A lot of people think (a lot know too) that the supercharger is fitted just for power, fact is they wouldn’t start without it ........ and that they are one of few engines if you stalled it and it was rolling backwards and let out the clutch they would start running backwards, I think when this happened they ran until they grenaded themselves.
Im pretty sure they never last long as they don't have any oil pressure
Bulldog tractors would start backwards 50% of the time
6-110's were standard in HD Allis Chalmers
The first of the 6-110's were available with either a blower from a 6-71 or big drum fan type blower but the latter were unreliable and fell apart if over revved
Your better to die trying than live on your knees begging
Actually a GM wont run backwards,because the blower is goint the wrong way............we had a 3306T Caterpillar in a Leader 8 wheeler ,and I dont know how many times the air cleaner element caught fire from running backwards..........A driver who wasnt used to the truck wouldnt know what was going on ,and stop the motor straight away.....Put it into forward gear ,and it would go back ...and zero oil pressure on the gauge....next smoke coming from the air cleaner.
Another good read to while away an hour or two!
Had heard of (but never seen) the ONE-71 engine, apparently a few built for lighting plants for both military as well as domestic.
I assume they were also supercharged?
2/71 I recall as being fitted to Euclid S7 scrapers as rear mounted elevator drives, 3/71 as crane engines (amongst many other applications) on P&H mobile cranes (6/71 in P/mover).
John.K. wrote "Actually a GM wont run backwards,because the blower is going the wrong way.....". had heard many stories especially of A/C clutch drive dozers when the got up against the point of stalling and the operator not being quick enough to pull the master clutch in, went over centre and took off.
Thought that the whole idea of the "emergency stop" control on the 8V71's and even the 671's was to slam shut the flapper valve in the blower air box to stop that??
Had seen the resultant mess made after an 8V71 had supposedly ran backwards for long enough to blow the hat off the air cleaner and just about empty the sump, before being stalled with the emergency stop unit.
Don't know enough about them as far as the mechanics of them, whether they could or couldn't. Noisy buggers to drive especially on those early cabover imported units where the exhaust came out the drivers side.
Must have been doing something right, made a cupla million of 'em.