Top Gasket verification

  • gordone
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Top Gasket verification

18 Aug 2017 01:04
#769187
Hi,

I have received a new top gasket form ebay, but I just wanted to ask if it`s damage?
In both ends it was some bend up, not much, but some. the brun stuff has some mark after it, but I cannot see that that the metal inside the gasket is damage ?

Please see picture here:
temp.dynamitt.net/div/MC/topgasket/

Will these be any problem for me?

Thank you for taking your time to looking into these.
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine

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  • scubaanders
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Re: Top Gasket verification

18 Aug 2017 01:41
#769188
Bummer!
I would not fit that gasket. Thats the notorious source of a oil leak on theae bikes even if you fit new orings.
/Anders
Gpz750R1 1982
Gpz750A1 1983
Gpz1100A2 1984
FZ750 1985
Gpz900R -91

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  • Nessism
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Re: Top Gasket verification

18 Aug 2017 07:26
#769194
I'd use it. Per the manual's instructions, you are supposed to coat that area of the gasket with sealant during assembly anyway.
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Re: Top Gasket verification

18 Aug 2017 10:51 - 18 Aug 2017 10:53
#769203
I understand, because the metal inside the gasket looks great, so the sealer will properly fix it, hope so !
It looks like the oil channels in both side of the engine is leaking on my existing top gasket... and not from the piston, because is just in both ends its leaking...

Is it a special seal I need to use, or just a random top gasket seal for cars?
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Last edit: 18 Aug 2017 10:53 by gordone.

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  • SWest
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Re: Top Gasket verification

18 Aug 2017 16:16
#769213
It's the O ring that makes the seal. The old ones get hard and sometimes crack. I'd use a good sealer not RTV. It weeps. I like the copper coat for head gaskets.
Steve

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Re: Top Gasket verification

19 Aug 2017 02:19
#769232
Thank you for giving me more inputs to "learn" how these is working!
I`m confident using it now.

Do you have examples of seals brand I can use ?
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine

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Re: Top Gasket verification

19 Aug 2017 06:11
#769234
Don't use the regular Permatex with the brush. It's a PITA to get off.
Steve
www.permatex.com/products/gasketing/gask...ket-hi-temp-sealant/
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