daTeacha
Veteran Member
HELP! I ACCIDENTALLY PUT THIS IN THE WRONG FORUM! Can someone move it to the general forum about owning and operating? Delete this confession of idiocy if you can, too, please.
Some of you may remember a series of posts last fall about a female student who was restoring an old Oliver tractor. I had posted regarding the wisdom of using two new pistons that were 12 ounces heavier than the remaining two originals. The general concensus was to not do it, bite the financial bullet and buy 4 matched pistons.
There was also some discussion about the position of the heavy ones with respect to the light ones for minimizing stresses and vibration, etc.
The tractor is assembled and running with the two heav pistons in either 1 and 3 or 2 and 4, I don't recall which. The guy who owns the tractor and the girl took it to a local shop with a dyno that measures horsepower from the belt drive, more or less equivalent to PTO horsepower.
The girl just told me that it ran smoothly throughout the testing protocol and was showing 70 hp at the pulley. Not bad for a tractor that was sold as having 60 some engine hp!
Some of you may remember a series of posts last fall about a female student who was restoring an old Oliver tractor. I had posted regarding the wisdom of using two new pistons that were 12 ounces heavier than the remaining two originals. The general concensus was to not do it, bite the financial bullet and buy 4 matched pistons.
There was also some discussion about the position of the heavy ones with respect to the light ones for minimizing stresses and vibration, etc.
The tractor is assembled and running with the two heav pistons in either 1 and 3 or 2 and 4, I don't recall which. The guy who owns the tractor and the girl took it to a local shop with a dyno that measures horsepower from the belt drive, more or less equivalent to PTO horsepower.
The girl just told me that it ran smoothly throughout the testing protocol and was showing 70 hp at the pulley. Not bad for a tractor that was sold as having 60 some engine hp!
Although - if you get to it in 24 hours you can. 
