D4 engine power

Does anyone know what the bhp/torque (and revs) specs are on my D4? All my mates who come to look at it see a hefty 4 pot engine and decide that it must be about 90bhp, I'm sure it's probably about only 1/2 that.... They are comparing it to modern higher reving turbocharged engines in their John Deere tractors and have no experience of old iron!

Cheers Julian

Julian, the info on that serial number you quote is as follows
D4400 engine - manufactured 1941
Flywheel HP - 44
Drawbar HP -35
Cheers Al

[quote="English Al"]Julian, the info on that serial number you quote is as follows
D4400 engine - manufactured 1941
Flywheel HP - 44
Drawbar HP -35
Cheers Al[/quote]

They were using big Ol Clydesdale horses back in those days when calculating horsepower, because it's amazing what those 35 drawbar ponies will pull compared to a modern 35 horsepower tractor.

My old best buddy, 83 year old Gwyn had a D7 4T hooked to a pair of big Majestic Plows on his 6,000 acre farm back in the 1960's when his neighbour came past with his new 160HP rubber tyred tractor laughing his head off at the "antique" crawler going so slow breaking up freshly cleared ground, so Gwyn invited him to hook onto the plows with his rubber tyred tractor and show Gwyn how to get the job done quicker, which he did.

Gwyn said for 10 minutes that big ol rubber tyred tractor just dug a hole in the ground trying to get those plows moving, unsuccessfully, before smoke started bellowing out of the clutch compartment. It was a very humbled neighbour in the bar that Saturday night, and all of a sudden he had a new respect for the "antique" D7. Gwyn said back in the 1960's he used to charge $1 a acre for clearing scrub with the D7, they had a D4 at the other end of a length of old anchor chain. You can't buy much for a dollar now, but that was good money back then.
regards
Mike