MCCULLOCH The official McCulloch thread

[edju1958]

I finished up on my latest PM 10-10 today.I went to take the old fuel line off the carb & it broke in half just by putting a pliers on it.I guess that's why it had fuel in the air box.I tried one of those ProLine fuel lines & filter & it seemed to fit snugly in through the tank.The saw fired right up after installation.
Then I tore the original recoil apart again & had to shine up the spindle with emery cloth & run a file across the pulley to remove the corrosion.Of course the recoil spring had to come flying out,just as well as it needed cleaning too.I got it back together & it works great now.

 

[Scott Kelsey]

Hoping someone here will help me out as I did some searching, but can not find what I am looking for.

I recently purchased this Pro Mac 850 and fired it up today. It will not fire with the choke on, but will start is i squeeze the throttle a few times. Also, what would be "stock" settings for the carburetor? It is a Zama twin jet carburetor. Thank you in advance for any help.

 

[Scott Kelsey]

 

[edju1958]

Seems to me you got it running ok Scott?

 

[edju1958]

I've got a PM55 that had an accident back in April.The saw fell off a shelf & broke the rear handle off.I swapped out the tank handle back in June & found that it needed a crank seal.The saw sat till today & I put a new crank seal in it,but found that the keyway on the crank is wallowed out.I put it back together in hopes that it'd fire up again,but not sure if the timing is off,or if it even has spark.I'll look into it more tomorrow,but at this point I'm gonna assume that the crank needs to be replaced.I saw a used crank on feebay that is supposed to fit many different models (pm 55,10-10,700,etc.).I have no idea if the crank swaps out for that many models.Any input is welcome.

 

[heimannm]

Scott, I would normally start with 1-1/14 turns open on both H &L. The fact that it starts with throttle and no choke would indicate flooding to me. I would go through the carburetor and make sure everything is correct (holds pressure, metering lever setting, etc., and you may need to test the HS check valve if it floods out at idle.

Mark

 

[heimannm]

Ed - your PM55 has points ignition, make sure any crankshaft you get has the points cam/lobe. All of the 54, 57, 60, and 71cc 10 Series models have the same 1.375" stroke but there are a number of differences in shaft lengths, keyways, RH/LH threads on the PTO side, and the aforementioned cam/lobe.

If you can't find one elsewhere, I should have a good used crankshaft available that will fit the PM55.

Mark

 

[edju1958]

Mark,according to the IPLs I have,the PM10-10 & the PM55 take the same crankshaft,part # 87699 for both.I've got a 10-10 short block sitting around,but I don't know what it came out of.I'll have to look in the a.m.I did find a partial short block from a PM 10-10 on feebay for $13 + shipping.I'll have to check with the seller to see if it has a points cam.

 

[edju1958]

I didn't find the short block for the 10-10 today,but I have a couple other places to look.The crank on feebay (according to the seller) is keyed at both ends,so that one won't work.I think this saw will be a winter project,if I even decide to do it).

 

[Rallyeguy]

I didn't find the short block for the 10-10 today,but I have a couple other places to look.The crank on feebay (according to the seller) is keyed at both ends,so that one won't work.I think this saw will be a winter project,if I even decide to do it).

These are all over ebay and lots of guys have them as the cranks didn't go bad on these saws. Best thing is to find a used one with decent bearings.

Did a search on ebay and this one would work with your saw. I looked it up and its a a left hand start with points. said he was running it so guessing bearings are good I'd replaced seals in case that was the cause.

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