Super ez auto

[Deleted]

Hey guys.  I'm working on a late model super ez auto.  It's acting like it has an air leak and I suspect i found the problem.  My question is the gasket.  On the parts list it is called the cylinder gasket, part number 65018. It's a one piece gasket for the cylinder and for where the handle/carb housing attaches to the saw.  Do I have to remove the cylinder or can I just cut the top half of the gasket and use that?   Any help would be greatly appreciated. 

[edju1958]

I had a couple SEZs where I didn't want to remove the cylinder,it only needed the top portion of the gasket (made my own gasket) & it worked out fine.I also did the same on a SXL.

[blythkd]

While replacing the upper half of the base gasket is technically possible, by cutting a new gasket, that does nothing for an engine air leak. It just stops dirty air from being drawn into the carburetor chamber.

What am I missing? Are you working on the intake manifold as well? Is that where your engine air leak was?

[Deleted]

blythkd, thanks you for your observation. The thought never crossed my mind that it won't do anything for an engine air leak. I already replaced both crank seals. The engine starts to bog when it gets hot and sometimes runs at higher rpm when started. Maybe I'm missing something. I use fresh, ethanol free fuel and Amsoil 50:1. I'm not sure what I should be looking for.

[edju1958]

Check the nuts that hold the cylinder on to make sure they're tight.If loose it could be sucking air there.If they're not loose,the cylinder gasket could be bad & sucking air there.You might end up replacing the entire base gasket,not a difficult job,but rather time consuming.

[Deleted]

Thanks Ed. I'll see what I can do.

[blythkd]

Good point on the cylinder nuts, they are prone to coming loose. Look that intake manifold over really well too. It's kind of a bakelite type material and has been known to crack, usually more common around that single screw on the lower right side.