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Stoddy
Trainee


Joined: 13 Sep 2019
Posts: 51
Location: Wye Valley


PostPosted: Mon Nov 04, 2019 9:35 pm    Post subject: Strange starter motor sound when hot. Reply with quote

Hi,

I noticed during my lovely Sunday drive, that on re starting the car after a short stop, the starter motor sounded slightly odd. It’s a sort of choking sound when the car is hot.
When it’s cold, no problem, it’s just when it’s hot.
Is the starter about to give up? Or is it maybe an earthing issue?
Any thoughts gratefully received!

Stoddy Question
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2002 996 C2
167, 700 grin miles.........thus far.
 
  
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maldren
Suzuka


Joined: 07 Oct 2016
Posts: 1179



PostPosted: Tue Nov 05, 2019 5:29 pm    Post subject: Reply with quote

Alex took his apart and re-greased the rear bearing to stop a squeal that mine had too.

I took mine apart and found that the rear bearing grease had dried up. I took the motor apart and also re-greased the gearing but decided that I didn't want to have to do it again so I fitted a new motor (courtesy Eurocarparts) for about £130 exchange.

It's not too bad a job as long as you have a set of wobble bars as socket set extensions.
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2003 996.2 C2 Coupe Arctic Silver
 
  
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Stoddy
Trainee


Joined: 13 Sep 2019
Posts: 51
Location: Wye Valley


PostPosted: Tue Nov 05, 2019 6:09 pm    Post subject: Reply with quote

Oh ok, yeah, I guess the sound could be a bearing? Well I reckon for that price, I’ll exchange it.
What’s a wobble bar by the way Mike?
Thanks for the info!

Rich.
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fot0
Newbie


Joined: 03 Apr 2018
Posts: 15



PostPosted: Tue Nov 05, 2019 9:26 pm    Post subject: Reply with quote

"choking" as in lethargic or difficult to start when hot? More likely to be positive cable running from jump post connecting to starter and alternator. The cable eventually breaks down with age and heat.
 
  
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Stoddy
Trainee


Joined: 13 Sep 2019
Posts: 51
Location: Wye Valley


PostPosted: Tue Nov 05, 2019 10:39 pm    Post subject: Reply with quote

Ooh, that sounds bang on!
Where’s the jump post??
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The world is flat
2002 996 C2
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maldren
Suzuka


Joined: 07 Oct 2016
Posts: 1179



PostPosted: Wed Nov 06, 2019 8:19 am    Post subject: Reply with quote

These are what I bought:


The extensions have a curved profile that allows them to be used at an angle, more easy to control than UJs and ideal for working around Porsche (and other) engine bays.
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Mike
2003 996.2 C2 Coupe Arctic Silver
 



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Stoddy
Trainee


Joined: 13 Sep 2019
Posts: 51
Location: Wye Valley


PostPosted: Wed Nov 06, 2019 9:49 am    Post subject: Reply with quote

Brilliant thanks!

Rich.
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fot0
Newbie


Joined: 03 Apr 2018
Posts: 15



PostPosted: Wed Nov 06, 2019 9:33 pm    Post subject: Reply with quote

Stoddy wrote:
Ooh, that sounds bang on!
Where’s the jump post??


As you look at engine - top right. Plastic rectangle box that opens to reveal the +jump post. This is where the starter cable terminates.
 
  
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Stoddy
Trainee


Joined: 13 Sep 2019
Posts: 51
Location: Wye Valley


PostPosted: Wed Nov 06, 2019 9:36 pm    Post subject: Reply with quote

Great stuff, I’ll try and look tomorrow.

Cheers!


Rich. 👍👍🤘
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The world is flat
2002 996 C2
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Stoddy
Trainee


Joined: 13 Sep 2019
Posts: 51
Location: Wye Valley


PostPosted: Sun Nov 10, 2019 2:04 pm    Post subject: Reply with quote

Ok, can’t see any sign of cable breaking down on the jump post, I guess it’s more likely that it’s down near the motor it’s self?



Rich.
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fot0
Newbie


Joined: 03 Apr 2018
Posts: 15



PostPosted: Sun Nov 10, 2019 7:57 pm    Post subject: Reply with quote

It won't be visibly damaged, but sounds similar to an issue I had. I suspect where the copper cable is joined/crimped at the terminals it will eventually lose conductivity with constant heating and cooling. An indie should be able to test for you with a multimeter.
 
  
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Stoddy
Trainee


Joined: 13 Sep 2019
Posts: 51
Location: Wye Valley


PostPosted: Sun Nov 10, 2019 11:01 pm    Post subject: Reply with quote

Ok cheers. I’ll have to get it sorted as it very nearly didn’t re start today when hot after I’d stopped.
In Manchester now.



Stoddy
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kurlykris
Magny-Cours


Joined: 30 Jun 2014
Posts: 2545
Location: Warwickshire


PostPosted: Sun Nov 10, 2019 11:24 pm    Post subject: Reply with quote

If I was remaking the joint/crimp lug or replacing the cable ( as an electrician by trade ) I would tin ( solder) the stripped cable end, before crimping on the new lug, then heat the new joint/lug up with a blowtorch and run some more solder into the joint, that way it will never happen again in future Thumb
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