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Author: Subject: Talk to me about windscreens, wipers and heaters
Guinness

posted on 26/9/20 at 10:29 AM Reply With Quote
Talk to me about windscreens, wipers and heaters

The bike engine has gone, and the MX5 engine is half in.

I've acquired a windscreen, that fits the Indy scuttle. However it's an ex Westfield one, so comes with cast brackets that don't quite fit the Indy scuttle.
Thinking of buying the flat plate brackets instead. Anyway, any hints, or tips on the following would be appreciated.

What angle does the screen go at, or do you just rely on the bottom of the bracket being level?

Has anyone found an alternative to the landrover type wiper motor, tube and wiper boxes? Does the wiper motor fix to the scuttle or the chassis? Any hints on locations for the wiper boxes? Most cars seem to have them equally spaced either side of the centre line but wondering if that means the middle is double wiped, and the driver side is wiped less? Are they going 180 degrees?

Final question for now, is about demisting the screen. Will two vents be OK, or are more better?

Cheers

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Mr Whippy

posted on 26/9/20 at 11:44 AM Reply With Quote
Classic vw beetle wiper motors are a good choice as they are a complete unit, easy to fit and worked with a similar size windscreen. That's what I have to fit to my car, but after the IVA. As for the windscreen, it's location is often based in the hood and or sidescreen shape if you plan to use those. As for the landy wiper system it's noisy, full of play and very crude though quite easy to adapt to different cars, plus the motor can be located in the engine bay. But it's still clunky.
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theconrodkid

posted on 26/9/20 at 12:56 PM Reply With Quote
I had a screen on my first build, it was very windy, misted up in the rain and the wipers were worse than useless, my second and third just had a wind deflector, less windy and any rain gets blown over the top....my 2p worth





who cares who wins
pass the pork pies

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BenB

posted on 26/9/20 at 01:29 PM Reply With Quote
Re demisting I suspect the issue isn't so much one or two vents just getting enough demist power. In my experience it's the bit directly of front of the driver that needs demisting the most . The screen is quite vertical so it does create a negative pressure behind it which can cause really quite significant misting while driving which isn't a great thing.
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Guinness

posted on 26/9/20 at 01:38 PM Reply With Quote
quote:
Originally posted by Mr Whippy
Classic vw beetle wiper motors are a good choice as they are a complete unit, easy to fit and worked with a similar size windscreen. That's what I have to fit to my car, but after the IVA. As for the windscreen, it's location is often based in the hood and or sidescreen shape if you plan to use those. As for the landy wiper system it's noisy, full of play and very crude though quite easy to adapt to different cars, plus the motor can be located in the engine bay. But it's still clunky.


I'd seen a classic beetle system, and thought it might be a suitable alternative. Do you have any photos of it mid installation?

I don't think I'll buy factory weather gear, there's a lad over the back of me who does custom work.

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steve m

posted on 26/9/20 at 02:00 PM Reply With Quote
I dumped the heater in my 7 as it did nothing,
The wiper system was a modified 1970,s Mini unit tubes and wiper gearboxs, with the smallest blades and arms i could buy !
You need to alter the throw in the motor box, its easy!
The system worked enough for mot standards, but in reality the system was poor

Also, as said, the bufforting was awful,

What worked better was Rainex, inside and out, as that dispersed the rain, and stopped misting inside

steve

[Edited on 26/9/20 by steve m]





Thats was probably spelt wrong, or had some grammer, that the "grammer police have to have a moan at




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roadrunner

posted on 26/9/20 at 02:36 PM Reply With Quote
As Conrod says.
I fitted one after it passed IVA.
Didn't keep it long as the buffeting was terrible.

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Dingz

posted on 26/9/20 at 04:36 PM Reply With Quote
Deflectors (elephant ears) either side of the screen reduce the buffeting loads.





Phoned the local ramblers club today, but the bloke who answered just
went on and on.

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SteveWalker

posted on 26/9/20 at 06:13 PM Reply With Quote
Deflectors make a huge difference - I discovered this by experimenting, after a passenger complained that she couldn't breath on the motorway, while I was having no problem. The first experiment was for her to hold her arms in front of her as if holding a steering wheel ... that turned out to be why I could breath fine!
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rusty nuts

posted on 26/9/20 at 07:00 PM Reply With Quote
quote:
Originally posted by SteveWalker
Deflectors make a huge difference - I discovered this by experimenting, after a passenger complained that she couldn't breath on the motorway, while I was having no problem. The first experiment was for her to hold her arms in front of her as if holding a steering wheel ... that turned out to be why I could breath fine!


Thatís interesting, my wife always says she canít breathe in my car when I donít have a problem, I always put it down to me being used to breathing at terminal velocity!

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40inches

posted on 26/9/20 at 08:25 PM Reply With Quote
quote:
Originally posted by Dingz
Deflectors (elephant ears) either side of the screen reduce the buffeting loads.

They do One of the best things that I did.
No buffeting below around 80MPH
Description
Description

After that I fitted a rear screen, very comfy at any speed Description
Description


[Edited on 26-9-20 by 40inches]

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Guinness

posted on 27/9/20 at 10:26 AM Reply With Quote
quote:
Originally posted by 40inches
quote:
Originally posted by Dingz
Deflectors (elephant ears) either side of the screen reduce the buffeting loads.

They do One of the best things that I did.
No buffeting below around 80MPH
Description
Description

After that I fitted a rear screen, very comfy at any speed Description
Description


[Edited on 26-9-20 by 40inches]


Thanks all, Rainex is a good shout, used to use in on my visor.

And I'll definitely be fitting side screens or ears, and possibly a rear screen too.

40inches, where did you get the external rubber trim from? I'm a bit confused by all the different profiles!

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40inches

posted on 27/9/20 at 10:46 AM Reply With Quote
quote:
Originally posted by Guinness
quote:
Originally posted by 40inches
quote:
Originally posted by Dingz
Deflectors (elephant ears) either side of the screen reduce the buffeting loads.

They do One of the best things that I did.
No buffeting below around 80MPH
Description
Description

After that I fitted a rear screen, very comfy at any speed Description
Description


[Edited on 26-9-20 by 40inches]


Thanks all, Rainex is a good shout, used to use in on my visor.

And I'll definitely be fitting side screens or ears, and possibly a rear screen too.

40inches, where did you get the external rubber trim from? I'm a bit confused by all the different profiles!


It is a H trim with the bottom leave cut off, bonded to the bottom and front of the frame.
The black ally screws are to keep the ends in place as it sets
H Trim from Woolies Link
I made some side doors, with these and the deflectors Motorway speeds are not a problem
Description
Description


[Edited on 27-9-20 by 40inches]

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