Happy New Year to Landcruiser Owners in Australia
The following is a thread I started in UK.
One of the long-term members suggested I refer to you guys for help too.
Any response would be much appreciated.
(I have posted a pic of my Japanese 4.5l LPG conversion as well - with Macintosh on top. Weather here is wet and windy!)
Q: On motorway in torrential rain it fills the sills with water - you can hear it sloshing about, Fortunately have bungs (where I injected waxy) to remove / let the water out. Have had the drain 'tubes' blown through (maybe off - could that be the problem?) by my mechanic who says there's the sound of air escaping half way down level with the bottom of the windscreen, And also checked by Toyota main dealer (unbelievable £150 per hour) who poured water around the sunroof and because some came out at the bottom of the tube it was AOK! In the meantime there's still water filling the floor pan and splashing across the interior plastic side trim and - worse - the electrics.
I did have the inner and outer wings taken off and the inner wing rust cut out and new metal reshaped. Is there any way the cabin could be taking in water from the wheel arches because the inner wings have been incorrectly reinstalled or is it a sealed unit (after all the inner and outer wings are stand-alone bolt-ons) so no water can ingress through the front bulkhead? I haven't had a problem from jet washing for example.
Access to the tubes without peeling back the interior trim seems to be a problem.
And if the tubes need re-attaching or even replacing how is that done: pulling new ones through with a wire?
Or do I have to take the wings off again and will that give me access to the tubes or are they only accessible from the other side for the bulkhead?
My Haynes Manual doesn't give me detail on any of this btw.
Thanks - and Happy New Year
Nick
A: Happy New Year Nick,
I’ve had this as a possible diagnosis when I had a new windscreen fitted by Autoglass. After I think it was attempt 4 or 5 I decided to do it myself as I could see water seeping around the glass itself in the corners. Unless the rubber is fitted with flexible screen seal (I use a butyl screen sealer from EBay) it will leak. The Toyota manual states to use sealant.
If you do have water coming in from the sunroof, the join is at the top of the windscreen corners and the pipes can be pulled off there. Depending on the roof lining you have it may appear through the lining at that point or below at dash level.
The result (on mine at least) was water inside in the gutter area just inboard from the door cills. Sounds like this is where yours is.
One other possibility is sometimes the ends of the drain tubes get pushed up into the cills rather than just poking out. Sometimes they get blocked. Generally this results in water sloshing round in the sunroof aperture until it pours on your head. The sunroof is designed to leak and to take the water away iirc at front AND rear corners.
Tubes run down the A and C pillars internally.
Q: Thanks very much StarCruiser
Good info....
So for sure no chance of water being forced through the bulkhead somewhere?
There's nothing wrong with my windscreen. No water on top of the dash or in the corners.
No water on my head either.
No water coming through on the headlining.
But lots of water in the footwell
As well as going straight in to the cills.
Where do the rear drain tubes (C pillars) pop out under the car?
How do you check the tubes are connected?
How do you replace damaged / perished tubes?
For sure no chance of water being forced through the bulkhead somewhere?
A: The rear sunroof drain tubes exit the vehicle behind the rear wheels.
The front sunroof drain tubes run down the A pillars into the sill cavities on each side. The sills have the bungs fitted from the factory but also have slit drains that shoul allow the water to continuously drain from them. These are usually blocked but can be cleared using a cable tie of a bit of wire. It can be a bit of a bugger as the years of accumulated dust will take a bit to work out of there. if you have the factory side steps and don’t wheel in deep water you could leave the front most factory bung out and see if this reduces or stops the water problem.
The other place the the sun roof can let water in is at the front corners where there is a small piece of plastic that covers where the drive cable comes through the frame of the sun roof. These small bits of plastic sometimes gets bit bent out of shape and send water the wrong way.
There is lots of information on IH8MUD.Com
Q: Very helpful Sarmajornz thank you...
Now understand that the tubes running down the A posts into the sills will naturally fill the sills with water from the tubes.
Yes with the front bung out the water flows out freely.
The slit drains have been blocked by a well meaning 'mechanic' / fabricator who coated the whole of the undercarriage in lots of stone chip and waxoyl. I reckon the rear tubes will have been blocked too, as the rear cargo carpet is damp too.
I will have to attend to the blockages in the Spring....
Please confirm my thought process: If the A pillar tubes were blocked I would have a damp headlining and water running onto the centre console?
I don't have that.
But water is definitely coming down the inside of the passenger A pillar and showing in tiny trails across the passenger side footplate - and lying in the footwell under the carpet. The wiring loom is damp too, so may well be coming from the out of shape front corner plastics you mention.
Are replacement bits of plastic available or can I just have them bent back into shape?
PROVIDING the water's not actually coming through the bulkhead as water thrown up into the wheel arch.
Is the bulkhead / cabin section a sealed 'waterproof' unit unaffected by whether front wings - inner and outer - are attached or not?
In other words the wings dont need sealing to the sills or bulkhead?
So many questions - thanks for everyone's help.
I have to say apart from this water / leaking problem (only apparent since the wings off and heavy anti-rust treatment of the chassis / suspension, steering and drivetrain) the truck has been totally reliable and well worth the £17k total I've spent on it.
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The following is a thread I started in UK.
One of the long-term members suggested I refer to you guys for help too.
Any response would be much appreciated.
(I have posted a pic of my Japanese 4.5l LPG conversion as well - with Macintosh on top. Weather here is wet and windy!)
Q: On motorway in torrential rain it fills the sills with water - you can hear it sloshing about, Fortunately have bungs (where I injected waxy) to remove / let the water out. Have had the drain 'tubes' blown through (maybe off - could that be the problem?) by my mechanic who says there's the sound of air escaping half way down level with the bottom of the windscreen, And also checked by Toyota main dealer (unbelievable £150 per hour) who poured water around the sunroof and because some came out at the bottom of the tube it was AOK! In the meantime there's still water filling the floor pan and splashing across the interior plastic side trim and - worse - the electrics.
I did have the inner and outer wings taken off and the inner wing rust cut out and new metal reshaped. Is there any way the cabin could be taking in water from the wheel arches because the inner wings have been incorrectly reinstalled or is it a sealed unit (after all the inner and outer wings are stand-alone bolt-ons) so no water can ingress through the front bulkhead? I haven't had a problem from jet washing for example.
Access to the tubes without peeling back the interior trim seems to be a problem.
And if the tubes need re-attaching or even replacing how is that done: pulling new ones through with a wire?
Or do I have to take the wings off again and will that give me access to the tubes or are they only accessible from the other side for the bulkhead?
My Haynes Manual doesn't give me detail on any of this btw.
Thanks - and Happy New Year
Nick
A: Happy New Year Nick,
I’ve had this as a possible diagnosis when I had a new windscreen fitted by Autoglass. After I think it was attempt 4 or 5 I decided to do it myself as I could see water seeping around the glass itself in the corners. Unless the rubber is fitted with flexible screen seal (I use a butyl screen sealer from EBay) it will leak. The Toyota manual states to use sealant.
If you do have water coming in from the sunroof, the join is at the top of the windscreen corners and the pipes can be pulled off there. Depending on the roof lining you have it may appear through the lining at that point or below at dash level.
The result (on mine at least) was water inside in the gutter area just inboard from the door cills. Sounds like this is where yours is.
One other possibility is sometimes the ends of the drain tubes get pushed up into the cills rather than just poking out. Sometimes they get blocked. Generally this results in water sloshing round in the sunroof aperture until it pours on your head. The sunroof is designed to leak and to take the water away iirc at front AND rear corners.
Tubes run down the A and C pillars internally.
Q: Thanks very much StarCruiser
Good info....
So for sure no chance of water being forced through the bulkhead somewhere?
There's nothing wrong with my windscreen. No water on top of the dash or in the corners.
No water on my head either.
No water coming through on the headlining.
But lots of water in the footwell
As well as going straight in to the cills.
Where do the rear drain tubes (C pillars) pop out under the car?
How do you check the tubes are connected?
How do you replace damaged / perished tubes?
For sure no chance of water being forced through the bulkhead somewhere?
A: The rear sunroof drain tubes exit the vehicle behind the rear wheels.
The front sunroof drain tubes run down the A pillars into the sill cavities on each side. The sills have the bungs fitted from the factory but also have slit drains that shoul allow the water to continuously drain from them. These are usually blocked but can be cleared using a cable tie of a bit of wire. It can be a bit of a bugger as the years of accumulated dust will take a bit to work out of there. if you have the factory side steps and don’t wheel in deep water you could leave the front most factory bung out and see if this reduces or stops the water problem.
The other place the the sun roof can let water in is at the front corners where there is a small piece of plastic that covers where the drive cable comes through the frame of the sun roof. These small bits of plastic sometimes gets bit bent out of shape and send water the wrong way.
There is lots of information on IH8MUD.Com
Q: Very helpful Sarmajornz thank you...
Now understand that the tubes running down the A posts into the sills will naturally fill the sills with water from the tubes.
Yes with the front bung out the water flows out freely.
The slit drains have been blocked by a well meaning 'mechanic' / fabricator who coated the whole of the undercarriage in lots of stone chip and waxoyl. I reckon the rear tubes will have been blocked too, as the rear cargo carpet is damp too.
I will have to attend to the blockages in the Spring....
Please confirm my thought process: If the A pillar tubes were blocked I would have a damp headlining and water running onto the centre console?
I don't have that.
But water is definitely coming down the inside of the passenger A pillar and showing in tiny trails across the passenger side footplate - and lying in the footwell under the carpet. The wiring loom is damp too, so may well be coming from the out of shape front corner plastics you mention.
Are replacement bits of plastic available or can I just have them bent back into shape?
PROVIDING the water's not actually coming through the bulkhead as water thrown up into the wheel arch.
Is the bulkhead / cabin section a sealed 'waterproof' unit unaffected by whether front wings - inner and outer - are attached or not?
In other words the wings dont need sealing to the sills or bulkhead?
So many questions - thanks for everyone's help.
I have to say apart from this water / leaking problem (only apparent since the wings off and heavy anti-rust treatment of the chassis / suspension, steering and drivetrain) the truck has been totally reliable and well worth the £17k total I've spent on it.
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