Is this notch significant?

[Joseph W Santora]

I was just about to slather on the sealant and assemble a 353 and I noticed this notch. There's a corresponding notch on the old gasket but no channel on the bottom of the cylinder. I do remember reading somewhere that when you delete the base gasket you need to make a channel for the impulse to get out. Am I missing something?

 

[pioneerguy600]

It depends on how the carb receives the impulse signal. Some get it through a separate impulse line while others get it through the carb connection to the cylinder. How does your carb get the pulse or signal.?

 

[John Stryker]

The impulse comes through the round hole below the intake port through to the inside of the cylinder, as I remember it. That rubber nipple on the intake manifold can get melted or squashed closed, so you should inspect that before you assemble it carefully.

 

[Benwa]

Older Husqvarna saws like the 51/55 got their impulse through the bottom of the cylinder like you're talking about. Your current cylinder in question does not. A lot of "like parts" are used between different saws to save cost. Your cylinder should get its impulse from inside the cylinder. Not a great picture, but it's how/where yours should get its impulse. I say slather away.

 

[gumneck]

All I need is this chainsaw
And that other chainsaw
And those chainsaws over there
And the chainsaws
in the other room
And.............

I like your take on the "Jerk", just thinking about it cracks me up! Thanks

Older Husqvarna saws like the 51/55 got their impulse through the bottom of the cylinder like you're talking about. Your current cylinder in question does not. A lot of "like parts" are used between different saws to save cost. Your cylinder should get its impulse from inside the cylinder. Not a great picture, but it's how/where yours should get its impulse. I say slather away.
View attachment 952302

 

[Joseph W Santora]

Slathering away, thanks.

 

[82F100SWB]

Your 353 cylinder gets the impulse from the cylinder wall, however, the 346 cylinder uses that notch.

 

[Benwa]

All I need is this chainsaw
And that other chainsaw
And those chainsaws over there
And the chainsaws
in the other room
And.............

I like your take on the "Jerk", just thinking about it cracks me up! Thanks

It's a classic. I'm a sucker for those movies haha