Author Topic: McCulloch PM 1000 Partner P100  (Read 630 times)

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Offline Al Smith

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McCulloch PM 1000 Partner P100
« on: November 03, 2015, 07:50:37 pm »
The only reason I got this thing is the fact at least in this area it's rather rare .In my life time I've seen less than half a dozen .3 or 4 that ran and a few that did not .

It was in need of some work when I got it.The anti vib system had broken the tabs off the casting at the front part of the lower handle .Somebody did a hill billy fix with a piece of perforated metal strapping and hose clamps and JB weld .

I did a redneck fix with aircraft grade aluminum plate and M5 button head cap screws .Had to make a new dampner in the handle .Works fine

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Offline Al Smith

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Re: McCulloch PM 1000 .Partner P100
« Reply #1 on: November 03, 2015, 07:57:44 pm »
Next up is the air filter .It had a clip on type of flock filter with a large portion missing .Another tempory fix was bolting on 80 micron screen wire .That would have worked butI found the more modern filter from a Partner P700/P7000.

Because of the way it's made I had to fabricate some studs to mount it.Redneck again ,M5 threaded rod and nylon lock nuts .

The cylinder and piston are clean as a pin so evidently it doesn't seem to be damaged .It has an eyebrow  exhaust port which makes it easier to pull over

Offline Al Smith

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Re: McCulloch PM 1000 .Partner P100
« Reply #2 on: November 03, 2015, 08:09:27 pm »
Now the oiler which damned near drove me nuts .First  I had to figure out how the thing worked .

It's a crankshaft operated rotary driven internally  from a worm gear inside the crankcase .If the saw is running it's pumping oil or should.It didn't .

Evidently the oil flows through a manual oiler which is just a piston with an o-ring and a pair of metal reed type check valves .New o-ring still no oil .Pulled the rotary pump apart .installed a new o-ring ,no oil .Took the check valves off ,cleaned the mating surface of the pump and checks,primed it,one little squirt .Now I'm pizzed .

So I noticed a plug in the front portion of the rotary,shown in the photo .Out came the plug ,squirted a bunch of oil in it,started the saw.My Lawdy it blew oil like old spindle top .One more victory

Offline Al Smith

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Re: McCulloch PM 1000 .Partner P100
« Reply #3 on: November 03, 2015, 08:19:12 pm »
Of course  rebuilt the carb and defeated that rattle ball governer gizmo with a wad of aluminum foil .

It takes either Mac 10 series bars or Husqvarna .If anybody uses the Husky bars you either have to modify the Mac plates or use the size as Husky 2100 which are far cheaper than the hawks try to fetch on flea bar .Like less than 15 .Randys engine service ,Ohio .

Problem with Mac bars is it takes an extra driver or two but not as much as the driver count for Husky or Stihl .I'm just going to use the Husky for the time .

Must have taken me 4-5 months to get this far as time is one thing I have very little .It starts easy and runs strong and that's what I was after

Offline Cut4fun .

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Re: McCulloch PM 1000 Partner P100
« Reply #4 on: November 04, 2015, 12:56:50 pm »
Another good ole Redneck save. So you sink it in a cut yet?
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Offline wmbritne

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Re: McCulloch PM 1000 Partner P100
« Reply #5 on: November 04, 2015, 06:09:31 pm »
Info on your saw, I have been running same saw for 25 years.

http://macbobaust.com/pm1000a.html

Offline Al Smith

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Re: McCulloch PM 1000 Partner P100
« Reply #6 on: November 04, 2015, 06:42:23 pm »
Yes I did make a few cuts with it .First with a 32" before I rebuild the carb .It faltered a bit .After I rebuilt the carb and defeated the governor it did much better ,24" that time .The oak was close to 30" I suppose .

It had sat not started for about two weeks and I fired it up night before last after I took the pictures .4 pulls .

Offline mcbob

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Re: McCulloch PM 1000 Partner P100
« Reply #7 on: November 05, 2015, 04:23:18 pm »
And they respond well to a few mods
I am a idiot so my pics disappeared.

Offline Al Smith

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Re: McCulloch PM 1000 Partner P100
« Reply #8 on: November 05, 2015, 06:38:19 pm »
Just in casual observation one thing it could stand is a little wider exhaust port .It's the exact bore and stroke of a Husqvarna 2100 but doesn't in my opinion have enough port size for it's displacement  .

Then again thinking about it, if it was governed for the 8,500 as stated the porting would support that speed .I have no doubt it could easily crank out over 11,000 with very little work .

As it stands now for what I want it to do it has plenty enough power without doing anything .I did however pull the spark arrester which is an interesting way to do an arrester  .This leaves a baffled muffler with the baffle only on one side and now two aprox. 5/8" ports on both the baffled and unbaffled sides .

Offline Al Smith

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Re: McCulloch PM 1000 Partner P100
« Reply #9 on: December 14, 2015, 07:23:53 pm »
I did use this thing a couple weeks ago on what was left of a 36" diameter one time 100 foot ash the wind blew the top out of .Good sized ash. Cord and half of firewood and a thousand board feet of saw logs .

It appears to me it might be do for a set of rings .Nearly 100 cc's of saw should have been able with a 24" bar to not hardly slow down buried .I had to finish the job with a souped 038 Mag that didn't falter .

Winter coming on ,back shelved for a while on this one .

 

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