Fiat Coupe Club UK

Changing rear subframe bushes with polyurethane.

Posted By: Ferrarist

Changing rear subframe bushes with polyurethane. - 08/01/2012 16:30

Today i have some free time to change my rear hubs to 5 studs(front's ready) and change my badly worn rear subframe bushes with polyurethane.
It's about 5-6 hours job for a man alone, but having all equipment needed.
Decided to remove subframe completely, if bushes is changed with OE ones you may not removed it, but i need an hydraulic press to fit the polyurethane bushes into it's sleeve. I used marine grease for more easy fit but the inner wall of the "sleeve" must be perfectly smooth and greased.
Was very happy to be able to remove both ABS sensors, it takes my 30 mins to do it cause it looks like they were never removed. Greased as well.
Fuel tank removed, it's not a hard job if stand is nearby.
Hoses can be disconnected either from above the trunk or when tank is lowered few inches. Above is the better way.
Old bushes can be hammered out, but a used hydraulic press.
Real pain is to remove the brake pipes from the subframe clips.
You can see how badly worn is one of the old bushes.
I'm happy with the result overall.

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Posted By: Anonymous

Re: Changing rear subframe bushes with polyurethane. - 08/01/2012 18:00

very considerate work, even if beyond me, i am sure it will help many
Posted By: Anonymous

Re: Changing rear subframe bushes with polyurethane. - 08/01/2012 18:01

Good stuff, it'll be interesting to hear if you notice much difference (Including road noise!)
Posted By: Ferrarist

Re: Changing rear subframe bushes with polyurethane. - 08/01/2012 18:23

Normally difference is hardly noticeable, but having in mind that 2 of the bushes was really damaged, small difference maybe can be sensed. Will give my Coupe some hard time tomorrow and will report.
Posted By: Anonymous

Re: Changing rear subframe bushes with polyurethane. - 08/01/2012 20:20

I look forward to the report!

smile
Posted By: technics

Re: Changing rear subframe bushes with polyurethane. - 08/01/2012 20:26

x2!
Posted By: Ferrarist

Re: Changing rear subframe bushes with polyurethane. - 10/01/2012 09:20

Well i'm quite impressed, yesterday i did my simple "movement measure" test with one electrode mounted on the chassis sticked into small plasticine filled cup sticked to the rear subframe.
Car behaves better under heavy braking and when turn sharply into the corner.
Bought GoPro HeroHD few weeks ago, and i'll try to find suitable place to mount it and make some videos.
Posted By: Anonymous

Re: Changing rear subframe bushes with polyurethane. - 10/01/2012 10:18

Interesting! Any additional noise/vibration?
Posted By: Stichl

Re: Changing rear subframe bushes with polyurethane. - 10/01/2012 10:27

This modification looks really really good.
Where to buy these bushes?!
Thank you
Juergen
Posted By: Gunzi

Re: Changing rear subframe bushes with polyurethane. - 10/01/2012 12:58

You can speak with Joe at FCSS - check the traders section.
Posted By: Ferrarist

Re: Changing rear subframe bushes with polyurethane. - 10/01/2012 13:35

Originally Posted By: Duffy
Interesting! Any additional noise/vibration?

No, as far as i can sense.....i'm running 225\45\18 tyres.....

Originally Posted By: Stichl
This modification looks really really good.
Where to buy these bushes?!

We made these, had already all front and rear bushes for Coupe(both wishbone bushes-front and rear), however i want to complete the final test of the rear subframe bushes with our trackday Alfa 145 this 22th january when we have 3 hours endurance race, in order to complete almost 1 year with this bushes, before they can be offered for sale. That's how we proceed with every new poly bush we made.
Posted By: Freddan72

Re: Changing rear subframe bushes with polyurethane. - 30/08/2012 09:51

Have you finished the testing?

How much for a rear beam set?

Do you also have a set for the front wishbones?
Posted By: Anonymous

Re: Changing rear subframe bushes with polyurethane. - 30/08/2012 11:10

Originally Posted By: Freddan72
Have you finished the testing?

How much for a rear beam set?

Do you also have a set for the front wishbones?

Although ended Here sure there will be more. Or pm him.
Posted By: Freddan72

Re: Changing rear subframe bushes with polyurethane. - 30/08/2012 11:16

Thank you for the link!! I will send him a pm.
Posted By: volumex

Re: Changing rear subframe bushes with polyurethane. - 30/08/2012 16:20

going to be doing this my self in the very near future..... the pics have given me a lot more confidence in doing the job
Posted By: Genic

Re: Changing rear subframe bushes with polyurethane. - 19/04/2017 05:40

HI

just done the bushes in my subframe , and looking at the pictures , there is no washer being fitted between the top of the bush and the frame of the car, is that right? I only ask as there was one on the OE bush.

thanks
Posted By: Ferrarist

Re: Changing rear subframe bushes with polyurethane. - 20/04/2017 11:40

Originally Posted By Genic
HI

just done the bushes in my subframe , and looking at the pictures , there is no washer being fitted between the top of the bush and the frame of the car, is that right? I only ask as there was one on the OE bush.

thanks

Yes, no washers.
Posted By: Genic

Re: Changing rear subframe bushes with polyurethane. - 20/04/2017 14:53

Thanks mate smile
Posted By: MIB

Re: Changing rear subframe bushes with polyurethane. - 11/10/2018 12:53

Just received a set of these bushes.
I guess that a hydraulic press is required to insert them into the subframe?
Posted By: MIB

Re: Changing rear subframe bushes with polyurethane. - 11/10/2018 13:43

Sorry, scratch that.
It states in the first post: 'but i need an hydraulic press to fit the polyurethane bushes into it's sleeve'.
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