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The problem is essentially twofold, in sufficient depth of water the cooling to the axle by the water will create enough of a vacuum to potentially pull water into the axle if the factory breather is under water and in some way compromised, it is only a spring loaded cap arrangement that supposedly makes a seal when the pressure overcomes the spring force. They are not good. Secondly the seals on the steering swivels are only really to keep dust and mud and larger rocks out of the cv joints, submerged they will let water pass which then sits in the bottom kingpin bearing and kills them quick fast in a hurry giving you death wobble. Knowing this if you are determined to go playing in water you have to accept a significantly higher level of maintenance than if you give water a wide berth. I prefer not rebuilding axle joints to playing in water. And all that assumes that the water is clean and not deep enough to get into things like alternators and sensors, if it's dirty water especially from silt laden rivers and ponds it is going to act like a course grinding paste and require serious maintenance.
Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
Bellerophon (2024 grello van daily
ADOS Attention Deficit Ooooh Shiny!
Lambert wrote: The problem is essentially twofold, in sufficient depth of water the cooling to the axle by the water will create enough of a vacuum to potentially pull water into the axle if the factory breather is under water and in some way compromised, it is only a spring loaded cap arrangement that supposedly makes a seal when the pressure overcomes the spring force. They are not good. Secondly the seals on the steering swivels are only really to keep dust and mud and larger rocks out of the cv joints, submerged they will let water pass which then sits in the bottom kingpin bearing and kills them quick fast in a hurry giving you death wobble. Knowing this if you are determined to go playing in water you have to accept a significantly higher level of maintenance than if you give water a wide berth. I prefer not rebuilding axle joints to playing in water. And all that assumes that the water is clean and not deep enough to get into things like alternators and sensors, if it's dirty water especially from silt laden rivers and ponds it is going to act like a course grinding paste and require serious maintenance.
Wow!! Great points and very startling info.
I will only be wading in water if nessersary from now on.
Lambert wrote: The problem is essentially twofold, in sufficient depth of water the cooling to the axle by the water will create enough of a vacuum to potentially pull water into the axle if the factory breather is under water and in some way compromised, it is only a spring loaded cap arrangement that supposedly makes a seal when the pressure overcomes the spring force. They are not good. Secondly the seals on the steering swivels are only really to keep dust and mud and larger rocks out of the cv joints, submerged they will let water pass which then sits in the bottom kingpin bearing and kills them quick fast in a hurry giving you death wobble. Knowing this if you are determined to go playing in water you have to accept a significantly higher level of maintenance than if you give water a wide berth. I prefer not rebuilding axle joints to playing in water. And all that assumes that the water is clean and not deep enough to get into things like alternators and sensors, if it's dirty water especially from silt laden rivers and ponds it is going to act like a course grinding paste and require serious maintenance.
Thanks for the superb info. Maybe I'll steer clear of water then. Wasn't planning on any mud running, just maybe take it out on a fording trip. I'll stick to taking my Land Rover for such activities.
Stuff like this, although certainly not the bottom one (which isn't a ford anyway)
One way to help with this is to not plunge straight in. Instead let the axles and transmission cool before doing water. If you are slow off roading they will be cool anyway, if you are coming off a fast road run they will be hot. I have to let my boat trailer wheels cool for the same reason before launching
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Martin
2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses
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