(PLEASE HELP) car sometimes wont start has to be turned over by hand

[chaff]

hey guys ive just rebilt my vl 5LT because it wouldnt start sometimes. it has to be turned over by hand just a little bit then it will turn over. i have put a new startor motor in it and new flex plate also have just rebilt the engine and it still wont start you have to turn the engine over by hand just a little bit before it will start. saying that if i jump it of the starter motor it will start evertime anyone had this problem or no how to fix this problem.

help muchly appreciated thanks guys dale

[Krisp]

how does the starter motor gear mesh into the flex plate ring gear. might be too tight and require shimming.
take the starter motor off and turn the key and see if the starter motor rotates every time

[chaff]

ok cheers ill check that out now

[detox_nath83]

u say if u jump it it goes fine...

hows ur battery man??? and tighten ur battery clamps

could be something stupid like this.

what u mean by "turn it over by hand"..... U have a bionic Arm to turn the crank by hand?

[nasty1]

maybe its like a model t ford with crank start lol

[chaff]

i think the starter motor is throwing out as it just burnt out a brand new hi torqe stater motor. so i think it may have to much power running to it at the moment.

[87RB30VL]

Just startin' the Ol' VL:

[jatsvl]

i think the starter motor is throwing out as it just burnt out a brand new hi torqe stater motor.

I think maybe your starter motor fluid is low, and too much unsupressed power is producing excessive force.
check your levels and take the crank handle off before starting, or it may fly through the radiator and cause you to lose all the radiator acid.