406s and floods - a warning

Shocks, springs, anything to do with the running gear

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406s and floods - a warning

Postby steve_earwig » Sat Oct 06, 2012 11:29 pm

Yet another 406 just hydrolocked and I'm ashamed to say we have no warning for it. SO here is one:

Due to the location of the standard air intake on ALL 406s they seem to be very liable to sucking up water, even with low levels of flooding. Water does not compress like an air/fuel mixture and the likely result is bent conrods or even a cracked block.

DO NOT DRIVE AT SPEED - this probably makes the situation worse as the car can build up a bow wave.
DO NOT GUN THE ENGINE - what are you, nuts? :shock:

You have been warned!

See:
viewtopic.php?f=17&t=8799&p=83098&hilit=+drill#p83098
viewtopic.php?f=5&t=3769&start=15&hilit=drill
viewtopic.php?f=5&t=18355&p=182463&hilit=+holes+pipe#p182463

-/-

A swift How To - how to remove the link pipe from below the air filter (note - this is on my 12-2003 built 2.0 HDi 110 so I'm not sure if all 406s are the same):

Tools required - your hands and possibly a torch.
Time required - 5 minutes (maybe more, depending on your tolerance to rain dripping down your neck)

Start off by moving the air filter box out of the way. It's held in place by a little clip underneath, push this tang towards the back of the car and pull the front of the air filter box upwards. Be careful not to overstretch the MAF sensor wires:
Image

The top of the pipe is slotted into the air filter box bracket, pull this little clip down and slide the pipe towards the front of the car:
Image

The pipe will now need disconnecting from the feed pipe where it comes through the inner wing. It's reluctant but it will come, just try and keep it straight:
Image

The pipe removed:
Image

Once it's out you need to replace the air filter box. Obviously it now lacks the lover clip but if you slot it back on the holder it's not going to go anywhere:
Image

The holes in the bottom of my pipe - enough to stop the engine drawing in water? No idea:
Image

Possibly not a permanent solution but it might get someone out of trouble.
Talking bollocks sin©e 2007

2004 D9 2.0 HDi 110 Estate lhd VF38ERHZF81657352 - now slod :( :( :(
1991 Yamaha TDM850
2008 Toyota Recall4 2.0 VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVTI ATM LHD JTMBH31V90D007261 - flimsy piece of crap.
1953 Matchless G3LS - Seriously!
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Re: 406s and floods - a warning

Postby piglet » Mon Oct 08, 2012 12:18 pm

Years back I watched a 4WD convoy ford a river in NT Australia.
The rich guys all had Toyotas Land cruisers with snorkels and had no trouble but the budget guy just had a 4WD Subaru estate road car, no snorkel.
But what this fella lacked in wonga he made up for with cunning & skill, he wrapped&lashed his groundsheet round the front of the car and forded with just the right speed to hold the bow wave in front and in so doing lowered the water level in the engine bay.
He made it through to my disbelief, It was nearly up to his windows!

Sorry, not relavent.
2003 estate Hdi90 Siemens Fully pimped (roofrack&towbar)
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Re: 406s and floods - a warning

Postby steve_earwig » Mon Oct 08, 2012 12:24 pm

But interesting :cheesy:
Talking bollocks sin©e 2007

2004 D9 2.0 HDi 110 Estate lhd VF38ERHZF81657352 - now slod :( :( :(
1991 Yamaha TDM850
2008 Toyota Recall4 2.0 VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVTI ATM LHD JTMBH31V90D007261 - flimsy piece of crap.
1953 Matchless G3LS - Seriously!
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Re: 406s and floods - a warning

Postby scotty73 » Mon Oct 08, 2012 2:41 pm

I remember seeing Rex Hunt (discovery channel Ausie fishermen years back) do the ground sheet thing i thought that's how all Ausies got about?

I remember reading on here that someones son's 406 cut out in a puddle and was lucky to get away with it i think i told my mrs about it at the time but will mention it again just to drum it in :roll:

Steve have you removed the pipe or drilled holes and re-fitted?
2000 W 2.0hdi 110 7 seat estate Blue.
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Image
And this glue is for my submarine not for putting up you're f*c*ing noses, and dont think i dont notice cos i do... Buy your own f*c*ing glue!!! Fatty Lewis Twin town 1997.
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Re: 406s and floods - a warning

Postby steve_earwig » Mon Oct 08, 2012 2:51 pm

I just removed it. The holes are in it already but I'm not sure if they'd be big enough to stop it sucking water in (and I aint doin' no experiments :supafrisk: ) It's only a quick fix and probably doesn't raise the actual height of the intake by much but there's some weird fluid dynamics style of thing going on under the wheel arch where it normally draws from.
Talking bollocks sin©e 2007

2004 D9 2.0 HDi 110 Estate lhd VF38ERHZF81657352 - now slod :( :( :(
1991 Yamaha TDM850
2008 Toyota Recall4 2.0 VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVTI ATM LHD JTMBH31V90D007261 - flimsy piece of crap.
1953 Matchless G3LS - Seriously!
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Re: 406s and floods - a warning

Postby trem1 » Mon Oct 08, 2012 5:59 pm

yep i lost my 406 by wading through water no more than about 6-8 inches, i learned this to my cost.
Nice guide there steve 8)


2004 Iron Grey 407se 136bhp......Written Off
2006 Moonstone blue 407 se 136 bhp.....Written off
2006 silver 407 SW..........replacement
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Re: 406s and floods - a warning

Postby teamster1975 » Tue Oct 09, 2012 7:12 pm

I'm locking this so it doesn't turn into a huge thread, great job Steve :)
1996 406 1.8LX Got a bad case of hydro lock!
1996 406 Executive 2.0 Turbo XU10J2TE No longer hangin' on in there :(
1997 Honda CB500V
2003 Volvo V40 1.8 GDi SE killed by a nutter in a beemer 5 series
2008 Mondeo 2.0 TDCi Titanium X

"Always look on the bright side of life, dedo, dedo dedodedo"
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Re: 406s and floods - a warning

Postby steve_earwig » Tue Oct 09, 2012 7:22 pm

Fairy nuff. I was actually hoping for some feedback on the link pipes (go out and check guys, don't wait until you're up to your knees to figure it out :wink: ) so if anyone's got anything to add stick it on poor V6Exec's thread here viewtopic.php?f=1&t=18835
Talking bollocks sin©e 2007

2004 D9 2.0 HDi 110 Estate lhd VF38ERHZF81657352 - now slod :( :( :(
1991 Yamaha TDM850
2008 Toyota Recall4 2.0 VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVTI ATM LHD JTMBH31V90D007261 - flimsy piece of crap.
1953 Matchless G3LS - Seriously!
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