www.gt4dc.co.uk :: View topic - st205 banana arm bushing

superiorg wrote:

thanks guys, I really appreciate the feedback. I would like to learn more about the rose joints, size joint to buy, how to install it and all related details. My current bushin is torn so badly i can push the wheels forward and backward when the car is parked. i really need to get these fixed asap. the rose joints seems to last very long.

A common mistake is to think the rubber part of the joint has failed when in fact it's the metal centre part moving in the chassis. This metal part has an inside diameter much bigger than the bolt and is normally held in place by a combination of a fragile 'crush tube' plus friction between the subframe parts by tightening down the bolt.
Failure of the crush tube joint is common, and once it's happened the movement quickly wears away the subframe and tube ends making it weaker and prone to failing again. The correct solution is remove and weld repair the subframe and fit new bushes or arms. The common solution is to fit 'uprated crush tubes' which will not give like the standard ones.

Author:	superiorg [ Sun May 27, 2012 9:39 pm ]
Post subject:	st205 banana arm bushing
hey guys. does any one know which other celica bushing can replace the bushing in the banana arm of the 205 gt4. i want to switch this bushing to a poly bushin

Author:	TrackToyFour [ Sun May 27, 2012 11:11 pm ]
Post subject:
I presume you mean this end of the banana arm? Picture courtesy of www.gtfours.co.uk Given the nature of the suspension movement this rubber bush shouldn't be replaced by a polybush. There won't be the required compliance if you fit a polybush here and the NVH is likely to be worse too.

Author:	Sirius [ Mon May 28, 2012 12:10 pm ]
Post subject:
One end of the banana arm has the ball joint in which can not be replaced. The other end has the rubber bush in. TCB and a few others do sell a polybush to go in here. Its not something I would entertain doing. Is there anything wrong with the existing bush? If there is then its likely that the other end will have failed and the arm will require replacement.

Author:	TrackToyFour [ Mon May 28, 2012 6:48 pm ]
Post subject:
I'm surprised that polybushes are being offered as replacements for this OEM rubber bush. Perhaps the manufacturer think there's only movement in one plane? On my track build we have fitted spherical bearings (aka rose-joints).

Author:	Sirius [ Mon May 28, 2012 7:42 pm ]
Post subject:
Agreed. I think they are being offered simply as some people will buy them, similar to the rear hubs where two of the joints shouldn't be polybushed - you can still buy them.

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st205 banana arm bushing http://gt4dc.co.uk/forum/viewtopic.php?f=2&t=5643	Page 1 of 1

Author:	superiorg [ Tue May 29, 2012 3:57 am ]
Post subject:
thanks guys, I really appreciate the feedback. I would like to learn more about the rose joints, size joint to buy, how to install it and all related details. My current bushin is torn so badly i can push the wheels forward and backward when the car is parked. i really need to get these fixed asap. the rose joints seems to last very long.

Author:	two_OH_five [ Tue May 29, 2012 9:58 am ]
Post subject:
I can't see why polishes wouldn't work for that joint if correctly specified. They will still offer some compliance..... Tracktoyfour's rosejointq setup is quite different to stock and isn't something you could easily replicate. Plus rosejoints are not really suitable for road cars without serious protection from the elements

Author:	Nibbles [ Tue May 29, 2012 10:40 am ]
Post subject:
superiorg wrote: thanks guys, I really appreciate the feedback. I would like to learn more about the rose joints, size joint to buy, how to install it and all related details. My current bushin is torn so badly i can push the wheels forward and backward when the car is parked. i really need to get these fixed asap. the rose joints seems to last very long. A common mistake is to think the rubber part of the joint has failed when in fact it's the metal centre part moving in the chassis. This metal part has an inside diameter much bigger than the bolt and is normally held in place by a combination of a fragile 'crush tube' plus friction between the subframe parts by tightening down the bolt. Failure of the crush tube joint is common, and once it's happened the movement quickly wears away the subframe and tube ends making it weaker and prone to failing again. The correct solution is remove and weld repair the subframe and fit new bushes or arms. The common solution is to fit 'uprated crush tubes' which will not give like the standard ones.

Author:	Kris [ Tue May 29, 2012 5:44 pm ]
Post subject:
I wouldn't recommend a poly bush - fit OEM if you have to replace the banana arm

Author:	yellowchinaman [ Wed May 30, 2012 12:31 pm ]
Post subject:
If the Mcpherson controll arm is positioned the same as the superstrut, and the bushes are the same size, you would had thought we could use the bushes for the supersstrut rite? See pics here: http://www.6gc.net/forums/index.php?sho ... 68134&st=0

Author:	superiorg [ Thu May 31, 2012 4:25 am ]
Post subject:
i was thinking of using these but i wasn't sure if they were the same size but i think its worth a shot because gt4 parts are very rare in jamaica

Author:	TrackToyFour [ Thu May 31, 2012 6:50 pm ]
Post subject:
Jamaica! No wonder you are having to be inventive with your parts supply

Author:	crossy68 [ Thu Jun 07, 2012 11:56 am ]
Post subject:
Nibbles wrote: superiorg wrote: thanks guys, I really appreciate the feedback. I would like to learn more about the rose joints, size joint to buy, how to install it and all related details. My current bushin is torn so badly i can push the wheels forward and backward when the car is parked. i really need to get these fixed asap. the rose joints seems to last very long. A common mistake is to think the rubber part of the joint has failed when in fact it's the metal centre part moving in the chassis. This metal part has an inside diameter much bigger than the bolt and is normally held in place by a combination of a fragile 'crush tube' plus friction between the subframe parts by tightening down the bolt. Failure of the crush tube joint is common, and once it's happened the movement quickly wears away the subframe and tube ends making it weaker and prone to failing again. The correct solution is remove and weld repair the subframe and fit new bushes or arms. The common solution is to fit 'uprated crush tubes' which will not give like the standard ones. You don't get better advice than this.

Author:	superiorg [ Sun Jul 01, 2012 10:39 pm ]
Post subject:
does any one know how to swap the super strut to the mcpherson set up

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Author:	Sirius [ Sun Jul 01, 2012 10:45 pm ]
Post subject:
It can be done but its quite involved and you typically end up with issues with the standard brakes not fitting. Probably best to start a new thread if your serious about going that route.