Kensie1988
Vintage Saw Maniac
I’ve also only been doing this for a year, no prior small engine experience before I started playing with chainsaws, it’s all new to me so I am still learning.
McCullough super pro 81
- Thread starter bobdag
- Start date
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Should be no difference wide open or not. My understanding is some say you get to full compression quicker (i.e. less strokes) when wide open. Don't know.
Ron
Ron
LonestarStihl
Addicted to ArboristSite
So is this going to become a Cummins vs power stroke debate now? [emoji23]
Rather me cummin than strokin
bobdag
ArboristSite Member
Ok so two questions. What's the point gap supposed to be and what's the magneto clearance? I've used a business card to set the mag on stihls. Is it about the same on this one? I'm trying to give it a good cleaning while I'm working on it. One piece at a time. Here's some more pics of it also.
Attachments
By the book, the point gap is 0.020" and the coil to flywheel 0.010".
Try to get the points close to that to keep the timing accurate, I generally use a 0.019" feeler gauge. A wider gap will advance the timing and you don't want too much of that on a points saw with good compression; that starter handle it pretty small and hurts while it's being ripped through your fingers.
Mark
Try to get the points close to that to keep the timing accurate, I generally use a 0.019" feeler gauge. A wider gap will advance the timing and you don't want too much of that on a points saw with good compression; that starter handle it pretty small and hurts while it's being ripped through your fingers.
Mark
I've never seen in any manual that states to use a business card to set clearances.
Manufacturers set specifications for a reason and should be followed if you want the
most out of your equipment or to even run.
Mark is correct on his clearances. Although I set new points at .021 cuz they will close
a thou or two in the first tank of fuel.
Manufacturers set specifications for a reason and should be followed if you want the
most out of your equipment or to even run.
Mark is correct on his clearances. Although I set new points at .021 cuz they will close
a thou or two in the first tank of fuel.
bobdag
ArboristSite Member
Our stihl dealer in town told me of the business card trick.
Your Stihl dealer isn't very well educated.
I use a business card. But I measure it first to make sure it is the right thickness. One size doesn't fit all.
Ron
Ron
Mine is. And he uses a piece of micro-fiche film folded in half to set the coil to flywheel air gap. I use a business card myself. Never had a detectable performance problem as a result.
Points are obviously a bit more critical.
bobdag
ArboristSite Member
Yes! The points in my experience need to be dead nuts on.
bobdag
ArboristSite Member
Does anyone have a parts breakdown of this saw they could send me? I just need something that shows the exploded view. I can't find one on bing or google.
http://www.mymowerparts.com/pdf/McCulloch-Parts-Service-Repair-Manuals/Gas_Powered_Chain_Saws/
Look it up. Believe there are four different ones.
Ron
Look it up. Believe there are four different ones.
Ron
With CAT leading the pack-----
