Piotr Pakuła
ArboristSite Guru
In my case, if I want a skip chain, I just need to break every second blade 
there is nothing else
there is nothing else
Vintage Chainsaw Museum
- Thread starter heimannm
- Start date
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Another surprise visitor today, Chet AKA JetMD stopped by as he was passing through on the way to visit his folks nearby.
I'm still an Extra Medium, Chet is a 3 or 4T...
Mark
I'm still an Extra Medium, Chet is a 3 or 4T...
Mark
What do you make of this? I knew Mac had some weird chains at times but this one is quite interesting. I thought a bp1 would run 3/8 050.
The BP-1 utilized a unique "chassis", 1/2" pitch but smaller drivers more like the size of 3/8" pitch chain. There were three different versions, AR-8 is the "Auto Sharp" type chain with heavy cutters, AC-8 is the chipper type chain (in Rogers' photos above"), and A-8 also "Auto Sharp" type chain but with lighter stamped cutters.
This is A-8 type chain
This is AC-8
This is AR-8 with the heavy cutters and the drive sprocket peculiar to the "A" chassis.
I have a couple of short pieces of the AR-8 chain but have never seen a full loop of it anywhere.
For the record, that gold colored drive sprocket is standard 1/2" pitch and not the correct one for the AC-8 chain shown in the photos.
Mark
This is A-8 type chain
This is AC-8
This is AR-8 with the heavy cutters and the drive sprocket peculiar to the "A" chassis.
I have a couple of short pieces of the AR-8 chain but have never seen a full loop of it anywhere.
For the record, that gold colored drive sprocket is standard 1/2" pitch and not the correct one for the AC-8 chain shown in the photos.
Mark
Wow now that is interesting! Thanks for the knowledge.
Chainsaw Collectors
ArboristSite Operative
Nice, I have the bicentennial Poulan version.
Ready for the display, Titan 40
Titan 30
Mark
Titan 30
Mark
I thought the ‘stinger’ handles went on the front end of the saws!
Philbert
Philbert
A BP-1 story I have is there is a small engine shop in my area that was a McCulloch dealer up unto the very end. The first time I went there looking for Mac parts they mentioned their BP-1 on display and asked if I had ever heard of one. When I replied "I've seen 2 racing each other", they were very surprised to say the least.
RIP AWOL
Mark
Phase 2 has begun in earnest. My current building (grey) is about 3' away from the old building coming down. The other side is much closer...
Mark
Mark
That Mini Mac still has big dreams of cutting up that big section of trunk I see....
Exciting stuff!
Exciting stuff!
Wow!
I assumed that you were going to annex that building, not ‘eat’ it!
Look forward to watching your new project!
Philbert
I assumed that you were going to annex that building, not ‘eat’ it!
Look forward to watching your new project!
Philbert
