how to install new gaskets
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how to install new gaskets
06 Mar 2011 11:37
I'm rebuilding my engine and I've read lots of posts on gaskets, etc that kinda confuse me.
I just bought a new cylinder base gasket. Do I just plop that in dry or should it be coated with something? I really don't want it leaking and have to break the motor apart just to fix that.
Also, besides a razor blade and elbow grease, is there a better way to get rid of the old gasket material? And how "clean" does the metal have to be of that old crap? Is a little bit of green on it fine?
I just bought a new cylinder base gasket. Do I just plop that in dry or should it be coated with something? I really don't want it leaking and have to break the motor apart just to fix that.
Also, besides a razor blade and elbow grease, is there a better way to get rid of the old gasket material? And how "clean" does the metal have to be of that old crap? Is a little bit of green on it fine?
1975 KZ400 D
1980 KZ550 LTD
(1997 H-D Sportster 883)
1980 KZ550 LTD
(1997 H-D Sportster 883)
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- stonemaster
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Re: how to install new gaskets
06 Mar 2011 12:21
elbow grease and a blade and emory cloth, u want to the metal with no residue, I tried gasket remover but no luck, we didnt use anything on the base gasket but did use spray copper on the head gasket
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- Topper
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Re: how to install new gaskets
07 Mar 2011 06:23
I just applied my first gasket. It was the valve cover gasket and I used a gasket "sealant" I found at the local auto store. It was a mess and pretty hard to work with.
The tube didn't come with any kind of applicator tip and within the first few seconds I realized I really needed one. I found a little plastic cap, drilled a small hole in it and screwed it on the end of the tube of sealant. That made it a lot easier to control.
I'm totally new to all this so I have no idea whether or not I really needed the sealant. I figured better safe than sorry. Though now that I've done it I wonder if the real sorrow will come the next time I have to remove the valve cover.
I'd love to hear from the more seasoned mechanics about whether or not using some kind of sealant is advised.
The tube didn't come with any kind of applicator tip and within the first few seconds I realized I really needed one. I found a little plastic cap, drilled a small hole in it and screwed it on the end of the tube of sealant. That made it a lot easier to control.
I'm totally new to all this so I have no idea whether or not I really needed the sealant. I figured better safe than sorry. Though now that I've done it I wonder if the real sorrow will come the next time I have to remove the valve cover.
I'd love to hear from the more seasoned mechanics about whether or not using some kind of sealant is advised.
Permanent and perpetual noob.
1979 KZ750 Twin
2009 Kawasaki Versys
1979 KZ750 Twin
2009 Kawasaki Versys
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- stonemaster
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Re: how to install new gaskets
07 Mar 2011 06:35
u dont need sealant on a valve cover gasket at all unless maybe u are reusing one, I have used gasket in a tube when ididnt have a valve cover gasket handy but that was a long time ago
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- Topper
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Re: how to install new gaskets
07 Mar 2011 06:38
Other than gasket reuse, when would you use a gasket sealant? And what's the spray on copper stuff you mentioned?
Permanent and perpetual noob.
1979 KZ750 Twin
2009 Kawasaki Versys
1979 KZ750 Twin
2009 Kawasaki Versys
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- 650ed
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Re: how to install new gaskets
07 Mar 2011 06:50
Take a look in your Kawasaki Factory Service Manual. It shows when and where to apply sealant to gaskets. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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- stonemaster
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Re: how to install new gaskets
07 Mar 2011 08:43
I got a friend who's done about 50 of these Z1 rebuilds and he turned me on the a high temp copper spray for use on head gaskets, makes em sticky as hell,
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- mjg15
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Re: how to install new gaskets
07 Mar 2011 09:09 - 07 Mar 2011 09:13
On the valve cover gasket you may want to use something that isnt sticky so you can reuse the gasket after checking clearances. A very light coat of grease works well.
The copper spray does work well for many of the gaskets where sealer is a good idea. I've had good luck with it. I've even used it to reuse used head gaskets on a racebike (when there was no time to get a new one).
I've also had good luck using gel type paint stripper to remove old gaskets. You just need to be very careful when working near painted surfaces that you dont want damaged.
The copper spray does work well for many of the gaskets where sealer is a good idea. I've had good luck with it. I've even used it to reuse used head gaskets on a racebike (when there was no time to get a new one).
I've also had good luck using gel type paint stripper to remove old gaskets. You just need to be very careful when working near painted surfaces that you dont want damaged.
'80 Z750fx
'81 KZ550A
'81 GPz550's, Too many!
'82 KZ1000R
'82 GPz750
'90 ZR550
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'81 KZ550A
'81 GPz550's, Too many!
'82 KZ1000R
'82 GPz750
'90 ZR550
Project photo album: s163.photobucket.com/albums/t289/mg15_ph...GPz-ZR550%20project/
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Last edit: 07 Mar 2011 09:13 by mjg15.
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- Jeff.Saunders
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Re: how to install new gaskets
07 Mar 2011 09:25
On the base gaskets I do use some sticky goo - but not to seal it.
I spray the top of the gasket and stick the gasket to the underside of the cylinder block. THis gets it out of the way reducing any chance a piston skirt will catch and tear it.
I spray the top of the gasket and stick the gasket to the underside of the cylinder block. THis gets it out of the way reducing any chance a piston skirt will catch and tear it.
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- DoubleDub
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Re: how to install new gaskets
07 Mar 2011 10:12
Jeff - how about the stator grommet on the 900/1000's? I'm ordering a new one from you and was interested in your opinion there. Should the new grommet be supplemented with some silicone or other sealant to provide an oil-drip free seal?
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- Jeff.Saunders
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Re: how to install new gaskets
07 Mar 2011 10:48
I pack the channel behind the rubber grommet absolutely solid with 1104/1194 goo... I usually do this little-by-little over several days as the goo shrinks when it dries.
Before I do this, I clean all the wires, the channel and grommet as thoroughly as possible.
Before I do this, I clean all the wires, the channel and grommet as thoroughly as possible.
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- DoubleDub
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