7310 handle bent?

Arborist Forum

Help Support Arborist Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

ChainLightning

Vintage Saw Stalker
Joined
Dec 13, 2011
Messages
996
Reaction score
184
Location
Upper Michigan
Can't really find any good pictures online to compare too, but does this handle/av mount look bent to you? The gap isn't level with the otherside and the saw sits a little crooked. If so, probably needs new springs? Thanks. 20220610_172702.jpg20220610_172710.jpg
 
On my 372 build this is also true.
The reason on the 372 copycat is the upper AV buffer spring (right side between the cylinder and front handle), this is what determines the angle on the engine versus the rear handle on the 372 at least.
But; the angles you show on your picture might not be entirely correct at the parts either, so what you need to do if you want this to be as true as possible is placing your sweet baby on flat and level work table first and ensuring it sits perfectly level on the table, perhaps use some shims under the bottom part of the front aluminum handle to get it perfectly level to the table.
Then you measure the guide bar seat/mount surface with an 90* angle guide between the table and the bar seat, it should be 90*. If not, you can adjust the length of the upper AV buffer spring by using an angle grinder if it's too long or shim it with washers if its too short. Looks to me it's too long.

I think if the reason is that your front handle is bent to the left it would probably not fit perfectly on to the saw if you screw it loose and then try to re mount it, but it could off course be quite possible that this is the cause.
 
On my 372 build this is also true.
The reason on the 372 copycat is the upper AV buffer spring (right side between the cylinder and front handle), this is what determines the angle on the engine versus the rear handle on the 372 at least.
But; the angles you show on your picture might not be entirely correct at the parts either, so what you need to do if you want this to be as true as possible is placing your sweet baby on flat and level work table first and ensuring it sits perfectly level on the table, perhaps use some shims under the bottom part of the front aluminum handle to get it perfectly level to the table.
Then you measure the guide bar seat/mount surface with an 90* angle guide between the table and the bar seat, it should be 90*. If not, you can adjust the length of the upper AV buffer spring by using an angle grinder if it's too long or shim it with washers if its too short. Looks to me it's too long.
Thank you for the info. That would be the spring that is on the cylinder correct? Would make sense as its pushing the handle bar out causing it too sit on a angle. If I remember right the spring does look bunched out. This saw has been apart to be ported, maybe they got the springs switched around. Or just incorrect from factory.
 
Thank you for the info. That would be the spring that is on the cylinder correct? Would make sense as its pushing the handle bar out causing it too sit on a angle. If I remember right the spring does look bunched out. This saw has been apart to be ported, maybe they got the springs switched around. Or just incorrect from factory.
echo7310.jpeg
I tried to use my expert drawing skills to illuminate the upper buffer spring...
Does it look paralell between the rear handle and engine at the underside?
 
Anyway, Echo don't do copycat quality so something is wrong.
Make sure that the porting dude haven't switched or misplaced the buffer springs before you attempt to modify the upper buffer spring. You should also consider the right side of the front aluminum handle is not bent by accident, it would need quite some force to do that though.
 
Just looked at my 7310 and it’s pretty straight, definitely doesn’t look like yours. I wonder if the spring broke on the right side. I really like the av on this saw in action but one quirk is the saw sags a little when you pick it up. Kinda like a saw with worn out rubber bushings. Once you start cutting it handles great, just the initial loading of the springs takes a little to set.
 

Latest posts

Back
Top