McCulloch Mini and Small CC Chainsaw's

[heimannm]

No OEM parts but I have some pretty good substitutes I make on the 3D printer.



Keep woring on your list and we'll get enough together to make the shipping worthwhile...

Mark

 

[Syncop8r]

Controversial...

 

[PogoInTheWoods]

A complete waste of 8 minutes and 6 seconds.

 

[Joe Crocco]

Hi Mark
I am trying to test the coil off of a Promac 510.
I have the coil off the motor and on the bench, meter set to 2K.
When I test from:
Base to kill wire tab I get 0
Base to high tension lead I get 8.07
Kill wire tab to high tension lead I get 8.06
These numbers don't look good to me.
Do you know what the specs are for this coil?
Thanks
Joe

 

[heimannm]

The PM510 is a points saw, secondary windings (high tension to ground or points lead) should be 8K ohm +/- .5 k ohm or so.

Primary will be around 1 ohm, you can't see that on a 2K ohm scale as it will appear to be zero.

Since the stop tab and the point tab are only 1 ohm apart you will see the same reading from the high tension to either terminal.

I'm guessing you're actually on a 20 k ohm scale since 8k ohm would register as an open on a 2K scale.

Mark

 

[Joe Crocco]

You're right, I am on the 20 ohm scale and new at this.
Does this indicate a good coil?
If so I should look at the points next?
Problem is no spark with good plug.

 

[Joe Crocco]

Primary is .001

 

[heimannm]

Those readings seem correct to me.

Try cleaning the points, I use some fine emery paper like 320 grit and follow with some clean paper. Set the gap to 0.018" at the widest opening.

Mark

 

[Joe Crocco]

Spark is good now. I have the white drum rope asy. I need the pin, spring and pawl, one of each. P/Ns 68796, 67814 and 94493. Is this something you might have? I also need 94142 if you have it.

 

[heimannm]

I have everything, let me round them up and make sure everything is O.K. and I'll let you know price and shipping.

Mark Heimann

 

[heimannm]

I have the 94258 kit (2 rivets, 2 pawls, 2 springs) for $5.95 and the 94142 gasket for $3.95.

Shipping options are a small flat rate box for $10.50 (includes tracking and insurance, 3 days to you) or a first class package for $7.50, can be a week to get there.

Mark Heimann

 

[Joe Crocco]

Let's go with first class package. Tell me how to pay for all.
Thanks
Joe

 

[heimannm]

I started a conversation (Private Message), look for the letter icon at the top, right hand corner of the page.

Mark

 

[piglosi]

I recently found an Eager Beaver 2.0 in the yellow case at my dads house. Hasn’t been touched in 20 years, and wasn’t cleaned after use. Pulled over a bit then stopped. Early Sunday morning, I pulled the plug and it was full of oil, perhaps bar oil. I drained and rinsed the crankcase best I could with premix. Pulled covers off both sides and blew out as much garbage as I could. Soaked the chain, cleaned out the bar. Washed all parts in used premix tub I have. Cleaned up the air filter some and reassembled. Added some bar oil and red armor mix 30:1. Eagerly, it fired and ran, and besides minor carb adjustment, it seems okay. Bar oils and it don’t smoke like hell running. Now I’m inspired to work on these mini’s. I have a 120 and a 130. Fixed the 120 no spark condition by cleaning and setting the points. Awaiting a carb kit and that tampon in the tank. Should I attempt changing filter in tank? Advice? Leave well enough alone? It’s cruddy looking on both sides and fuel only drips thru it.

 

[heimannm]

Fuel never runs through them, always just a drip. I made a "tool" out of a short piece of wooden dowel with a handle to push those filters into the tank and remove them from there, then use the tool to properly seat the new filter in the tank. Be careful using a screwdriver or other instrument with a long, pointed projection since it may be hard to slow the tool once the filter is dislodged.

Mark

 

[MacAttack]

Just be warned... fixing these little Macs becomes an addiction, you see people selling or throwing them out EVERYWHERE and before you know it you have a pile of em haha...

The only people that get rid of the little Macs are the guys that aren't man enough to fix em.

 

[piglosi]

Fuel never runs through them, always just a drip. I made a "tool" out of a short piece of wooden dowel with a handle to push those filters into the tank and remove them from there, then use the tool to properly seat the new filter in the tank. Be careful using a screwdriver or other instrument with a long, pointed projection since it may be hard to slow the tool once the filter is dislodged.

Mark

Thanks Mark.
I may leave well enough alone and shelf the filter. Carb is a MDC, and I will kit that and see how it runs.

 

[piglosi]

Just be warned... fixing these little Macs becomes an addiction, you see people selling or throwing them out EVERYWHERE and before you know it you have a pile of em haha...

The only people that get rid of the little Macs are the guys that aren't man enough to fix em.

The knowledge on this site helps tremendously. I’ve read a lot.

 

[heimannm]

I always replace the check valve in the MDC carburetors, they are almost always bad.

Mark

 

[piglosi]

I always replace the check valve in the MDC carburetors, they are almost always bad.

Mark

Thanks Mark.