more jms

[stihl_head1982]

Burn it

 

[Moparmyway]

FYI to everyone my other 395 had same markings in same exact spots as this one, so it is normal and probably part of the tooling/casting process.

No way ........ more like probably a result of splitting the case and removing the crank to replace bearings, then re-installing.

Mason, I've got a brand new, untouched 395 ......... how much do you want to bet that mine doesn't have those marks ?

 

[tree monkey]

661 base

 

[TreeLife]

No way ........ more like probably a result of splitting the case and removing the crank to replace bearings, then re-installing.

Mason, I've got a brand new, untouched 395 ......... how much do you want to bet that mine doesn't have those marks ?

Disassemble it and check it out amigo

 

[T.Roller]

View attachment 85404

View attachment 85405

661 base

Whose is that

 

[Moparmyway]

Disassemble it and check it out amigo

I could, except that I've already been in a bunch of them and have not seen those marks.
I will, if Mason wants, after I'm finished with the stuff that I've got on my bench

 

[CJ Brown]

I don't know why but I love it when Scott posts workshop pics. I think it reminds me of the good times I had workin' in the old Stephens-Adamson machine shop.

 

[TreeLife]

Not to be a richard, but can one of you fine gentleman circle said mark in the formentioned picture? With little sleep in recent days I'm betting I might be missing what we are looking at.

Also, how can you guys tell the bearings are crap from the video? Not being critical, literally asking. I'm a little hard of hearing, maybe I can hear it with my ear buds in?

 

[Wonkydonkey]

Not to be a richard, but can one of you fine gentleman circle said mark in the formentioned picture? With little sleep in recent days I'm betting I might be missing what we are looking at.

Also, how can you guys tell the bearings are crap from the video? Not being critical, literally asking. I'm a little hard of hearing, maybe I can hear it with my ear buds in?

I believe it's this is the mark in question,

 

[TreeLife]

Ahh, on the counter weight on the crank shaft. As long as it didn't get peened over and there is something touching the cases I probably wouldn't raise a stink over it.

 

[paragonbuilder]

View attachment 85404

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661 base

This one was leaning forward a bit, rather than sideways Scott?
Is that Bradleys that Jason did?


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[super3]

FYI to everyone my other 395 had same markings in same exact spots as this one, so it is normal and probably part of the tooling/casting process.

Nope.

I been through a couple dozen of these saws along with a new out of the box yesterday.

That is not an OEM knotch.

 

[tree monkey]

This one was leaning forward a bit, rather than sideways Scott?
Is that Bradleys that Jason did?


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yes

it would be safe to use as is

 

[Deets066]

yes

it would be safe to use as is

That's one way to keep the intake duration down.

 

[huskyboy]

Nope.

I been through a couple dozen of these saws along with a new out of the box yesterday.

That is not an OEM knotch.

I figured it was from his method of splitting the cases. Not suprised.

 

[drf256]

View attachment 85404

View attachment 85405

661 base

This one was leaning forward a bit, rather than sideways Scott?
Is that Bradleys that Jason did?


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That's one way to keep the intake duration down.

FWIW,

Jason was sanding jugs assymetrically on purpose on certain saws. Front to back, for exactly the reason Deets brought up + transfer height. His theory was intriguing and wasn't necessarily that hairbrained. If it had been done on a mill precisely, it may have worked out just fine.

Like most things, it's was the execution of his ideas that was the problem (and the end result).

 

[paragonbuilder]

FWIW,

Jason was sanding jugs assymetrically on purpose on certain saws. Front to back, for exactly the reason Deets brought up + transfer height. His theory was intriguing and wasn't necessarily that hairbrained. If it had been done on a mill precisely, it may have worked out just fine.

Like most things, it's was the execution of his ideas that was the problem (and the end result).

Unless I'm still half asleep... I don't believe that would work. Piston rides in the bore so the base being cut on a forward lean would not effect timing at all. It would simply lower the jug timing wise, half of the distance of the difference between front and back.


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[drf256]

Unless I'm still half asleep... I don't believe that would work. Piston rides in the bore so the base being cut on a forward lean would not effect timing at all. It would simply lower the jug timing wise, half of the distance of the difference between front and back.


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Baffles me a bit too. Never tried myself.

I just know that these motors are a puzzle and very often things don't turn out like one would think.

I agree with you, the piston crown is still perpendicular to the bore. Jason said it made a difference, for what that's worth.

 

[Deets066]

I think it would work, has to

 

[paragonbuilder]

I think it would work, has to

Explain please.


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