PEC Posted January 17, 2022 Share Posted January 17, 2022 Dear All,I have noticed a dry yellowish mustardy yoke leak around the bolts at the junction of the front lower wishbones with the upright assembly, both sides of the car.Would you have any idea what this can be about? Thank you very much Link to comment Share on other sites More sharing options...
Beagler Posted January 17, 2022 Share Posted January 17, 2022 Could it be emulsified grease from ball joints which have had water ingress. Link to comment Share on other sites More sharing options...
Leadership Team SLR No.77 Posted January 17, 2022 Leadership Team Share Posted January 17, 2022 Is the car new to you with this or has it appeared while you've owned the car? To me it looks like white grease, often sprayed onto door hinges etc.Stu. Link to comment Share on other sites More sharing options...
Area Representative Geoff Brown Posted January 17, 2022 Area Representative Share Posted January 17, 2022 That is the spherical bearing in the lower wishbone. It is a pre lubricated bearing not needing the requirement for further lubrication.I suggest cleaning off with any good brake & clutch cleaner then re inspect the area. Link to comment Share on other sites More sharing options...
SM25T Posted January 17, 2022 Share Posted January 17, 2022 Does look like white spray grease as suggested by Stu Link to comment Share on other sites More sharing options...
Leadership Team SLR No.77 Posted January 17, 2022 Leadership Team Share Posted January 17, 2022 It's a pre-lubed spherical bearing but it's also in a small well that can remain damp and cause issues. I had steering that had become vague so I started adding a drop of oil to the spherical bearings a few times through the year, it keeps the steering lighter and more consistent. Definitely worthwhile maintenance, although I was really surprised that the bearings getting tight could have such a profound effect on the steering feel! This is the reason why I'm questioning whether it's white grease, although oil works better.Stu. Link to comment Share on other sites More sharing options...
Area Representative Geoff Brown Posted January 18, 2022 Area Representative Share Posted January 18, 2022 White grease will not invade the close tolerance between inner & outer bearing parts. As mentioned above a light drop of thin machine oil or WD 40 once in a blue moon will keep things in good order. Link to comment Share on other sites More sharing options...
Beagler Posted January 19, 2022 Share Posted January 19, 2022 Uprating brakes so removed hubs. I see this bottom wishbone bearing but no gaiter or clear about lubrication. How does this bearing work. Not keen on oiling or greasing as exposed oil or grease + road dirt = grinding paste. Link to comment Share on other sites More sharing options...
SM25T Posted January 19, 2022 Share Posted January 19, 2022 Grease attracts grit ... that's a no-no. Light oil ok. Link to comment Share on other sites More sharing options...
ScottR400D Posted January 19, 2022 Share Posted January 19, 2022 It's a stainless/PTFE spherical bearing so normally wouldn't need lube and as you say, oiling can attract dust and cause wear. Having said that, if it regularly gets wet then that's not good either. I would say carefully drying if it does get wet, the occasional v light lube with a water dispersing oil, followed by drying off as much of the excess as you can could be a decent way to go. I have top rose joints as well so pay special attention to them. Link to comment Share on other sites More sharing options...
Beagler Posted January 19, 2022 Share Posted January 19, 2022 Have some wax bicycle chain lubricant that the manufacturers claim lubes the chain without attracting dirt, may try a little. Link to comment Share on other sites More sharing options...
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