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front suspension creaking


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Hi, after reading up on this topic I found out that the bushings in the wishbone mostly are to blame. I my case, the left front suspension starts creaking after a few miles, especially in hot weather. The bushings are old (cracking) rubber, so I am thinking about replacing them; is this Moss set adequate http://www.moss-europe.co.uk/bush-set-front-suspension-gac6068x.html?assoc=118478 ?

What tools apart from a spring compressor (and what type of spring compressor do you advise?) are recommended (not counting the obvious spanners)?

 

Thanks for your feedback!

Erik

Edited by earckens
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Go for Superpro or other brand of polybush. They will last you a lifetime. You only need a pair of standard spring compressors and a set of bushing tools but if you're not reasonably equipped and skilled for the job I would advice to get it done by a workshop as there are many safety/security features involved (steering, brakes, etc...).

Edit: While you're at it you may want to replace the trunnions as they are critical for safety.

Edited by Geko
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Erik

With the greatest respect to Geko you are strongly advised not to try to use a pair of standard Spring compressors but get hold of the the correct type of compressor which passes up through the centre of the spring and is very east to use in a safe manner.

Regards

Rog

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+1 on the compressor but you don't need the factory item. All you need is a decent piece of threaded steel rod 15mm diameter or bigger ( I use 20mm) and thick steel plates big enough to cover the holes in the spring pans. A search will find plenty of discussion in these forums on the subject.:

 

http://www.tr-register.co.uk/forums/index.php?/topic/55946-dimensions-spec-of-front-spring-compressor/

https://www.youtube.com/watch?v=7js8y9rMXzk

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Have just done my front suspension. I do NOT advise using standard spring compressor unless you want a couple of broken fingers. Use the proper tool or it is relatively easy make a threaded rod with steel plates and nuts top and bottom because basically that is what the special tool is. A few tips.

1/ The inboard springpan to lower wishbone attachments are studs not bolts. It is very difficult to get onto the nut and the stud will probably unscrew anyway so save loads of time and hassle; just take out the 2 bolts that hold the bumper support to the chassis. The bumper support can then be moved sufficiently out of the way to make life easy. (Spray WD40 on the nuts 30 mins before)

2/ When you put the spring pan back temporally fit a couple of really long bolts ( or 10mm threaded rod) where the middle bolts are. This guides the spring pan up nicely onto the wishbones

3/ I bought a battery impact wrench and it made life a lot easier.

4/ Try and get a friend to help you as you will need 3 hands on a lot of the tasks

5/ Consider changing the aft lower wishbone fulcrum support bracket with the modified and stronger one with 2 studs (available from Moss)

6/ Consider installing the kit to beef up the forward wishbone support bracket as this is weak part of suspension ( simple welding required)

7/ Consider putting spax fully adjustable shock absorbers on. Brilliant units

8/ As previously mentioned if the trunnions are at all suspect or have not been regularly greased during their life change them. A good friend of mine was involved in a fatal accident (not him) in the 60's when his trunnion failed.

9/ Get the Moss parts catalogue because their diagrams/drawings of the suspension are really good and helps one understand the system.

10/ Good trolley jack required

11/ Good quality axle stands required

12/ The new bushes will go in with a lot of effort either in a vice or bush installing tool.` USE LOADS OF COPPER SLIP, Do not worry that the bush starts bulging and going out of shape, it will eventually go in with a very satisfying sort of globbing/sucking sound.

 

The job looks daunting but it is really just a case of being methodical and always double think about safety,

 

With a friend the first side will take 4 hours, then have a cup of coffee, the second side will take 2 hours with all the trick learnt earlier.

 

Your front suspension will be transformed,

 

Cheers

 

Simon

Edited by PYU940F
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Hi Erik,

the cracks in the rubber that you can see are fairly normal for old bushes.

However the area that counts is protected by the wishbones etc and will, almost certainly, be in good condition.

Is there any play anywhere associated with a bush.

 

The squeaking can be removed with a squirt or two of WD40.

 

If you take it all apart you may well find that steel sleeves are rusted to bolts. (not sure of the TR4 set-up)

 

If you do replace the bushes do use the SuperPro or PolyBush kits. The kit you have highlighted is very basic and not that good.

 

If you have any doubts over doing the job get a garage to do it.

 

With it all stripped down check the area above the thread on the Vertical Link - #32

http://www.moss-europe.co.uk/shop-by-model/triumph/tr2-4a/steering-suspension/front-suspension/front-suspension-tr2-3a-tr4.html

 

If there is signs of rust then consider replacing the VL - they do snap and it is usually caused by rust.

 

Roger

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I want to thank you all for this fantastic replies I get at such very short notice.

 

I did find a spring compressor for TR at Moss: http://www.moss-europe.co.uk/spring-compressor-tr-386-895.html, I guess that is the one Roger et.al. are referring too?

 

Preferably I would try and do it myself first as I have not too much faith in the local car repair shops; and in case a shop will have to do it at least I will have the spring compression tool and parts to give to them.

 

The areas around the wishbones and vertical link were checked again: see pictures. The shock absorber and associated mounting rubbers seem to have been renewed fairly recently, they look new.

Today I will get some WD-40 (if I can get it here), thank you Roger, and let you know the results.

 

post-14211-0-02930300-1501837383_thumb.jpg

post-14211-0-06274000-1501837390_thumb.jpg

post-14211-0-09410300-1501837400_thumb.jpg

post-14211-0-13079200-1501837411_thumb.jpg

post-14211-0-03942400-1501837423_thumb.jpg

 

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Have just done my front suspension. I do NOT advise using standard spring compressor unless you want a couple of broken fingers. Use the proper tool or it is relatively easy make a threaded rod with steel plates and nuts top and bottom because basically that is what the special tool is. A few tips.

1/ The outboard springpan to lower wishbone attachments are studs not bolts. It is very difficult to get onto the nut and the stud will probably unscrew anyway so save loads of time and hassle; just take out the 2 bolts that hold the bumper support to the chassis. The bumper support can then be moved sufficiently out of the way to make life easy. (Spray WD40 on the nuts 30 mins before)

2/ When you put the spring pan back temporally fit a couple of really long bolts ( or 10mm threaded rod) where the middle bolts are. This guides the spring pan up nicely onto the wishbones

3/ I bought a battery impact wrench and it made life a lot easier.

4/ Try and get a friend to help you as you will need 3 hands on a lot of the tasks

5/ Consider changing the aft lower wishbone fulcrum support bracket with the modified and stronger one with 2 studs (available from Moss)

6/ Consider installing the kit to beef up the forward wishbone support bracket as this is weak part of suspension ( simple welding required)

7/ Consider putting spax fully adjustable shock absorbers on. Brilliant units

8/ As previously mentioned if the trunnions are at all suspect or have not been regularly greased during their life change them. A good friend of mine was involved in a fatal accident (not him) in the 60's when his trunnion failed.

9/ Get the Moss parts catalogue because their diagrams/drawings of the suspension are really good and helps one understand the system.

10/ Good trolley jack required

11/ Good quality axle stands required

12/ The new bushes will go in with a lot of effort either in a vice or bush installing tool.` USE LOADS OF COPPER SLIP, Do not worry that the bush starts bulging and going out of shape, it will eventually go in with a very satisfying sort of globbing/sucking sound.

 

The job looks daunting but it is really just a case of being methodical and always double think about safety,

 

With a friend the first side will take 4 hours, then have a cup of coffee, the second side will take 2 hours with all the trick learnt earlier.

 

Your front suspension will be transformed,

 

Cheers

 

Simon

Great post, thank you!

Erik

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+1 on the compressor but you don't need the factory item. All you need is a decent piece of threaded steel rod 15mm diameter or bigger ( I use 20mm) and thick steel plates big enough to cover the holes in the spring pans. A search will find plenty of discussion in these forums on the subject.:

 

Great video!!

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Here's the tool I made with a threaded bar and an old agricultural gate hinge part:-) This bit of kit can also be repurposed to extract bushes in the IRS rear suspension using a large socket to pull through:-)

 

 

Best.

 

Paul.

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....

 

5/ Consider changing the aft lower wishbone fulcrum support bracket with the modified and stronger one with 2 studs (available from Moss)

 

...

 

6/ Consider installing the kit to beef up the forward wishbone support bracket as this is weak part of suspension ( simple welding required)

 

....

Hi Simon, item 5: can you please show where this is situated in the Moss drawing http://www.moss-europe.co.uk/front-suspension-tr2-3a-tr4.htmlI can't find it, thanks!

 

Item 6: where do I find this kit in the Moss catalog?

 

Added note: I did spray the bushingrubbers and insides with PTFE dry lube: the creaking is gone. And I also ordered the Superpro kit from Moss, replacement next year.

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Hi Erick,

 

Just to add to what others have already said, I did this job on my TR4 last winter for the same reason as you - one side creaked like crazy when the weather was hot. On mine the creaking was mainly from the lower control arm rear nylon bushes (I'd previously tried lubricating them without success). I replaced the old white nylon ones with these unrated black 'nylatron' ones from Revington (and also the washers on each side):

 

http://www.revingtontr.com/product/rtr3203/name/bush-nylatron-tr2-6-f-bush

 

It did the job and stopped the creaking. Just be aware that the bushes are supplied with the ID undersize so need to be reamed to fit. I bought a cheap expandable hand reamer on eBay, which did the job nicely.

 

At the same time I replaced all the rubber components with SuperPro bushes and the control arm bronze bushes with oilite ones.

 

I bought a Moss spring compressor which worked well, although as others have said, it wouldn't be too difficult to make one:

 

http://www.moss-europe.co.uk/spring-compressor-tr-386-895.html

 

Cheers,

Steve

Edited by Steve Priest
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...

 

Just be aware that the bushes are supplied with the ID undersize so need to be reamed to fit. I bought a cheap expandable hand reamer on eBay, which did the job nicely.

 

At the same time I replaced all the rubber components with SuperPro bushes and the control arm bronze bushes with oilite ones.

 

...

 

Cheers,

Steve

Hi Steve,

 

can I find the "hand reamer" on ebay using that wording?

 

The control arm bronze bushes: do you have a Moss or Rimmer Brothers reference?

 

I plan an replacing the trunnions as well, per good advice from RogerH and others.

 

Spraying PTFE helps temporarily so far, I have to do some more driving but it seems ok until now -quite embarassing this creaking-.

 

Grts,

Erik

Edited by earckens
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