I am putting a new mahle 357 piston and cylinder on my 359 saw.
The new piston does not slide on the connecting rod. The old rod is about 0.050" to large. I am filing out the piston to fit. My question is how much clearance do I need.
Thanks Eric
Eric:
This information is for Eric and any others that plan on exchanging the 359 cylinder to a 357 cylinder. Husqvarna changed the width of the small end of the con-rod on the 357 from 13mm to 15mm beginning with ser.#02-0700001. The 359 con-rod was always 15mm, so if you are converting a 359 to 357 you will need the following parts to eliminate any fitment problems.
In order to further improve reliability, and improve the compatibility of other components with model
359, the width of the connecting rod has been increased from 13 mm to 15 mm.
NOTE! These parts are not fully interchangeable with those on earlier models. Please see below.
New part no. Description Excl. part no. Remark
537 21 92-01 Crankshaft assy. 503 93 31-71 *
537 21 95-02 Cylinder assy. 503 91 98-71 *
537 21 96-02 Piston assy. 503 92 04-71 *
503 25 56-01 Gudgeon pin bearing 15 mm 501 86 18-01 13 mm *
*still available as spare part for earlier versions of saw
Introduced from serial number: 357 020700001
Hope this clears up any confusion with the problems like Eric encountered!