Removal core inners & mini pumps

mw22

So after ditching a 10+ year old specialized mini pump and stealing the wifes pocket rocket pump with a flexible hose... after a visit from the puncture fairy, I seem to have encountered a problem!

The flexible hose screws onto my valve, all pumps up fine - go to unscrew the pump and it unscrews the removal core!!!

Having a quick google whilst writing this, I see Park Tools to a tool to tighten it... anyone have any experience if these work?

Or do I just need to bin off either the better pump or continental inners!

Cheers

craker

Remember those old flat pressed multitools that came with new Raleigh bikes (I'm talking the back end of the '70s here)? There was probably a notch in that the right size for a valve.

Anyway, I've moved back to pumps with a hose, as I had some nasty incidents with the push on sort where I pushed on too hard and snapped the valve stem. Nothing like changing a tube on a cold day, inflating it nice and hard only to find it's now broken and you need to patch the original one. There an emiticon for that somewhere :evil:

hopkinb

One of the spoke key notches on my multitool works on valve cores as I discovered to my relief when I punctured recently. I have valve extenders, and I hadn't put the special little tool in my saddle bag.

keef66

This should be a sticky. Most people have been there and done that, me included. Mine when it was snowing ferociously.

Either buy tubes without removable cores, or tighten them up before you use them. I have a tiny adjustable spanner which I use on the core while gripping the stem with pliers. I've also read that in an emergency one of the notches on a multitool chain tool will fit the core, but I don't know how you'd grip the valve stem out on the road.

Once before a sportive I'd just topped up my rear tyre, and when I disconnected the pump, the valve core shot past my ear and vanished. Wasn't even a screw-on pump. Luckily this was in the garage the night before...

hopkinb

keef66 wrote:

I've also read that in an emergency one of the notches on a multitool chain tool will fit the core, but I don't know how you'd grip the valve stem out on the road.

This is what I meant above, it's a notch on the chain tool that I used. Just hold the valve stem at the base where it joins the tube, and the rubber gives a bit of grip.

secretsam

Been there, done that. Drove me nuts. Changed pump in the end to one with a hose.

reformedfatty

Having a hose is no guarantee of success! My Leyzne HP drive (with hose) is a remarkably effective tool for removing valve cores.

I carry a leatherman with me anyway on my rides so just use the pliers to nip it up

elbowloh

I ended up dumping the use of continental inners.

Some people super-glue/threadlock the core in.

mamil314

Just gently tighten valve cores with pliers on all new inners

mw22

Cheers - temp solution to get me home was to borrow a different pump.
Will tighten (and glue - why do they EVER need to come out??) the inners later on current tube and any spares.
Also have the tool on order.

Dont think I'll bother with Contis when I re-order the next batch.

Thanks for replies - glad it wasnt just me.

hopkinb

mw22 wrote:

Will tighten (and glue - why do they EVER need to come out??).

Valve extenders for my vanity deep section wheels.

godders1

Same with Schwalbe inners. As mentioned above I put a blob of blue loctite on the thread before use.

hopkinb wrote:

mw22 wrote:

Will tighten (and glue - why do they EVER need to come out??).

Valve extenders for my vanity deep section wheels.

Also for adding puncture prevention sealant (for those into that sort of depravity).

pastryboy

mamil314 wrote:

Just gently tighten valve cores with pliers on all new inners

It really is that simple. Never had one come off after doing this.