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Author Topic: manifold O-rings  (Read 1238 times)

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Offline Scott S

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manifold O-rings
« on: November 23, 2011, 01:46:35 PM »
 Are the intake manifold o-rings included in most engine gasket kits?

 I need some for my CB550 and don't want to order them if they're included in a full gasket kit.
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'71 CB500 K0
'17 Triumph Street Scrambler
'81 Yamaha XS650

Offline Cheffish

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Re: manifold O-rings
« Reply #1 on: November 23, 2011, 03:34:27 PM »
I got a vesrah kit and they were included
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Offline bwaller

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Re: manifold O-rings
« Reply #2 on: November 23, 2011, 03:55:17 PM »
They're the same size o-ring as the valve inspection caps so if there are only eight in the kit, re-use four on the caps.
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Offline Scott S

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Re: manifold O-rings
« Reply #3 on: November 23, 2011, 04:25:39 PM »
Quote from: bwaller on November 23, 2011, 03:55:17 PM
They're the same size o-ring as the valve inspection caps so if there are only eight in the kit, re-use four on the caps.

 Now that's good to know! I wasn't searching for that part #. The tappet cover o-rings I can find easily.
 Need to check my gasket kit and take an inventory of what's what. There are so many o-rings in there that I have NO idea where they go just yet!
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'71 CB500 K0
'17 Triumph Street Scrambler
'81 Yamaha XS650

Offline Scott S

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Re: manifold O-rings
« Reply #4 on: December 08, 2011, 06:45:12 PM »
 Well, they WERE included in my kit, but they're the smaller, tappet cover size o-rings and they don't fit my '78 CB550K manifolds.

 I need part # 91302-001-020, which is a 30.8mm O-ring. 
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'71 CB500 K0
'17 Triumph Street Scrambler
'81 Yamaha XS650

Offline bwaller

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Re: manifold O-rings
« Reply #5 on: December 08, 2011, 08:06:20 PM »
Both the tappet cover and the intake manifold o-rings are the same #91302-001-020.
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Offline Scott S

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Re: manifold O-rings
« Reply #6 on: December 09, 2011, 04:57:45 AM »
 Hmmmm....why do the sizes look so different? I guess my manifold o-rings are REALLY flattened andf compressed.
 Well, at least I don't have to order new ones!
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'71 CB500 K0
'17 Triumph Street Scrambler
'81 Yamaha XS650
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