Subaru 32mm Valve Shims

  • pbmax
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Subaru 32mm Valve Shims

05 Aug 2015 10:14 - 05 Aug 2015 10:20
#684447
No eBay APP ID and/or Cert ID defined in Kunena configurationI just discovered that the Subaru Impreza and Legacy use 32mm over bucket valve shims. Thickness range from 2.00 to 2.81.

Anyone try these in your KZ750?

opposedforces.com/parts/impreza/us_g11/t...nism/illustration_1/

Last edit: 05 Aug 2015 10:20 by pbmax.

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  • Nessism
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Re: Subaru 32mm Valve Shims

05 Aug 2015 10:21
#684448
Nice one!
Ed
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0

www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know

1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread

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Re: Subaru 32mm Valve Shims

05 Aug 2015 10:28
#684449
Searching Subaru forums, they are supposed to be 32mm.

But even if they fit correctly, is there anything else to be worried about such as hardness?

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  • SWest
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Re: Subaru 32mm Valve Shims

05 Aug 2015 12:05
#684476
I wouldn't think so. The shop in town has some 29mm shims for VW. They are much thicker than ours so not usable.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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Re: Subaru 32mm Valve Shims

05 Aug 2015 12:10
#684481
These Subaru 32mm shims have thickness from 2.00 to 2.81.

KZ 32mm shims have thickness from 2.20 to 3.4.

These **could** work. Maybe, hopefully, pretty please...

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Re: Subaru 32mm Valve Shims

05 Aug 2015 14:28
#684498
pbmax wrote: These Subaru 32mm shims have thickness from 2.00 to 2.81.

KZ 32mm shims have thickness from 2.20 to 3.4.

These **could** work. Maybe, hopefully, pretty please...
I would say the hardness would be the question. The Kawi shims are surface hardened to a very hard value, not sure exactly what Rc value but really hard. If usable, that is a great find. The thinner values are the most needed since most old heads have been "seated" a few times and the valve is deeper in the head.
1979 KZ-750 Twin

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Re: Subaru 32mm Valve Shims

10 Aug 2015 17:20 - 10 Aug 2015 17:23
#685292
I ordered a Subaru 32mm shim. Pics below comparing 1 Subaru shim to 3 KZ 32mm shims.
My valve cover is back on so I didn't try it my KZ750 B4, but looks like it would work.

[img

[img

[img
Last edit: 10 Aug 2015 17:23 by pbmax.

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  • mike1957
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Re: Subaru 32mm Valve Shims

10 Aug 2015 18:38
#685303
I wish you luck with it let us know how it works out.
I would stay with Kawasaki oem parts.
mike1957

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Re: Subaru 32mm Valve Shims

10 Aug 2015 19:03
#685307
I haven't had any problems with aftermarket shims. If these are factory they should be just as good if not better.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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Re: Subaru 32mm Valve Shims

10 Aug 2015 19:23
#685311
I wouldn't hesitate to use these shims if they fit my bike.
Ed
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0

www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know

1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread

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Re: Subaru 32mm Valve Shims

10 Aug 2015 19:48
#685316
I've had my experiences with after market parts,not shims but
other parts.Thinking I was going to save some money. on my kz 1000 and 900 anyway it was not worth
buying them.Had to get the oem parts the after market parts were crap and had to do the job again.
a lot of time and money wasted.I rather spend a little more on the parts and do the job once.
mike1957

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Re: Subaru 32mm Valve Shims

10 Aug 2015 20:47
#685326
mike1957 wrote: I've had my experiences with after market parts,not shims but
other parts.Thinking I was going to save some money. on my kz 1000 and 900 anyway it was not worth
buying them.Had to get the oem parts the after market parts were crap and had to do the job again.
a lot of time and money wasted.I rather spend a little more on the parts and do the job once.

Do whatever you want, but I expect Subaru parts to be at least as good or better than Kawasaki parts. It's the crappy K:&L aftermarket parts that I worry about.
Ed
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0

www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know

1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread

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