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Author Topic: Sump plug  (Read 2649 times)

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Dr Jones

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Sump plug
« on: 24 July 2008, 17:58:43 »
Hi all,

My sump is leaking - the plug is likely to be cross-threaded so a local garage tells me, although it might be on the sump itsself.

Can anyone tell me the diameter of the plug (so I can either replace it or get a slightly bigger one)

Many thanks

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ians

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Re: Sump plug
« Reply #1 on: 24 July 2008, 18:30:52 »
Best just get one from Vx.   Those things are always over torqued by garages in my experience.
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Richard A

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Re: Sump plug
« Reply #2 on: 24 July 2008, 18:59:33 »
Also when I had the same thing happen it was the thread on the sump plug which was damaged, ie not sump pan thread as the Vx dealer suggested.
P.s. explain to the dealer what type of plug you have, torx drive or hex head etc
regards
richard a
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Andy B

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Re: Sump plug
« Reply #3 on: 24 July 2008, 20:05:21 »
Quote
Also when I had the same thing happen it was the thread on the sump plug which was damaged, ie not sump pan thread as the Vx dealer suggested.
P.s. explain to the dealer what type of plug you have, torx drive or hex head etc
regards
richard a

Having had to replace a lower steel sump pan I'd have gone with Vauxhall's theory. The steel pan has for some strange reason an ally insert pressed into it that carries the female thread. The steel plug, obviously, screws into that. There have been a few instances on the forum where the plug goes round and round and round without actually coming out.  :(
The lower sump pan wasn't too expensive to replace & come complete with a new plug. (£40 ish IIRC)
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maria

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Re: Sump plug
« Reply #4 on: 24 July 2008, 20:13:52 »
On the ones with the rubber seal - the torque is only 10nm...
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ians

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Re: Sump plug
« Reply #5 on: 24 July 2008, 20:59:23 »
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On the ones with the rubber seal - the torque is only 10nm...

Yes it is - on one of my cars I needed a breaker bar to loosen it off :o >:(
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Dr Jones

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Re: Sump plug
« Reply #6 on: 25 July 2008, 10:40:50 »
Vx want £120 to repair it, if they need to cut a new thread in the sump. Hour and a half labour, apparently. New sump pan plus gasket is about £240 (from dealer; could find cheaper by shopping around and waiting)

Found out the sump plug is 14mm - the old man (who is a mechanic) suggests tapping a bigger hole into the sump and fitting a 16mm plug.

Going to let him try that one!
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Marks DTM Calib

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Re: Sump plug
« Reply #7 on: 25 July 2008, 10:46:29 »
My approach is to use a spark plug repair helicoil insert and use a peugeot sump plug......takes about 10 mins!
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Marks DTM Calib

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Re: Sump plug
« Reply #8 on: 25 July 2008, 10:54:15 »
Should have said, the standard sump plug is M14 x 1.5

Spark plugs are M14 x 1.25 but, this is the same as a peugeot sump plug.
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Andy B

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Re: Sump plug
« Reply #9 on: 25 July 2008, 14:59:14 »
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My approach is to use a spark plug repair helicoil insert and use a peugeot sump plug......takes about 10 mins!

But there's next to f*** all to helicoil if it has a 2 part sump. As said the lower pan is steel with an ally insert. By the time you've fannied about trying to put another thread in, you might aswell remove & replace the whole lower sump pan .... assuming that all V6 sump pans are as mine.
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Andy B

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Re: Sump plug
« Reply #10 on: 25 July 2008, 15:02:05 »
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Vx want £120 to repair it, if they need to cut a new thread in the sump. Hour and a half labour, apparently. New sump pan plus gasket is about £240 (from dealer; could find cheaper by shopping around and waiting)

Found out the sump plug is 14mm - the old man (who is a mechanic) suggests tapping a bigger hole into the sump and fitting a 16mm plug.

Going to let him try that one!

The lower sump pan is more like £40. I suspect they're talking about the main ally casting. I replaced the lower sump pan at Bolton Council's expence for less than £60 inc more oil.

Mark is going to tell me now, that not all car's have the same sump as mine!  ::)  :y
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Dr Jones

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Re: Sump plug
« Reply #11 on: 25 July 2008, 15:02:33 »
Trying it tomorrow morning...I'll let you know what happens.... :-/

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Andy B

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Re: Sump plug
« Reply #12 on: 25 July 2008, 15:13:39 »
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Trying it tomorrow morning...I'll let you know what happens.... :-/


I've tried to find the reciept .... but can't. I'm sure though that if someone was to have access to EPC  ;) they could sort you out with a part number. It's 'glued' in place with the grey sealnt in the mini mastic tube.
Have a  look at your sump. Does it have a seperate trapezium shaped steel sump pan?
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Richard A

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Re: Sump plug
« Reply #13 on: 25 July 2008, 19:42:54 »
Why do bother posting answers !!!! I have posted that the same thing happened to me, I bought a secondhand sump off 'Issunaz', took off the damaged sump only to see the thread was ok and  IT WAS THE SUMP PLUG THREAD that was stripped, a new sump plug would have done the job.
P.S. Helicoil, don't both to little material.
Buy a new sump plug first.
regards
richard a
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Andy B

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Re: Sump plug
« Reply #14 on: 25 July 2008, 19:53:08 »
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Why do bother posting answers !!!! I have posted that the same thing happened to me, I bought a secondhand sump off 'Issunaz', took off the damaged sump only to see the thread was ok and  IT WAS THE SUMP PLUG THREAD that was stripped, a new sump plug would have done the job.
P.S. Helicoil, don't both to little material.
Buy a new sump plug first.
regards
richard a

Dons hair shirt & skulks to a corner of the garden with flail in hand.  :(

PS Have you missed a word out?   :-?
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