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Jukka Juutinen (Login surseenpeti) Missing-Lynx members from IP address 184.108.40.206
Do you folks perhaps have some information on the engine life/time between overhauls for Allied tank engines, primarily the 4 main engines (R-975C1/C4, GM diesel, Ford GAA, Chrysler Multibank) of the Sherman series plus the Meteor? Plus info on typical modes of failures on these engines?
I can only speak for use in the North Afircan desert.
Their the average time for changing an R-975 seems to have been around 1000 miles, especially in the Western desert.
Typical problems has been dust entering due to inadequate air filters (at this time), causing abrasion in piston and cylinders, increasing oil consumption and reducing compression.
The GM Diesel seems to have been more robust. Details would be interesting.
British tank engines seems to have been better prepared for the dust (airfilter system), because for the Nuffield Liberty (as used in the Crusader) most reports mentioned oil/water leaks due to his screwed on, single cylinder concept, which creates torsion within the many pipes, causing leaks. Biggest problems seems to have been the water pump, due to non-adequate material for the water pump shaft, causing in up to 3 times changing the water pump per day.
Even the chain driven cooling fan system on the 1st versions was quickly worn out becasue the fan sucks the air (+dust) from the top of the engine (through the water coolers) via the (greased) drive chains to the rear of the tank.
as always, one more part from you to close the puzzle.
Interesting is to see that the average mileage for the "complicated" 30 cylinder Chrysler A-57 "multi-bank" engine of the Sherman M4A4 is with 2000 miles the double of the "simpler" M3/M4, with his Continental R975.
Only for comparation: Actuall life-time of today´s German Army combat vehicles in Afgh. is up to 3-5000 Km. So seems nothing has been really improved within the last 70 years on military vehicle technical lifetime......