Rear bearings excessive play - 310R

33 posts / 0 new
Last post
JonPivo
JonPivo's picture
Offline
Last seen: 6 days 12 hours ago
Joined: 13/06/2019
Rear bearings excessive play - 310R

Hello,

Popped my 310R in for its first MoT this morning and was surprised to find it fail due to excessive play in the rear bearings.  I last checked about 6 months ago and they seemed fine.

A couple of questions:

1. It feels odd that both bearings fail at the same time and after less than 5k miles.  It has had a couple of track sessions but otherwise it is had an easy life. Is there something that I could have done wrong during the build that could have contributed to the failure, or is it possible the bearings were not fit for purpose in the first place?

2. How easy is to change the bearings myself and does anyone have any tips/advice on how to do it?

Thanks,

Jon

SM25T
SM25T's picture
Offline
Last seen: 2 hours 44 min ago
Joined: 17/04/2014

Redline can sell you a carrier with the bearings already fitted Bow

Wrightpayne
Wrightpayne's picture
Offline
Last seen: 3 hours 43 min ago
Joined: 17/04/2014

I seem to recall an issue with insufficient grease being packed in (though could be fronts?) Perhaps worth a google search.

The later single bearing units look interesting (mine are two individual bearing units per side) that as SM25T states can be supplied with a new bearing carrier.

Ian

ScottR400D
Offline
Last seen: 2 hours 54 min ago
Joined: 23/08/2015

#3 yes that issue was more about the fronts. 

CC do, or used to I believe, recommend a 12 month strip and regrease for the old type rear bearings though that sounds over the top if they're greased properly in the first place. 
 

 

L7C
TomB
Offline
Last seen: 2 hours 47 min ago
Joined: 17/04/2014

Worth fitting the new, sealed for life bearing if your having to buy new ones anyway.  Lighter too.  

Amos91
Amos91's picture
Offline
Last seen: 1 hour 30 min ago
Joined: 23/08/2021

Make sure your hub nuts are tight. If they are loose it would transfer as play in the bearing. 

EDIT: I'd have thought you have the new type of bearing already so would be odd to have play, they are decent quality SNR bearings. So make sure they are torqued up to spec.

Olly Amos - 2008 Caterham Superlight Sigma 150

Beagler
Beagler's picture
Online
Last seen: 14 min 35 sec ago
Joined: 24/07/2021

Could the outer bearing have spun in the carrier and created play. Unlikely both but if they have had insufficient grease they may have. All should be revealed when you strip it down.

2019 310S 1.6 Sigma

JonPivo
JonPivo's picture
Offline
Last seen: 6 days 12 hours ago
Joined: 13/06/2019

Thanks for the comments so far.  To confirm it is a 2019 car so has the newer sealed bearings.  The hubs were torqued up as per the manual and assume (always dangerous!) would have been checked at the post build check.

 

Jon

Beagler
Beagler's picture
Online
Last seen: 14 min 35 sec ago
Joined: 24/07/2021

JonPivo, Please come back with your findings. My car is same year and done 11500 mls.

2019 310S 1.6 Sigma

Tom_Arundel
Tom_Arundel's picture
Offline
Last seen: 4 hours 46 min ago
Joined: 17/04/2014

I would have thought that you would have felt the `tramlining` if the rears were slack. Is it possible that the MOT report is wrong and it should say the front bearings? Front bearings frequently need adjusting and it`s easy.....Jack it up and give them a rattle!

OldAndrewE
OldAndrewE's picture
Offline
Last seen: 3 hours 48 min ago
Joined: 29/04/2020

Have you tested the play in the bearings since the MOT yourself?

Andrew

1985 S3 1700 XFlow.  Undergoing full restoration