Chainsaw Repair

The other day I was taking the springs from a 372 tank. The front spring came off easily but the rear one would not budge.

I had a pair of Vice Grips with round jaws for pipe and I could put a half turn on the spring and it would not come off.

The design of the tank keeps you from turning it more.

I took a punch and banged on the end of the spring that is against the tank and the spring still would not move.

So I put all the unwrap pressure I could with the Vice Grips from the outer end while I banged on the end at the tank with the 1/4" punch and hammer.

"Bang" - It came loose.

The front spring had a black insert and the rear spring had a medium blue insert.

When removing the tank, don't forget to remove the travel limiter pin from the clutch area?

 

 If it had locktight on it a little heat helps.   Steve

The spring itself is threaded on a plastic bolt that hold spring on tank.
NO Heat! It is a bad idea...

If it is really stuck remove tank completely so you get better room to hold as you turn.
I never needed any special tools for these yet..
 

With all the 362 365 372 I have redone I have never used a special tool for anything. Never had to use anything speical to remove the springs on tanks to replace etc.  I even got to where I could split cases and have crankshafts removed in 30mins.