ok ive started rebuilding an old engine i bought of djinuk
so to start with ive fitted the reground crank along with new main bearings and the crank spins freely as you would expect
then i fitted the conrods to the crank and all seem fine either side of TDC but beyond that i cannot move the crank without using a little force.
i removed the crank and refitted the conrods to the crank without it being fitted to the block, and all conrods are moving freely
* so when the crank is fitted to the block = OK
* with crank removed and conrods fitted, all parts are moving freely = OK
* conrods fitted to crank with crank fitted to block = seems stiff.
Now im unsure if it should actually be classed as being stiff, do you think it may just be due to the fact the piston rings are gripping causing the stiffness feel..?
at TDC i can move the crank both ways up to a point,then it starts to become stiff(but moveable).
the crank turns easy enough with a torque wrench.
im bit confused