ACReddfalcon
New User
folks,
recently doing an full engine rebuild kit on AC B (crank start). with cam/crank in and torque'd to spec with shims, I can easily rotate the crank by hand. Then I started dropping pistons in. with all pistons in and con rod bearing caps on it is quite difficult to crank via the front pulley and hand crank. And that is without torqueing the bearing caps down to spec (90ish ft lbs). I have used shims and even shaved down a few of the connecting rod bearings to no avail. Tried to clean up the rod journals on the crankshaft but it was in pretty bad shape, and possibly marred in some areas. I'm not sure if the issue here is the bearing and bearing cap and clearances or the clearances of the outside edge of the connecting rod and sides of the journal on the crankshaft. Does anyone have any experience with this? Because this is a hand crank I feel I should make it as effortless as possible. It currently takes a LOT of force to rotate the crank via front pulley and breaker bar, and that is without compression. Any suggestions would be welcome.
recently doing an full engine rebuild kit on AC B (crank start). with cam/crank in and torque'd to spec with shims, I can easily rotate the crank by hand. Then I started dropping pistons in. with all pistons in and con rod bearing caps on it is quite difficult to crank via the front pulley and hand crank. And that is without torqueing the bearing caps down to spec (90ish ft lbs). I have used shims and even shaved down a few of the connecting rod bearings to no avail. Tried to clean up the rod journals on the crankshaft but it was in pretty bad shape, and possibly marred in some areas. I'm not sure if the issue here is the bearing and bearing cap and clearances or the clearances of the outside edge of the connecting rod and sides of the journal on the crankshaft. Does anyone have any experience with this? Because this is a hand crank I feel I should make it as effortless as possible. It currently takes a LOT of force to rotate the crank via front pulley and breaker bar, and that is without compression. Any suggestions would be welcome.