24v starter motor premature failure

[Cmge]

Looking for some advice/thoughts on the following,
I have a customer that has had a starter motor which has only lasted 2 months.
It is 24v internal solenoid type and the solenoid coil has burnt out.
Should I put this down to just a poor quality part?
Or are there any other issues that could cause this?
The solenoid is triggered through a relay from the key start. Could a poor contact in the relay cause a voltage drop resulting in this failure?
Or if the batteries have been a bit flat could this have resulted in a lower voltage and more current being drawn burning it out?
Appreciate any advice on this as I want to be sure the issue is just the starter itself and not something else causing this to happen.

Thanks!!

 

[V8Druid]

solenoid failing to release after starting? how's the starter? as you say, anything increasing current draw isn't going to help the cause ... and 'spect the customer is never going to admit to crap batteries/continued need to jump start/any other fault ...... if it happens again the cause is obviously an external issue

 

[Cmge]

Thanks for the reply.
No, the starter solenoid has burnt out, open circuit across it so when 24v is supplied to the starter nothing happens. But I'm told the starter is only 2 months old.
I suppose best I can do is fit the new one and measure voltage across the motor as it operates? What would be an acceptable voltage drop under load?

 

[V8Druid]

Thanks for the reply.
No, the starter solenoid has burnt out, open circuit across it so when 24v is supplied to the starter nothing happens. But I'm told the starter is only 2 months old.
I suppose best I can do is fit the new one and measure voltage across the motor as it operates? What would be an acceptable voltage drop under load?

so jump the solenoid contacts and see how the starter functions?

 

[Cmge]

Solenoid is internal on this type of starter

 

[V8Druid]

Solenoid is internal on this type of starter

looks mysteriously like a Bendix inertia to me

 

[Cmge]

I know looks like it , my first thoufhts too but it's not. The smaller positive terminal is for the solenoid. Large stud for batt pos. Contact from this to the motor is internal when the solenoid is energised.

 

[V8Druid]

I know looks like it , my first thoufhts too but it's not. The smaller positive terminal is for the solenoid. Large stud for batt pos. Contact from this to the motor is internal when the solenoid is energised.

interesting unusual one that

 

[Shovelhands]

I’ve had them before , last one I can remember was on an old lister engine. Some thieving little scrote nicked the battery leads and decided that the best way to remove it was bust the terminal off!
Can’t think we’ve got anything with that style starter now?

 

[V8Druid]

I’ve had them before , last one I can remember was on an old lister engine. Some thieving little scrote nicked the battery leads and decided that the best way to remove it was bust the terminal off!
Can’t think we’ve got anything with that style starter now?

Been looking back through some pix ... seemed to recall having one like it on a 240 Cummins .. had a spare on the shelf .... some time ago ... but having looked was conventional 'piggy back' starter

 

[Bri963]

interesting unusual one that

Bedford fitted a similar motor to their own 6 cylinders In the MK’s. When they failed it was usually after the starter had been submerged a few times. Build up of crap in the solenoid.

 

[V8Druid]

Bedford fitted a similar motor to their own 6 cylinders In the MK’s. When they failed it was usually after the starter had been submerged a few times. Build up of crap in the solenoid.

maybe that's where I am recalling one from ... had a Bedford 500 motor in a 12t AT Fairy Onyx 4 x 4 x 4 and a Coles 12/14 truck mount ... wasn't a bad lump in either of 'em

 

[Bri963]

maybe that's where I am recalling one from ... had a Bedford 500 motor in a 12t AT Fairy Onyx 4 x 4 x 4 and a Coles 12/14 truck mount ... wasn't a bad lump in either of 'em

They were good engines, apart from the self-changing oil feature.

 

[V8Druid]

They were good engines, apart from the self-changing oil feature.

they pulled well, but wasn't a fan of the three range, air op. powershift in the Onyx ... horrible bloody box

 

[Left hooker]

Sure it's a 24v system and not a heavy duty 12v setup

 

[Bri963]

I know looks like it , my first thoufhts too but it's not. The smaller positive terminal is for the solenoid. Large stud for batt pos. Contact from this to the motor is internal when the solenoid is energised.

What’s it fitted to?

 

[Mick-the-fitter]

What is it fitted to??

 

[Mogman]

Yea what’s it fitted to

 

[Bri963]

Guess we’ll never know.

 

[V8Druid]

Guess we’ll never know.

'praps the queue for Dover has stretched that far north and he's stuck in it, unable to respond