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Author Topic: Can anyone tell me what 'O' rings go here  (Read 881 times)

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rhos1355

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Can anyone tell me what 'O' rings go here
« on: October 17, 2009, 09:40:53 AM »
Hi folks, I can't seem to identify the 'O' rings that go in these recesses, to tell you the honest truth I'm not even sure there should be any. If you can tell me the part no. that would be an added bonus.
The bike is a  CB750 K2 of '72

Many thanks



« Last Edit: October 17, 2009, 09:43:47 AM by rhos1355 »
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Offline mystic_1

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  • 1970 CB750K
Re: Can anyone tell me what 'O' rings go here
« Reply #1 on: October 17, 2009, 10:05:41 AM »
YES!  THERE MUST BE O-RINGS THERE!!!

Sorry for shouting, but if you leave those o-rings out you'll have:

1. oil leaking out your head gasket
2. poor top end oiling
3. a trashed cam and cam towers
4. much sadness with the rending of the clothes and the gnashing of the teeth and the pulling of the hair....


I'll see if I can look up the part number and/or size for you.

mystic_1
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"A ship in harbor is safe, but that is not what ships are built for."
- John Augustus Shedd

My build thread:  http://forums.sohc4.net/index.php?topic=68952.0

Offline mystic_1

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  • 1970 CB750K
Re: Can anyone tell me what 'O' rings go here
« Reply #2 on: October 17, 2009, 10:09:41 AM »
OK, #17:



91317-300-003
O-RING (3.7 X 1.7)


mystic_1
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"A ship in harbor is safe, but that is not what ships are built for."
- John Augustus Shedd

My build thread:  http://forums.sohc4.net/index.php?topic=68952.0

rhos1355

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Re: Can anyone tell me what 'O' rings go here
« Reply #3 on: October 17, 2009, 10:30:48 AM »
cheers mate.
SOHC-4 strikes again!!
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