Got it, thanks! Rebuild and keep or replace with another model ? From what I am reading it looks like the are finicky and folks swap out to the HL63 or similar model carb.
Sounds good to me, I am willing to try to work with what I have. I will get the flywheel off and clean/adjust the points and try to start it up again. I need to fix the recoil as well.
www.arboristsite.com
Interesting, I have never had spit back with a tillitson.Here is a link to the McCulloch Carburetor thread over on AS, I can't seem to find one here.
McCulloch Carburetors
NOTE: Since the hack the photos were lost, I am trying to put this back together with some additional information I have picked up along the way. Legal Disclaimer - what I am about to post is based on my experiences and research. I am a relative newb on the whole matter as I have only been...
The Tillotsons are also guilty of "spitback", it is more a by-product of the short intake track and the speed at which the reeds close. This is information that Eccentric posted quite some while ago.
-Reed engine 'spit back' is caused by a 'leaking' reed that doesn't sit tightly closed at rest. Not true. 'Spit back' is the reversion that happens during the time period before the reeds slap closed after having swung open. Reeds don't open/close instantly (no matter how 'tight' they are at rest). Their opening/closing can be graphed with crank rotation (as can the intake port on a piston-port or disc valve engine). Reed engines that 'spit back' more usually have very short intake tracts (because they're most often in a horizontal cylinder layout that lends itself to a short intake track). The resulting shorter intake charge has less inertia to resist reversion (and therefore have minimal 'spitback').
Mark
I wonder why it's stainless steel chrome colored.
Here is a link to the McCulloch Carburetor thread over on AS, I can't seem to find one here.
McCulloch Carburetors
NOTE: Since the hack the photos were lost, I am trying to put this back together with some additional information I have picked up along the way. Legal Disclaimer - what I am about to post is based on my experiences and research. I am a relative newb on the whole matter as I have only been...
The Tillotsons are also guilty of "spitback", it is more a by-product of the short intake track and the speed at which the reeds close. This is information that Eccentric posted quite some while ago.
-Reed engine 'spit back' is caused by a 'leaking' reed that doesn't sit tightly closed at rest. Not true. 'Spit back' is the reversion that happens during the time period before the reeds slap closed after having swung open. Reeds don't open/close instantly (no matter how 'tight' they are at rest). Their opening/closing can be graphed with crank rotation (as can the intake port on a piston-port or disc valve engine). Reed engines that 'spit back' more usually have very short intake tracts (because they're most often in a horizontal cylinder layout that lends itself to a short intake track). The resulting shorter intake charge has less inertia to resist reversion (and therefore have minimal 'spitback').
Mark
Now theres something ive never seen.
Those things are neat! Can't be many out there.
If you need a carb for that 797 there is a nos flat back on ebay part#67265 that would probbly work on that saw if you want to go with a flat back carb.
