Clutch cover gasket - Yamaha ATV Forum
 
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post #1 of 7 Old 03-21-2007, 02:46 PM Thread Starter
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Clutch cover gasket

I just did my 686/cam install and at the end of the weekend my clutch cover gasket blew. I am in the process of replacing it and was wondering if most people installed the gasket dry or with some gasket sealer? Is it common to blow more gaskets with the higher compression?

’07 700R
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post #2 of 7 Old 03-21-2007, 04:28 PM
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if you are going to use anything only use aviationg grade permatex on that gasket, absolutely no rtv or silicone. i just put them on dry normally
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post #3 of 7 Old 03-21-2007, 06:17 PM
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Why would a clutch cover gasket "blow"? It's not holding any pressure.

Sometimes the thin section of a stock gasket falls inside on the bottom but won't leak right away. There are better options out there for clutch and stator cover gaskets than stock, I just replaced both sides with a style I hadn't seen before. I think they are Cometic and I got them from Craycraft Racing. They are thick, stiff, and have a thin pebble grain finish that seems to be soft plastic. They are nothing like the stock gaskets, these things are stout and reusable.

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post #4 of 7 Old 03-21-2007, 06:57 PM
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Quote:
Originally Posted by UBETRUN
Why would a clutch cover gasket "blow"? It's not holding any pressure.

Sometimes the thin section of a stock gasket falls inside on the bottom but won't leak right away. There are better options out there for clutch and stator cover gaskets than stock, I just replaced both sides with a style I hadn't seen before. I think they are Cometic and I got them from Craycraft Racing. They are thick, stiff, and have a thin pebble grain finish that seems to be soft plastic. They are nothing like the stock gaskets, these things are stout and reusable.

Yep Cometic makes a darn good gasket.

Just a slow banshee
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post #5 of 7 Old 03-21-2007, 07:32 PM
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ya that is what i have on my engine, i have had the cover on two different engines and off like 3 or 4 different times.
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post #6 of 7 Old 03-22-2007, 09:00 AM Thread Starter
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I just finished replacing it and I agree, the stock gasket is crap. I tore one getting it in, they are paper thin, and had to buy another one. The old one had definitely blown, it was dumping oil at an alarming rate. I think I will hunt down a Cometic one and keep it around for the next time I have to get in there.

’07 700R
Lonestar LT A-arms
TCS Long Travel Fronts
Elka Dual rate rear
Tag +1 Steering Stem
Denton Stabilizer
Lone Star +3 axle
Pro Taper CR-mid bars
AC Nerf bars/grab bar
IMS/Roll Foot Pegs/Heel guards/bumper
Bug Gun full exhaust
Alba/Dobeck/Programmer
GYTR Skids/Graphics
Keystone Powered

2004 Raptor 660
11:1 686
Hot Cams Stage 1
Big Gun Exhaust
Pro Design/K&N intake
Alba,GYTR,Terrycable,Renthal
For sale
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post #7 of 7 Old 03-22-2007, 05:39 PM
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COMETIC ...... their side cover gaskets are great. They have an aluminun center with a rubberized/foam type of material srrounding the aluminum. I just had to get into my side covers again , and I re-used the Cometics with no problems. They pop right off....The paper gaskets always tear and get stuck to either the crankcase or the side cover, then you have to scrape all that crap off before installing a new.. Go with Cometic

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