Removing a rounded-off glowplug

I've managed to replace three of the four glowplugs in my 306 Turbo Diesel (the two at either ends were bastards; lack of access...). During previous ownership one of the glowplugs has been rounded off.

Does anyone have any suggestions on how to get it out? I thought about locking a couple of 8mm nuts onto the electrode and seeing if that would turn it, but a vice test on an old glowplug showed it was dead easy to shear the electrode off. I also considered hammering an undersized socket on and seeing if that would work but the electrode won't allow a standard-sized socket to fit on with the ratchet or extension bar. I guess I could buy a deep socket.

There isn't enough access to e.g. get a pipe wrench or mole grips on.

Any suggestions on how to remove it? I'm obviously conscious that maybe the thing is in there dead tight which caused whoever in the past to round it off, so I'm a little concerned about shearing the thing off which would be a nightmare...

Reply to
Abo
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Probably it has been rounded off by someone using the wrong size spanner, so it may not be very, very tight.

snap the little thread off and hammer on an undersized socket, preferably a single hex type. preferably use a T bar to turn. I would try when the engine is fully hot, obviously plus gas should have been applied a few times before.

Mrcheerful

Reply to
Mrcheerful

If you can't get the undersized socket to go on then a locking wheel nut remover (Or Irwin nut remover) should bite.

Reply to
Duncan Wood

Thanks guys, I'll try removing first with the locked nuts on the electrode; if it snaps off I'll hammer a socket on and go from there...

Reply to
Abo

Would it do any harm if he just forgot about it and let it start on the three new glowplugs? That's what I'd be tempted to do.

Reply to
Willy Eckerslyke

I was just starting on two until I bought a ratchet spanner with a flexi bit to get in behind the fuel filter housing!

Trouble is, I'm running on B100 biodiesel. when it's warm there is no problem but when the temperature was -5C like last week it was a real bitch to start on just the two cylinders. The weather has turned now and it starts fine but it's bugging me, I want to get it changed ;)

Reply to
Abo

I'll happily bet a pint that if & when can be swapped in that sentence :-)

Reply to
Duncan Wood

heh

Reply to
Abo

Swap the head!

Reply to
Depresion

Want to come round and do it?

Reply to
Abo

Hi Abo,

I'm also running 100% B100 (at 88p per litre why wouldn't I ... LOL) in my 306TD and have no problems even on the coldest days, so I'd agree to swap all 4 :)

Cheers, Mark

Reply to
marpate1

Nice one! Where do you get yours from?

Reply to
Abo

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Reply to
marpate1

I'd be tempted just to give Doug spasms. "Man drives 200 mile round trip to help hypermobile internet contemporise drive more."

Reply to
Depresion

Been there and done that with this problem...

I endede up with the plug shearing off :-( It ended up with the head coming off and the engineering co. drilling the damn thing out :-(

That said my plug was stuck in, it actually sheared off below the threads, no amount of carbon eater, plus gas or 25k of compression would shift out :-( (the head came off because of a number of other reasons and thats how and why i eventually got it out)

Can anyboy recommend a supplier in north manchester?

Reply to
Tom Burton

You know, I confuse easily. We ain't in uk.rec.transport no more.

Reply to
Douglas Payne

Use a socket that grips the flats like a metrinch/snap-on.

Fraser

Reply to
Fraser Johnston

Any good to you?

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Reply to
Abo

That's a good price, it's a shame I don't come down there. I've got no local suppliers (that I can find), I buy mine from near Blackpool as I get out that way every week. 93p/litre, a bit more than yours but still cheaper than diesel...

Reply to
Abo

lol

Reply to
Abo

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