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Starter Motor

ORIGINAL: cdickinson

When mine recently failed I had similar symptoms - just a click. On further investigation it was the big earth lead between the 2 main starter components which had corroded and snapped in half.
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Thanks for that - I'll crawl under the car tonight and check that too . I have arranged to pick up the spare from Racerhead. Thanks too edh for pointing this out.
 
Picked a spare up from Andy (racerhead) today and fitted it and solved the problem.
The only issue I had doing this was a large torx bolt, or is called a cheesehead or a triple square?[&:] bolt on one side.

 
I suppose an allen key would fit but the head didn't look like one i'd come across.
It looke like the inside of a ring spaner if that gives an impression.

Since fitting the new motor I have noticed the voltmeter gives a higher reading now. It used to hover just over 12v but now sits closer to the 14v. Is there a reason for this, I thought it could maybe it is earthed better since fiddling with the connection on the started.

Another possible cause for concern I have, if I put the car into the second stage of ignition, the doorlocks open and close, this is the alarm/immobiliser attempting to lock the car when the igntion is started. A few days before the event of the starter motor failing, I was adjusting the Greddy EBC and maybe for a minute or two I left the car in the second stage ignition. After fiddling, I went to start the car but it just went 'click' I thought I had run the battery down as the car had not been run for a few days. I jump started and it went first attempt and fine for the next few days.

Is there any school of thought that the alarm could be damaging the starter?

 
For new try Bert Gear, Eurocarparts, German Sweedish & French or Exeter OPC

For a used item try Porscheapart, Prestige Salvage, CMS Porsche (Definatly breaking a 944) or good old E-bay
 
I push mine out of the garage as it sprays the walls/BBQ/bikes(you name it) with black watery soot when it sta[&:]rts.

Went to start it and the battery had stuffed itself. Swapped it with one off my little `Zuki` offroader [:D].............sorted.

I cant help thinking that the starter motor is on the way out as it is a lazy one and churns v slowly.
 
All the startermotors turn slowly and sluggishly on 944's as it's such a large capacity 4 cylinder engine. I have read that it is a bit of a pig to replace. Not difficult but just awkward (as most jobs on 944's seem to be). I think there is a heatsheild around the starter motor which you have to remove and it is a real pain in the next to remove so i'd allow yourself alot of time to carry out the job.
 
Had one done (starter motor) not Porsche part... a year ago £120, fitted inc VAT. Not on my car but another 944 85 Lux.

Mine turns over much better now with a new Halfords "most expensive" battery.
 
ORIGINAL: andymorris

Luck is not on myside at the moment. Got up nice and early this beautiful morning gave the car a good wash and polish prior to a quick spin to the newsagent and the starter motor packed up outside the paper shop.[:mad:]
Rescued by a good man from the AA.
After it being away with all the other work for so long I'm considering replacing this myself. Can anyone advise the best place for me to get one and are there any issues I should know about prior to doing this?
Cheers
Andy
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I've replaced a couple of these in my time, on two lux's I have owned and one on a friends Lux, a doddle really once its jacked up. If you can get at it to take it off (undo the earthing strap which goes to the body then two large bolts which hold the motor into the flywheel housing) with a bit of persuation it should pop out, mind they are heavy.

A lot of the time the solenoid sticks, just dismantle this part, wipe the inside of the cylinder with some thinners and give it a light coat of grease before placing the solenoid back into the cyinder nine times out of ten this solves it (this might not be making much sense but it will once you look at it)

I have a spare starter in good working order if it would be any good to you however it is from a 1985 lux and I know these are a bit on the large side and were made smaller from 1986 onwards.

If you want any more help just drop me a line and I could email you some photos that may help.

Best of luck.
 
The bolts are countersunk but the heads stick out by approx 2mm, just pulled my clutch apart today. If you take the starter off you should be able to see them through the bellhousing and tighten if needed.
There was no shim on mine.
 
Just measured the ring gear with a bolt in and it does stick out 2mm maximum. perhaps yours have worked loose or other cars have a thinner ring gear/ shallower countersink, I think you should be able to check yours through the starter hole one at a time by turning the engine over with a socket on the end of the crank.
 
There is no countersink here, the bolts are bolted up against the surface of the starter teeth and stick out the full height of the bolt head about 5mm. Can anyone with a turbo confirm if this is as it should be?

There is about 1mm of play in the thrust bearings but if the bolts were countersunk there wouldn't be an issue.
 
So, worn thrust bearing and perhaps the starter ring was put on upside down as the other side was worn. That would explain it.

Engine rebuild time then?
 
The starter ring gears I have seen have all had counter sunk bolts, although they have been early and late 944's and a 968 not the 944 turbo, somebody on here must have done a clutch on a turbo failing that maybe the PET will show or workshop manual.
It does sound like its fitted the wrong way round.
 
Well measured the play in the thrust bearings, roughly, seems like its top end of spec. Anyway the issue is now resolved due to the insertion of a washer between the starter motor cog and the end stop. After re-greasing the starter mechanism its spinning over nicely.

Lives to fight another day. Yeaah!
 
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