Sound from the rear-Part II, Bushing not greaed properly Options

[jim_hoyland]

The sound finally went away with an heavier application from the grease gun into the zirks yesterday. I used a heavy duty tractor bearing grease

I have been told that the bushing should have silicone grease on their outer surface and under the flange, which makes sense now. So I'll pull the arms, remove the bushings and try the silicone grease.

The creak started to come back today, albeit less noisy.

Any tip on do's / dont's on greasing bushings will be appreciated

[Eric_Shea]

bow down to and obey

get over yourself

Wonder why I would respond the way I do? (IMG:style_emoticons/default/idea.gif) How about; don't be a condescending &^$#... it's a bad sign.

I asked if you were familiar with these Rich. You replied "Nope". Yet you advised Jim to "bin" them, again, without (admittedly) having any experience with them.

Others are reading your drivel and it is incorrect.

When honed and installed properly these extremely hard "70D Polyurethane (PU)" (not Polyoxymethylene POM) bushings are an "excellent" solution. At $19.00, they're an "awesome" solution. MANY race vehicles use all sorts of "plastic" bushings with much success. Let's learn something about 70D Polyurethane:

Hardness (shore D) ASTM D-2240 70 ± 5
Tensile Strength (psi) ASTM D-638 5,350 (about 2,350 psi higher than your "Shine" bearings)
Elongation at Break ASTM D-638 4% (they basically don't stretch)
Compression Strength (psi) ASTM D-695 NA (they don't compress)
Ultimate Flex Strength (psi) ASTM D-790 9,000 (more than 3x the weight of a 914)

I'm not here to argue with you about the superior properties of 70D polyurethane vs. plastic vs. bronze vs. bearings. I'm saying these are excellent bushings when installed properly and flat out: You are speaking of which you do not have experience or knowledge. I've replaced over 100 of these.

You are speaking of 94D poly bushings; and I agree with you. Those distort, oval and flex and can become detrimental to your car, actually damaging your suspension pan (front) in some cases. They are hard to stop from squeaking as well.

When you lump 70D poly bushings into the 94D category, without having held one in your hand, or installed one (hence talking out of your ass); I disagree with you.

Jim is a big boy and he made a decision already. I'm attempting to help him with his current purchase vs. have him spend more money and have more down time. Was it the only decision? No... it was Jim's decision. It was a great purchase decision. I sell all three types of bushings/bearings you refer to. The bronze and the bearings are "EXCELLENT" solutions as well. That's not what this is about.

UNDERSTAND: What gets me defensive Rich (besides your blatant condescending tone) is when you tell Jim and others reading along to shit-bag something that you admittedly have no experience with. 70D Poly bushings are a great solution. You simply have to know how to install them.

Bow and obey... nice Rich. Get over yourself. (IMG:style_emoticons/default/dry.gif)