Re: 86 4000S bushings

[steve.powers@spdg.COM (Steve Powers)]

it has been said:
> 
> From: SELECTTRA@aol.com
> Date: Tue, 12 Mar 1996 05:35:37 -0500
> 
> Anything is possible with a big enough hammer (to put them in), a bench
> gringer (to dress up the end of the new bushing before installation and a
> torch (to blow out the old ones and breathe in noxious gases)!  We stock the
> bushings, do this procedure daily and a whole lot more.......

or...

you can use liquid nitrogen, a 16 oz hammer, your freezer and some grease
(not elbow)

use the nitrogen to quickly freeze the rubber. a sharp tap will remove
the inner bushing. use a hacksaw blade or a chisel to fold the bushing
shell in on itself. (meanwhile, you are storing your new bushings in
your freezer - DON'T USE NITROGEN ON THEM!!!)

you grease the outer housings of the bushings and press them in with
either a vise w/ sockets, rubber mallet and block of wood, or some
combination of both. since your A-frames are at room temperature,
the bushings should go in nicely. for even easier install - heat soak
the A-frames at about 150 degrees FAHRENHEIT!! on a cookie sheet in
the oven. if you remove the bushings from the fridge, do it one at
a time (otherwise they'll warm up and expand)

the temperature difference causes just enough dimensional change to
allow fairly easy fitting - this is how alot of transmission bearings
are changed..

that's how I changed the bushings on my '85 4kq... (no fumes, no fuss)
(and the liquid nitrogen makes a great fog when you pour it out)

steve powers ... '95.5 S6 ... '95 620RX/C ... '91 K100RS-16V ... '88 R100S
spowers@spdg.com * stratos product development group * seattle, washington

"I must tell you that these are strong Bavarian beer-carrying horses, not
 the smaller ones of Italy." (Ferdinand Piech)