10 replies to this topic

[Ruth's Mini]

I had success separating the front cones from trumpets using a large gear puller (picture attached). Unfortunately because the rear trumpets are so long I can't employ the same method. 

Interested in hearing from members regarding what has worked for you.

thanks in advance...

Attached Files

•  trumpet - front.jpg   30.29K   1 downloads
•  trumpet - right rear.jpg   48.22K   1 downloads

[nicklouse]

Masonry chisel. Work your way round the join.

 

oh and PlusGas.

[stuart bowes]

I was cutting and banging and levering and chiselling and all sorts for ages, in the end I ditched them and found a pair on ebay for £15 with donuts already removed

 

actually in the end even that turned out to be a waste because I then bought a set of hi-los 

 

if you were round my way I'd say come and take the trumpets (if anyone else is interested let me know)

Edited by stuart bowes, 06 March 2024 - 10:13 PM.

[mab01uk]

Separating the suspension trumpet / cone from the rubber spring cone / donut:-

 

 

[Ethel]

It's the steel insert in the rubber. They can get very tight when they corrode together.

[coopertaz]

rip rubber away by securing it in a vice and cut off inner cup always a pig of a job

[bpirie1000]

Yip. Proper stinky job on a mini... usually bad enough getting them out the front subframe never mind splitting them all up.

[Ruth's Mini]

thanks all,

the fronts were so easy to do but guess I'm in for a crap time on the rears 

[Ruth's Mini]

answering my own question, this worked like a charm...

a piece of 1/2" black steel rod cut to about 15 inches, just a few whacks with a heavy hammer and they're done.

Attached Files

•  trumpet - right rear - 1.jpg   39.11K   0 downloads
•  trumpet - right rear.jpg   48.22K   0 downloads
•  trumpet - right rear - 2.jpg   33.79K   0 downloads
•  trumpet (cone) - right rear -3.jpg   50.89K   0 downloads

[mbolt998]

Blowtorch and bashing. Obviously bash the rubber cone since that's the bit you're replacing. It will catch fire to some extent so do this outside. When it did eventually come off it left a metal cap on the end of the trumpet (the cap was originally bonded to the rubber cone with a cyanide based glue-- did I mention do this outside?) I got that off by welding a bit of square tube to it and then bashing that. Repeated the procedure for the other side.

Edited by mbolt998, 11 March 2024 - 07:01 PM.

[Spider]

answering my own question, this worked like a charm...

a piece of 1/2" black steel rod cut to about 15 inches, just a few whacks with a heavy hammer and they're done.

 

Well, that's another approach !  I like it. Good work !