Any suggestions how to stop rainwater dripping onto the dashboard switches and my clutch leg? I see that there are shims on the clamps at the bottom of the screen, but I doubt the removal of a shim there will increase sealing pressure suficiently at the top edge. The rubber seal does not appear to be damaged in any way and is still pliant.

Thanks
Maurice

Zitat von: Mo am 8.Juni 2022 10:56:40

Any suggestions how to stop rainwater dripping onto the dashboard switches and my clutch leg? I see that there are shims on the clamps at the bottom of the screen, but I doubt the removal of a shim there will increase sealing pressure suficiently at the top edge. The rubber seal does not appear to be damaged in any way and is still pliant. Thanks Maurice

Are the hinges on top still rotating smoothly?
They can become rusty, refuse to rotate fully, and bend the (moving) frame on top (though they more likely get stuck in the closed position (at first) than in the open position; yet the bending might be semi-permanently, possibly then causing leakage on top)
Kicking the pin out can be a tedious job....
(forgot whether the original is also brass (and the rust is from the frame (stationary + moving), but at least I replaced it with brass)
(mine didn't cause leakage, but having dual safari-windscreens, I noticed a slight (side-) angle difference in their full-open position)
(one hinge being more stuck/rusty than the other, on that side; other windscreen was fine overall)

Zitat von: WJM am 8.Juni 2022 11:32:30

Are the hinges on top still rotating smoothly?

Yes, the hinge operation is smooth and easy.

That's a good point though, I never considered that the problem could be caused by the hinge itself being out of alignment. I will have to get a stepladder to take a closer look.

Thanks
Maurice

Hi,

When you open the screen, you can see that it is possible to add a sealing on the screen-frame, too. I tried various combinations (seal on body and screen, seal on screen and only rubber on body). For me seal on screen - mounted with sealing fluid and only a rubber-protection on the body made the best result.

Kind regards!
Raffi

Zitat von: Mo am 8.Juni 2022 14:31:32

Zitat von: WJM am 8.Juni 2022 11:32:30 Are the hinges on top still rotating smoothly? Yes, the hinge operation is smooth and easy. That's a good point though, I never considered that the problem could be caused by the hinge itself being out of alignment. I will have to get a stepladder to take a closer look. Thanks Maurice

Worst-case, detection-wise, is the scenario in which the hinge(s), at one time in the past, *had* been stuck, but either got unstuck by itself, or got serviced/lubricated (mandatory WD40 point....;)), yet the frame still being left deformed somehow.
(as in: cause solved, effect/damage/distortion not)

Note that *some* (vehicle-)samples probably *never* had their windscreen(s) opened at all, in all of their 40-50 years<*>.
(I suspect this being the case in more than one of the C306 firetrucks I witnessed....cracking open, sticky as if they left the factory that way, 50 years ago)

<*> not even the minor/slit-wise opening-setting (clamps released, buckle/clasp thrown forward, glass resting on the buckle (this is *not* recommended in heavy offroad (or ignoring speedbumps....:)), as the glass can (and will) jump open, then slam back shut (possibly at the then still extended buckle/clasp)), possibly/likely breaking the glass.

(Murphy has been good to me thusfar; each time the buckles/clasps also jumped back over inwards, hence the glass slamming shut as it should, solely onto the rubbers....:))
(this includes a sudden airborne manoeuvre in the Gobi, which otherwise completely emptied the dashboard-compartment, co-pilot side....8-))
(possibly the only Volvo firetruck ever to become airborne....8-))

Zitat von: solarstone am 8.Juni 2022 16:57:24

For me seal on screen - mounted with sealing fluid and only a rubber-protection on the body made the best result.

This was my initial thought too, to put some sealant on the metal frame, but I wasn't sure if it would just "move" the leak from the hinge to the corner... Do you have a photo?

Zitat von: WJM am 8.Juni 2022 20:25:26

Note that *some* (vehicle-)samples probably *never* had their windscreen(s) opened at all, in all of their 40-50 years<*>. <*> not even the minor/slit-wise opening-setting (clamps released, buckle/clasp thrown forward, glass resting on the buckle (this is *not* recommended in heavy offroad (or ignoring speedbumps....:)), as the glass can (and will) jump open, then slam back shut (possibly at the then still extended buckle/clasp)), possibly/likely breaking the glass.

Mine had pine needles stuck under the hinges but I'm not sure if that means it was previously opened or it wasn't

I have to say I was quite disappointed to find that (a) the windscreen has only two positions - fully open or fully closed, (b) when the windscreen is fully opened the edge of the windscreen is exactly in my line of sight so I'm either looking down 3m in front of the van or straining in my seat to see over the top edge of the screen and (c) it leaks when it rains. So it's worse than useless

So at the very least I have to stop it leaking. To change the open position all I can think of is to make some custom stays which are, say, 2cm shorter than the originals. I certainly don't want to sit any higher inside the cab...

Thanks
Maurice

Zitat von: Mo am 9.Juni 2022 17:49:27

Zitat von: WJM am 8.Juni 2022 20:25:26 Note that *some* (vehicle-)samples probably *never* had their windscreen(s) opened at all, in all of their 40-50 years<*>. <*> not even the minor/slit-wise opening-setting (clamps released, buckle/clasp thrown forward, glass resting on the buckle (this is *not* recommended in heavy offroad (or ignoring speedbumps....:)), as the glass can (and will) jump open, then slam back shut (possibly at the then still extended buckle/clasp)), possibly/likely breaking the glass. Mine had pine needles stuck under the hinges but I'm not sure if that means it was previously opened or it wasn't I have to say I was quite disappointed to find that (a) the windscreen has only two positions - fully open or fully closed, (b) when the windscreen is fully opened the edge of the windscreen is exactly in my line of sight so I'm either looking down 3m in front of the van or straining in my seat to see over the top edge of the screen and (c) it leaks when it rains. So it's worse than useless So at the very least I have to stop it leaking. To change the open position all I can think of is to make some custom stays which are, say, 2cm shorter than the originals. I certainly don't want to sit any higher inside the cab... Thanks Maurice

Hmm...even at 190cm, my line of sight as been fine, good view/margin below the frame.
(while I don't think my modified seat-rails (1 extra hole drilled, 2.5cm further backwards, after hammering down the rear limiter) would make much, if any, difference)

Mind you: the Malaysian (tropical?) configuration (see parts catalog) shows a very different set of supports; a toothed swivel/hinge, allowing gradual opening.
Similar to the ones used on the Dodge W52 War Wagon.

Zitat von: WJM am 9.Juni 2022 21:49:37

Hmm...even at 190cm, my line of sight as been fine, good view/margin below the frame. (while I don't think my modified seat-rails (1 extra hole drilled, 2.5cm further backwards, after hammering down the rear limiter) would make much, if any, difference) Mind you: the Malaysian (tropical?) configuration (see parts catalog) shows a very different set of supports; a toothed swivel/hinge, allowing gradual opening. Similar to the ones used on the Dodge W52 War Wagon.

Now I'm curious. I'm 10cm shorter than you and I don't have an abnormally long body and short legs I assume you're using the original seats?

I was surprised when I first discovered this as 180cm is the regular height for a 1970's soldier and I assumed the vehicle would have been designed with that in mind. I mean years ago I had a Land Rover lightweight, it didn't even have moveable seats

I think I need another test drive and perhaps to make some measurements for comparison.

Maurice

Zitat von: Mo am 10.Juni 2022 10:51:29

Zitat von: WJM am 9.Juni 2022 21:49:37 Hmm...even at 190cm, my line of sight as been fine, good view/margin below the frame. (while I don't think my modified seat-rails (1 extra hole drilled, 2.5cm further backwards, after hammering down the rear limiter) would make much, if any, difference) Mind you: the Malaysian (tropical?) configuration (see parts catalog) shows a very different set of supports; a toothed swivel/hinge, allowing gradual opening. Similar to the ones used on the Dodge W52 War Wagon. Now I'm curious. I'm 10cm shorter than you and I don't have an abnormally long body and short legs I assume you're using the original seats? I was surprised when I first discovered this as 180cm is the regular height for a 1970's soldier and I assumed the vehicle would have been designed with that in mind. I mean years ago I had a Land Rover lightweight, it didn't even have moveable seats I think I need another test drive and perhaps to make some measurements for comparison. Maurice

Original seats, yes.
(civil, but only different by colour/cover)

Even a worst-case leaning forward (front-spring-sagged) TGB11/4x4 shouldn't be this 'conflicting'.

What's left is measuring the length of your support-rods, just in case....


Extending the rods might not even require welding; cut them in half, put a metal tube over them, and glue/solder in place.

(they just won't fit the rod-holders above the sunvisor anymore then....;))


<ADDENDUM>

You might also want to measure the location of the frame-side eyes.
(as in: *theoretically*, both rods & eye-location *could* be different on yours)

(*very* theoretically even a difference between civil/tropical & military, but after my 2 decades of (reading) observations & discussions, it can't be us to only now notice something crucial (& easy adaptable) like this))


<ADDENDUM#2>

*If* at all (factory geometric differences), then it should/must also show in the parts catalog, and AFAIK, it doesn't.

Okay, I did another test to confirm the problem and took some measurements.

My eyeline when in the drivers seat: 2.0m from the ground. Exactly level with the top of the door seal.
Bottom edge of the windscreen when opened: 1.92m.
Seat height (no driver) 1.23m
Top of front bumper (no driver) 0.91m
Top of rear bumper (no driver) 0.89m
Distance from the bottom of the screen to the centre of the lower and upper frame eyes (with screen closed): 0.13m and 0.25m respectively

Maurice