Hi! Im rebuilding a 340. I ordered a 345 cylinder kit and new bearings with seals. The problem is that my crankshaft moves sideways a lot. Crankshaft lobes are touching the crankcase. I canot find any problems with the parts. Am i missing something?
Husqvarna 340 crankshaft bearings
- Thread starter hazor
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OEM bearings or aftermarket?
On the smaller Husky saws, I find the OEM bearings fit better. But I see the ones you need are $51.00 each!!! Damn.... At least they give ya the seals on them.
I have had very good results with these SKF C3 rated bearings in a few 350's I rebuilt last summer. Worth it.
https://www.ebay.com/itm/1438985854...FSujQ==|tkp:Bk9SR5jX-YGeYQ&LH_ItemCondition=3
I have had very good results with these SKF C3 rated bearings in a few 350's I rebuilt last summer. Worth it.
https://www.ebay.com/itm/1438985854...FSujQ==|tkp:Bk9SR5jX-YGeYQ&LH_ItemCondition=3
Bearings should be close to this unless they complete garbage....
https://www.skf.com/group/productinfo/productid-6202/C3
Seals, I got nothing as there are a few different places that make them, but I have used the overpriced OEM and cheaper aftermarket seals like Farmertec that work just fine.
I think it is time to measure the crankshaft......
https://www.skf.com/group/productinfo/productid-6202/C3
Seals, I got nothing as there are a few different places that make them, but I have used the overpriced OEM and cheaper aftermarket seals like Farmertec that work just fine.
I think it is time to measure the crankshaft......
Possible. Depends on the year, sub-model and serial number of your saw.
Is the crank moving inside the inner diameter race of the bearings or is the outer bearing race moving side to side in the lower engine housing? Hence why I suggested checking the diameter of the crankshaft where the bearings sit. And the bearings outer race diameter.
Compare with the SKF dimensions I posted. All he SKF I have used fit perfectly with minute play.
Is the crank moving inside the inner diameter race of the bearings or is the outer bearing race moving side to side in the lower engine housing? Hence why I suggested checking the diameter of the crankshaft where the bearings sit. And the bearings outer race diameter.
Compare with the SKF dimensions I posted. All he SKF I have used fit perfectly with minute play.
Tomos770
ArboristSite Guru
Aint they 6201 bearing type? Use C3 when you will order....!Does anybody have the correct measurments for the OEM bearings and seals? I could then check my current bearingsmy originals are allready gone.
On larger....lets say 50ccm saws thwy are usually 6203
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The 340 uses 6202-C3 open bearings. The dimensions are:
| Bore diameter | 15 mm |
|---|---|
| Outside diameter | 35 mm |
| Width | 11 mm |
My bearings have the same dimensions
I uploaded a video of my problem
Center the crank in the block and tighten the cylinder down and it won’t move anymore
Sorry if it's a dumb question but, How is it going to stop the crank from moving sideways? The bearings are moving freely on the crankshaft. No heating or cooling was required to change the bearings. Is it suposed to be like that?
Yeah the crank is free to move a little bit. But bolting the cylinder down creates a little bit of a load on the bearings and seems to hold the crank in place. You could also Loctite the crank to the inner races to hold them where you wanted. Make sure you put a bit of sealant all the way around the rubber on the seals and onto the case when you stick it all together
