Engine swap and now new motor wount start

[v6vpute]

Hey guys i just finished my engine swap everthing bolts up all the wiring in all the light come on when on acc but motor wound start or even turn over could it be a dirty earth?

[Pub247]

what engine you put in did you modify any wiring?

[kelvin2164]

I had something similar. Can't remember what it was, but it was simple. I just metered the wiring from the starter motor back and found it. A simple test is to short out the pins on the starter relay as a starting point. That will tell you a lot. You will need the wiring diagram.

[v6vpute]

I put a series 1 motor with series 2 top half and didnt change any wiring wired up the same way as i undid it as far as i know realy got me stuck with whats wrong

[FXST01]

Checked all your fuses and relays? Especially the large engine fusible link in the engine bay?


Just a thought, but is it an auto? Is it in park or neutral when you try to start?

[kelvin2164]

You say the motor doesn't turn over when you turn thr key? Then there are 2 circuits ti check. 1. From the key to the start relay and 2. power from the relay to the starter.
Have someone hold their finger on the start relay while you turn the key. You should feel it click in. If that's OK then it's on the secondary side of the relay.
You have plugged in ALL the plugs around the battery area. This is where the power goes to the starter solenoid.

[v6vpute]

Ok have checked that the relay click so it must be in the loom sumwere?

[IBLOWN]

As said above check your inhibitor switch for the shifter.

[v6vpute]

ok tryed to start it in every position on the shifter ans still no go

[topbloke]

if you have a spare wiring loom from the old engine lay it out on the ground and start from one end and go through and make sure you have connected every one . worked for me

[v6vpute]

Well i have the on out of my red vn and the origanal loom was all cut up and thanks for all the help guys

[FXST01]

Hey guys i just finished my engine swap everything bolts up all the wiring in all the light come on when on acc but motor wound start or even turn over could it be a dirty earth?

Is the battery a good one with plenty of charge?
Try connecting an earth jumper lead from the negative side of the battery to some place good on the motor/chassis and try to start it to rule out crook earth.
Swapped around some of the relays?
Is the starter connected? two wires a big red one (bolts on) and a smaller violet one (clips on i think)

[delcowizzid]

if the start relay clicks when you turn to crank look at the 2 plugs by the battery that join the engine loom to the relays some models the crank wire is in a different slot

[UNDERCOVER HQ]

Mate check the little black lead thats goes from the battery to the car. I have had the same problem.

[v6vpute]

Hey guys got the car working had a earthing problem and broken wire fixed that then the car started sept then the starter motor stoped working properly