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Re: Exhaust Gaskets....how important?
« Reply #1 on: January 14, 2019, 07:12:13 AM »
Yes they are important, stick them into the head recess with a few dabs of grease but make sure the old ones are out first as they turn very hard and feel like metal.

Offline Laverda Dave

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Re: Exhaust Gaskets....how important?
« Reply #2 on: January 14, 2019, 12:20:25 PM »
I had that problem Bryan. The P/O before had fitted new copper gaskets directly in front of the existing gaskets. The originals only identified themselves when I looked closely with a torch and good see a faint line that I thought was a casting mark. Turned out it was the joint between the old gasket and the head. I don't know how the P/O managed to fit the exhaust headers back on with two gaskets!
1976 Honda 400/4
1977 Rickman Honda CR750
1999 Honda VFR 800FX
1955 750 Dresda Triton
1978 Moto Morini 350 Sport
1978 Honda CB400/4 'Rat' bike
1982 Laverda 120 Jota

Offline Nurse Julie

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Re: Exhaust Gaskets....how important?
« Reply #3 on: January 14, 2019, 12:31:09 PM »
Mine had the originals and a set of copper ones fitted when i got the bike. I got the originals out in the end but wow, it took some work.
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Offline Athame57

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Re: Exhaust Gaskets....how important?
« Reply #4 on: January 14, 2019, 01:55:31 PM »
...now I'm not sure there really is an old pair blended/welded/merged down there. I shall seek with a dental pick or something....
I brake for animals!
1978 CB400F2 called Elen.

 

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