Rear Subframe Wear - Questions
I have trawled through the old posts but cannot find exactly what I'm looking for.
I understood the issue with subfames were with elongated bolt holes but I found a different problem.......
I started to refurb my rear spring pans and control arms this weekend as I could see that the inner bushes on the control arms were falling apart, the inner control arm end was pressed right up against the subframe with what looked like the rest of the bearing inside hanging out behind it (I assumed wrongly that there would not be anything protruding on the other face). This end of the control arm proved very difficult to remove as the inner metal sleeve of the bush had worn into the aluminium subframe, so on removal I find I have a 1mm WIDE perfect circular groove in the subframe about the circumference of a 10p peice which has worn away and into the frame by close to HALF THE DEPTH of the frame on the inner face where the metal bush was pressed up against it, there are no other signs of wear or cracks, the bolt holes are all fine.
Surely this is a very poor design of rubber bush to have so much lateral movement, a thick shoulder (like the powerflex bushes) or even washers could have prevented this? Or maybe there was more and it's just disintegrated?
Question is - is it safe put back together and use as is? Can it be repaired? Am I looking for another subframe?
By the way the outer bushes are the rose jointed type on both the sping pan and the control arms, I thought these were supposed to eliminate the problem?
Any help / advice much appreciated.
Last edited by JAO; 21-02-11 at 07:58.