4 replies to this topic

[Pairaminis]

I spent quite a bit of time reading old threads on this and one other forum before attempting to install new cones and knuckle joints on my old trumpets and fitting it all into the reconditioned rear subframe of my '84 Mini sedan.  I also reviewed all the Haynes and my Rover workshop manuals had to say on the subject (very little) and even printed some of the forum responses to have in the garage with me.

 

However, after a day of trying I've been unable to get the three mentioned pieces installed on my rebuilt radius arm (from which the old knuckle joint and cup were removed) and nestled in place in the subframe.  

 

I've tried placing the cone in place at an angle, putting the trumpet end on the knuckle joint, and then attempting to knock the trumpet end into the cone end.  No luck.

I've tried to assemble all three pieces on the radius arm and then slide it all into the subframe.  No luck.

I've tried every other thing could think of.  No luck.

 

There is just not enough room for everything to go into place no matter how high or lower the radius arm is raised and no matter what order I try to fit the cone, trumpet or knuckle joint.  If it were possible to compress the cone like when fitting it in the front subframe I'm sure it would just plop into place.

 

I would love it if someone could walk me though how to accomplice this task.

 

Jack

 

 

 

 

[liirge]

I had to compress the rear cones when I did mine once. I used the front cone compressor, and made some adaptions with wood. 

[Pairaminis]

How did you manage to compress the cone and still fit it into place?
Jack

[airdynamic]

Is there a specific reason you want the trumpets back in. Way easier to put in HiLos.... and then you have adjustability on your side. When I put in my new cones they settled/sagged slightly differently, so having the advantage of adjustment meant I could have the back of the car level.

 

Just a suggestion though.

 

Air

Edited by airdynamic, 30 January 2015 - 12:58 AM.

[Spider]

This does raise a good point.

 

Years ago, I found they went together more or less as per the Manuals, sometimes with a bit of tougue wiggling (as they were a 'neat' fit), but they did go in. Then I found the rubbers cones seemed to have grown a tad, then I found they could be slipped together at the knuckle, hard to describe, but sorta line up the little end of the knuckle and the trumpet so they are ready to go together, but there'll be a bit of a 'kink' between them, then carefully lever the small end of the trumpet up, so they start lining up then they'll slip together, this pic may help

 

 

I have also had a few where I've had to use the compressor tool, in a mini, that does mean dropping the rear of the subframe down, not a biggy really (4 bolts and maybe the exhaust if it's on) just another step.