ms 461 woods port race thing

[Fruecrue]

Are the crank lobes dead center in the case?

 

[tree monkey]

looks good to me

 

[Fruecrue]

Did your dog chew on the connecting rod?

 

[paragonbuilder]

I don't think I have any shims but I do have a box of plugs

I’ve doubled up on plug washers to give the extra compression needed to index where I wanted, but It will lift the plug a bit. But if you consider what you took out of the squish band, it may be back approximately where the factory intended.

 

[paragonbuilder]

Are the crank lobes dead center in the case?

Where were you headed with this question? [emoji848]

 

[Stihlbro]

This is what I’m seeing. It’s like the mains are colliding the center and working to the exhaust port. Not sure if I can explain it but the secondaries look to merge and go up. The mains seem to collide, maybe at a lower pressure and taking the path of least resistance towards the exhaust. Not sure here.... just an opinion.

 

[Fruecrue]

Where were you headed with this question? [emoji848]

Just thinking the lobes could affect flow into bottom fed transfers.

 

[tree monkey]

Where were you headed with this question? [emoji848]

could effect how the lowers feed

 

[EvilRoySlade]

View attachment 107025


looks good to me

In that pic it looks like the pocket on the right is cast deeper into the case and follows the curve of the crank.

 

[tree monkey]

View attachment 107026

This is what I’m seeing. It’s like the mains are colliding the center and working to the exhaust port. Not sure if I can explain it but the secondaries look to merge and go up. The mains seem to collide, maybe at a lower pressure and taking the path of least resistance towards the exhaust. Not sure here.... just an opinion.

yes

 

[Stihlbro]

It’s misleading as the chamber is cleaner in the same area on the piston towards the exhaust.

 

[EvilRoySlade]

Are the lobes symmetrical on the 461. I know some saws have different thickness and even shape of the lobe.

 

[tree monkey]

In that pic it looks like the pocket on the right is cast deeper into the case and follows the curve of the crank.

transfers feed front and center. under where the piston skirt in in the pic. those pockets don't do anything

 

[tree monkey]

View attachment 107027
It’s misleading as the chamber is cleaner in the same area on the piston towards the exhaust.

yes

 

[paragonbuilder]

View attachment 107027
It’s misleading as the chamber is cleaner in the same area on the piston towards the exhaust.

Index the plug and try again?

 

[tree monkey]

 

[Stihlbro]

Yeah, I think so. It’s more work for Scott but I think so.

 

[tree monkey]

is it posable the chamber is full, and part of the wash happens on the up stroke when the exhaust port is closing?

 

[Canadian farm boy]

This is the ms461 transfer inlet. This is one of my pictures and NOT a picture of Scott's saw. Just showing what it looks like for those who haven't seen one before.

 

[tree monkey]

epoxy in the transfers now, will be testing again in the morning