need help

[beatnikz]

so im rebuilding my ka and i ran into a lil problem when i torque down the main bearing cap the crankshaft won't spin , i dont under stand what im doing wrong can someone plz give me some insight on my problem all help is greatly appreciated thank you

[ericb382]

plastiguage it, make sure your clearances are right

[beatnikz]

did that already

[Ceepo]

If it wont turn over your clearances are wrong, I have never rebuild a KA, but i rebuild my SR(3 months ago) and i had to order different grade bearings from nissan, i ended up returing those(had a spun bearing on the 3rd rod) and getting ACL bearings have had all my journals honed to the same size so i dont have to mess with all the different bearing grade nissan does... but its is something to do with your clearences, are you using moly assemble lube?

[beatnikz]

the fsm said use a thin coat on motor oil it spins freely when the bolts aren't torque but as soon as i torque one its really hard to spin

[Sileighty_85]

make sure your bolting the Main Caps correctly as in not fliped around backwards, they will only bolt down one way

[beatnikz]

yea its the right way everything im doing is according to the fsm

[Ceepo]

i would get get some motor assembly lube, alot better than a "thin layer of motor oil" when you trying to build oil pressure when you start the motor that "thin layer of motor oil" will work but i wouldnt risk it, a few seconds without proper lubrication can cause alot of damage...