Author Topic: Wishbone & Threaded Bushing  (Read 1589 times)

CJHenderson

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Wishbone & Threaded Bushing
« on: May 23, 2020, 16:35:06 »
How do I get the wishbone & threaded bushing to align properly to engage both outer and inner threads without jamming short of seating?
1970 280SL/8 W113 101624 miles.
1950 MG-TD
2021 Harley Davidson CVO Trike

PeterPortugal

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Re: Wishbone & Threaded Bushing
« Reply #1 on: May 23, 2020, 19:27:44 »
I had that issue with the upper wishbone at the inner part.

I concluded that something was out of spec with the wishbone as the threaded bushing can't really deform. I bought another wishbone and it was better.

However I found that it was still difficult to pump grease through this particular interface.

Sorry I haven't helped much, just sympathising.

Hope somebody more knowledgeable can help us both out. It really bugs me that greasing is difficult because it locks the movement of the wishbone as the grease is trapped in the cap and won't compress.

Regards

Peter
1963 220se Cabrio
1968 280se Coupe

ja17

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Re: Wishbone & Threaded Bushing
« Reply #2 on: May 23, 2020, 22:15:19 »
CJ, are you having trouble with the inner or outer wishbone bushing?
Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback

CJHenderson

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Re: Wishbone & Threaded Bushing
« Reply #3 on: May 24, 2020, 18:25:28 »
All of it. Upper, lower, inner, & outer
1970 280SL/8 W113 101624 miles.
1950 MG-TD
2021 Harley Davidson CVO Trike

ja17

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Re: Wishbone & Threaded Bushing
« Reply #4 on: May 24, 2020, 19:43:25 »
On the outer lower, I use a "C" clamp to hold the two sides so that the bolt does not push the second side out before threading in.
Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback

PeterPortugal

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Re: Wishbone & Threaded Bushing
« Reply #5 on: May 24, 2020, 21:39:06 »
Hi Joe,

Have you ever come across the problem I have?

The upper inner pivots freely but doesn't take grease well. With a lot of squeezing on the grease gun it comes through and out of the little rubber seal, but only with a lot of pressure behind it. Moving the arm is then difficult because the grease is completely filling the threaded bushing and won't compress at all. With a few pumps up and down it gradually frees off. The other upper wishbone takes the grease really well, easy to pump and comes straight through.

To clarify I have my subframe off the car without stub axles fitted, hence I can pivot the wishbones by hand.

If there is anything to try, now is the time before I refit the subframe to the car.

Regards

Peter
1963 220se Cabrio
1968 280se Coupe

ja17

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Re: Wishbone & Threaded Bushing
« Reply #6 on: May 25, 2020, 00:13:51 »
Peter, Yes very unusual, I would suspect it to be ok. Just needs to break-in a bit.
Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback

PeterPortugal

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Re: Wishbone & Threaded Bushing
« Reply #7 on: May 25, 2020, 15:01:12 »
Joe, Thanks for your reply. Makes me feel better about it.

CJ good luck sorting yours out.

Regards

Peter
1963 220se Cabrio
1968 280se Coupe