Home › Forum › Ask A Member › Evinrude 7.5 hp – Hard to pull › Reply To: Evinrude 7.5 hp – Hard to pull
Like Frank says, that driveshaft shock may have expanded causing the driveshaft to bind on the upper bushing seal housing in the gearcase….Was the gear lube clean when you changed the impeller? I have never seen one of those old 7.5hps with such high compression….Usually see only 80PSI….So, I would recheck compression with another compression gage…. There is something unusual going on if the compression readings of 120-130PSI are accurate readings…
The 1955 engines did not have the oblong starter pulley, so “timing the recoil rope” is not necessary. Are you sure it is a 1955 model?
Wbeaton raises another great point about after market impellers, they are notorious for improper fit….Stick with the OEM water pump pieces…
That being said, did the engine pull over OK before you did the water pump job?