roncoinc
Official Stihl Disser
Current project is a badly scored 350.. bought one of the aftermarket P&C kits for it and was very satisfied for the price..
with some help from here gave it a mild port job and started putting it together..
installing the intake boot i found the rubber nipple in the boot did not want to seat all the way in the hole in the cyl..a little drill work of the proper size fixed that,something to be aware of..
One of the other things was the base bolt holes were not perfect,almost felt like the bolts were stripping,a little work on the holes with an ols chain file fixed that..
the worst thing was the rubber intake mounting to the cyl..after snapping the plastic clamp close i noticed a LOT of loosness ! i mean possible air leak kind of loose.. could be the reason the 350 melted down to start with ??
on my 357 i replaced the plastic clamp with the metal one husky has..
this one is a little differant so with a dremel and a cutoff wheel,bending the rubber boot out of the way i eliminated it so i can use a real clamp..not a screw type radiator hose clamp but a real one like the 357 replacement clamp..now i can seat the boot properly,all the way on and clamp it tight..
may be a spot to check for loosness if you have a 350..
heres a pic if the boot with it cut off..
Another thing i found was the groove for the impulse was almost non existant,again,the dremmel with a small bit to make sure pressure could pass..
picture of what i mean..
the only other stuff i have found so far,tnx to "search" and whoever posted it was clearance of the port bulge on the clutch side..the cyl touches so again,dremmel took care of that..
before and after pix..
of course i eliminated the limiter tabs on the carb and did a muffler mod..
that is all i have found so far that may be a little glitchy putting an aftermarket 346NE cyl on a 350... the rest of it looks prety straight foreward..
I want to thank everybody for the info i found using the "search" function relating to this project and for responding to the thread i had asking for porting advice on this cyl..
with some help from here gave it a mild port job and started putting it together..
installing the intake boot i found the rubber nipple in the boot did not want to seat all the way in the hole in the cyl..a little drill work of the proper size fixed that,something to be aware of..
One of the other things was the base bolt holes were not perfect,almost felt like the bolts were stripping,a little work on the holes with an ols chain file fixed that..
the worst thing was the rubber intake mounting to the cyl..after snapping the plastic clamp close i noticed a LOT of loosness ! i mean possible air leak kind of loose.. could be the reason the 350 melted down to start with ??
on my 357 i replaced the plastic clamp with the metal one husky has..
this one is a little differant so with a dremel and a cutoff wheel,bending the rubber boot out of the way i eliminated it so i can use a real clamp..not a screw type radiator hose clamp but a real one like the 357 replacement clamp..now i can seat the boot properly,all the way on and clamp it tight..
may be a spot to check for loosness if you have a 350..
heres a pic if the boot with it cut off..
Another thing i found was the groove for the impulse was almost non existant,again,the dremmel with a small bit to make sure pressure could pass..
picture of what i mean..
the only other stuff i have found so far,tnx to "search" and whoever posted it was clearance of the port bulge on the clutch side..the cyl touches so again,dremmel took care of that..
before and after pix..
of course i eliminated the limiter tabs on the carb and did a muffler mod..
that is all i have found so far that may be a little glitchy putting an aftermarket 346NE cyl on a 350... the rest of it looks prety straight foreward..
I want to thank everybody for the info i found using the "search" function relating to this project and for responding to the thread i had asking for porting advice on this cyl..
