McCulloch Chain Saws

[bob15]

I picked up two 10 series saws today for a total of $11. I have not had a chance to take some pics but one seems to be a right hand start 10-10 and the other is a bit different. This will test the McCulloch faithful. What 10 series saw had a gold starter shield and a decompression valve? I will run the #'s when I get the chance, both have good compression as should run with a few parts.

The gold starter saw would be the infamous, ultra rare, PM10-10s, of which its bronze covered sister saw, the Timberbear is selling $500 on e-bay right now.

All kidding aside, did someone paint a 10 series saw, or is it a "x-thousand" saw or some other commemorative-type saw?


bob

 

[Warped5]

I picked up two 10 series saws today for a total of $11. I have not had a chance to take some pics but one seems to be a right hand start 10-10 and the other is a bit different. This will test the McCulloch faithful. What 10 series saw had a gold starter shield and a decompression valve? I will run the #'s when I get the chance, both have good compression as should run with a few parts.

The only 10 Series that had a decomp valve was the 10-10S, IIRC. Nice find!

 

[promac850]

Anyone know exactly which gasket material I need to make gaskets for the 790 engine gaskets? I want to get it together asap.

Ordering parts from the Mac parts master doesn't work well since I simply have a hard time hearing over the phone.

As for what other parts I need, it's pretty much only that cosmetic piece, the grille on the air filter cover, and an air filter.

I have one question... is the governor that they installed on these big Macs for the idle, or do they control top end rpm as well? I hope it doesn't choke down the latter, as this six cuber is ported... if it's the former, I'll see if I can get a flatback to work right. If it's the former, a Tilly HL will be installed.

 

[a. palmer jr.]

The only 10 Series that had a decomp valve was the 10-10S, IIRC. Nice find!

I once had a 3-10, I believe it was that had a de-comp valve. Don't know why, it wasn't that hard to pull.

 

[rwoods]

At least one of us uses the term ten series to refer to all of the 54 to 82 cc MACs - maybe that is misspeak but to me the ten series includes them all; not just the 1010s. Ron

 

[heimannm]

To our new friend in Germany, very nice family photo's. The SP40 / 510 saws are actually very nice little top handle saws.

There are quite a few 10 Series saws with different variations of DSP / compression release including the electric start models, 2-10, 3-10, 5-10, 6-10 DSP models, 7-10 and 10-10S, all the other "Pro Mac" models, and all but a few of the PM 800 saws.

Ron - I have not run my SP 70 much but the 7-10 has new rings and the SP 70 needs at least new rings so it is not a fair comparison. I do have another SP70 that is very nice cosmetically, but the piston and cylinder are very bad. When I find a nice short block for that one I will try to make a better comparison. I also have a CP70 but it is no better shape than my SP70 so I can't make a good test there either.

Today I sorted through about 300 part numbers worth of small packets, still a long way to go but the most interesting discoveries (to me) so far are several 10 Series duck bill valves (currently unobtainium) and a NOS starter switch/regulator for the 10 Series "E" models.

Mark

 

[heimannm]

One more thing - C1, pressure test the carburetor, I have had similar experiences with SDC and HDB carburetors that leaked around the metering gasket/cover that I finally had to replace to correct.

Mark

 

[rwoods]

70cc & 38cc MACs

On my to do list is to complete a SP70 rebuild. My PM700 is down to the 135 psi range so a comparison might not be fair.

The first saw I purchased was a 510; bought new in 1980. That little bugger ran great with a 1/4" chain - it put a whooping on a lot of under 50cc "full size" saws that my firewooding friends used. But it was hard starting and the plastic recoil was pretty junky and would rip loose. The plastic and the AV also made it pretty wigglely. If the SP40 is any sturdier than the 510, I would consider ditching my PM6A projects as the 510 / SP40 engine has more power than the PM6As I used in my teenage years. I've never handled a SP40 but from the pictures I've seen it appears to have more metal than the 510.

Ron

 

[joeymt33]

On my to do list is to complete a SP70 rebuild. My PM700 is down to the 135 psi range so a comparison might not be fair.

The first saw I purchased was a 510; bought new in 1980. That little bugger ran great with a 1/4" chain - it put a whooping on a lot of under 50cc "full size" saws that my firewooding friends used. But it was hard starting and the plastic recoil was pretty junky and would rip loose. The plastic and the AV also made it pretty wigglely. If the SP40 is any sturdier than the 510, I would consider ditching my PM6A projects as the 510 / SP40 engine has more power than the PM6As I used in my teenage years. I've never handled a SP40 but from the pictures I've seen it appears to have more metal than the 510.

Ron

i always though the SP40 was a 40cc saw. i just looked through some McLiterature and found that it is actually 38cc like the 510. My SP40 seems to have more power than my 510 but that could be alot of factors. I changed the SP40 to a carb that has high and low adjustments which made a big difference and then installed a electronic coil from a MM. i may get a vid of it soon to compare the two. BTW, i keep a 18" bar on the SP40 for topping trees when my cutting partner climbs. it pulls it pretty good with a 3/8LP.

 

[rwoods]

510 Recollections

IIRCC my 510 had a 16" bar but it might have just been 14" - been too long now.

I didn't know what I was doing back then (still don't to a large extent) and I did a lot of stupid things. I cut a large Weeping willow by standing at the top of an extension ladder - the bar was too short to cut it at the base and I wanted to shorten the reach of the tree should it fall the wrong way - wait a minute the wrong way would be on me first then the house :bang:. The first of my two career "big" tree barber chairs was also with that little MAC. I took on a 24" plus white oak growing on about a 60 degree slope. It broke off with the pivot point over my head :msp_scared: me bad. I brought Dent's book after that and did some studying. I also bought a bigger saw and a 28" bar so I don't have to spend much time behind the tree. More than thirty years passed before I had my second barber chair of a large tree - also a white oak with a slight lean - post mortum - I was too slow in the backcut - me not the saw, a PM800 with a 28" bar. Ron

 

[homelitejim]

At least one of us uses the term ten series to refer to all of the 54 to 82 cc MACs - maybe that is misspeak but to me the ten series includes them all; not just the 1010s. Ron

Right I do refer to the entire series as the 10 series or 10x series and this covers a mess of saws. Here are a few pics, looks to me that the starter cover badge may have been painted, possibly by a kid and here are the #'s 600031R/12-11874 and the one with the decomp is 600007/13-12194. I have not had a chance to look them up yet. Anyway for $11 I feel I got what I paid for.

 

[rwoods]

Well, that makes three of us. :msp_smile: Ron

 

[bob15]

Right I do refer to the entire series as the 10 series or 10x series and this covers a mess of saws. Here are a few pics, looks to me that the starter cover badge may have been painted, possibly by a kid and here are the #'s 600031R/12-11874 and the one with the decomp is 600007/13-12194. I have not had a chance to look them up yet. Anyway for $11 I feel I got what I paid for.

Saw 600007 is a Super 10-10A
Saw 600031 is Pro Mac 55

$5.50 each for a couple parts saws....not bad. That's what I try to get them for. Two thumbs up :msp_thumbup::msp_thumbup:

bob

 

[Warped5]

Right I do refer to the entire series as the 10 series or 10x series and this covers a mess of saws. Here are a few pics, looks to me that the starter cover badge may have been painted, possibly by a kid and here are the #'s 600031R/12-11874 and the one with the decomp is 600007/13-12194. I have not had a chance to look them up yet. Anyway for $11 I feel I got what I paid for.

Nice for $11!

Ok, now that we have the 'series' stuff cleared up ... The 10-10S is probably the smallest saw (57cc) that has the decomp valve. I think nearly all of them have it as they get larger. I've seen it a couple of times how the one with the fine threads is still not too hard to get, where the coarse threaded one is a bit more rare. If that's the one on the 125, there is one on eBay now ...

 

[rwoods]

Ted, thanks for keeping an eye out for us who are looking for the coarse thread valves. The 125 is fine thread but otherwises looks the same with the long plastic cap. Not trying to bust you on the ten series verbage just making sure that I am speaking close to the same language used here. :msp_smile: Ron

 

[bob15]

Nice for $11!

Ok, now that we have the 'series' stuff cleared up ... The 10-10S is probably the smallest saw (57cc) that has the decomp valve. I think nearly all of them have it as they get larger. I've seen it a couple of times how the one with the fine threads is still not too hard to get, where the coarse threaded one is a bit more rare. If that's the one on the 125, there is one on eBay now ...

Besides the 10-10s, HomeliteJim's newly acquired PM55, my PM570's and McCulloch's PM555 all had thread DSP switches and actually predated the 10-10s by a bunch of years. Add 3cc's and the SP60 & PM60 also had DSP's of the threaded in variety.

bob

 

[Eccentric]

Nice for $11!

Ok, now that we have the 'series' stuff cleared up ... The 10-10S is probably the smallest saw (57cc) that has the decomp valve. I think nearly all of them have it as they get larger. I've seen it a couple of times how the one with the fine threads is still not too hard to get, where the coarse threaded one is a bit more rare. If that's the one on the 125, there is one on eBay now ...

Ted there were 2-10 and 3-10 saws with the DSP valve. 54cc......

 

[homelitejim]

Saw 600007 is a Super 10-10A
Saw 600031 is Pro Mac 55

$5.50 each for a couple parts saws....not bad. That's what I try to get them for. Two thumbs up :msp_thumbup::msp_thumbup:

bob

Good thing on the PM55, I needed one with a good P&C and should have enough parts to complete 1 running example, the super 10-10A is also my first and I should be able to complete it as well. I really enjoy this series of saws, they are small in stature and fairly light for a all metal saw with plenty of power and a great sound, I have a hard time passing them up when I run across them.

 

[RandyMac]

 

[Eccentric]

Now that powerhead looks familiar. The H&S spikeset and that magnificent bar do too........................although they were on different saws the last time we saw them. That 790 looks a bit different than it did when it left the back of my pickup. Got another foot + of bar/chain, and more aggressive spikes now.

Cut anything with it yet? Having that beast all squared away and in the back of the 'Chero.....................you may be overcome by certain urges if you drive through the A O T G. Got a plumb line in your pocket and some wedges and an axe in the 'Chero???