The McCulloch Chainsaw Thread, continued.

leeha

Well-Known Member
Jan 15, 2012
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I guess, Lets carry on

Mcculloch 7-55 two man made for the military. Picked this up a couple
winters ago and was suppose to be a runner. Ya we all know how that
goes. I added gas and it went all over the floor. Took the carb appart
then it sat till last fall. I sent the diaphragm to Suger creak Supply and
joe made one and put the metal tag on it. I finally got around to it sunday.
Installed diaphragm and put some fuel in the tank. Yup all over the floor
again. WTF. Took carb apart again, saw nothing wrong. Googled 7-55 carb
and found a little info. The lever in the carb is suppose to be straight and
mine was bent. Ok i straightened that now it won't stay running. WTF man.
Had this thing apart three times. Finally i saw a screw so messed with it and
turns out it's an air screw and was out to far. Turned it in and this thang runs
perfect. What a saw.

This saw as i was told is one of two known and they have consecutive serial
numbers. They were together at an auction and thats where they got split up.


Lee













 

leeha

Well-Known Member
Jan 15, 2012
1,058
3,295
113
Figured we better get a jump ahead.



So Randell, How many carbs you tryin to stuff into the saw? I'm seein about
eight so you must be making some sort of and 8 barrel setup. Carry on and
keep us posted. Oh and to get the job done correctly you will need one beer
and one shot of that high octane in the glass per carb. to correctly make it
work.


Lee
 

2broke2ride

Active Member
Jul 24, 2014
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Aaron, by "Late large frame" are you referring to the super pro series saws or more like the super 250? Still new to all the terminology with these saws.
 
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heimannm

Well-Known Member
Feb 6, 2014
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Dike, Iowa
Seems we are in a new thread, but continuing a thought from the first, here is the bar adjuster hole with the oiler slot opened with a cut off wheel through the groove. You can see how the bar was overheated a bit cutting the first one in.

To make the bar adjuster fit properly, I had to file a bit of a slot in the bar adjuster hole.

IMG_4764.1.jpg

Mark
 

Eccentric

Walkin' Boss
Jan 13, 2012
14,081
67,030
113
46
Uranus...
I guess, Lets carry on

Mcculloch 7-55 two man made for the military. Picked this up a couple
winters ago and was suppose to be a runner. Ya we all know how that
goes. I added gas and it went all over the floor. Took the carb appart
then it sat till last fall. I sent the diaphragm to Suger creak Supply and
joe made one and put the metal tag on it. I finally got around to it sunday.
Installed diaphragm and put some fuel in the tank. Yup all over the floor
again. WTF. Took carb apart again, saw nothing wrong. Googled 7-55 carb
and found a little info. The lever in the carb is suppose to be straight and
mine was bent. Ok i straightened that now it won't stay running. WTF man.
Had this thing apart three times. Finally i saw a screw so messed with it and
turns out it's an air screw and was out to far. Turned it in and this thang runs
perfect. What a saw.

This saw as i was told is one of two known and they have consecutive serial
numbers. They were together at an auction and thats where they got split up.


Lee













Excellent saw Lee! Good job being persistent and defeating the problems with it. Great news about the diaphragm. I need to contact Joe about making a diaphragm up for my 7-55.
 
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Eccentric

Walkin' Boss
Jan 13, 2012
14,081
67,030
113
46
Uranus...
Aaron, by "Late large frame" are you referring to the super pro series saws or more like the super 250? Still new to all the terminology with these saws.
D30/D44/1-40series/1-50series/1-60series/1-70series/1-80series/200/250//S-250/300/380/450/550/S-550/700series/800series/CP125/SP105/SP125/PM105 are all large frame. Probably left out a model/series or three there, but you get the idea.

My reference to "late large frame" referred to the bar plates being late style plates for large frame saws.................not necessarily plates for late large frame saws (the plates can be used on any age of large frame Mac). Clear as mud?

1-10/2-10/3-10/4-10/5-10/6-10/7-10/10-10/CP55/CP70/SP55/SP60/SP70/SP80/SP81/PM55/PM555/PM60/PM10-10/PM700/PM850/PM805/PM800/PM8200/DE80/PM4300/etc/etc/etc are all 10-series.





An example of late style large frame plates. Basically enlarged 10-series plates.



An example of 10-series bar plates.




An example of an early style bar plate.
 
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towingace

New Member
Jan 8, 2014
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SW Washington
D30/D44/1-40series/1-50series/1-60series/1-70series/1-80series/200/250//S-250/300/380/450/550/S-550/700series/800series/CP125/SP105/SP125/PM105 are all large frame. Probably left out a model/series or three there, but you get the idea.

My reference to "late large frame" referred to the bar plates being late style plates for large frame saws.................not necessarily plates for late large frame saws (the plates can be used on any age of large frame Mac). Clear as mud?

1-10/2-10/3-10/4-10/5-10/6-10/7-10/10-10/CP55/CP70/SP55/SP60/SP70/SP80/SP81/PM55/PM555/PM60/PM10-10/PM700/PM850/PM805/PM800/PM8200/DE80/PM4300/etc/etc/etc are all 10-series.





An example of late style large frame plates. Basically enlarged 10-series plates.



An example of 10-series bar plates.




An example of an early style bar plate.
Yur gonna overload the new puter system with all those numbers. lol :bananatype:
 

2broke2ride

Active Member
Jul 24, 2014
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You guys ever run an earlier Jonsereds bar? I have one off a 70e that looks like it would work with no mods at all as long as I use the right bar plate/spacer combo.
Not that these bars are easy to find and this one is only an 18" and worn out.
 

heimannm

Well-Known Member
Feb 6, 2014
1,121
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113
Dike, Iowa
To make the Jonsered bar fit you would have to make the slot a bit longer at the back, they won't quite fit between the clutch drum and stud as it is if the saw has a full wrap handle installed.

I think the bar adjuster should be close enough to work, might still take a little filing to let it drop in to place. I am not sure the oiler hole in the J'red bar will be in the right place when the bar is adjusted to the extreme out position.

You will need to have the correct bar plates, otherwise the bar plate will cover the oil hole in that bar.

DSCN0001.jpg

DSCN0006.jpg

DSCN0008.jpg

DSCN0009.jpg

Mark
 

2broke2ride

Active Member
Jul 24, 2014
168
191
43
This Jred bar has the oil hole but it also has the channels cut through to the adjuster holes like a 10 series bar, I did have to tip the tail in under the clutch to get it to sit on there but everything else seemed to line up.
It is an older Oregon bar from the 80's
 
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