I had a question for the M715 owners on here. I've talked to a number of people now with M715 trucks (two with different engines than the original Tornado straight 6's). Four of the people I talked with said that their trucks would run fine up to 50mph on flat ground but would bog down and slow to 30-35mph maximum going up hill (with or without the front axles engaged).
What I was wondering is:
Is this something that is normal due to the design of the truck, or is it something that has to do with a particular component on the truck being damaged?
One of the trucks that was bogging had a carburetor problem (heavily overfueling) so I thought that one was just due to the carb, one had a blown #1 piston (or headgasket, didn't pull the engine apart to check). The others were all good engines and the two with replacement engines had the same problem.
Any insight here would be greatly appreciated.
Thanks in advance,