Pioneer/Partner p42hp build

[p61 western]

Excuse my ignorance, just tryin ya learn here.. is the case gasket the only thing that separates mix and oil tank?

Yep pretty much. They are a pretty simple yet good design.

 

[kingOFgEEEks]

That's an awesome saw.

As far as porting theory goes, I have lots of questions. Which transfers open first? Do the rears open, to blow out the spent charge, and then the primaries and secondaries open to bring in fresh charge?

There's a lot going on in that jug. Makes you wonder what they would be doing if they had survived till today.

 

[p61 western]

That's an awesome saw.

As far as porting theory goes, I have lots of questions. Which transfers open first? Do the rears open, to blow out the spent charge, and then the primaries and secondaries open to bring in fresh charge?

There's a lot going on in that jug. Makes you wonder what they would be doing if they had survived till today.

Maybe @jacob j. Has put a wheel on one, but I have not yet. In the near future when I get some more time I will. It sure would be neat to see what they would have been doing today. They were pretty ahead of their time back then. Heck in 1974 they had come out with the bottom fed quad port.

 

[jacob j.]

I put a degree wheel on a P-61 years ago and wrote the numbers down but of course they're long gone and I can't remember what they were. The exhaust port is this series is wide and flat, similar in respect to other saws of that era like the 038 Magnum. I know the upper fifth and sixth transfer openings in the P-45 jugs are narrow and open at pretty much same time as the main transfers. The boost port in the P-655 jug opens just after the main transfers.

Pioneer was way ahead of their time - they had pretty much the best anti-vibe when the P-41/P-61 saws came out and with the Boyeson two-stage reeds, they'd turn a long bar very well in soft woods. My dad's favorite set-up in the mid-late 70's was a P-61/62 with a 42" bar for felling, and a 36" bar for bucking. I think at one point he had 15-16 P-61/62/655 saws.

 

[cgraham1]

I’m gonna get a 42” for my P-60 when I get it back... then I need a 125 and I’ll be set.

 

[p61 western]

Got the chain break on and a new bar.

 

[AlfA01]

Got the chain break on and a new bar.View attachment 163521

That looks super nice VP.

 

[p61 western]

That looks super nice VP.

Thank you Dan.

 

[Czed]

Got the chain break on and a new bar.View attachment 163521

Your welcome

 

[redlight066]

Awesome build. Thanks

 

[DrewUth]

Whats the difference between the P42 and the P40-41? I have a P40 but I hardly see them mentioned anywhere.

 

[p61 western]

Whats the difference between the P42 and the P40-41? I have a P40 but I hardly see them mentioned anywhere.

Not a whole lot really. The p40 and p41 have different ignition systems. There was early p40 and late with some minor differences. Good strong running 4 cube saw. They are a bottom fed quad transfer cylinder. Some of the p42 saws had the 6 transfer set up.

 

[jacob j.]

Not a whole lot really. The p40 and p41 have different ignition systems. There was early p40 and late with some minor differences. Good strong running 4 cube saw. They are a bottom fed quad transfer cylinder. Some of the p42 saws had the 6 transfer set up.

Were those the P42HP? I've seen quite a few of those and most had the "High Performance" decal on the side of the top handle frame.

 

[p61 western]

Were those the P42HP? I've seen quite a few of those and most had the "High Performance" decal on the side of the top handle frame.

Yep exactly I just haven't put the decals back on mine yet. There was a cb model witch was a base model more or less, and no 6 transfers. Then there was the cbw that was like the old western models, and had the best they had to offer at the time. Those usually had the 6 transfer top ends. If the saw doesn't have the id tag then it's just a guessing game.

 

[Drptrch]

I’m gonna get a 42” for my P-60 when I get it back... then I need a 125 and I’ll be set.

Clint, what color foot pad were you needing ??


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[cgraham1]

Clint, what color foot pad were you needing ??

Preferably dark Green.

 

[Drptrch]

Preferably dark Green.

Mite have one for ya. I shoot some pics tomorrow


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[sawfun]

Whats the difference between the P42 and the P40-41? I have a P40 but I hardly see them mentioned anywhere.

Acres shows the P45 at 72cc vs 68cc for the P40 - 42. My P46 has the boost ports and K & N air cleaner setup with full wrap. Does anyone know if they came that way originally?

 

[old 040]

Got the chain break on and a new bar.View attachment 163521

Very nicely done, have you run it in wood at all?

 

[p61 western]

Acres shows the P45 at 72cc vs 68cc for the P40 - 42. My P46 has the boost ports and K & N air cleaner setup with full wrap. Does anyone know if they came that way originally?

Acres is right about the p45, but the p40-42 is actually just under 66cc. I think you mean your p45 right? It's very possible your saw came with the K&N set up originally. They started using that set up after mount st Helens erupted. The ash was going right through the filter system, and dusting top ends. If you can share a pic of your saw.