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Changing rear subframe bushes with polyurethane. #1304132
08/01/2012 16:30
08/01/2012 16:30
Joined: Oct 2010
Posts: 546
Bulgaria
Ferrarist Offline OP
Enjoying the ride
Ferrarist  Offline OP
Enjoying the ride

Joined: Oct 2010
Posts: 546
Bulgaria
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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20VT - Alfa 156 2.0 - Alfa 156 Mid-Engined RWD - Locost 20VT

Re: Changing rear subframe bushes with polyurethane. [Re: Ferrarist] #1304169
08/01/2012 18:00
08/01/2012 18:00
Joined: Jul 2011
Posts: 196
uk
G
griffster Offline
On a journey
griffster  Offline
On a journey
G

Joined: Jul 2011
Posts: 196
uk
very considerate work, even if beyond me, i am sure it will help many

Re: Changing rear subframe bushes with polyurethane. [Re: Ferrarist] #1304171
08/01/2012 18:01
08/01/2012 18:01
Joined: Aug 2010
Posts: 1,671
Dalgety Bay
D
Duffy Offline
My life on the forum
Duffy  Offline
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D

Joined: Aug 2010
Posts: 1,671
Dalgety Bay
Good stuff, it'll be interesting to hear if you notice much difference (Including road noise!)

Re: Changing rear subframe bushes with polyurethane. [Re: Duffy] #1304175
08/01/2012 18:23
08/01/2012 18:23
Joined: Oct 2010
Posts: 546
Bulgaria
Ferrarist Offline OP
Enjoying the ride
Ferrarist  Offline OP
Enjoying the ride

Joined: Oct 2010
Posts: 546
Bulgaria
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.


20VT - Alfa 156 2.0 - Alfa 156 Mid-Engined RWD - Locost 20VT

Re: Changing rear subframe bushes with polyurethane. [Re: Ferrarist] #1304202
08/01/2012 20:20
08/01/2012 20:20
Joined: Aug 2010
Posts: 1,671
Dalgety Bay
D
Duffy Offline
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Duffy  Offline
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Posts: 1,671
Dalgety Bay
I look forward to the report!

smile

Re: Changing rear subframe bushes with polyurethane. [Re: Ferrarist] #1304205
08/01/2012 20:26
08/01/2012 20:26
Joined: Feb 2007
Posts: 3,468
London Tan
technics Offline
I need some sleep
technics  Offline
I need some sleep

Joined: Feb 2007
Posts: 3,468
London Tan
x2!


Now in the 400+ bhp club!
Re: Changing rear subframe bushes with polyurethane. [Re: Ferrarist] #1304726
10/01/2012 09:20
10/01/2012 09:20
Joined: Oct 2010
Posts: 546
Bulgaria
Ferrarist Offline OP
Enjoying the ride
Ferrarist  Offline OP
Enjoying the ride

Joined: Oct 2010
Posts: 546
Bulgaria
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.


20VT - Alfa 156 2.0 - Alfa 156 Mid-Engined RWD - Locost 20VT

Re: Changing rear subframe bushes with polyurethane. [Re: Ferrarist] #1304754
10/01/2012 10:18
10/01/2012 10:18
Joined: Aug 2010
Posts: 1,671
Dalgety Bay
D
Duffy Offline
My life on the forum
Duffy  Offline
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D

Joined: Aug 2010
Posts: 1,671
Dalgety Bay
Interesting! Any additional noise/vibration?

Re: Changing rear subframe bushes with polyurethane. [Re: Ferrarist] #1304760
10/01/2012 10:27
10/01/2012 10:27
Joined: Dec 2005
Posts: 285
Germany
Stichl Offline
Making a profit
Stichl  Offline
Making a profit

Joined: Dec 2005
Posts: 285
Germany
This modification looks really really good.
Where to buy these bushes?!
Thank you
Juergen

Last edited by Stichl; 10/01/2012 12:30.

20VT coupegrale 4x4
Re: Changing rear subframe bushes with polyurethane. [Re: Ferrarist] #1304816
10/01/2012 12:58
10/01/2012 12:58
Joined: Aug 2007
Posts: 6,984
Southsea
Gunzi Offline
Club Member 189
Gunzi  Offline
Club Member 189
Forum is my life

Joined: Aug 2007
Posts: 6,984
Southsea
You can speak with Joe at FCSS - check the traders section.

Re: Changing rear subframe bushes with polyurethane. [Re: Duffy] #1304825
10/01/2012 13:35
10/01/2012 13:35
Joined: Oct 2010
Posts: 546
Bulgaria
Ferrarist Offline OP
Enjoying the ride
Ferrarist  Offline OP
Enjoying the ride

Joined: Oct 2010
Posts: 546
Bulgaria
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.


20VT - Alfa 156 2.0 - Alfa 156 Mid-Engined RWD - Locost 20VT

Re: Changing rear subframe bushes with polyurethane. [Re: Ferrarist] #1372733
30/08/2012 09:51
30/08/2012 09:51
Joined: Dec 2005
Posts: 2,194
Göteborg, Sweden
Freddan72 Offline
Competition Level
Freddan72  Offline
Competition Level

Joined: Dec 2005
Posts: 2,194
Göteborg, Sweden
Have you finished the testing?

How much for a rear beam set?

Do you also have a set for the front wishbones?


Coupé Fiat 20V Turbo Plus 1999, T19 Mitsubishi turbo
https://youtu.be/O9qrLj3Ap00 Now FCP Stage3!
Re: Changing rear subframe bushes with polyurethane. [Re: Freddan72] #1372758
30/08/2012 11:10
30/08/2012 11:10
Joined: Mar 2010
Posts: 2,722
LONDON
dlongstaff Offline
I need some sleep
dlongstaff  Offline
I need some sleep

Joined: Mar 2010
Posts: 2,722
LONDON
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.

Re: Changing rear subframe bushes with polyurethane. [Re: dlongstaff] #1372762
30/08/2012 11:16
30/08/2012 11:16
Joined: Dec 2005
Posts: 2,194
Göteborg, Sweden
Freddan72 Offline
Competition Level
Freddan72  Offline
Competition Level

Joined: Dec 2005
Posts: 2,194
Göteborg, Sweden
Thank you for the link!! I will send him a pm.


Coupé Fiat 20V Turbo Plus 1999, T19 Mitsubishi turbo
https://youtu.be/O9qrLj3Ap00 Now FCP Stage3!
Re: Changing rear subframe bushes with polyurethane. [Re: Ferrarist] #1372851
30/08/2012 16:20
30/08/2012 16:20
Joined: Dec 2006
Posts: 1,352
stockport
volumex Offline
My job on the forum
volumex  Offline
My job on the forum

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Posts: 1,352
stockport
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

Re: Changing rear subframe bushes with polyurethane. [Re: Ferrarist] #1598815
19/04/2017 05:40
19/04/2017 05:40
Joined: Jan 2006
Posts: 1,615
Oswestry
Genic Offline
Club member 1710
Genic  Offline
Club member 1710
My life on the forum

Joined: Jan 2006
Posts: 1,615
Oswestry
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

Re: Changing rear subframe bushes with polyurethane. [Re: Genic] #1598910
20/04/2017 11:40
20/04/2017 11:40
Joined: Oct 2010
Posts: 546
Bulgaria
Ferrarist Offline OP
Enjoying the ride
Ferrarist  Offline OP
Enjoying the ride

Joined: Oct 2010
Posts: 546
Bulgaria
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.


20VT - Alfa 156 2.0 - Alfa 156 Mid-Engined RWD - Locost 20VT

Re: Changing rear subframe bushes with polyurethane. [Re: Ferrarist] #1598927
20/04/2017 14:53
20/04/2017 14:53
Joined: Jan 2006
Posts: 1,615
Oswestry
Genic Offline
Club member 1710
Genic  Offline
Club member 1710
My life on the forum

Joined: Jan 2006
Posts: 1,615
Oswestry
Thanks mate smile

Re: Changing rear subframe bushes with polyurethane. [Re: Ferrarist] #1625940
11/10/2018 12:53
11/10/2018 12:53
Joined: Feb 2006
Posts: 88
Newbury
MIB Offline
Club member 1579
MIB  Offline
Club member 1579
Reaping the fruits

Joined: Feb 2006
Posts: 88
Newbury
Just received a set of these bushes.
I guess that a hydraulic press is required to insert them into the subframe?


[Linked Image]
Bog standard!
Re: Changing rear subframe bushes with polyurethane. [Re: Ferrarist] #1625942
11/10/2018 13:43
11/10/2018 13:43
Joined: Feb 2006
Posts: 88
Newbury
MIB Offline
Club member 1579
MIB  Offline
Club member 1579
Reaping the fruits

Joined: Feb 2006
Posts: 88
Newbury
Sorry, scratch that.
It states in the first post: 'but i need an hydraulic press to fit the polyurethane bushes into it's sleeve'.


[Linked Image]
Bog standard!

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