Pioneer chainsaws

[CM76]

850 Pioneer questions

Hello all,

I have already made up a thread for my latest acquisition - a Pioneer 850 geardive saw, but thought it belonged in here as well.

Seeing as though this is my first Pioneer saw, I thought I would consult the Pioneer experts on a couple of points:

1) Are there any parts which are interchangeable between other Pioneer saws and the 850 model ? I have the parts saw which I decided to try and find some parts to make it complete again ( a big ask!!!), and thought that maybe some other parts from other models may fit ?

2) How popular were these geardrive Pioneers with timber fallers ? I know that the 600 series saws were highly regarded machines, but have heard little on the geardrives.

Here are some pics of the parts saw in its current state.

Regards,

Chris.

 

[P62]

850

The 850 Gear Drive is the same saw as a 750. The 750 is a direct drive version.
Earlier models were a 700H and 700G (G for Gear drive).
An 850 or 750G gear drive would be a rare find in this .
Looks like the gear drive part of your parts saw is complete.

 

[CM76]

The 850 Gear Drive is the same saw as a 750. The 750 is a direct drive version.
Earlier models were a 700H and 700G (G for Gear drive).
An 850 or 750G gear drive would be a rare find in this .
Looks like the gear drive part of your parts saw is complete.

Thanks for the info Jeff. I will keep a look out for any 750's that may come to light in the future - although I suspect that I won't be the only one looking!

Regards,

Chris.

 

[Goball]

Pioneer 550

Can anyone help with the parts listed below to complete this project. Thanks

• Tillotson Carb HL108A
• Air Filter Assy
• Muffler Cover
• Spark Plug Cover
• Gas Cap
• Handle Cover

 

[cbfarmall]

Round 2 for the old 700. Now it has a 750 cylinder, new piston and rings, new air filter and a 20" bar. Seems much peppier. Link

Chris B.

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[WesternSaw]

Chris

That ol Pioneer sounds good to me!
Lawrence

 

[WesternSaw]

GoBall

Can anyone help with the parts listed below to complete this project. Thanks

• Tillotson Carb HL108A
• Air Filter Assy
• Muffler Cover
• Spark Plug Cover
• Gas Cap
• Handle Cover

Any luck checking ebay for parts?
Lawrence

 

[kev1n]

Hello pioneer fans, there's some nice 20" pioneer bars that just popped up--- 404 .058 on ebay for 32.95 shipped. Looks like a great deal, I had to buy one.
Kevin

 

[DSS]

PIONEER CHAINSAW 20" BAR NEW - eBay (item 230589528725 end time Mar-24-11 19:42:29 PDT)

I saw those on there. Look like nice bars. 20'' is kinda short for .404 chain ???:monkey:

 

[roncoinc]

600 lives !!

Finally got to the 600 yestday.
no spark.. nobody told me the flywheel nut was left thread ! was working it back and forth when it came loose the wrong way
cleaned the points etc.. resulted in spark.. mix down the carb and off it went !! till it ran out.
fuel lines ?? LOL !! black mush. guess tygone get it going ok.
now to look up the thread on the carb rebuild,unless somebody has the link handy ?? used to be a sticky..
this is what it looks like now..

inspecting further i found the clutch bearing awfull dry and not nice..
how do i get to it to give it some atention ??

 

[pioneerguy600]

Finally got to the 600 yestday.
no spark.. nobody told me the flywheel nut was left thread ! was working it back and forth when it came loose the wrong way
cleaned the points etc.. resulted in spark.. mix down the carb and off it went !! till it ran out.
fuel lines ?? LOL !! black mush. guess tygone get it going ok.
now to look up the thread on the carb rebuild,unless somebody has the link handy ?? used to be a sticky..
this is what it looks like now..

inspecting further i found the clutch bearing awfull dry and not nice..
how do i get to it to give it some atention ??

Got yourself a project there Ron. Good thing I got home last evening. LOL
First the clutch cover pries off, try going around the circumference prying out a little at a time, it will eventually pop off. Remove the nut and then you will need a puller to pull the clutch off, once its off then the clutch drum will slide off but the bearing is pressed in so it stays in the drum, if it is just dry oiling it will probably be ok. If it needs to be changed then a bearing house can get the Torrington replacement easily, I get them all the time. You have to press or drive the bearing out, most important to only press on the end of the bearing shell with the letters/numbers on it, if the other end is pressed on it will collapse and ruin a new bearing.
As for the carb I will see if I can locate the carb thread Gary did for the Tillotson HL.
http://www.arboristsite.com/chainsaw/64450.htm

Pioneerguy600

 

[cbfarmall]

Finally got to the 600 yestday.
no spark.. nobody told me the flywheel nut was left thread ! was working it back and forth when it came loose the wrong way

So far, Pioneer is the only company I've run across with left-handed flywheel nuts and right-handed clutch nuts. The latter is pretty common, the former not at all.

Chris B.

 

[pioneerguy600]

So far, Pioneer is the only company I've run across with left-handed flywheel nuts and right-handed clutch nuts. The latter is pretty common, the former not at all.

Chris B.

You gots to be a Pioneer mechanic to know what`s what on them...LOL
Pioneerguy600

 

[pioneerguy600]

I posted some picts of the big redwoods I came across on my trip out to California if anyone is interested.

http://www.arboristsite.com/great-outdoors/165699.htm

Pioneerguy600

 

[roncoinc]

Got yourself a project there Ron. Good thing I got home last evening. LOL
First the clutch cover pries off, try going around the circumference prying out a little at a time, it will eventually pop off. Remove the nut and then you will need a puller to pull the clutch off, once its off then the clutch drum will slide off but the bearing is pressed in so it stays in the drum, if it is just dry oiling it will probably be ok. If it needs to be changed then a bearing house can get the Torrington replacement easily, I get them all the time. You have to press or drive the bearing out, most important to only press on the end of the bearing shell with the letters/numbers on it, if the other end is pressed on it will collapse and ruin a new bearing.
As for the carb I will see if I can locate the carb thread Gary did for the Tillotson HL.
http://www.arboristsite.com/chainsaw/64450.htm

Pioneerguy600[/QUOTE]

Tnx Jerry, ( nice pix btw ! )
read gary's thread and cant find the repair kit he used..this carb is a HL22A..
i wonder if just the gasket kit would be enough ?? havent taken the carb apart yet.
has no hi speed adjustment..front of carb has a finger adjutment needle that is 1/4 turn out.
knew you were due back soon is why i started this

 

[roncoinc]

just read that a RK-88HL kit will fit ??
what do you use Jerry ?

 

[kev1n]

Question for the pioneer guru's, what is a pioneer p50 case made from? I'm going to try to weld up a big hole in the tank. It looks like aluminum to me.
Thanks Kevin

 

[pioneerguy600]

just read that a RK-88HL kit will fit ??
what do you use Jerry ?

That kit will fit 99% of the Tillotson HL`s and includes needle and seat, metering lever and seat seal so its a full rebuild kit. I came across a couple dozen original Tillotson HL carb kits recently and boy are they nice to work with and they seem to make these old saws run better than the cheaper aftermarket kits do. Not to say there is anything really wrong with them but the real McCoy is always a tad better. I will just add, that finger adjustment is the H side adjuster, made that way so that it could be adjusted to suit the need at the time, in long prolonged cuts it was adjusted out to run rich, for short duration limbing/small wood cuts it could be leaned out a tad to increase chain speed.
Pioneerguy600

 

[pioneerguy600]

Question for the pioneer guru's, what is a pioneer p50 case made from? I'm going to try to weld up a big hole in the tank. It looks like aluminum to me.
Thanks Kevin

Its Magnesium/aluminum alloy, got argon gas?
Pionerguy600

 

[kev1n]

Its Magnesium/aluminum alloy, got argon gas?
Pionerguy600

Yes, my friend does at work. Is that the best way to weld it. I'm on the lookout for some 1/16" aluminum sheet to use.
Is 50/50 argon/helium tig weld the way to get this job done?
Thanks