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#Post#: 87679--------------------------------------------------
Gearbox & Transfer Plugs
DIR By: 0jonny0
Date: April 28, 2014, 3:55 am
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Any good tips for removing the filler plugs, replaced my gearbox
but didnt make sure they were free before fitting.
Can you fill from the plates on the top? Are they opposite
thread?
I have given the transfer plug some stick, snapped a spanner on
it by trying to turn it with a 1/2 inch socket extension bar and
a length of pipe.
Is it ok to heat them up?
Any advice welcome. Jonny
#Post#: 87680--------------------------------------------------
Re: Gearbox & Transfer Plugs
DIR By: SteamPunk
Date: April 28, 2014, 4:09 am
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I will call this an idea rather than advice because it depends
on just how stuck the plugs are. :-?
Soak it in plus gas or a similar dismantling lubricant and wait
- 24 hours being ideal (with regular additional applications).
Get the spanner you need and then tap it down firmly along the
axis of the plug to get it solidly seated on the slight taper.
To undo, rather than applying a high static load (big lever),
apply a series of shock loads to break the corrosion/oil bond
(hit spanner with hammer, but short firm blows with a club
hammer - not frantic bashing with a small one or giant swings
with a 10lb sledge wagfinger )
I would not recommend the trick of hitting the head of the bolt
(plug) to shock the thread as I don't think this would work with
a tapered thread. Both plugs have conventional threads.
:smile1
#Post#: 87681--------------------------------------------------
Re: Gearbox & Transfer Plugs
DIR By: gilbo
Date: April 28, 2014, 4:45 am
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There is a proper spanner for undoing these. I have had one for
years - sort of like a dog bone shape with one end having square
cut out (which fits the square on the plug) and the other end a
variety of shapes - all designed to get any old plug out of any
old gearbox. From memory I think it was Melco who made 'em.
(Have a look on ebay 'Melco Sump Spanner, or some such). Once
you put this on the plug and give it a sharp tap in the 'undo'
direction they usually yield. Much more robust than a
conventional spanner.
I guess it wouldn't do any harn to warm the casing a bit if they
are that tight? Never understood why some POs tighten them to
'gorilla' settings.
HTH
Dave
#Post#: 87685--------------------------------------------------
Re: Gearbox & Transfer Plugs
DIR By: inglishg
Date: April 28, 2014, 6:59 am
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I had similar with mine some time ago, and I was told of a
method which included some form of heat and cold.
Apparently moderate heat is applied to the casing, and then
something cold sprayed on the plug, which obviously contracts
quickly.
Unfortunately I cannot recall if this method was used on mine,
as several days later the plug had been removed and now works
fine!!!
Someone else may know the full details of this method?
#Post#: 87716--------------------------------------------------
Re: Gearbox & Transfer Plugs
DIR By: Serious Series
Date: April 29, 2014, 2:39 am
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Warm the alloy casing as it will expand much quicker than the
steel plug , a small stilson on the plug if spanner will not
hold.
#Post#: 87730--------------------------------------------------
Re: Gearbox & Transfer Plugs
DIR By: logrover
Date: April 29, 2014, 8:54 am
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if these are the raised square type, then a 1/2" socket (drive
side) fits over them, so i welded two old sockets together so
one 1/2" square goes over the plug and the other side is
available for your 1/2" ratchet or breaker bar (with extension
pipe if required). always seems to work. and they are normal
thread not reversed.
#Post#: 87743--------------------------------------------------
Re: Gearbox & Transfer Plugs
DIR By: 0jonny0
Date: April 29, 2014, 4:28 pm
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Ok thank you for your responses. Like the idea of the spanner
ordered one yesterday. Going to try heat before I round it off
and the spanner. I was using the half inch when I snapped a
spanner.
Ta.
#Post#: 87893--------------------------------------------------
Re: Gearbox & Transfer Plugs
DIR By: 0jonny0
Date: May 6, 2014, 3:07 am
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Big thanks to Dave, bought a Melco Sump Spanner off the ebay,
and shifted the plugs no problem had to hammer them round then I
could use a half inch spanner. Its a good tool, well worth
having. The PO had been a bit chisel happy on the plugs.
HTML http://www.ebay.co.uk/itm/Vintage-Melco-DPW3-heavy-duty-multi-size-sump-plug-spanner-tool-used-see-details-/231216959537?pt=UK_Car_Parts_Vehicles_Automobila_ET&hash=item35d59ad031
HTML http://www.ebay.co.uk/itm/Vintage-Melco-DPW3-heavy-duty-multi-size-sump-plug-spanner-tool-used-see-details-/231216959537?pt=UK_Car_Parts_Vehicles_Automobila_ET&hash=item35d59ad031
All oils changed front to back.
Thanks
Jonny
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