Wading Plugs

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Originally Posted by It'sNotWorthComplaining!

The owners manual state only when water crossing, at other times remove to all oil etc to drip over your driveway , that way the clutch surfaces don't get contamination. It also said Autos don't have them, but TDI Autos do on the timing case

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oh ok coz i bought a wading plug and it fits into a provision in the tourqe convertor

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Originally Posted by Bush65

1/4 bsp.

If it is a 300Tdi,

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there is another 1/4 bsp wading plug in the timing belt cover.

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This is the one I really need to get

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Originally Posted by disco_mitch

oh ok coz i bought a wading plug and it fits into a provision in the tourqe convertor

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According to page 125 of the owners manual it states that the flywheel housing on Automatic models is completely sealed to exclude mud and water so no need to fit wading plug, in the wading section it also says not to go over 50cm and remove the CD changer LOL.

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Originally Posted by disco_mitch

ok so i just bought a wading plug 12bucks later, now my question is should it only be in why going through water or is it something that you put in when you air down take out when you air up

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You'd be OK for leaving them in for a few days or even a couple of weeks ( if there's no obvious oil leaks from the hole ). Put them in at home before you go offroading, and take them out at first opportunity after you get home.

If you have a manual transmission you need 2 wading plugs.

Do you really need them if you only wad once a blue moon......?

If I understand this right...... If I do not put a wading plug in.... and I wade in the water (just like the song:)) deep enough for water to ingress, the timing belt will get wet...?

Having just replaced mine.... clearly I am not keen to limit it's life.

Thanks

Jay

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Originally Posted by Jay

Do you really need them if you only wad once a blue moon......?

If I understand this right...... If I do not put a wading plug in.... and I wade in the water (just like the song:)) deep enough for water to ingress, the timing belt will get wet...?

Having just replaced mine.... clearly I am not keen to limit it's life.

Thanks

Jay

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I guess it's not so much the water but other crud and dirt that's mixed with it. I wouldn't fancy that getting into the timing belt, pulleys and clutch mechanism.

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Originally Posted by Bush65

BSPP and BSPT are Standard thread systems. Some people tack M or F on the end of the BSP designation to denote male and female, but I personally don't like that.

With the USA national pipe thread standards, NPT denotes National Pipe Taper, and NPTF is a Standard for Dryseal threads. Dryseal threads are male threads designed to have an interference fit on the crests so they provide a more reliable seal at pressures commonly used with hydraulic systems.

With hydraulic systems, BSPT will often leak, which is why it is more usual to use BSPP with seal washers. NPTF is the only taper thread I would happily use in a hydraulic system, but then only if there was no other choice (taper threads can crack/distort valve housings if they are overtightened in an attempt to stop leakage).

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Hi Guys,

To hijack a bit further and to add to this......

A lot of Oil and Gas installations I have worked on use NPT for just about every threaded seal (the ones that aren't welded that is), high or low pressure (up to 100 bar in some cases) with suitable thread tape (not the crap your plumber uses from bunnings), or an approved liquid version (Loctite 567 or Swagelok Swack).

You're spot on Bush 65, to the point where over tightening doesn't help to stop leaks (even if you don't smash the thread to bits), only being installed correctly in the first place will stop a leak, although Hydraulics is a different kettle of fish to oil & gas.

To Hijack again......

Has anyone ever designed or built or considered a permanent "breathing wading plug" with some sort of vented catch can with a drain before? Similar to diff breathers with a small can possibly, which could be drained around service time into something that is not my driveway?

Has this already been thought of or could this make me a millionaire without having to sit like a dill in front of Eddie McGuire?

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Originally Posted by It'sNotWorthComplaining!

According to page 125 of the owners manual it states that the flywheel housing on Automatic models is completely sealed to exclude mud and water so no need to fit wading plug, in the wading section it also says not to go over 50cm and remove the CD changer LOL.

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Never mind what the manual says, I have an auto TDI (19944), and it has an open drain hole on the flywheel housing.

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Originally Posted by PSi

Never mind what the manual says, I have an auto TDI (19944), and it has an open drain hole on the flywheel housing.

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My 96 tdi auto also has a drain hole. Although there is no clutch to contaminate with oil, I don't after a few years of rear main leaking, like to think what might happen if there was no drain and the converter housing was full of oil.

Also I vaguely remember reading somewhere that there is a tool that you can insert into a locating hole in the flywheel/ drive plate to lock the crankshaft at TDC when changing timing belt.

Dave.

I have a 97 V8 manual and have checked before for the wading plug hole and have not been able to find it. It should be right at the bottom of the bellhousing, just behind the back of the sump - right? Mine just has a small notch out of the bellhousing between it and the front cover plate. It appears to me that this is the only drain hole. Is my car unique, or am I looking in the completely wrong area?