Pros and cons of base gakets

[mdavlee]

One extra point, I have a piece of flat timber with a large square of fine emery paper attached to it.
I always use this to make sure the base of the cylinder is nice and flush before I do a gasket delete.

Doesn't need much, just a light sand and check to make sure there are no high spots. Also gives a rougher surface for the sealant to grip

I use the flat on my vise and stick on sandpaper.

 

[Mastermind]

I use base gaskets on some saws.....it depends on the gasket material, and the thickness of the flange. No single solution to every instance in my mind.

 

[czar800]

I'm a 518 kinda guy. That said I really think it's like @mdavlee said it gets over thought.

@mdavlee ........ I just realized that I had not sent you those files.......

 

[czar800]

They've been sitting in my basement all this time……

Sorry for the thread hijack back to gaskets.

 

[Mastermind]

I like files too dot dot dot

 

[mdavlee]

I'm a 518 kinda guy. That said I really think it's like @mdavlee said it gets over thought.

@mdavlee ........ I just realized that I had not sent you those files.......

Haha it happens. I'm going to box up about 6 or 7 things today and hope I don't forget something.

 

[czar800]

I like files too dot dot dot

When I asked for Mike's address it was a federal prison? He gave me instructions to put it in a cake….

 

[Brewz]

Its late at night. actually early morning, and after a couple beers I am going to say no gasket!

Nothing better than a nice tight flange!

 

[Mastermind]

Its late at night. actually early morning, and after a couple beers I am going to say no gasket!

Nothing better than a nice tight flange!

Repped

 

[94BULLITT]

I thought motoseal was easy to clean up. Most of it scrapes off. What does not scrape off cleans up with carb cleaner. Someting like RTV is nasty to clean up.

Sent from my SPH-L710 using Tapatalk

 

[huskihl]

I've never noticed enough motoseal residue to worry much about cleaning it up. Wipe it off with carb or brake cleaner and smear a thin coat on

 

[Stump Shot]

Think it's been done enough to the older saws to reach a reasonable conclusion. It's the new breed of saws that I'm unsure of, going to be flexible as to an opinion on them for now.

 

[94BULLITT]

A wire brush works good on motoseal too.

Sent from my SPH-L710 using Tapatalk

 

[peter92]

How much gain on the transfer ports when base gasket is deleted , say on a .020 gasket , this is on a 395xp
What improvements are the ports to piston
Peter

 

[Mastermind]

How much gain on the transfer ports when base gasket is deleted , say on a .020 gasket , this is on a 395xp
What improvements are the ports to piston
Peter

I've not sure what you are asking exactly Peter. Do you mean how far do the transfer ports move in degrees of crankshaft rotation?

 

[peter92]

I've not sure what you are asking exactly Peter. Do you mean how far do the transfer ports move in degrees of crankshaft rotation?

yes i think thats what im asking , watched a timing wheel being used yesterday , so deleting the gasket must raise the ports, how does this benifit the running of the saw
Peter

 

[mdavlee]

yes i think thats what im asking , watched a timing wheel being used yesterday , so deleting the gasket must raise the ports
Peter

Raises intake. Lowers exhaust and transfers. .020" is about 1.5°

 

[Mastermind]

The change in port timing is pretty slight.......the increase in compression is the real benefit.

 

[peter92]

The change in port timing is pretty slight.......the increase in compression is the real benefit.

Thanks Randy ,
Peter

 

[Brewz]

Motoseal: