Chainsaw Repair
Husqvarna - Stihl - Poulan - Jonsered - Dolmar chainsaws and more => Stihl => Topic started by: Jason K on July 18, 2015, 07:16:42 pm
-
Does Stihl make a MS390 short block and what would I need change it to the MS390. If so what does Stihl get for a short block
Thanks
Jason
-
If the crank and engine pan are good in your 290 than all you would need is the 390 piston and cylinder. Mako is a good aftermarket piston and cylinder for the 1127 series saw.
-
Its just a plug and play situation. The MS390 cylinder is just like the MS290 on the outside as far as everything being in the same place.
This is a very common swap.
-
Ok, Thanks guys. Should I install new bearing too if so what one is the ones that does not have the platic roller cage. Please let me know part numbers too.
Thanks
Jason
-
Put new bearings and seals in
-
9639 003 1743 seal part number
The bearings are 6203 both pto and fly side are the same.
-
What Stihl calls the "pan" and us normal folk call the bearing cap will be distorted. I put some 320 wet or dry sand paper on a sheet of glass and level the surface of both the bearing cap and the cylinder before putting on a thin coat of Dirko and assembly.
-
I will do that 660. I just more power. Thanks for the part numbers. I want to make sure. The Stihl dealer said $225 p&c for the MS390. I am finally come to the end to of my projects. :'(
Jason