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MG MGB Technical - Lubricating window flex channels?

What product works best for allowing the windows to slide easily in the channel? I'm getting mixed advice about WD-40, silicon spray, and Armor All.
Dan Hiltz

WD-40 is an absolute no. WD-40 is a water displacement product, NOT a lubricant. Further, over time it becomes sticky and will make matters worse. I would probably opt for the silicon spray, but I have never had a problem with the windows sliding easily in the channel, so have never had to find a lubricant for this particular application. I think that before applying any product, I would check that the channels are aligned properly and not binding anywhere. Cheers - Dave
David DuBois

Never needed to do mine, but vaseline or parafin wax would be my choice.
Stan Best

Thanks Dave and Stan. It's nice two have two of the experts weigh in!
Dan Hiltz

White Silicone Grease. Post-dates MGB original production, but worked brilliantly on my MX5 slow windows due to dry rubbers and does a great job on the MGB's Britax sunroof sliders. It doesn't dry out or damage rubber like 'old' lubricants and is available in easy-to-apply aerosol cans.

Various brands available, but should be easily obtained at your local automotive accessory shop.

http://en.wikipedia.org/wiki/Silicone_grease
Mike

graphite powder worked a treat for me. I'd avoid anything that is sticky!
Michael Beswick

I've used white lithium grease in the past. That worked well. I wouldn't use Armor All for anything!
Simon Jansen

Silicone spray is the only way to go
It's clean and it works a treat Willy
William Revit

Don

Are you sure that it is the channels that are causing the problem? Have you checked the winder, linkage and the rest of the mechanical mechanism? This assembly can get rather stiff over the years.

Larry
Lawrence Hallanger

NAPA has a product called Sil-Glide which works great. Silicone base lube in a toothpaste like tube uabout $5.
T. Murphy

You can tell if it is the channels or the mechanism. Wind the window half-way down, then push the glass down a bit more. If the winder then turns easily before it starts moving the glass again, then the mechanism is OK and any problem is probably the channels. The same is true winding up a bit, then pulling the glass up (but not hard enough to pull it out of the lifter channel ...). Of course, both could be stiff ...
PaulH Solihull

This thread was discussed between 01/05/2011 and 15/05/2011

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