MCCULLOCH The official McCulloch thread

[heimannm]

The clutch drum for the Power Mac 6 is the same as the ones used on the Mini Mac and 300 Series model saws. For example:

https://www.ebay.com/itm/Clutch-Dru...103632?hash=item2893e756d0:g:8-UAAOSwLmxeuhAa

https://www.ebay.com/itm/McCulloch-...46348030ebfdb2836427|ampid:PL_CLK|clp:2334524

https://www.ebay.com/itm/McCULLOCH-...604609&hash=item5429b27a96:g:L9QAAOxyjPNRFDjy

If you have a sprocket tip bar, the bar will have to be changed for a 3/8 (LP) sprocket nose as well.

Mark

 

[Dream]

Could luck up on a whole parts saw. Models Mark mentioned above.
That would get you a clutch, sprocket, and a bar. Might even luck up and get a good chain. Bought a S25 Poulan that way once. Brand new chain. Good bar.

 

[msellers]

Any happen to have an IPL for a 1-70? Trying to locate seals for that beast.

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[Al Smith]

I'll look them up tomorrow some time ,hold your horses .I have the master interchange book from bearings inc .Very seldom with the exception of Stihl if I can not find a seal number .Mac being made in the USA should not be a problem .However I might need to get into my Mac micro fiche to find the OEM part numbers to cross reference .Recently on the rebuild of two Partner p-100's I had to transpose Partner numbers to McCulloch 1000 part numbers to figure it out .The online pirates tried to get $ 20 plus a seal .With the CR numbers it was $5 or less per .You have to learn how to beat them at their own game What happens I think with a lot of this old stuff is the people who have the parts think they are sitting on a gold mine .They fail to realize "yankee ingenuity " .Some of us know a lot more than than they think we do . I love the challenge .

 

[msellers]

I'll look them up tomorrow some time ,hold your horses .I have the master interchange book from bearings inc .Very seldom with the exception of Stihl if I can not find a seal number .Mac being made in the USA should not be a problem .However I might need to get into my Mac micro fiche to find the OEM part numbers to cross reference .Recently on the rebuild of two Partner p-100's I had to transpose Partner numbers to McCulloch 1000 part numbers to figure it out .The online pirates tried to get $ 20 plus a seal .With the CR numbers it was $5 or less per .You have to learn how to beat them at their own game What happens I think with a lot of this old stuff is the people who have the parts think they are sitting on a gold mine .They fail to realize "yankee ingenuity " .Some of us know a lot more than than they think we do . I love the challenge .

Thank you very much. I love yhe challenge as well. Took me a while to cross reference and find the crank seals for my dad's mini mac 6. About drove thw bearing house mad trying to get me the right one.
Mike

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[Al Smith]

Here ya go clutch side Mac # 104432 ---CR# 6816 FW side Mac#102940 --CR # 6556 Both on E-bay as I type 11 bucks each .
Note inboard of the clutch side seal they show a felt seal of some kind # 51235 of which I found a CR number 4990 but it did not list McCulloch rather Clark whoever that is .
From my limited experience with felt I think they act as a wick of some sort .I've never really seen any on old tractors that needed replaced .

 

[Al Smith]

I did a little more research and found a few CR 4990 which appears to be a thin single lip seal that might take the place of the felt .On some of the 125's they used back to back seals but I forgot which side they were on .Some people I've heard used them and some did not with no bad results .At any rate they are on flea bay also 7 a pop

 

[msellers]

Here ya go clutch side Mac # 104432 ---CR# 6816 FW side Mac#102940 --CR # 6556 Both on E-bay as I type 11 bucks each .
Note inboard of the clutch side seal they show a felt seal of some kind # 51235 of which I found a CR number 4990 but it did not list McCulloch rather Clark whoever that is .
From my limited experience with felt I think they act as a wick of some sort .I've never really seen any on old tractors that needed replaced .

Thank you very much for this Al. I am greatly appreciative of this and the willingness to share.

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[jacob j.]

I did a little more research and found a few CR 4990 which appears to be a thin single lip seal that might take the place of the felt .On some of the 125's they used back to back seals but I forgot which side they were on .Some people I've heard used them and some did not with no bad results .At any rate they are on flea bay also 7 a pop

That was on the 125 flywheel side Al, and the crankcase cover plate on that side had a felt absorbent pad in the points box to collect any oil that weeped through. Of course, this was in the days when they were calling for 16:1.

In the saws I've been building in the last two years, I've been going with a single double-lipped seal on that side and not including the felt pad. I've been mainly running the 125s these days on 32:1 with the Husqvarna
semi-synthetic and they really like that oil, regardless if it's a chrome or iron bore.

 

[Dream]

Thank you very much. I love yhe challenge as well. Took me a while to cross reference and find the crank seals for my dad's mini mac 6. About drove thw bearing house mad trying to get me the right one.
Mike

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So can I cheat and get you to give me those seal part numbers?
I just took a MM6A apart the other night. Might as well put seals in while its apart.

 

[msellers]

So can I cheat and get you to give me those seal part numbers?
I just took a MM6A apart the other night. Might as well put seals in while its apart.

Absolutely, will get them when I go to lunch or worst case when I get done at work today.

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[msellers]

So can I cheat and get you to give me those seal part numbers?
I just took a MM6A apart the other night. Might as well put seals in while its apart.

Found that I had this on my phone, so here you are.

 

[Al Smith]

On that 1-70 either it or the super 44A morphed into the MC 10 engine .In looking at the micro fiche they shared a lot of the same parts very close design also .

 

[popopboat]

Finished rebuilding my SP81 (almost)
Did some cutting with it and all I can say is that it pulls like a mule! (its not cold)
Temporary touched up paint with spray can, maybe will powder coat it after.

 

[heimannm]

Very nice popop - love the cackle of the SP saws.

Mark

 

[Dream]

Found that I had this on my phone, so here you are.

Thanks for that! Saves me some legwork, and possibly some error from the bearing supply. I'll try to return the favor. I know a lot of the WRONG THINGS to do with a 10 series...just ask.

 

[Dream]

Finished rebuilding my SP81 (almost)
Did some cutting with it and all I can say is that it pulls like a mule! (its not cold)
Temporary touched up paint with spray can, maybe will powder coat it after.

Sounds GREAT!
Love those. Want one of my own one day, along with a 101 and a 125...
Fine job you did. Looks and sounds very good.

 

[Dream]

So the problem with my Mac 130 is its ingesting massive quantities of bar oil.
To the point its almost hydrolocking. Tip it over to the right, and oily, thick fuel drips out the muffler.
Havent been into these oiler pumps much. Most of mine work well. What should I be looking for here as a cause?
Is there some sort of check valve? Popped the pump off, and there is a gasket and a port to the crankcase there. Pump piston just has a Bakelite disc that fits to the cylinder of the pump body. It has the pintle rod that runs the oiler Pump attached to the piston. Is there some part I'm missing?

 

[Al Smith]

The 81's are a power house .As a rule as things considered as far as time they will run with anything made today .I've got 70 ccs and modified 72 cc 's that will out run them but not in stock form.

 

[Steve]

So the problem with my Mac 130 is its ingesting massive quantities of bar oil.
To the point its almost hydrolocking. Tip it over to the right, and oily, thick fuel drips out the muffler.
Havent been into these oiler pumps much. Most of mine work well. What should I be looking for here as a cause?
Is there some sort of check valve? Popped the pump off, and there is a gasket and a port to the crankcase there. Pump piston just has a Bakelite disc that fits to the cylinder of the pump body. It has the pintle rod that runs the oiler Pump attached to the piston. Is there some part I'm missing?

Put a new/different pump auto pump on it. Sometimes they wear or crack and leak oil into the crank case.