starter motor??

[bondingi]

Has anyone had any problems caused by the starter motor? I wondered is the weak spark I am getting due to the starter motor as I have explored all other areas.

[GreenV8S]

Has anyone had any problems caused by the starter motor? I wondered is the weak spark I am getting due to the starter motor as I have explored all other areas.

What is the battery voltage while the engine is cranking over? What other areas have you explored?

[bondingi]

Across the coil it is about 3 volts when cranking. Have done all the earths, cleaned and checked all connections, but have not looked at the starter motor yet. I did read an old thread about the connections to the tacho could cause a problem?!!?

[GreenV8S]

bondingi said: Across the coil it is about 3 volts when cranking. Have done all the earths, cleaned and checked all connections, but have not looked at the starter motor yet. I did read an old thread about the connections to the tacho could cause a problem?!!?

3v is way too low, you should have about 6v normally and 9v when cranking. This suggests the ballast resister is not being bypassed while you're cranking - I'd suspect a wiring fault?

Hope this helps,
Peter Humphries (and a green V8S)

[granty]

The main live comes via the starter motor. Try that connection there.

[bondingi]

Cleaned up all the connections and all of a sudden I am getting a fantastic spark. The downside is the fuel pump 25 amp fuse now blows everytime I crank the motor! When will this end.

[GreenV8S]

bondingi said: Cleaned up all the connections and all of a sudden I am getting a fantastic spark. The downside is the fuel pump 25 amp fuse now blows everytime I crank the motor! When will this end.

I would expect the pump to cut in when you start cranking, so this could mean that there is now a wiring fault in the pump supply, or is it possible you've accidentally mis-connected the wiring after cleaning it?

[bondingi]

if the pump has seized would that cause the fuse to blow? There was only two wires on the starter motor that I cleaned and because of the connections you couldnt mix them up