Terry Coombs wrote:
OK , so here's what I got . I have an older 18" Poulan Wild Thing chainsaw
. It has an angle plate between the carb and cylinder , it's apparent
purpose is to angle the carb up slightly . Problem area is where the plate
bolts to the cylinder . I can't keep the damn screws tight , and when they
loosen the saw just doesn't run because it's a massive vacuum leak . I've
tried red loctite , tried dry , and they just keep getting loose . Carb to
plate screws are fine , no problems there .
Fortunately I have 2 other FREE ! saws , so I can still cut firewood ,
but I'd like to get this one reliable , as it has the longest bar . Cuttin'
fool when it runs right , as are the others since I learned how to sharpen
chains . Very important tool if you heat with wood !


Steel/Aluminum with Heat/Vibration = Loose studs every time.


The fix would be two fold. One install the correct size heli-coil. Next
install studs into the heli-coils using Loctite 2620 (it will handle 640
degrees continuous Vs 450 for the common 266/272 versions)

Or if you don't want to do that. Cross drill the bolt heads, torque them
down and install safety wire so they cannot loosen.

--
Steve W.