Shimming the crank (KZ440)

  • Michi
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Shimming the crank (KZ440)

27 Jun 2023 16:35
#886548
Just wondering, suppose you have excessive end play/float on a KZ440 crank (on a bike that worked). Could you shim it with precise shims (where would you get them)? I'm thinking ahead a bit here. Thanks
KZ440A LTD (1980)

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Re: Shimming the crank (KZ440)

27 Jun 2023 17:30
#886549
How do you know it is loose?
What condition are your bearings?
Does it knock?
Get some plasti-gauge and check your clearances.
By the time you buy several rolls of shim stock to find the size you need you could of bought a good crank and some bearings.

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2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected

www.dotheton.com/forum/index.php?topic=39120.0


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Re: Shimming the crank (KZ440)

27 Jun 2023 18:07 - 27 Jun 2023 18:08
#886550
I absolutely do not know it's loose. 
I am pulling this engine apart necessarily (I have to as it has a piston and rings failure and needs pieces of metal plucked out) and when it's open I'm going to measure everything with a view to sorting everything and making sure it's all in spec. When I measure it, I'll know. But, tbh, yeah I think it's going to be out of spec. I will measure - I'm not just saying that for no reason. It is a high mileage engine. I have the gauge and the tools and I can measure.
I just want to know the process. You reckon that if it's loose the best course of action is to get a used replacement crank and some new bearings as opposed to shimming then?
KZ440A LTD (1980)
Last edit: 27 Jun 2023 18:08 by Michi.

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Re: Shimming the crank (KZ440)

28 Jun 2023 21:00
#886600
Any process on engines is covered in the FSM for that model.
The FSM will also cover all the engineered wear limits for the majority of engine components.
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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Re: Shimming the crank (KZ440)

01 Jul 2023 16:58
#886716
Any process on engines is covered in the FSM for that model.
The FSM will also cover all the engineered wear limits for the majority of engine components.
Yes, that is true. It's in the Kawasaki service manual. 
KZ440A LTD (1980)

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