healeys
[Top] [All Lists]

Re: Polyurethane Bushing Lube??

To: scott willis <ahpowered@hotmail.com>
Subject: Re: Polyurethane Bushing Lube??
From: Dave & M <rusd@velocitus.net>
Date: Thu, 02 Feb 2006 15:42:11 -0700
Hi Scott,

My personal opinion only. If you are talking about suspension bushings:
The original rubber bushings were intended to be firmly clamped between 
moving surfaces. The metal center parts bonded to the rubber. Flex in 
the rubber allowed for movement between the parts. No sliding motions 
which would require lubrication.

When you convert to hard bushings which cannot flex, the bushings now 
have to accommodate the movement of sliding parts. Parts which are 
designed for this movement are usually equipped with grease fittings.

You can use almost any lube when you assemble the bushings. Probably, a 
Moly grease would provide the best results. It will only be temporary 
though. Since there are no grease fittings, the parts will eventually 
need to be disassembled & relubed. If this is on a frequently 
maintained/rebuilt  race car, no problem. For a street car a definite 
nuisance, unless you just put up with the squeeks.

I really think that hard bushings on a street car cause more problems 
than they cure.  You didn't ask, but the lower rear suspension mount on 
Healeys is out of alignment with the suspension movement from the start. 
Hard bushings in this location are likely to cause unwanted suspension 
bind. The original rubber bushings accommodate this misalignment by flexing.

Regards,
Dave Russell
BN2

scott willis wrote:
> Hi folks,
> 
> Anyone know where I can get some lube locally that will work on these VB 
> bushings? I want to install them Saturday so I can't order via mail etc.
> 
> NAPA says they have a spray but can I spray enough on them to keep them 
> from squeaking?
> Cheers,
> Scott
> Mashed BN7
> 1500 MGA
> GT6+




<Prev in Thread] Current Thread [Next in Thread>