Filling up Gearbox

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Grrrmachine
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Post Fri Jul 13, 2012 4:53 pm

Gearbox is off the car, but I can't for the life of me get the drain plug out. It's a shallow 17mm allen screw, and the usual trick of using the head of a bolt just isn't working, and I'm at risk of rounding out the plug.

So, is it possible to fill the 'box from the little nozzle at the top, the one that's loosely blanked off with a plastic cap?
e30den
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Post Fri Jul 13, 2012 5:22 pm

The fill plug is on the side of the box, drain plug is underneath. ( manual box ? )
Grrrmachine
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Post Fri Jul 13, 2012 5:31 pm

dur, I'm getting my words mixed up (too many languages in one day). I mean the fill plug on the side.
e30den
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Post Fri Jul 13, 2012 5:40 pm

If you have a welder handy then spot weld a bolt in place this will eliminate the risk of rounding it off :idea:
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Brianmoooore
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Post Fri Jul 13, 2012 7:27 pm

Can't you get the drain plug out either? It would be possible, although slow, to fill through the vent, but the drain hole would be easier.
Gearbox should ideally be hot to unscrew either of these steel plugs screwed into alloy.
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Post Fri Jul 13, 2012 8:05 pm

would using a blow torch help situations?
Grrrmachine
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Post Fri Jul 13, 2012 8:41 pm

Brianmoooore wrote:Can't you get the drain plug out either? It would be possible, although slow, to fill through the vent, but the drain hole would be easier.
Gearbox should ideally be hot to unscrew either of these steel plugs screwed into alloy.
Gearbox is bolted to the engine, so I can't readily flip it over to fill it from the drain plug (which is why I asked).

I'll try a mixture of a blow lamp and a proper 17mm allen key; I don't want to weld the nut if I can help it. But after 23 years, it does look like it's in there solid. And it doesn't seem the cleverest of designs...
e30den
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Post Fri Jul 13, 2012 8:57 pm

Take the box off the engine, easy peasy
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Brianmoooore
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Post Fri Jul 13, 2012 10:47 pm

willnz wrote:Put the bolt head into the plug socket and hit the bolt a few times with a heavy hammer.
Bear in mind that the side of the gearbox is a not particularly thick piece of alloy!
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Post Sat Jul 14, 2012 2:39 am

If you cannot get the drain/fill plugs out with the 'box off the car,I would question the suitability of the 'box.....


Very much easier to make an executive choice now,and fit a 'box with removable plugs!
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Billwill
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Post Sat Jul 14, 2012 8:57 am

Drill a hole in the existing plug....put grease on the drill to catch metal chaff.....tap a new thread in the hole or block with rubber plug.
:)
Grrrmachine
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Post Sat Jul 14, 2012 3:23 pm

Heat, welding, hammering, drilling new holes 8O

Your cumulative advice worked; it made me so scared about knackering the gearbox that I went out and bought the right tools!

Image

Stanley 17mm Allen socket got the job jobbed.
e30den
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Post Sat Jul 14, 2012 4:05 pm

Grrrmachine wrote:Heat, welding, hammering, drilling new holes 8O

Your cumulative advice worked; it made me so scared about knackering the gearbox that I went out and bought the right tools!

Image

Stanley 17mm Allen socket got the job jobbed.
You got there in the end :)
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Gavla
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Post Sat Jul 14, 2012 6:05 pm

I trust you have added a "Correct Tools" section to the Wiki? :D
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Post Sat Jul 14, 2012 6:07 pm

You know, that's not a bad idea...
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Post Sun Jul 15, 2012 8:11 pm

Was just gonna suggest this from Halfords but I see you already have it out..

http://www.halfords.com/webapp/wcs/stor ... yId_255216

17mm oil drain hex key.! I got this when I did mine and like yourself I had to get a breaker on it as it was mad tight.!