14 replies to this topic

[Giomassi]

Hello chaps and chapettes 🙂

 

As the topic title says, I was wondering if any of you could help me identify this worn rubber (bush)? which desperately needs replacing on both sides of my car (apologies, but I'm not sure if 'bush' is the correct term for the part, and consequently I'm struggling to find the right thing on the Minispares website).

I'm currently switching my 12x4.5 standard wheels for 12x6's and had the front wheels off the other day to test for scrubbing on the arches.  I haven't had the wheels off for a very long time and, amongst a swarm of other things which will need replacing, I noticed this absolute horror.

The part sits between the back of the lower arm and a tube/bar that connects to the subframe (please see attached pictures).  If any of you could help, my questions are:

1. What is this part called?
2. If you'd happen to know the correct part number on the Minispares website (or could post a link)? 
3. If an alternative 'upgrade' part exists, which would be an improvement on the original part (i.e. poly as opposed to rubber)?

Any help would be greatly appreciated.

With many thanks in advance

Gio

 

 

Attached Files

•  bush.jpg   17.83K   1 downloads
•  bush_1.jpg   36.34K   1 downloads

[nicklouse]

Two needed per arm.

https://www.minispar...sh-1967-onwards

[Giomassi]

Thanks so much!

[nicklouse]

Thanks so much!

Just sent you a message as well.

[Giomassi]

Sorry, last thing; in your opinion, would this part be also be appropriate and more importantly, an improvement, on the orignal part? https://www.minispar...black-poly-type

Thanks again for your help.

[nicklouse]

Sorry, last thing; in your opinion, would this part be also be appropriate and more importantly, an improvement, on the orignal part? https://www.minispar...black-poly-type

Thanks again for your help.

No. Not an improvement.

[Giomassi]

OK understood.  Thank you for your help

[nicklouse]

OK understood.  Thank you for your help

Note that when you come to change them it may seem that they might not fit.

one of these still has part of the bush in place.

[Giomassi]

Presumably the top one?  Will it be tricky to remove?

[coopertaz]

 

Sorry, last thing; in your opinion, would this part be also be appropriate and more importantly, an improvement, on the orignal part? https://www.minispar...black-poly-type

Thanks again for your help.

No. Not an improvement.

 

poly will not perish like standard rubber ones, and stiffer why do you not consider this an improvement?

[nicklouse]

 

 

Sorry, last thing; in your opinion, would this part be also be appropriate and more importantly, an improvement, on the orignal part? https://www.minispar...black-poly-type

Thanks again for your help.

No. Not an improvement.

 

poly will not perish like standard rubber ones, and stiffer why do you not consider this an improvement?

 

It wears out due to in needing to rotate. The rubber ones do not rotate or need to they flex. It has been covered on here many times. I think Spider even included pictures. There are very few places that poly is suitable. The main one, if you fit them the right way round, is the rear subframe. They don’t like heat either so a poor option for the engine side of any engine/box steady.

 

just because it is new or racers use it does not mean it is any good. See coil springs.

 

watch some YouTube from poly suppliers and you will see them talk about constant lubrication needs for their bushes.

[Spider]

Presumably the top one?  Will it be tricky to remove?

 

What Nick is showing you is that there's a steel spacer (crush tube) cast in with the rubber. Often when removing the old bush, the tube parts company from the rubber and is left rusted on the pin. To avoid damaging the Pin, while a little time consuming, I put the Pin in the vice and file a flat on the Tube, as I get closer to the Pin, I can just start to see the Pin under the tube and it's at that point I stop filing, then use an old screw driver to split the tube, then it falls off.

When fitting the new rubbers, I use a lick of Rubber Grease on the outside of the new Rubbers to help them go in and a lick of Chassis Grease on the Pin so the Crush Tubes of the new Rubbers are much less likely to rust on to the Pin again.

When fitting the Pin, I use a clamp or vice grips to push the Pin in to the Subframe all the way home rather than try drawing the Pin in with the Nut as all too often, you'll strip the thread on the Pin. 'Home' on the Pin is when the Shoulder of the Pin, just behind the thread that's on it, contacts the Subframe.The bigger end of it usually sits about 1 mm proud of the frame.

[Spider]

 

 

 

Sorry, last thing; in your opinion, would this part be also be appropriate and more importantly, an improvement, on the orignal part? https://www.minispar...black-poly-type

Thanks again for your help.

No. Not an improvement.

 

poly will not perish like standard rubber ones, and stiffer why do you not consider this an improvement?

 

It wears out due to in needing to rotate. The rubber ones do not rotate or need to they flex. It has been covered on here many times. I think Spider even included pictures. There are very few places that poly is suitable. The main one, if you fit them the right way round, is the rear subframe. They don’t like heat either so a poor option for the engine side of any engine/box steady.

 

just because it is new or racers use it does not mean it is any good. See coil springs.

 

watch some YouTube from poly suppliers and you will see them talk about constant lubrication needs for their bushes.

 

 

There is sill good quality rubber one about, there's no good reason to fit polly bushes on a road car, as Nick suggests. I also don't like them as I find them too hard.
 

 

[Giomassi]

Thank you Spider for taking the time to explain the procedure to me in detail. I'll be sure to follow your steps. It'll be my first time so there'll probably be a fair amount of swearing involved 😂

The information/debate on poly is also very interesting (I hadn't considered the heat/vicinity to the engine element, for example, and it does make sense to me).

That said, I'll go with the rubber for now 👍🏼

Thanks again to everyone who took the time out of their day to get back to me on this topic; your input is very much appreciated.

Wishing you all a lovely evening 🙂

[Giomassi]

On a side note, I did have a chat with the nice chap at Minispares who suggested adjustable tie rods when fitting my 12x6's and consequently, suggested the race poly bushes where the sleeve has a slight angle would be a good fit.

This conversation came about because I was convinced I'd have to trim the front arch to fit the wheels, and he was of the opinion that it may not be necessary if I fit adjustables.

In any case, the tyres are arriving this week (165/60/R12 yokos) so I'll do a test fit and see what's what.

The current tie bars and arms are on good nick but do need a jolly good clean. The calipers, discs, brake pads etc. look like they need replacing though; I'm definitely falling down the 'Trigger's Broom' rabbit hole 😂😂