MCCULLOCH The official McCulloch thread

[Al Smith]

If you could find some 5/16 -24 flange nuts you could ditch the washers.

 

[fossil]

The cover is wallowed out a bit so I figured they would be better. I wish I could find some with the captive flat washer that Poulan used at one time. They were common in automotive applications when attaching nuts on painted surfaces.

 

[T.Roller]

I picked this up while on vacation. Great compression and it fires up easily.

I have never seen a 10 series that throws this much bar oil. I'll have to get in there and back it off.

The front handle bar appears to be bent back a bit and I'm not sure if the muffler is original to the saw.

I like the 70cc series and have a PM700, another 7-10A and a 5-10A that is waiting for me to find a good RH starter assy.

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Nice find!

 

[heimannm]

Tim - You buy that type of nut from McMaster Carr for about $6 each, I replaced some on a couple of my CV saws.

Mark

 

[fossil]

Thanks for the suggestion.

Unfortunately, McMaster Carr did not want to comply with the anti terrorist regs concerning exports implemented back some time ago and no longer ships outside the US.

Too bad, as they have so much useful stuff that is hard to find.
Did a bit of cutting and noodling yesterday with the new to me 7-10. It has a bit of an air leak but runs strong.

Going to start with new seals and go from there.

 

[Al Smith]

I didn't know that about Mc master .I looked up today, just regular flange nuts which they get about 2.50 a pop which I thought was rather high .Then again not to many people would need 5/16 fine thread flange nuts .To bad it wasn't M8 because I've got hundreds of them .I think they call the other a swivel base nut.Have access to a bunch but then again all metric .

 

[Lee H]

Hey Tim, Ya ever need anything from Mcmaster carr or anywhere
else that won't ship to ya let me know. I'll get it to ya. Not a big deal.

 

[fossil]

Hey Tim, Ya ever need anything from Mcmaster carr or anywhere
else that won't ship to ya let me know. I'll get it to ya. Not a big deal.

Thanks Lee. Much appreciated.

 

[Lee H]

No problem at all. You've been good to me. As well as many others.

 

[fossil]

I put a PTO side crank seal in the 7-10A I picked recently and have a FW seal on order. It started and ran well but I put a carb kit in it anyway and it seems to to running very smoothly now. A question about the oiler. I have it down to 1-1/2 turns from lightly seated and the auto oiler is still pumping a lot of oil. It was at 2-1/2 and it doesn't seem to have lessened any.
It's pumping enough that it's running down the sides of the bar and makes quite a mess under the clutch cover.
What do you guys normally set them at or is it a saw by saw setting?
The saw is very smooth for a rigid mount saw.

 

[Al Smith]

Saw by saw. Impulse oilers on the 10 series are a nuisance because they sit in the tank but they do put out the oil.

 

[Stump Shot]

Try thicker oil or thickening it with a jug of STP to slow 'er up a bit.

 

[heimannm]

Been busy the last few weeks, still have a short stack of Mini Macs on the floor to get cleaned up and going, an SP70 to get ready to go out the door this week, trying to get a snow blower rigged up to ride on the Struck mini dozer, and a lot of yard work / landscaping to try and get worked in before it's too late.



Oh yeah, I added a small Grizzly lathe to the shop in the past few weeks as well. Had to build a bench for it. Now if I just had time to do something...



Mark

 

[Lee H]

This one got dropped off the other day. 87cc's of geardrive snort.
Mac 650 set up for 9/16 chain. Had to clean the points, rebuild
the flatback carb and she purrs like an old Mac. Got to get a B&C
for it to see how she performs.

 

[sawfun]

Nice find Lee, Mark and I ran my 660 against his 650, that was sure fun.

 

[Al Smith]

If it runs 9/16" chain I would suspect it runs the 3 to 1 reduction unit .My 650 is set up for 1/2" and uses a 2 to 1 reduction with a Tillotson HL carb. With that set up for a gear drive it is surprisingly fast .

 

[Al Smith]

It's pumping enough that it's running down the sides of the bar and makes quite a mess under the clutch cover.
What do you guys normally set them at or is it a saw by saw setting?
The saw is very smooth for a rigid mount saw.

I'm sure you know that impulse oilers pump as long as the engine is running as opposed to most saws which only oil when the chain is running .Mac designed impulse oilers will properly lube any bar the saw was designed to run. I've ran up to 32" bars on 70 cc 10 series saws and have no doubt they could oil a 36" .I've never seen one but have heard they made up to 42" bars at one time most likely used in the PNW on 82cc Macs .

 

[paragonbuilder]

This one got dropped off the other day. 87cc's of geardrive snort.
Mac 650 set up for 9/16 chain. Had to clean the points, rebuild
the flatback carb and she purrs like an old Mac. Got to get a B&C
for it to see how she performs.

Wow this looks almost identical to a super 250 I picked up a while back which is also 87cc.
What's the difference?


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[Lee H]

Wow this looks almost identical to a super 250 I picked up a while back which is also 87cc.
What's the difference?


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The 650 has the hidden geardrive behind the clutch cover.

 

[paragonbuilder]

The 650 has the hidden geardrive behind the clutch cover.

Ok so same motor but designed for longer bars and bigger chain?


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