All of a sudden cylinder base gasket leaking oil at both front corners...

  • ken19
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All of a sudden cylinder base gasket leaking oil at both front corners...

02 Nov 2022 10:17
#876301
About a thousand miles after replacing cam chain and followers and all gaskets (Vesrah) it just started leaking at the front corners badly. Any shortcuts or am I up that well known Kawasaki creek.

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  • Warren3200gt
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Re: All of a sudden cylinder base gasket leaking oil at both front corners...

02 Nov 2022 10:23
#876302
Who forgot to re-torque the head after 3 or 400 miles then?
Retorque them now and you may be OK. 

Z1000J2 somewhat modified!

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  • Dr. Gamma
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Re: All of a sudden cylinder base gasket leaking oil at both front corners...

02 Nov 2022 11:59 - 02 Nov 2022 12:03
#876303
Once a fresh motor starts leaking. No matter how many times you retorque the head, it will never stop leaking...........

 
1972 H2 750 Cafe Racer built in 1974.
1976 KH400 Production Road Racer.
1979 Kz1000 MK. II Old AMA/WERA Superbike.
1986 RG500G 2 stroke terror.
1986 GSXR750RG The one with the clutch that rattles!

Up in the hills near Prescott, Az.
Last edit: 02 Nov 2022 12:03 by Dr. Gamma.
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  • ken19
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Re: All of a sudden cylinder base gasket leaking oil at both front corners...

02 Nov 2022 12:40
#876306
I did not use any sealant on the gaskets. Never had to in the past. This is not my first top end but it is my first kaw. Maybe use OEM gaskets. One is $82 and this one is $31 ! I used Vesrah. Never had any problem with them in the past.

But I agree,,, have to do it all again!

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  • Dr. Gamma
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Re: All of a sudden cylinder base gasket leaking oil at both front corners...

02 Nov 2022 13:19 - 02 Nov 2022 13:31
#876309
I don't know what year and model motor you have, but I just looked up a base gasket, center o-ring, and a valve cover gasket for what my Kz1000 motor uses. CAN'T BELIEVE O.E.M. KAWASAKI RETAIL PRICES!!!!!!!!!! 49 bucks for a base gasket!!!!!! 105 bucks for either the center o-ring or the valve cover gasket!!!!!! If I needed those gaskets I could not even afford to buy them at today's prices!!!! Glad I got a $hitload of all these gaskets on hand from like 35 years ago!!!!! I see why most folks are buying aftermarket gaskets like Vesrah now instead of O.E.M. Kawasaki!!! 
 
1972 H2 750 Cafe Racer built in 1974.
1976 KH400 Production Road Racer.
1979 Kz1000 MK. II Old AMA/WERA Superbike.
1986 RG500G 2 stroke terror.
1986 GSXR750RG The one with the clutch that rattles!

Up in the hills near Prescott, Az.
Last edit: 02 Nov 2022 13:31 by Dr. Gamma.

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  • Wookie58
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Re: All of a sudden cylinder base gasket leaking oil at both front corners...

02 Nov 2022 13:37
#876310
I don't know what year and model motor you have, but I just looked up a base gasket, center o-ring, and a valve cover gasket for what my Kz1000 motor uses. CAN'T BELIEVE O.E.M. KAWASAKI RETAIL PRICES!!!!!!!!!! 49 bucks for a base gasket!!!!!! 105 bucks for either the center o-ring or the valve cover gasket!!!!!! If I needed those gaskets I could not even afford to buy them at today's prices!!!! Glad I got a $hitload of all these gaskets on hand from like 35 years ago!!!!! I see why most folks are buying aftermarket gaskets like Vesrah now instead of OE
Shocking isn't it given that the production tooling probably paid for itself over 30 years ago 

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  • DFIGPZ
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Re: All of a sudden cylinder base gasket leaking oil at both front corners...

02 Nov 2022 14:29
#876313
I just did KZ1000 build for customer  and prices for OEM through the roof , but I try to use OEM on all my builds
Barry
1984 750 Turbo

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  • Nessism
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Re: All of a sudden cylinder base gasket leaking oil at both front corners...

02 Nov 2022 14:52
#876314
You can check eBay for gaskets.  There are typically a lot of them available for a fraction of OEM prices.  Problem is, sometimes they are very old, and old gaskets get brittle.  It's a crap shoot.
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  • hardrockminer
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Re: All of a sudden cylinder base gasket leaking oil at both front corners...

02 Nov 2022 17:07
#876315
I use Vesrah.  They are OK but I'll use OEM for a head job.
I have several restored bikes along with a 2006 Goldwing with a sidecar. My wife has a 2019 Suzuki DR 650 for on and off road.

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  • Injected
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Re: All of a sudden cylinder base gasket leaking oil at both front corners...

03 Nov 2022 02:35 - 03 Nov 2022 02:42
#876324
For Head Gaskets I use Cometic.
For all others I cut my own using the tracing method from two OEM master sets I have (650/1000)
I use FEL-PRO Karropak paper you can buy in bulk rolls from NAPA or UAP.
I have these gaskets on several engines, no prep and no leaks.
For rubber seals I use OEM or NOS if cheaper.

I bought a small desk top CNC with a lazer to cut gasket paper from DXF files but I have not had time to scan the masters I own.
I don't build engines that much that I would need to do that. Taking out the master and cutting tracing may be just as fast.
I would have to set up the CNC in the garage as you need smoke extraction when profiling.
The CNC cuts 12" x 18" so just big enough to do a base gasket or oil pan gasket. Cam cover maybe a stretch.
1978 KZ650B2 w 1197cc Z1 engine
1977 KZ650B1 w 750cc Spectre engine
1979 KZ650C3 w 831cc Hot Rod engine
1978 KZ650C2 w 762cc DFI project
1977 KZ650C1 stock restoration project
1978 KZ650B2 modified project
1978 KZ650B2 Injected Drag 831cc
1980 Z1 Custom Frame Drag 1327cc
1981 Z50R Honda tow bike
Last edit: 03 Nov 2022 02:42 by Injected.
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  • Nessism
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Re: All of a sudden cylinder base gasket leaking oil at both front corners...

03 Nov 2022 09:58
#876333
Hey, I'm all for DYI, but I wouldn't make a base gasket.  The material used needs to be dense and not very compressible.  Most gasket sheet material sold at auto parts stores is much softer than the OEM material.

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  • Injected
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Re: All of a sudden cylinder base gasket leaking oil at both front corners...

04 Nov 2022 08:17
#876377
Maybe I am super lucky because I have 3 engines with my DIY base gasket... All OK.
1978 KZ650B2 w 1197cc Z1 engine
1977 KZ650B1 w 750cc Spectre engine
1979 KZ650C3 w 831cc Hot Rod engine
1978 KZ650C2 w 762cc DFI project
1977 KZ650C1 stock restoration project
1978 KZ650B2 modified project
1978 KZ650B2 Injected Drag 831cc
1980 Z1 Custom Frame Drag 1327cc
1981 Z50R Honda tow bike

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