Renault starter motor problem

Renault starter motor problem

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Discussion

100SRV

Original Poster:

2,126 posts

241 months

Sunday 21st September 2014
quotequote all
Hi,
Problem with a 1999 Renault 1.6 16 valve petrol engine;
I recently changed the starter motor (pre-engaged type) because of poor starting (worn brushes), new motor much better but occasionally takes a few attempts to start with symptoms of pinion not engaging with ring gear. Car sees daily use on school run so ~ four starts a day. Is it likely that the ring gear could be worn? The sections I could see or fell with the starter motor off felt OK. Any other likely causes for this behaviour?

Motor was a sod to get at, tucked away behind heat shield etc.

100SRV

Steve_D

13,737 posts

257 months

Sunday 21st September 2014
quotequote all
You possibly have the wrong starter.

Steve

shoehorn

686 posts

142 months

Sunday 21st September 2014
quotequote all
The only way to tell is to take the starter back off and inspect the gear ring tooth by tooth all the way round turning the engine slowly as you go.
wear usually occurs in one area over a couple of dozen teeth where the engine predominantly settles when its switched off.

100SRV

Original Poster:

2,126 posts

241 months

Sunday 21st September 2014
quotequote all
Steve_D said:
You possibly have the wrong starter.

Steve
Interesting comment Steve; when I went to the factors for the starter motor there were two types available (always the way!) the one which looked identical had slightly different pinion size IIRC, we checked both replacement motors out and the one fitted looked to be the same as far as pinion / mounting arrangement.

thank you for suggestion!

100SRV

Original Poster:

2,126 posts

241 months

Sunday 21st September 2014
quotequote all
shoehorn said:
The only way to tell is to take the starter back off and inspect the gear ring tooth by tooth all the way round turning the engine slowly as you go.
wear usually occurs in one area over a couple of dozen teeth where the engine predominantly settles when its switched off.
I think following Steve's observation regarding the motor being incorrect I'll take it off and inspect along with a thorough check of the ring gear as you suggest.


Thank you for suggestions!