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KZ1000 OEM 70mm piston pin holes??
- z1kzonly
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09 Jun 2018 07:43 - 09 Jun 2018 10:19 #784833
by z1kzonly
Livin in "CheektaVegas, NY
Went thru 25 of these in 40 yrs.
I SOLD OUT! THE KAW BARN IS EMPTY.
More room for The Old Girl, Harley 75 FLH Electra Glide,
Old faithful! Points ign. Bendix Orig. carb.
Starts everytime!
KZ1000 OEM 70mm piston pin holes?? was created by z1kzonly
I have a set of OEM stock 70mm pistons for a KZ1000. Got a little bit too much slop with wrist pins! .001-.002 clearance over service limit Service limit says .6724 in.
pin bores are showing .673 in. The wrist pins are fine .669 in. Limit on pins is .667 in.
The pins slide right through with no resistance.
Lesson Learned! Don't clean pistons while drinking beer! A little to aggressive with the wet sand paper dowel rolls in a hand drill!
But I would still use on a beater bike. Piston skirts are tight in bores.
Hesitating t to sell??
Opinions on loose pins in piston boss?
pin bores are showing .673 in. The wrist pins are fine .669 in. Limit on pins is .667 in.
The pins slide right through with no resistance.
Lesson Learned! Don't clean pistons while drinking beer! A little to aggressive with the wet sand paper dowel rolls in a hand drill!
But I would still use on a beater bike. Piston skirts are tight in bores.
Hesitating t to sell??
Opinions on loose pins in piston boss?
Livin in "CheektaVegas, NY
Went thru 25 of these in 40 yrs.
I SOLD OUT! THE KAW BARN IS EMPTY.
More room for The Old Girl, Harley 75 FLH Electra Glide,
Old faithful! Points ign. Bendix Orig. carb.
Starts everytime!
Last edit: 09 Jun 2018 10:19 by z1kzonly.
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- SWest
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- 10 22 2014
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09 Jun 2018 14:28 #784849
by SWest
Replied by SWest on topic KZ1000 OEM 70mm piston pin holes??
How much? Wrist pins should be easy enough to come by. I have a set of pistons and pins.
Steve
Steve
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- Scirocco
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09 Jun 2018 14:56 #784851
by Scirocco
My 1975 Z 1 B 900 Project
www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
Replied by Scirocco on topic KZ1000 OEM 70mm piston pin holes??
If i am understanding right, his piston pin bores in the piston are a little to much over bored/sanded.
I don´t know why he want do this,no need to do this but the clearance is a little bit to high now.
Don´t drink and drive but never, never, never drink and do a job like this!!!!
Lessen learned.
I don´t know why he want do this,no need to do this but the clearance is a little bit to high now.
Don´t drink and drive but never, never, never drink and do a job like this!!!!
Lessen learned.
My 1975 Z 1 B 900 Project
www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
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- Nessism
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09 Jun 2018 18:25 - 09 Jun 2018 18:25 #784869
by Nessism
Replied by Nessism on topic KZ1000 OEM 70mm piston pin holes??
What tools did you use to measure the piston pin bore? A three point internal mic is best. Removing significant material using sandpaper on a stick would be difficult unless you really bore down on it.
Last edit: 09 Jun 2018 18:25 by Nessism.
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- z1kzonly
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09 Jun 2018 18:58 #784873
by z1kzonly
Livin in "CheektaVegas, NY
Went thru 25 of these in 40 yrs.
I SOLD OUT! THE KAW BARN IS EMPTY.
More room for The Old Girl, Harley 75 FLH Electra Glide,
Old faithful! Points ign. Bendix Orig. carb.
Starts everytime!
Replied by z1kzonly on topic KZ1000 OEM 70mm piston pin holes??
They are loose. Just from feel! I used a simple vernier caliper. Was getting .673 & .674 in the pin bore.
Thanks.
Thanks.
Livin in "CheektaVegas, NY
Went thru 25 of these in 40 yrs.
I SOLD OUT! THE KAW BARN IS EMPTY.
More room for The Old Girl, Harley 75 FLH Electra Glide,
Old faithful! Points ign. Bendix Orig. carb.
Starts everytime!
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- Nessism
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09 Jun 2018 20:23 #784880
by Nessism
Replied by Nessism on topic KZ1000 OEM 70mm piston pin holes??
No way to properly measure with calipers. You need a proper micrometer for the pins and in internal mic for the piston bores. It's not unusual for the pins to slide easily.
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- DFIGPZ
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10 Jun 2018 12:33 #784899
by DFIGPZ
1984 750 Turbo
Replied by DFIGPZ on topic KZ1000 OEM 70mm piston pin holes??
I Have several sets of good used Pistons I keep them for boring 900 Blocks if you are in need I can let 4 of them go..
Barry
Barry
1984 750 Turbo
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