Pagoda SL Group

W113 Pagoda SL Group => Electrical and Instruments => Topic started by: iftykhan on February 12, 2017, 20:07:51

Title: Rev counter noise
Post by: iftykhan on February 12, 2017, 20:07:51

Hi all,
Every year after the winter lay up, the rev counter makes a very strange noise for a few weeks on start up.
It's like a screeching which gets louder as the revs increase.
Any suggestions as to how to rectify would be appreciated.

Ifty

Title: Re: Rev counter noise
Post by: StevenF on February 12, 2017, 20:36:54

This may help.

https://www.sl113.org/forums/index.php?topic=23363.msg167139#msg167139


Regards
Steven

Title: Re: Rev counter noise
Post by: iftykhan on February 13, 2017, 21:29:37

Thanks Steven

Title: Re: Rev counter noise
Post by: alchemist on February 18, 2017, 17:08:02

I had the same situation on my 67 230SL. As the temperature dips, the lubricant become viscous and not be able to lubricate the bearing. The high pitch of noise suggest that the bearing is bad. I had to send it out for service, the bearing was replaced and new lucubration was applied.