jamesbond007ltk
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| posted on 25/3/13 at 03:04 PM |
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Maxi Ball Joint Types - Prone to Failure?
All,
As part of the rebuild o my Locost I decided to replace my rather old and slightly tired lower front ball joints.
I did a lot of seaching and reading on here and other sites and concluded that I should go for QH ones due to their construction being better for the
application (or perhaps miss-application) in question. The demise of QH didn't make my search an easy one with every factor saying
"they've gone bust" (what and all their existing stock has dissapeared??) but did eventually find a pair.
What I failed to understand in my research was that at some point QH stopped making the ball joints using the 'pressed in from underneath'
approach in favour on the 'pressed in from above' method as per most, if not all other manufacturers. So when my new balljoints arrived
this morning I was rather dissapointed to see they had domed bottoms, as per the 'pressed in from above' type. In retrospect what i was
really looking for was NOS from QH. The following pic shows one of my existing joints, from around 1997, and a new one:
[img]
 
QSJ602S
[/img]
I have read enough speculation and theory regardig these joints to cause me concern. What I am yet to grasp, however, is the scale a nature of the
problem. How many have failed and was this gradual or sudden?
I suppose what i really want to know is can i use my new joints safely or should I keep looking?
Rich
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Grimsdale
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| posted on 25/3/13 at 03:49 PM |
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i've had 2 sets of rally design joints wear out in short order - they gradually build up vertical play and the movement gets stiffer. Presumably
they will pull out eventually. Slightly worrying.
My first set were on for a couple of years, 2nd set had play after 1 year.
I now have a set of QH 'underneath' type, which have lasted a while now. Do your existing ball joints have any play / excessive
stiffness?
[Edited on 25/3/13 by Grimsdale]
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jamesbond007ltk
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| posted on 25/3/13 at 05:31 PM |
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The existing ones are OK play and stiffness wise but the dust covers need replacing and the threads are a bit damaged. Will have another look at them
and see if they are salvageable.
quote:
Originally posted by Grimsdale
i've had 2 sets of rally design joints wear out in short order - they gradually build up vertical play and the movement gets stiffer. Presumably
they will pull out eventually. Slightly worrying.
My first set were on for a couple of years, 2nd set had play after 1 year.
I now have a set of QH 'underneath' type, which have lasted a while now. Do your existing ball joints have any play / excessive
stiffness?
[Edited on 25/3/13 by Grimsdale]
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dave r
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| posted on 25/3/13 at 08:37 PM |
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dust covers are available on ebay
I'd love to give my imaginary friend a great big hug,
but this jacket makes it impossible.
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