High Quality Chainsaw Bars Husqvarna Toys Hockfire Saws

Stihl ms290/390 pop-up piston kit - To be sold soon??

beaglebriar

The Peanut Gallery
GoldMember
Local time
7:09 PM
User ID
377
Joined
Jan 1, 2016
Messages
19,171
Reaction score
109,492
Location
Warren Center, PA
Country flag
Was anything done to address excessive squish with these pistons? A friend was building one of these this morning with a regular cross piston (not the pop up) and he said that he had .050 for squish.... that's just crazy.
 

Dub11

Saw R skeery
GoldMember
Local time
6:09 PM
User ID
2014
Joined
Oct 21, 2016
Messages
34,438
Reaction score
146,064
Location
Kansas
Country flag
Was anything done to address excessive squish with these pistons? A friend was building one of these this morning with a regular cross piston (not the pop up) and he said that he had .050 for squish.... that's just crazy.
From what Ive read and seen its the luck of the draw on whos casting that day. And was it oem head that outta wack?
 

beaglebriar

The Peanut Gallery
GoldMember
Local time
7:09 PM
User ID
377
Joined
Jan 1, 2016
Messages
19,171
Reaction score
109,492
Location
Warren Center, PA
Country flag
From what Ive read and seen its the luck of the draw on whos casting that day. And was it oem head that outta wack?
I guess so. It's a lightly used oem cylinder, he did a welded pop up on it. Haven't got a report on how it runs yet.
 
Top