Crank case: Sealant or no Sealant?

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17 Jun 2009 11:58 #299919 by mjkawa
Crank case: Sealant or no Sealant? was created by mjkawa
Hello all, I am about ready to close up the crank case on my 77 kz650, and I was wondering if anyone would recommend any type of sealant? Or no sealant? This is the one seal w/o any gasket. I really dont want to have to go this deep again, just to fix a messy oil leak.

Thanks in advance for any advice.
82 KZ-1000-J
77 KZ650 B

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17 Jun 2009 12:03 #299920 by timebomb33
Replied by timebomb33 on topic Crank case: Sealant or no Sealant?
three bond 1104 is the product i always use also some people use loctite 515 flange sealant i'm not a fan myself it is a bit on the messy side. 1104 doesn't harden so it has some give on surfaces that get a lot of heatcycles and it is great on alloy parts cleans up easy to and wont squish out like silicone will also it is oil resistant. it is available at most bike shop's
1973 z1 2-1974z1-a,2-1975z1-b dragbikes1015cc+1393cc, 1977kz1000,1978kz1000,1981kz1000j, 1997 zx-11, 2000 z12r,1428turbo nitrous pro-mod and a shit load of parts thats all for now leader sask.,CANADA
I THINK MY POWERBAND BROKE

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17 Jun 2009 12:06 - 17 Jun 2009 12:14 #299921 by kaw74z1
Replied by kaw74z1 on topic Crank case: Sealant or no Sealant?
I have always used Yamabond when splitting cases and I have never had a leak ;) I get mine at my local Yamaha dealer. The dealer told me that the Harley guys buy it by the case. :P three bond 1207b and yamabond 1207b and kawibond 1207b and suzukibond 1207b are all the same. just different packaging.
1974 Z1 with a MKII And a 1105 big bore kit 10.5 to 1 comp. Andrews 2x cams ported head dyna s with green coils V&H sidewinder pipe airshifter 4in.over arm
Last edit: 17 Jun 2009 12:14 by kaw74z1.

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17 Jun 2009 12:32 - 17 Jun 2009 12:34 #299923 by OnkelB
Replied by OnkelB on topic Crank case: Sealant or no Sealant?
ThreeBond 1104 is my choice too - I believe they renamed it to 1194 some time ago.

6 bucks a tube + s/h from Z1E - one tube is more than you need.
77 KZ 650 B1, 82 GPz 1100 B2.
Last edit: 17 Jun 2009 12:34 by OnkelB.

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17 Jun 2009 13:35 #299930 by Old Man Rock
Replied by Old Man Rock on topic Crank case: Sealant or no Sealant?
Same here... ThreeBond 1104/1194... Not one leak...

OMR
1976 KZ900-A4
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter

Phoenix, Az

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17 Jun 2009 13:53 - 17 Jun 2009 13:54 #299937 by bountyhunter
Replied by bountyhunter on topic Crank case: Sealant or no Sealant?
mjkawa wrote:

Hello all, I am about ready to close up the crank case on my 77 kz650, and I was wondering if anyone would recommend any type of sealant? Or no sealant? This is the one seal w/o any gasket. I really dont want to have to go this deep again, just to fix a messy oil leak.

Thanks in advance for any advice.

The mechanics at the Kawi dealer shop told me they use 3-bond for that. That's the sealer to use on something that won't come apart again for at least ten years and you NEVER want to see leaking oil.:laugh:
1979 KZ-750 Twin
Last edit: 17 Jun 2009 13:54 by bountyhunter.

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