The Husky 42/42 special/242/246 thread

[Tor R]

I wonder if the red glue would hold it, I'm just curious

I wouldn't bother trying that, there are enough saw bodies out there to get a good crank from.

The most important thing is to know if it is an 01 or 02 crank since the crankcase is a little different on them.
If it is an 01 crank, you should preferably use a 01/03 crank, but if it is an 02 crank, all 01/02/03/04 will fit in the crankcase.

 

[Harald H]

How did you find out it had a leak between the bearing and the crankshaft? Did you do this with the oil seal off when you pressure tested? If you did the test with the oil seal on and it is leaking along the crankshaft, then you will need a new oil seal, one with a softer rubber and newer spring in it to hold it against the crankshaft to prevent the leaking. You should not need to replace the bearing unless it is corroded, burned, loose or broken.

This leak is not related to the oil seal, but between the bearing and the crankshaft.

 

[Harald H]

You have to split the crankcase again anyway with that leak.
It's 50-50 if it's an oversized bearing, or if the crankshaft is undersized, you can find out by testing a 6201 bearing on the shaft, if the bearing slides in without having to press, you can throw the crank.
I've seen this a few times, on both 238 and 242, twice on both 238 and 242, undersized crankshaft.

Ok, thank you. More work on this 42 than I planned.

 

[Tor R]

Ok, thank you. More work on this 42 than I planned.

It's very disappointing when things like this come up on the pressure test, I've been there four times myself, I know how it feels.
A couple of them were very surprising too.
I had a five-year break from chainsaws, but this spring I got hold of four 238 projects where all the cranks were good, and three 242 04 cranks, so suddenly all the waiting projects were in order.

When you split the crankcase, that is, you actually only need to split the chain side, you can try to see if the 6201 bearing slides too easily into the crankshaft.
Try a couple of bearings.
If they fit snugly as usual, the bearing is faulty.

I forgot to ask you, where in Norway do you live?

 

[Harald H]

It's very disappointing when things like this come up on the pressure test, I've been there four times myself, I know how it feels.
A couple of them were very surprising too.
I had a five-year break from chainsaws, but this spring I got hold of four 238 projects where all the cranks were good, and three 242 04 cranks, so suddenly all the waiting projects were in order.

When you split the crankcase, that is, you actually only need to split the chain side, you can try to see if the 6201 bearing slides too easily into the crankshaft.
Try a couple of bearings.
If they fit snugly as usual, the bearing is faulty.

I forgot to ask you, where in Norway do you live?

Hi, thank you for the details. I did split it some weeks ago. Originally I meant to replace both bearings, when I found out that pto bearing is not so easy to find etc. Then I decided to keep the original on the pto side, and replaced the flywheel bearing with a new. I guess it might very well be that the original bearing is the source of the problem and I can order a new one from skogsverktyg.se, but we will find out. I live in Oslo

 

[Tor R]

Hi, thank you for the details. I did split it some weeks ago. Originally I meant to replace both bearings, when I found out that pto bearing is not so easy to find etc. Then I decided to keep the original on the pto side, and replaced the flywheel bearing with a new. I guess it might very well be that the original bearing is the source of the problem and I can order a new one from skogsverktyg.se, but we will find out. I live in Oslo

I would split the crankcase and check if it is the crank that is at fault. You will have to split the crankcase anyway if it is the crank or the bearing that is the culprit.
And, you should look on the flywheel side for the serial number your crank has, you may be able to see it without having to take the crank out, but it is etched with a number.

Then we must take the steps according to what you find out.