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Author Topic: Point Cover Gasket  (Read 1539 times)

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Offline Accolay

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Point Cover Gasket
« on: August 16, 2008, 10:00:49 PM »
Trying to find out if I've got the correct gasket behind the points cover. On this here '77 CB550F, should it be an O-ring type or is it made out of that other papery gasket material?  #11 in the picture.

Thanks :)

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1977 CB550F

Offline rhinoracer

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Re: Point Cover Gasket
« Reply #1 on: August 16, 2008, 10:14:28 PM »
If it's anything like the 750 points cover gasket it is not an Oring and it's not a paper gasket either.

It's a thick rubber gasket similar to an O-ring but rectangular in section about 1.5mm x 3.5mm from my mind.
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Offline bradweingartner

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Re: Point Cover Gasket
« Reply #2 on: August 17, 2008, 02:06:31 AM »
I think mine was cork?

I've since replaced my side cover with an aluminum CB650 cover and boy what a nice fit, no gasket at all since it's such close tolerance. That chrome burger-king ashtray looking 550 cover sucks.
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Offline TwoTired

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Re: Point Cover Gasket
« Reply #3 on: August 17, 2008, 05:57:48 AM »
The stock gaskets were square cut cork.  One time use only.  Even so, they frequently leak.
I made my own out of hardware store sheet neoprene.  These are resilient so they can be reused.

Cheers,
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Offline Spikeybike

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Re: Point Cover Gasket
« Reply #4 on: August 17, 2008, 07:22:09 AM »
Quote from: TwoTired on August 17, 2008, 05:57:48 AM
The stock gaskets were square cut cork.  One time use only.  Even so, they frequently leak.
I made my own out of hardware store sheet neoprene.  These are resilient so they can be reused.

Cheers,

i did the same thing , very effective
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Offline Tower

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Re: Point Cover Gasket
« Reply #5 on: August 17, 2008, 09:32:30 AM »
If you don't want to bother with cork or having to cut your own gaskets, draw a small bead of silicone all around the inside of the cover and with a wet finger smooth slightly, wait until its almost set, them attach the cover.  The seal is absolutely perfect and lasts indefinately.  (So far, through 6 maintenance cycles.)
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Offline Accolay

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Re: Point Cover Gasket
« Reply #6 on: August 17, 2008, 09:42:17 AM »
You mean the calk-type silicone sealer? You think silicone grease would do the same trick?
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1977 CB550F

Offline Canada

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Re: Point Cover Gasket
« Reply #7 on: August 17, 2008, 06:05:10 PM »
What does this gasket do? I don't have one but I didn't even think I needed one. Is it to keep dirt and dust out?
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Offline Johnie

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Re: Point Cover Gasket
« Reply #8 on: August 17, 2008, 06:08:57 PM »
Correct-toe-mundo...the gasket is to keep dust, dirt and water out of there.  My OEM is cork.
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1973 CB750K3 - Candy Bacchus Olive or Sunflake Orange
1970 Chevy Chevelle SS396 - Cortez Silver
1976 GL1000 Sulphur Yellow

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Offline BobbyR

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Re: Point Cover Gasket
« Reply #9 on: August 17, 2008, 06:23:07 PM »
Quote from: Accolay on August 17, 2008, 09:42:17 AM
You mean the calk-type silicone sealer? You think silicone grease would do the same trick?
You would want one that is not paintable. They are used as sealants and have a very strong vinegar smell. The idea is that when you screw down the cover the silicone rubber presses against both surfaces. If you decide to use it, DO NOT PUT THE COVER ON UNTIL IT IS DRY. Otherwise you will glue the cover to the case.     
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Offline 333

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Re: Point Cover Gasket
« Reply #10 on: August 17, 2008, 06:53:12 PM »
If you use the cork, don't soak it in anything.  We wouldn't want to have to call you a cork soaker.
It had to be said!

Seriously, I like the bead of silicone idea.  I would suggest leaving about an inch open at the bottom though.
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Offline Johnie

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Re: Point Cover Gasket
« Reply #11 on: August 17, 2008, 07:14:38 PM »
Actually, my side cover was dented and scratched on my KO.  So I was able to get the OEM and it came with the cork gasket already tacked in place.
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1970 CB750K0 - Candy Ruby Red
1973 CB750K3 - Candy Bacchus Olive or Sunflake Orange
1970 Chevy Chevelle SS396 - Cortez Silver
1976 GL1000 Sulphur Yellow

Oshkosh, WI  USA

Offline Donzon

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Re: Point Cover Gasket
« Reply #12 on: August 18, 2008, 09:15:06 PM »
I use silicone caulking too.  Just put a nice small bead on the inside of the cover and smear grease or oil on the engine face.  That way the caulking only sticks to one surface.  Screw it back together and wait till it dries.

Perfect seal!

Don
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