090G with 090 Jug

[jensen 32000]

I'm going to be rebuilding an 090 G. What are your thought on going with an actual 090 piston and jug?Thank You Mike

 

[JimL]

?? i thought they was the same?

 

[user 2993]

090G is 58mm, 090 is 66mm. Other than that, I have no idea if they are interchangable. Would be an interesting project, though.
A 137cc gear drive saw would be a pretty formidable thing.

 

[jensen 32000]

The clutch has six shoes, like an 090, but wet clutch. Might detract from the value, but I think an 090 should be 137cc. Mike

 

[Jacob J.]

The reason the 090G came with the smaller top end to save on stress to the gear-drive transmission. It takes a lot of beating in the course of transmitting power to the bar and chain. Putting the bigger top end on the gear-drive saw will shorten the life of the gears, needle roller bearings, and drive shafts. The 106cc top end has plenty of power for the gear-drive.

 

[jensen 32000]

I was afraid that would be one of the responses. It make sense, Thank You. Mike.

 

[Gypo Logger]

Hi Mike, Jacob makes some good points about the tranny. If we think about where those saws were used and the stress they were put under and the tranny still stood up, using the larger jug may be alright if you use 404 drive and don't cut rock imbedded driftwood with it.
John

 

[Bill G]

If you decide to go with the 106cc jug I have a new one with piston.

Bill