Gaskets Or Silicone? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 5 (permalink) Old 06-05-2014, 11:22 PM Thread Starter
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Gaskets Or Silicone?

I know there have been a number of threads on different gaskets but I am putting a list out here to get an overall opinion.
It seems to me that a lot of the gaskets can be replaced with oil resistant RTV silicone. As the newer stuff is better than what they had years ago.
Must replace, Head gaskets
Should replace, cylinder base gaskets
Change to RTV all cover gaskets,
The case itself looks to be sealed with just RTV.
Any Comments?
Ken In Fl.
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post #2 of 5 (permalink) Old 06-06-2014, 12:11 AM
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I usually use OEM paper/wax gaskets for just about everything. I did use Permatex's The Right Stuff for my stator cover, since the mod plate didn't allow the cover to seat fully.

I'm sure others will have good experiences just using silicone, but to me the fact that it squeezes excess outside of the engine means there must be excess sealer on the inside as well.

1986 Kawasaki Vulcan 750
NGK Iridium Plugs #7803/DPR7EIX-9
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Coastered & Shaved
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1990 Kawasaki Vulcan 750

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post #3 of 5 (permalink) Old 06-06-2014, 11:26 AM Thread Starter
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I agree about the chance of internal squeeze out, they do use it for the case to case seal. I would be careful not to over apply and I am fixing this bike to sell. Teardown was to find a water leak and cause of a knock. Thought it was inter water pump bearing. the outer was in pieces, and the knock looks to be the dampers. as long as it doesn't leak oil I'll be happy. Cost of gaskets will be about $50, I have a tube of RTV. ( too lazy to take the time to cut out my own. lol )
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post #4 of 5 (permalink) Old 06-06-2014, 09:44 PM
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I used head and base gaskets and the one for the right side cover due to the water pump. Just didn't want the squeeze out hampering that. All the others I'm using RTV black. It worked good for the bevel gear case when I first switched motors and was too damn cheap to buy the gasket.

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post #5 of 5 (permalink) Old 06-07-2014, 02:34 AM
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personally there is only one gasket I would buy... the head gasket.. all the rest can be made out of manila folders, cereal boxes, and card stock.

When using RTV use a thin layer, and snug the bolts down evenly, but do not tighten them. let teh RTV cure for a full 24 hours then torque the bolts down to proper spec, this keeps the rtv from squeezing out of the mounting surface area...
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