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Outer crank bearing available?
- slmjim+Z1BEBE
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We have what appears to be a good bottom end sans jugs & head, with crank & complete tranny, Z1E - 0537xx, history unknown. Cases had never been split until we did to clean internally & visually check condition of the tranny & crank. Tranny looks OK, second gear dogs show only normal wear with no significant rounding. No rust. Shift forks are straight. The crank is missing the caged roller bearing & snap ring at the timing end of the crank. It otherwise seems OK; a 17mm precision-ground rod slides through all four of the small ends easily when aligned, indicating it's basically straight.
Are the caged outer roller bearings available seprately, or is the crank a very robust doorstop now?
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slmjim & Z1BEBE
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- TexasKZ
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Kawasaki, thankfully, often provides the universal bearing designation. Partzilla does not list the bearing on the ignition side separately, at least so far as I could find.
The bearing on the generator side seems to be an N PK 30 40 16.8X3. I did a general web search and specifically searched SKF and Carter, and came up with nothing.
I wonder if the bearings at each end of the crank are the same, if there is a newer part number, if the hurricane is going to hit us, what is the meaning of life?
Bottom line is, Ed is right.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
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- slmjim+Z1BEBE
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The outer race was still captive in the cases, of course. It's the caged roller bearing, thrust washer & snap ring missing. The bearing surface on the crank appears to be good.It can be a door-stop if you want it too. But totally bizzare it's missing that bearing?? There in addition should be a thrust spacer and a clip that keeps it in place. I have the bearing/race/spacer and circlip. What were your intentions for the whole clump?
Not sure what the inquiry, "What were your intentions for the whole clump?" is asking? Our intent is to sell the bottom end at Mid-Ohio. We neither need or want it, and It's been needlessly taking up floor space in the shop for a few years.
If you have the caged roller, thrust washer & snap ring to spare we'd like to talk.
Good Ridin'
slmjim & Z1BEBE
A biker looks at your engine and chrome.
A Rider looks at your odometer and tags.
1973 ('72 builds) Z1 x2
1974 Z1-A x2
1975 Z1-B x2
1993 CB 750 Nighthawk x2
2009 ST1300A
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- Cra-z1
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japan.webike.net/products/21852478.html
They offer con rod bearings also
japan.webike.net/products/21852477.html
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- slmjim+Z1BEBE
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Hmmm... Product Detail sez "Side bearing race inner diameter: 40mm". That might be for a later J-motor. Someone more knowledgeable of later big-pin cranks would know. We don't have any to measure.Do you need this bearing
japan.webike.net/products/21852478.html
slmjim carefully measured the Z1 crank surface where the side bearing (inner) race O.D. is located, just inboard of the snap ring groove. Twice. Came up with 30mm both times. I.D. of the outer race is 40mm. So if the O.D. of the linked webike caged roller assembly is 40mm, and the I.D. of said assembly is 30mm it should work.
If a lead in CONUS that popped up the past couple of days doesn't pan out we'll contact them to clarify.
Thank You for the find!
Good Ridin'
slmjim & Z1BEBE
A biker looks at your engine and chrome.
A Rider looks at your odometer and tags.
1973 ('72 builds) Z1 x2
1974 Z1-A x2
1975 Z1-B x2
1993 CB 750 Nighthawk x2
2009 ST1300A
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Yes. Thanks!Did you see my email ref contact details for Clay (asphalt900)
Good Ridin'
slmjim & Z1BEBE
A biker looks at your engine and chrome.
A Rider looks at your odometer and tags.
1973 ('72 builds) Z1 x2
1974 Z1-A x2
1975 Z1-B x2
1993 CB 750 Nighthawk x2
2009 ST1300A
www.kawasaki-z-classik.com
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on all things Z1, Z2 and KZ900.
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- slmjim+Z1BEBE
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Arrived yesterday. Exactly what we needed. Thank You!Hey Jim!! I know you're not a "texter" and keep the cell for emergencies. Senior Cellular program, can't blame You. Your parcel with all the bits for RH or LH crankshaft are on the way.
Expect a text next time slmjim turns his personal tracking dev... er, phone on.
Good Ridin'
slmjim & Z1BEBE
A biker looks at your engine and chrome.
A Rider looks at your odometer and tags.
1973 ('72 builds) Z1 x2
1974 Z1-A x2
1975 Z1-B x2
1993 CB 750 Nighthawk x2
2009 ST1300A
www.kawasaki-z-classik.com
An enthusiast's forum focused exclusively
on all things Z1, Z2 and KZ900.
Please Log in or Create an account to join the conversation.