- Joined
- Jul 27, 2009
- Messages
- 107
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Hi Gents,
recently rebuilt my mk3 . when reinstalling the primary side inc starter parts I decided not to change the sprag as i didn’t know if it was ok or not, bu it looked fine. The starter is upgraded 4 bush with upgraded leads.
on completion it all worked very well for the first 800 miles and many many starts. Then, it started to spin with a whirring sound but not turn the engine,it would turn it though occasionally. No worries I thought ,strip it and change the sprag. When I removed the primary cover the rotor nut was off , I had torqued it but not thread locked it ,I assumed this may be to blame. As I had already purchased the spa rag from AN I decided to change it anyway although the old one still looked ok. I torqued it all up again with thread lock and before refitting the cover tested it.All seemed fine and on a number of further starts it started straight away. Today I rode it for the first time, stopped for a coffee after about 60 miles. When I tried to restart it it just whirred again. I can see through the timing hole that the rotor nut is fine. Both sparags were the 18 bearing type. Any ideas what else it could be please?
Thanks .
recently rebuilt my mk3 . when reinstalling the primary side inc starter parts I decided not to change the sprag as i didn’t know if it was ok or not, bu it looked fine. The starter is upgraded 4 bush with upgraded leads.
on completion it all worked very well for the first 800 miles and many many starts. Then, it started to spin with a whirring sound but not turn the engine,it would turn it though occasionally. No worries I thought ,strip it and change the sprag. When I removed the primary cover the rotor nut was off , I had torqued it but not thread locked it ,I assumed this may be to blame. As I had already purchased the spa rag from AN I decided to change it anyway although the old one still looked ok. I torqued it all up again with thread lock and before refitting the cover tested it.All seemed fine and on a number of further starts it started straight away. Today I rode it for the first time, stopped for a coffee after about 60 miles. When I tried to restart it it just whirred again. I can see through the timing hole that the rotor nut is fine. Both sparags were the 18 bearing type. Any ideas what else it could be please?
Thanks .