12 replies to this topic

[minilee94]

hi there i was just about to take my old cones out and replace with new cones and hi los but the thread on the end of the compression tool had threaded off wich i supose the cone thread has had it to .

is there anyway of taking the old cone out now i dont have a tool and cones is buggerd

i have been told either cut the old trumpet thing

or take top arm out but to be carefull as it under pressure and can go bang

help me please thanks

i havent yet got the cones and hi los but doing it for when i do get them wich is very soon

[lrostoke]

I removed some by breaking the trumpet. I was fitting hilo's anyway so a chisel and lump hammer on the trumpet did the trick.

[minilee94]

ahh cool cheers il give that ago and did the cone come straight out

[Nu2mini]

Not Good !!!

First off I'd Beg,steal or borrow another compression tool. Make sure it's the right one for your cones. Most by now will be metric but the original ones where a different thread. Then I'd apply liberal amounts of grease to the rod end and see if you can start it in the cone. Go carefully and do not force it !!. tighten a quarter of a turn then back it off, then tighten again . If it goes really tight take the rod out and apply more grease. The rod should be good for 7 or 8 turns. YOU NEED TO BE CONFIDENT THE ROD HAS A GOOD HOLD ON THE CONE before attempting to compress it . If you get this far do not just wind the cone up take it slowly a turn at a time. Each time check to see if the trumepet is loose. I'd stay well clear of putting my hand anyhere inside the trumpet housing. If that mother lets go you'll do yourself a serious injury. If you get the trumpet loose I'd use some pliers or grips to free the knuckle end and then pull the trumpet clear. Get the tension off the cone and say a prayer.

I'd be very concerned about cutting the trumpet whilst the cone is still in there

[icedaddyuk]

I had a problem with mine also, the nut on the top end wouldn't budge. Spoke to Minispares and I think they may have had a dodgy batch.

Sent it back two weeks ago, still waiting for a refund though

[lrostoke]

Yes car jacked up shock absorber off so top arm could drop as far as poss.
trumpet split in two, removed the bottom bit with ball joint on, and then other broken bit came out.

Just watch your eyes

If your changing the cones, chances are they are worn anyway, The cone is up inside the turret, so is most of the trumpet, the top arm is fixed, so wearing googles I used a foot long chisel so hands so no where near. Nothing flew off
And if the cone thread is also shot he hasn't got many options, a new compressor wont work on a cone with a stripped thread

Edited by lrostoke, 21 July 2011 - 04:11 PM.

[minilee94]

cheers for that too but i dont think getting another compression tool will help as i think the cone thread has buggerd to

[minilee94]

oh right cool yeah i will do im not going to carry it on tonight as im pissed off so il wait till another day and try again

[Spitz]

I have had to cut a trumpet out while the doughnut was in place.......no other choice as the nut on the spring went BANG and pulled right through while under pressure.
If the car is jacked up the spring will not be under as much load. I drilled/chiseled/banged away at it with no dramatic result.....( but do be careful and don't be sticking your hand in there )
Unfortunate that a trumpet goes to waste...but at least you're replacing with adjustables.

Edited by Spitz, 21 July 2011 - 04:09 PM.

[minilee94]

thing is thou is that i got my tool with the car and it was from mini sport

[minilee94]

yes the car is off oall wheels on blocks . So it definitely will go bang wich ever way i do it

[Glenn S]

It is very easy and safe to cut the alloy trumpet in half with an electric sabre saw/ recipricating saw.

[minilee94]

oh right il have to ask my dad if he has got saw of some sort