C/3 window regulator

[Ed P.]

I took apart passenger side door to repair manual window regulator. I found that bolt fell out of fwd window causing all my binding problems. I decided to remove everthing and clean it up and regrease tracks. My question is what grease would you recommend for the window tracks and plastic rollers. Thanks Ed

[Joe L.]

Re: C/3 window regulator

Ed-----

Lubriplate or similar white lithium-based grease.

[Chuck S.]

Re: C/3 window regulator

Joe, I know they used Lubriplate type grease in this application at the factory, so what characteristic of the white grease makes it better for the regulator application than using a lithium based chassis grease? Suppose the General was after minimum winding effort? Maybe because this is a low stress application and it's cheaper than chassis grease?

I am not a big fan of Lubriplate after seeing it dried out in some applications. I could break it off in chunks, and scraped the residue off. I suppose 30-40 years is a long time to expect a grease to maintain its lubricity.

[Joe L.]

Re: C/3 window regulator

Chuck-----

The Lubriplate-type grease is what GM recommended be used for the application in service. So, that's what I use. I think that regular chassis grease would work as well, though.

Just about all greases will deteriorate as you described over time. Basically, grease is a compound made from a soap and an oil. When the oil has "seperated and gone" what you're left with is the soap. That's the "gunk" that you described.