Steve W. wrote:

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.
Another possible solution is Belleville washers under the screws.
The screws may be stretching or the cylinder/plate is crushing under the
thermal cycling.

Jon