iv been rebuilding my engine recently, i got to the stage of puting the rods back on the crank thing is 3 of them go on and turn smoothly but one (closest to flywheel) seems very stiff in comparison with the other 3, dose this mater or is their something wrong?

(impreza 1995 uk turbo)

cheers

 

have you measured clearance on the bearings?

 

to be onest, id fited them once alredy, put them in the block then realised id put two of the rods in the wrong way round so took em all off again, measurements are ok and avery piston rod mas marked for its position, will it free up after a bit or do i need to take it off again?

 

im hoping its ok cus im soooo close of geting the engine back in

 

Hard to say without seein it. When you got the 2 halfs of the block together can you turn the engine over by hand quite easily?

 

Dont chance it - take the rod off the crank again as it should turn freely - chances the bearings have picked up ( you normally see a score line on either of the bearing halfs).
Normally caused by a slight burr around the chamfered oil drilling.

Mick

 

sorted, as merlin siad, it seemed to be catching in a certain place, took it off, gave it a damn hard clean, okely dokely noe, pistons in ect crank turns ok now.

cheers

 

I had the same with one of my rods. Took it off and there was a tiny nick in the crank journal that had raised a minute lip of metal. It ploughed the bearing shell straight away. I took the lip out with an oil stone, replaced the shells and all is well. Still to run the engine though

 

Glad you go it sorted at this stage Ows - now you can crack on with the rest of the build

Mick