Starter motor problems (grey)

[newman]

I suspect my starter motor may be the new problem I'm having starting my ute lately, its making a loud clacking noise and it started a few weeks ago. At first I thought the battery so I have charged it a couple of times, but last night I was going to get the ute out to visit a mates shed and all I got was a clacking barely turning starter and flat battery
I've got a couple of spare starters (condition unknown) that I'll test today they were part of the spares I got when I brought the ute, just thinking back and even though the grey has the pertronix ignition conversion it has been winding over longer before firing this is about the time the starter began playing up.

Could a faulty starter be draining voltage from the ignition circuit??

Mick

[OldGMHolden]

G'day Mick,
Without actually checking it myself, it's a bit tricky diagnosing the fault, but I suspect the battery.
This time of year is a real killer of batteries.

Try this....

Turn the headlights on, then try to start the motor.
If the headlights go REALLY dim, it's more than likely the battery.
If the lights stay fairly bright, but you hear the clacking noise, it will be either the brushes or solenoid contacts.

Have you tried another battery, or jump starting with jumper leads?

Cheers,
Gaz

[newman]

Gaz,

Had time at lunch to drop the starter out, the brushes were worn down pretty well but the commutator wasn't marked so that was good. I've had no luck sourcing brushes on the internet so as a stop gap measure I've shimmed the old brushes with 1.6 brass so the retaining spring clip doesn't arc out and cause more damage.
I'll put it back together tomorrow and see what happens, but back to my original question.

Could a faulty starter be draining voltage from the ignition circuit??

Mick

[OldGMHolden]

G'day Mick,
It is possible that a faulty starter motor could lower the ignition voltage (on a good battery), but it's doubtful if the starter would turn the engine over with such low voltage.
Cable and connections would also get very hot.
Do you have access to a voltmeter (multimeter) ?
Cheers,
Gaz

[newman]

Yes I do, was thinking I would check for continuity etc when I drop the starter back in. Where do you find brushes to suit there is a listing on Ebay for two but they are for FX/FJ six volt that only run two brushes not four like the FE onwards greys.
I don't even know if they are compatible I'm thinking they must be bigger given they only had two brushes.

Mick

[newman]

Just back from a road test after getting the ute up and running Fitted the starter back in this morning with the shimmed brushes and it started straight up, I guess the starter motor brushes wearing down is such a gradual process its hard to detect until you have starter problems.
Just a side issue, the new extractors I fitted six months ago were a real neat fit as far as changing starter motors. Almost an interference fit but glad I didn't have to take the extractors off

Mick