Hi Guys, back onto this engine build after some time and I’ve managed to sort everything out and started back on Crank Journal clearance. Assembled everything and platigauge checked the clearances and all well within spec. However then I notice one journal has a bit of uneven wear on it - see below....

why are you replacing these bearings they are normally bulletproof ? Ok That’s a good question and I did consider to reuse them but figured that while I’m replacing everything else it would be sensible to change them too. Maybe no point? Really no point unless they are rusty or it's done a million ...

Damn oh well that’s one less job to keep me busy ☹️

Thanks it seems to be the right one but I will call them tomorrow and ask them to check dimensions to be sure. Thanks everyone

z1bman wrote:why are you replacing these bearings they are normally bulletproof ?

Ok
That’s a good question and I did consider to reuse them but figured that while I’m replacing everything else it would be sensible to change them too. Maybe no point?

BEARING-NEEDLE,20V27 Not Available

I think this is the one.. GPZ Engine has a larger bearing...

Seems that the bearings in question are all listed as the same for nearly every year. I’ll have a surf through various diagrams I guess and see what I can find. Everything else is identical just these two needle bearings! Grrr

Ok now I’m really confused. I order bearings as identified but still not correct when they arrived which makes me wonder if I’ve identified this engine wrongly!?!. Does anyone have a way to confirm the engine number by year etc? Engine Number is KZ750EE083455

Thanks guys!

Lee

Correct there is a Bush on them but it’s 2mm bigger than the Kwak bearings I got. Fairly suede they bagged the wrong bearings but I have ordered off the simplybearings site as suggested so will find out soon. Cheers Guys!

Coose Good to hear from you! Sorry I meant to say ID 20mm, I measured 27mm od on the bearing but they are a bit tricky to get a proper measurement on so that sounds like the guy. The ones supplied in the kawasaki packets as closer to 24mm of and narrower so sounds like the issue is they supplied the...

Chaps I have a question that hopefully someone can help with. Rebuilding a Z750E Engine for my 650 project and all the gearbox bearings etc arrived so started piecing back together. Anyway each transmission shaft has a needle roller bearing on it and on the parts diagrams it shows to be 92046-1030, ...

r3sc wrote:I’m mad for anything off road and enduro and that F8 is stunning!
The 1969 H—-a SL350K0 below is in my stable and I’m currently looking for a two stroke buddy for it!

That’s very nice too! Looks really tidy!

Thanks for the complements guys, I restored both of them 5-6 years ago when living in the states and NOS parts were in abundance which really helped with the F8! Ossa was a bit harder for parts though. They were in storage for a few years as I moved around a bit so just happy to get them out on show...

Welcome Col. How North are you? Aberdeen here.

Also got the Ossa Pioneer dug out and dusted off.. also 1971 model.