Leaf Springs

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Leaf Springs

Postby arfisher83 » Wed Aug 26, 2009 8:06 pm

Does anyone here grease/oil or lube your leaf springs? I assume there has to be friction in there. My bus makes a horrible metallic friction sound while driving - especially while off-roading to get to my campsite. I know I have a mirror mount that comes loose often, but I believe this sound is coming from the suspension. Any clues? I've checked already - the leaf springs are not broken. Thanks.

-Adam
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Re: Leaf Springs

Postby the_experience03 » Thu Aug 27, 2009 12:18 am

You can, but I wouldn't. You are going to end up with a mess of oily, greasy dirt. The exception would be the shackles which often times have a gun drilled bolt designed to be greased. The noise you are hearing is very likely rust. The springs usually (though not always on stuff this heavy) have little shim plates between each leaf which prevents them from rusting together, but gives the rust a place to live as well. Driving it might help.

You should hear the sounds my rock crawler makes as the leaf springs go into negative arch. It's just the nature of the beast I think.
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Re: Leaf Springs

Postby arfisher83 » Thu Aug 27, 2009 8:47 pm

Sounds good, guys. WD40 is a wonderful thing. I'll give that a try. Thanks.

-Adam
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Re: Leaf Springs

Postby elkoskoolie » Thu Sep 17, 2009 10:16 pm

WD40 was actually designed as a water displacer, not a lubricant (Water Displacing formula #40). The lubricants are relatively volatile, and are gone quickly. And before they evaporate, the components are one of the best dirt attractants out there. Use WD40 and it'll just make things worse. The only exception is to liberally WD40 the springs. Immediately go for a drive; if the sound is gone you're on the right track. I just bought an add a leaf for my pick-up, and the directions say to use a marine grade or other heavy grease on the anti-friction pads.

My experience is if you thoroughly grease the leaves, yes the grease holds dirt/ crud but on the OUTSIDE; the dirty crud may actually act as a seal keeping dirt and moisture out. For this to work, one would need to dis-assemble the spring pack and lube the interior parts. If you're in a wet environment, slathering grease on the outer portion may seal moisture on the INSIDE, and make matters worse. Take a close look at all the other components......could be steering, brake etc related.
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