Differential filler plug replacement.

PostPost by: Bombay Racing Green » Sat Aug 24, 2013 8:22 pm

Hello all,

Before I post in the wanted section, is there any where I can purchase a differential filler plug? The hex head on mine is pretty much circular in shape as I discovered this afternoon! I suppose I could cut a slot in it and fit a flat head screw driver in it but I'd like to explore the replacement avenue first.

Thanks,

Pete
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PostPost by: oldelanman » Sat Aug 24, 2013 8:48 pm

If you mean the level plug on the back of the diff case SJ Sportscars list it.

http://www.sjsportscars.co.uk/index.php?mod=10
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PostPost by: billwill » Sat Aug 24, 2013 9:47 pm

I don't think you can cut a slot in it anyway; the level plug on the back is hollow, I think, for lightness and I presume the one on the top of the diff is hollow also.


Best way of getting at it is to take out the spare wheel and use a 2 to 3 inch circular hole-saw to make a large neat hole in the front side of the boot. But before you do so get a suitable blind grommet to fill the hole or make a disk of aluminium which you can screw with self-tappers onto the front wall.
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PostPost by: kenb » Sat Aug 24, 2013 10:50 pm

I seem to remember the original is a Whitworth size?
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PostPost by: Bombay Racing Green » Sat Aug 24, 2013 11:05 pm

Thanks Roger and Bill. Looks like it alright.

Yes, I had noticed it was hollow but wasn't sure how far it went. Thankfully a previous owner had cut a neat hole in the boot and used a rubber plug to tidy it up as well as seal the hole.

Thank you for the help.

Pete
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PostPost by: billwill » Sat Aug 24, 2013 11:18 pm

Take a look in a plumbers, it may be a standard plumbing stopper.
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PostPost by: Bombay Racing Green » Sun Aug 25, 2013 9:29 am

Great Bill, true "blue sky" thinking!

I'll nip around to the plumber's merchant's in the morning.

Thanks,

Pete
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PostPost by: AHM » Sun Aug 25, 2013 12:57 pm

1/2" BSP
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PostPost by: englishmaninwales » Mon Aug 26, 2013 9:41 pm

billwill wrote:Best way of getting at it is to take out the spare wheel and use a 2 to 3 inch circular hole-saw to make a large neat hole in the front side of the boot. But before you do so get a suitable blind grommet to fill the hole or make a disk of aluminium which you can screw with self-tappers onto the front wall.


What a great idea !!
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PostPost by: billwill » Tue Aug 27, 2013 12:21 am

englishmaninwales wrote:
billwill wrote:Best way of getting at it is to take out the spare wheel and use a 2 to 3 inch circular hole-saw to make a large neat hole in the front side of the boot. But before you do so get a suitable blind grommet to fill the hole or make a disk of aluminium which you can screw with self-tappers onto the front wall.


What a great idea !!



Not novel to me I think I read it on this forum long ago, before I did it to mine.
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PostPost by: pharriso » Tue Aug 27, 2013 2:05 am

billwill wrote:
Best way of getting at it is to take out the spare wheel and use a 2 to 3 inch circular hole-saw to make a large neat hole in the front side of the boot. But before you do so get a suitable blind grommet to fill the hole or make a disk of aluminium which you can screw with self-tappers onto the front wall.


Is there really a need to do this? I checked my diff level last weekend.. Just jacked up the rear left. Did'nt even take the wheel off.. An hour max...
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PostPost by: robertverhey » Tue Aug 27, 2013 9:30 am

I suspect checking is relatively straightforward, but.topping up without getting it everywhere might not be?
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PostPost by: 69S4 » Tue Aug 27, 2013 10:41 am

A small hole - just large enough to pass a piece of 1/2" hose (cut from my garden hose :D ) - makes topping up easy and a std blanking grommet will block it. The hardest part is deciding on the exact spot to drill the hole so it lines up with the filler plug.
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PostPost by: pharriso » Tue Aug 27, 2013 11:12 am

robertverhey wrote:I suspect checking is relatively straightforward, but.topping up without getting it everywhere might not be?


I used a 12" piece of tubing attached to the oil bottle... Not too bad.

Billwill was taking about a 2-3" hole...
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PostPost by: Bombay Racing Green » Tue Aug 27, 2013 11:49 am

Just back from the plumber's merchant's. Indeed, AHM, it is a 1/2 BSP plug with an 18 mm hex head. The drain was an 8mm plug apparently. Two of each and fibre washers, ?6.

Thanks for the help.

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