GUYS ? We need some help figuring out this 750 massey ,,,just put a NEW turbo on 354 perkins ,,.it still wont start unless ethered, smokes bad , and no power,slow pickup .....,same as it did before we installed the NEW turbo charger ... ,, before that ,, we changed ALL NEW Air Filters and Fuel Filters ,after installing the turbo ,yesterday, we took off air intake and started with ether on warm motor, and it still ran the same ....no improvement...is the motor toast ?,, it had developed a sneaky hose leak and got hot and required 3 gallons of coolant earlier this season are ALL theFuel inJectors Bad ? ,, we are thinking pull injectors next and get rebuilt ,do a compression test while open ?? wonder if the injection pump is needing rebuilt? this combine always started and ran good ...