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Author Topic: Is gasket sealer required on cylinder block ?  (Read 361 times)

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Offline nbcam

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Is gasket sealer required on cylinder block ?
« on: April 06, 2020, 06:56:10 PM »
Just got my cb550 head and cylinder block back from the machine shop. It appears the guy that had the bike before me went a little crazy with the dermel !!

The bottom surface of cylinder block has some small grinding marks from the dermel, the machine shop recommend for me to put a small amount of gasket sealer on the surface when reassembling

Looking for advice, would you recommend sealer or do you think a new gasket will be enough to stop oil leaking because of bad surface







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Offline disco

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Re: Is gasket sealer required on cylinder block ?
« Reply #1 on: April 06, 2020, 11:17:26 PM »
No sealant. Gasket only.
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Offline Jerry Rxman Griffin aka MuthaF'er

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Re: Is gasket sealer required on cylinder block ?
« Reply #2 on: April 07, 2020, 10:23:36 AM »
No sealer. Gaskets go on dry. The dermel marks are on the opposite side as the oil anyway.
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As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline nbcam

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Re: Is gasket sealer required on cylinder block ?
« Reply #3 on: April 07, 2020, 11:35:20 AM »
Thanks for the response, just wanted some feedback before I start to put this all back together


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