ms 461 woods port race thing

[tree monkey]

What are the rules for muffler for this saw Scott?

factory muffler with 80 present of the front intact, I think is what it is

 

[tree monkey]

tr is bottom fed like a 661

 

[cus_deluxe]

so ur saying why the dead spot in between transfers, even tho the bridge is only a couple mm wide?

 

[tree monkey]

the other side

 

[tree monkey]

so ur saying why the dead spot in between transfers, even tho the bridge is only a couple mm wide?

that's part of it

 

[cus_deluxe]

Hard to tell from pic, are the roofs of the transfers flat or or are you trying to open part of the primary first, instead of all at once?

 

[tree monkey]

stock piston

 

[paragonbuilder]

Trying to guess exactly where the piston sits in the bore, it appear that both front and rears are purging on the exhaust side of the openings.
The extra long trail on the rears, makes it appear that they have more velocity, open first?
The bridge is very narrow, yet there is quite a large space in the wash pattern.
I’m pondering why this may be...

 

[tree monkey]

Hard to tell from pic, are the roofs of the transfers flat or or are you trying to open part of the primary first, instead of all at once?

primary's open first, flat, all at once

 

[tree monkey]

Trying to guess exactly where the piston sits in the bore, it appear that both front and rears are purging on the exhaust side of the openings.
The extra long trail on the rears, makes it appear that they have more velocity, open first?
The bridge is very narrow, yet there is quite a large space in the wash pattern.
I’m pondering why this may be...

your starting to see what I see, yes why.

 

[wcorey]

what is this telling me?

That you'll be adding some JB weld to the outside corner of the upper primary's...?

 

[paragonbuilder]

your starting to see what I see, yes why.

Well first your previous post says the primaries open first, which means they should have the initial burst and thus more velocity..., so I’m wrong in that...

What I see is that possibly the mains need more taper toward the intake, they appear to be crashing into the wall and diverting more towards the center of the cylinder. Not really any room to bring them back though. Bridge is too narrow.

 

[Deets066]

your starting to see what I see, yes why.

Direction through the tunnel. Run water through it, I bet it shows what you are looking for

 

[tree monkey]

That you'll be adding some JB weld to the outside corner of the upper primary's...?

I think so

Well first your previous post says the primaries open first, which means they should have the initial burst and thus more velocity..., so I’m wrong in that...

What I see is that possibly the mains need more taper toward the intake, they appear to be crashing into the wall and diverting more towards the center of the cylinder. Not really any room to bring them back though. Bridge is too narrow.

primary's and mains are the same thing, just a different term, port nearest the ex.
there's turbulence in the port causing the fresh charge to go straight out the ex port. epoxy in the right place might help.
also opening the secondary's sooner might help

 

[paragonbuilder]

I think so



primary's and mains are the same thing, just a different term, port nearest the ex.
there's turbulence in the port causing the fresh charge to go straight out the ex port. epoxy in the right place might help.
also opening the secondary's sooner might help

I was wondering if epoxy would hold up in that environment? I suppose it constantly cooled by the fresh charge.
I also have some extreme heat jb here that is good for over 2000 degrees. I haven’t tried it yet though...


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[paragonbuilder]

What would an ideal piston wash look like? I’ve tried to make them even, but never really knew what they should look like.


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[tree monkey]

the stock piston tells me the problem has always been there, likely why the saw is being replaced

 

[wcorey]

I was wondering if epoxy would hold up in that environment? I suppose it constantly cooled by the fresh charge.

I actually was referring to building up the outside, so the corner of the tunnel can be broken through when redirecting the flow by grinding more angle to the front outside corner of the primary's.

 

[tree monkey]

What would an ideal piston wash look like? I’ve tried to make them even, but never really knew what they should look like.


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I want the wash equal to the port angled towards the intake. the secondary's look fair

 

[Fruecrue]