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Help separating the dowel and strut on rear hydrolastic

Posted: Sat Jul 11, 2020 8:22 pm
by 65MK1S
Anybody have any words of wisdom on how to separate the dowel and strut from
the rear hydrolastic displacer units? Preferably WITHOUT doing damage to the
unit :)
Thanks
Kent

Re: Help separating the dowel and strut on rear hydrolastic

Posted: Sat Jul 11, 2020 9:05 pm
by Dearg1275
Heat the strut with a wet towel over the displacer. Try and get the boot off first over the knuckle end of the strut. If no joy to start with, alternate heating and cooling to shatter the rust holding them together. Strut in the vice and a narrow rod in the cone to tap it off.

If you can inflate the displacer all the better, because you can then remove the cone and keep the displacer out of heats way. If you just keep pumping it up the displacer will ballon out until the cone can be lifted out. To get it back in pump it up again, hold the cone where it belongs and let the displacer slowly deflate. The cone will get sucked back in almost like magic.

D

Ps some dowels are spline fitted in the cones and should stay in the cone. They often don’t.

Re: Help separating the dowel and strut on rear hydrolastic

Posted: Sat Jul 11, 2020 9:33 pm
by 65MK1S
Thanks, are the dowels supposed to be hollow? Mine either are not or are plugged
with something. I can make a dowel and strut. If I have to cut it off, where would I
cut to do the least damage to the dowel?
Kent

Re: Help separating the dowel and strut on rear hydrolastic

Posted: Sat Jul 11, 2020 9:35 pm
by 65MK1S
Any pic's of taking a displacer apart?

Re: Help separating the dowel and strut on rear hydrolastic

Posted: Sat Jul 11, 2020 11:35 pm
by Daz1968
I pulled the cone out of the hydrolastic unit and separated it from the dowel in the vice, then slightly inflated the bag and put it back in. If that makes sense, not sure if I should have done it but I had no ill effects

Re: Help separating the dowel and strut on rear hydrolastic

Posted: Sun Jul 12, 2020 8:31 am
by Dearg1275
65MK1S wrote: Sat Jul 11, 2020 9:33 pm Thanks, are the dowels supposed to be hollow? Mine either are not or are plugged
with something. I can make a dowel and strut. If I have to cut it off, where would I
cut to do the least damage to the dowel?
Kent
The dowels are solid.

D

Re: Help separating the dowel and strut on rear hydrolastic

Posted: Sun Jul 12, 2020 4:16 pm
by 65MK1S
Thanks, Dearg1275
Kent