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To Gasket or Not To Gasket...

  • Thread starter Thread starter Flaggo60
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Flaggo60

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I was watching a "How things are made" piece on the Discovery Channel and they were showing the assembly of Harley V-Twins at the factory. I was surprised that they mate the engine cases without a gasket, just some silicone-looking goop. Is this standard operating procedure in the industry now? Are the gasket-in-a-tube products so good now that gaskets aren't needed? My casing covers are coming off for polishing this year-need to know which way to go. Suggestions are more than welcome. :)
 
Manual says 'Suzuki Bond' for the cases. You can get non-drying gasket maker at any car parts store.
 
personally i use the black /or 1103 .depending on whats at hand.. ..preferr the black silcone.
i stooped using gasskets. about 7 years ago..when a mechnic friend .told me its not nessarry..
i agree with him now..

why cheep ,easy to remove,easy to deal with, and no worries of wasted money.. ill never go back .. except on big gaskets on the truck .. the thick ones.. (lowpressure.. )
 
so many engines now use little more than "liquid" gaskets on everything but the head gasket. if you use the right stuff there is little need for a gasket.
my 1000G when it was parked in the garage the only thing not leaking on it was the clutch cover, and the clutch cover is the one thing that doesn't have a gasket. I used permatex ultra grey on it.
 
Just my opinion, if it was designed with a gasket, use a gasket. If not designed with a gasket, as the engine cases, don't use a gasket
 
rphillips said:
Just my opinion, if it was designed with a gasket, use a gasket. If not designed with a gasket, as the engine cases, don't use a gasket
Click to expand...

true! the thickness of the gaskets can cause clearance problems when not using them. IE starter idler gear.
 
All the gasket surfaces have specific needs, so do what the manual says and don't try to second guess. The case halves form a precise, continuous seal that holds moderate pressure inside, so Yamabond sealant was formulated for that. Side covers, such as clutch and stator cover, cut across the case-mating line, so paper gaskets are needed to fill that gap. Base gaskets are thin for moderate pressure retention and to keep the cylinders true. Head gaskets are very strong to retain the combustion pressures. Valve cover gaskets need to fill in gaps at the half moon junction. If you study the joint, you will see that the stock gasket is the solution.
 
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I just did my jeep and wifes caravan tranny fluids because both of them were leaking because I did the goop...they both have gaskets and don't leak. I like Gaskets.
 
Thanks Paco. Not that most people haven't tried it :rolleyes:. I still have nightmares of a squiggly orange RTV creature coming out of the motor .......
 
Don-lo said:
I still have nightmares of a squiggly orange RTV creature coming out of the motor .......
Click to expand...

Like this?

Silicon001.jpg
 
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