Author Topic: suspension bushes  (Read 3334 times)

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michaelodonnell500

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suspension bushes
« on: May 22, 2006, 12:11:07 AM »
Hi. I am in the process of replacing al the ruber bushes on my 73' 500. I seem to found made a successfull tool using some threaded bar readily available from Homebase along with some sockets from my toolbox. I will try the other corners of the car and if all goes well I'll write up a step by step as i lost a day trying to figure out where to start!
I will add some photos as well as this will make it easier for anyone who's mad enough to attempt the same job!

Thanks

Michael
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michaelodonnell500

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bushes update
« Reply #1 on: June 20, 2006, 11:07:10 PM »
If anyone plans on replacing the bushes on the front and rear suspension I have recently changed all with success.
It took a while to do the first few, but it got quicker as i learned how to do it right.

The first point i would like to make is that i chickened out with the rear ones and left them with a garrage. The arms were already off the car. After a week he had only done i arm and one of the bushes was so badly fouled that it cannot sit flush. Only take it to a garrage if you trust them.
The good news is it is quite easy. THe front can be done in about a day, the rearmay take a little longaer as it is best to take the swing arms off.

TOOLS)
(Plan A)
M12 threaded bar
a bag of M12 nuts
M12 washers
a selection of sockets
"spanners for M12 bolts
Hammer

(plan B)
small blow torch
Hacksaw
Screwdriver (stright blade)
Hammer


1) If you can remove the stub arm completely then do so, it makes life a lot easier when swinging a hammer. you can remove the drum without diconnecting the brak as long as you put it on a block so the flexi hose isnt strained. This will allow complete removal of stub axle.
(The rear is not as simple. When disconnecting the brake pipes you can avoid losing too much brake fluid by clmping the flexi hose with mole grips. Use wooden dowels to prevent the teeth from damaging the rubber)

2) Remove the top stubb axle bolt. This will allow acess to top bush if you dont want to play with the brakes

3)chose a socket that is lager than the bush, and one that is the same diameter or slightly smaller tha the bush outer. It will be used to drive the bush it so it has to fit in the hole. If it is the same diameter, it may get stuck, but it doesnt matter ass you can attach the socket drive and turn it out with ease.

4) Chose a sockt that the bush mill fit inside (e.g. if the bush is 20mm, use at least a 21mm socket)

5) place each socket either side of the bush and feed threaded bar through, use plenty of washers and some very vy onew if you can find them or the washers will just bend into the end of the socket.

6) Use a lock nut at one end and a free nut at the other end. Using open ring spanners tighten and see if this will provide enough force. If not, find an assistant to hit the lock nut end with a hammer while you are turning the spanner. Although labour intensive, this will remove the bush iwthin about 10 mins. I  do recommend a second person for this unless you can use a vice.

This method applies to all other bushes.

Plan A did not work with the rear bushes hence ....

Plan B

1) Stub axle must be removed as described.

2) Apply heat to the appropriate areauntil the rubber melts out and the inner tube falls out completely.

3) Use a hacksaw to cut a groove in the outer of the bush. Slow and steady is the key. If you hac at it you will cut the outside well but leav the inside proud which is no use.

4) Use a screwdriver and hammer and tap the outer bush shell out IF YOU HAVE CUT PROPERLY this will be very easy.

I would not recommend plan B for the front spring as i'm not sure what effect the heat will have on the spring.
When using this method on the stub axles it will melt all of the grease out of the stub axles, but maybe this is good if you need to regrease!
I managed not to melt the rubber seals either.

Any questions please ask. I've had to to alot of similar jobs to this car and may be of help to anyone whos doesnt want to pay for a mechanic either!

Michael
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michaelodonnell500

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typos!!
« Reply #2 on: June 20, 2006, 11:10:43 PM »
Just to clarify. In section 5) i suggest the use of heavy duty washers to prevent the normal ones from bending into the end of the socket
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ChrisRLewis

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suspension bushes
« Reply #3 on: June 20, 2006, 11:38:32 PM »
That's great info, nothling like first hand experience.

Which bushes did you change? 9+33?

michaelodonnell500

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suspension bushes
« Reply #4 on: June 21, 2006, 12:49:15 PM »
I changed no 33 and the one in the leaf spring eyelet which isnt numbered on the diagram.
I did also change no. 9, but when i searched for prices, one company was supplying the bushes in new wishbone arms for about £1 more than a similar company was charcing for the bushes alone, so i went for new!
It pays to shop around for these things

Michael
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Flying Carpet

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Re: suspension bushes
« Reply #5 on: May 14, 2017, 12:15:15 AM »
Thanks, some great information here!
Read through after failing to remove rear suspension bushes with a small press - so Plan B swings in to operation!
Decided to drill the rubbers out of mine rather than burn them out (less messy!), and ended up putting a couple of cuts in the outer shell just to make it easier for the shell to come out.
Took a couple of hours for the first one, but got it down to half an hour for the next three!

Anyway, here's some pics of our efforts - hope they're of some help to anyone else facing this job!




Used boiling water on the bush housing, and chilled the new bushes in the freezer before fitting, with a good smear of grease on everything for good measure... Nice new bushes all ready to go!