stihl 051, 076

[robbo 110]

hi all, im currently repairing/restoring my late grandfathers chainsaws & wondering if anyone can help with a couple of bits? 051av, o75av & 076av, ive got them all running, the 51 doesnt have a chain brake, is this how they were or has it been removed? there are no holes in the clutch cover for a brake linkage, the 75 ive used with 36" bar but at full revs it 'misfires' although misfire is perhaps wrong word, the revs arent consistant, there up and down on full throttle, the 076 runs great but is a little difficult to start when hot, all 3 of these saws seem to not rev as hard as i thought they should, is this how they are? any advice would be greatly appreciated, i understand that these saws are getting on a bit now, but they will only be used occassionly for keeping the woodshed topped up!!! many thanks rob

[skyhuck]

Hi Rob, wellcome to the site.

 

I am no expert on old saws, but chain brake's only became common in the early 80's, I had an early 020 (1978) that had no brake.

 

And yes the older saw's were lower revving.

[Rowden the cowboy]

all those old saws are slow as hell but absolute torque monsters: I have an 070 which will happily pull a 36" bar and up to a 48" bar. If you look on you tube you can see an 076 fitted with a 60"bar that pulls well enough so dont worry about slow revving: speed is not the aim of the game with these saws

[John Barleycorn]

Take a look at this chainsaw collectors site, with database

OpenDNS

Edited May 15, 2009 by John Barleycorn

[John Barleycorn]

Take a look at this chainsaw collectors site, with database

http://www.acresinternet.com/cscc.nsf?OpenDatabase]OpenDNS

[Steve Bullman]

the guy you need to talk to is magnus, i'll try and get him

[tree_beard]

051- no brake

 

075- surging revs, possibly an air leak

 

all three saws run about 3000-5000rpm slower than modern saws, but all have excellent torque, very different to saws these days, but pretty much bulletproof

[Al Smith]

That 075 could be just a tad rich .If it cleans up the rpm's when under load that likely could be the problem .

 

The 075-076 if in good tune will pretty much keep up with anything made today if they are used as intended on large wood with long bars .

[Magnus]

Got your message, Steve!

 

The later 051 and 076 did have chain brake as standard.

The first didn't and in middle it was optional for a bit.

 

051

Chainsaw Collectors.se • View topic - Stihl 051 av

 

076

Chainsaw Collectors.se • View topic - Stihl 076 AV