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Stahlbus Oil Drain Valve - review...


Mr Fro
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After passing it’s MOT, I decided to give the ZX6r a little treat by way of a service. I’d bought a couple of these Stahlbus valves direct from Germany a few weeks back for ~£30 each (cheaper than the UK!). The valve is a direct replacement for the OEM drain plug comprising three components. There’s the valved part that sits in place of the OEM plug and a bayonet component that fits in to the main body and releases the valve to allow waste oil to flow through. The third part is the screw on cap that provides a secondary seal in case of valve failure. It also makes the valve track friendly. 

http://i760.photobucket.com/albums/xx246/Mr_Fro/IMAG0233.jpg


The valve is very pleasingly made out of lightweight alloy and has two distinct advantages over the standard drain plugs. Firstly, you don’t risk getting your hands covered in oil or splashing dirty oil over the floor and secondly, if your plug/sump is a bit jiffy – you can permanently fix this in and not have to worry about unscrewing it again.


The valve is slightly longer than the OEM plug when the cap is fitted.

http://i760.photobucket.com/albums/xx246/Mr_Fro/IMAG0237.jpg


Simply drain the oil and fit the new valve:

http://i760.photobucket.com/albums/xx246/Mr_Fro/IMAG0239.jpg


To use the valve you unscrew the cap and pop in the bayonet component:

http://i760.photobucket.com/albums/xx246/Mr_Fro/IMAG0240.jpg


The oil will only flow once the bayonet is fully home and stops immediately the bayonet starts to disengage from the valve. I “deliberately” overfilled the sump so have tested the valve fully. There’s a really nice positive feel as the bayonet locates and no excess flow once it’s disengaged.


The complete valve does sit a little proud of the fairing on my bike but it’s only slight. I’m not concerned about the protrusion as the fairing bolts sit lower and have no grounding marks.

http://i760.photobucket.com/albums/xx246/Mr_Fro/IMAG0242.jpg


I’m quite impressed by this unit. The down sides are that the flow rate through the valve is lower meaning it’ll take longer for the oil to drain and there’s no option to have it magnetised to pick up bit of metal from the sump – minor things really considering it’s easy to stick a neodymium magnet to the outside of the sump. The biggest bonus by far is that there’s no longer a need to remove any fairing to do an oil change which easily makes up for the longer drain time.  I will be fitting the other to the ZXR750 later this week and to Mrs Fro’s Lotus when that comes round for it’s service.

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Nice 8-)

now you need a bayonet fitting on the filler cap to stop you pouring oil all over the place!

And one for the fuel tank - MotoGP style. I'm all about saving time at the pumps. :-)

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This sounds rather interesting, and would minimise the normal mess! Is the bayonet part a propriety part/fitting or do you think it would be easier enough to make your own/pick one up cheap if you lost it?

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Dead easy to make. If you've got a lathe! :-)


I've not tried anything else in there but I guess it's proprietary. I reckon there'll be plenty kicking about on ebay/similar as you only need one bayonet thing for all your valves (I'll probably end up with 3 or 4). Either that or get one from Stahlbus.

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