Husqvarna 36 strange problem

[chrissalas1]

Hi
I have on my bench a husqvarna 36 that came to me because had starting problem.I found the ignition coil cable was broken and had no spark.I repaired the cable so i started it.When moving the saw up and down goes off so i think it has an air leak.Removing the flywheel for preparing for pressure testing i found that the crankshaft goes in and out(not up and down).So i teared down whole chainsaw and i found that the bearings on the crankshaft goes in and out very very easy(very loose).I tried an aftermarket crankshaft and the same happens.The bearings i tried are 6201 c3.Should i try 6201 c2?

 

[Stump Shot]

Hi
I have on my bench a husqvarna 36 that came to me because had starting problem.I found the ignition coil cable was broken and had no spark.I repaired the cable so i started it.When moving the saw up and down goes off so i think it has an air leak.Removing the flywheel for preparing for pressure testing i found that the crankshaft goes in and out(not up and down).So i teared down whole chainsaw and i found that the bearings on the crankshaft goes in and out very very easy(very loose).I tried an aftermarket crankshaft and the same happens.The bearings i tried are 6201 c3.Should i try 6201 c2?

Yes, the bearings on some of the smaller saws are a slip fit. Make sure the bearings are slid all the way on the crank when reassembling.

 

[chrissalas1]

Yes, the bearings on some of the smaller saws are a slip fit. Make sure the bearings are slid all the way on the crank when reassembling.

First time seeing that very loose fit.Sould i try c2 clearance?

 

[Stump Shot]

First time seeing that very loose fit.Sould i try c2 clearance?

If I understand it right, this wouldn't change your shaft fit at all. The C rating is the ball clearance inside the bearing I am told.

From the sample of small saws like this I have repaired the slip fit on the crank is normal. The new seal will hold it in its proper location.

 

[heimannm]

It should be possible to use one of the LokTite 600 formulas (661, 648, 690, etc.) or similar products to secure the bearing in position. They are designed specifically for such a task.

Mark

 

[chrissalas1]

It should be possible to use one of the LokTite 600 formulas (661, 648, 690, etc.) or similar products to secure the bearing in position. They are designed specifically for such a task.

Mark

I have the loctite 620.I don't know if it will hold due to the temperature.

 

[heimannm]

I have used 690 in the past for bearings and seals, but it seems the 690 number is no longer valid. I am not sure which of the new numbers would be the replacement but I expect they have a formula that works at crankcase temperature.

Mark