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Any tips on install of jimlab bushings...

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Old Mar 20, 2003 | 01:53 PM
  #26  
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Super Snuggles
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From: Redmond, WA
Originally posted by purplelimo
How much heat is adequate vs too much? Is 45 seconds to a minute with a propane torch good enough for each "shot"? Or should I heat it up more?
30-45 seconds at a time. You don't want a lot of heat transfered to the ball joint, so don't let the flame play directly on the ball joint shaft, if you can help it. The cast iron will expand more than the steel shaft, and this should allow the joint to part.

If you think the parts are getting too hot, take a break, spray some more WD-40 on the joint, and try again later.

As an alternative, you could just take the things to a suspension shop (assuming you have the control arm and knuckle off the car) and have them break them apart.
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Old Mar 20, 2003 | 02:15 PM
  #27  
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From: Woodbine, MD
Purple.. I wouldn't heat it too much longer than that. You could maybe go 2 minutes, but if you see the grease inside starting to smoke, you might wanna back off. Definitely worth giving the penetrating lube some time to work, though.


Originally posted by jimlab
...
Make sense?
...
The only goal was a strong metal-on-metal joint with more surface area than a rod end, which will rotate in only one axis, just like the stock bushings. The pivoting was only demonstrated to illustrate the internal construction of the bushings. Hope that clears things up.
Yep, makes sense to me. That's why I was asking. I couldn't see why you would have chosen a pillow ball for that, since you only needed one axis of motion. ..and you explained it. You really didn't...

I'm not on board with the 70-80k service life guestimate though.. My crystal ball doesn't think they'll wear anywhere as nice as the nylon ones. But since you're the only one with these, and the car'll probably never see that many miles anyway, who's to say.
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Old Mar 20, 2003 | 04:14 PM
  #28  
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From: Redmond, WA
Originally posted by newbernd
I'm not on board with the 70-80k service life guestimate though.. My crystal ball doesn't think they'll wear anywhere as nice as the nylon ones. But since you're the only one with these, and the car'll probably never see that many miles anyway, who's to say.
True. My guesstimate was based on the average service life of the OEM pillow bushings in the rear suspension. They seem to hold up pretty well for about 70k miles, give or take. I seriously doubt my car will ever see that kind of mileage though, not even in 10 years worth of summer driving.
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Old Mar 21, 2003 | 06:34 AM
  #29  
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From: Woodbine, MD
Originally posted by jimlab
True. My guesstimate was based on the average service life of the OEM pillow bushings in the rear suspension. They seem to hold up pretty well for about 70k miles, give or take. I seriously doubt my car will ever see that kind of mileage though, not even in 10 years worth of summer driving.

Agreed
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