[Saloon-lovers] another mystery button in my MkVII

hi again,

there’s actually another mystery (metal) pushbutton on the dash,
between the ammeter and fuel guage, in a symmetrical position from the
(black bakelite) starter button…

http://tinyurl.com/neaxqq
(that’s not even my car, it’s a picture from a collection of interior
shots I have, and it’s in many many of them, although in several there
isn’t one)

it’s also shown in the drawings of the owner’s manual (one of the two
drawings actually, the first one doesn’t have it) but there’s no
explanation anywhere… and since I did remove the central wood, I know
mine is not even connected…

I’ve seen it in a lot of photos of other MkVII’s, does anyone know
why it’s there??

ciao & thanks again

diego

Torna a grande richiesta l’offerta estiva di Tiscali Photo !! Non rinuniciare ai tuoi ricordi. Stampa le tue foto a soli 0,09 eurohttp://photo.tiscali.it

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That button is for operating the windscreen washers. Apparently your Jag
is so equipped.
Alan
51MKVII
diego.montefusco@tiscali.it wrote:

hi again,

there’s actually another mystery (metal) pushbutton on the dash,
between the ammeter and fuel guage, in a symmetrical position from the
(black bakelite) starter button…

http://tinyurl.com/neaxqq
(that’s not even my car, it’s a picture from a collection of interior
shots I have, and it’s in many many of them, although in several there
isn’t one)

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I believe that’s your windscreen washer.

Dick Hile------Original Message------
From: diego.montefusco@tiscali.it
Sender: owner-saloons@jag-lovers.org
To: SaloonJag
ReplyTo: saloons@jag-lovers.org
Subject: [Saloon-lovers] another mystery button in my MkVII
Sent: Aug 16, 2009 2:57 PM

hi again,

there’s actually another mystery (metal) pushbutton on the dash,
between the ammeter and fuel guage, in a symmetrical position from the
(black bakelite) starter button…

http://tinyurl.com/neaxqq
(that’s not even my car, it’s a picture from a collection of interior
shots I have, and it’s in many many of them, although in several there
isn’t one)

it’s also shown in the drawings of the owner’s manual (one of the two
drawings actually, the first one doesn’t have it) but there’s no
explanation anywhere… and since I did remove the central wood, I know
mine is not even connected…

I’ve seen it in a lot of photos of other MkVII’s, does anyone know
why it’s there??

ciao & thanks again

diego

Torna a grande richiesta l’offerta estiva di Tiscali Photo !! Non rinuniciare ai tuoi ricordi. Stampa le tue foto a soli 0,09 eurohttp://photo.tiscali.it

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Sent from my Verizon Wireless BlackBerry

In reply to a message from dhile@enterprise-lakepowell.com sent Sun 16 Aug 2009:

My car is equipped with windscreen washers and it has the
button. The windscreen is cleaned and wrapped up; stored in
the loft. The new windscreen rubber is in a box on a shelf.
The washer bottle is on top of the parts storage bin. And I
have been using the battery from my '64 Riviera when I want
to run the car. No test today.
Bernie–
The original message included these comments:

I believe that’s your windscreen washer.


Bernie Daily
Brockport/New York, United States
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Bernie,

Just remember to put the windscreen in before you test the washers… :sunglasses:

Dick Hile

74 E Type OTS
59 Mk IX
Page/Lake Powell, AZ

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That button is for operating the windscreen washers.
Apparently your Jag is so equipped.

ah, okay… thanks a lot! I wonder why the manual doesn’t mention it…

cheers!

diego

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My parts book doesn’t include anything more than part nos. for the bits.
No drawings. Its like an afterthought.
Alan
51MKVII

Diego Montefusco wrote:

That button is for operating the windscreen washers.
Apparently your Jag is so equipped.

ah, okay… thanks a lot! I wonder why the manual doesn’t mention it…

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Diego Montefusco wrote:

That button is for operating the windscreen washers.
Apparently your Jag is so equipped.

ah, okay… thanks a lot! I wonder why the manual doesn’t
mention it…

also, how is the windscreen washer operated on the MkVII which do NOT
have that button? I’ve seen quite a number of pics of dashes without
it…

anyone here with an older MkVII who can tell me? I’m just curious

thanks and ciao!

diego

Torna a grande richiesta l’offerta estiva di Tiscali Photo !! Non rinuniciare ai tuoi ricordi. Stampa le tue foto a soli 0,09 eurohttp://photo.tiscali.it

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also, how is the windscreen washer operated on the MkVII which do NOT
have that button? I’ve seen quite a number of pics of dashes without
it…<

Maybe it was an option and some cars didn’t have washers? Just a guess.

Dick Hile

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In reply to a message from Dick Hile sent Mon 17 Aug 2009:

Diego,

I have a MK-VIII (MK-8) Operating Handbook and it shows that second
mystery switch as being a ‘‘Fuel Changeover Switch’’. Yes, it’s not a
MK-7 but the dash looks identical to yours with the switches and
gauges in the same places.

The Operating Instructions for the switch say to ‘‘rotate switch
clockwise for Right Tank, anti-clockwise for Right Tank’’.

Zurdo–
The original message included these comments:

Maybe it was an option and some cars didn’t have washers? Just a guess.
Dick Hile


1965 3.8 ‘S’ 1984 XJ-6
Florida, United States
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hi zurdo,

I have a MK-VIII (MK-8) Operating Handbook and it shows that
second mystery switch as being a ‘‘Fuel Changeover Switch’’.
Yes, it’s not a
MK-7 but the dash looks identical to yours with the switches
and gauges in the same places.

indeed they are.

but the switch I was talking about is a small metal push-button ABOVE the
bigger, “turnable”, bakelite fuel change-over switch! :slight_smile:

ciao

diego

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In reply to a message from diego.montefusco@tiscali.it sent Mon 17 Aug 2009:

In the older cars, the chrome windscreen washer button was
located under the wooden ‘‘projection’’ in the middle of the
dashboard, almost invisible. You had to press it upwards
when you wanted to clean the windscreen.

Anders–
Anders -92
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My 1953 MKVII has the button I believe you were asking about, and indeed it
is a Windshield washer “button”. Pushing it
creates a small amt of air pressure that that activates the washer system.
If you look at back side of the “button” it should have a
hose attached that goes to the washer bottle. It may have been an option and
not all cars were equiped with it.
Gene Johnston
'53 MKVII
'86 SIII
'94 XJ40
'04 S typeSubject: RE: [Saloon-lovers] another mystery button in my MkVII

Diego Montefusco wrote:

That button is for operating the windscreen washers.
Apparently your Jag is so equipped.

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In reply to a message from diego.montefusco@tiscali.it sent Mon 17 Aug 2009:

My VERY early MK VII did not have washers when built.

I went to the trouble of fitting some of the correctish Trico
sort, and in 16 years have never needed to use them.–
The original message included these comments:

also, how is the windscreen washer operated on the MkVII which do NOT
have that button? I’ve seen quite a number of pics of dashes without
it…
anyone here with an older MkVII who can tell me? I’m just curious


Ed Nantes SS
Melbourne, Australia
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In support of the suggestion that the washer system was an option:
My MKVII is also an early product “Manufactured 14th September 1951”
Chassis #731229. As far as I know the dash is original and has a empty
hole where that windscreen washer button should be. There are no spray
nozzles installed on the cowl. I have not gone through the effort of
installing the system since it was originally without.
Alan Schultz
51MKVII

Ed Nantes wrote:

In reply to a message from diego.montefusco@tiscali.it sent Mon 17 Aug 2009:

My VERY early MK VII did not have washers when built.

I went to the trouble of fitting some of the correctish Trico
sort, and in 16 years have never needed to use them.

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In reply to a message from Diego Montefusco sent Mon 17 Aug 2009:

It may be used to display crankcase oil level on the fuel gauge. I
had a Mark VII back in the 1960’s that had this feature, I believe,
using a crankcase-mounted sending unit.–
The original message included these comments:

hi zurdo,


hyajag
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Is it now known if the washer was an optional extra or if it was introduced, and fitted as standard, during production.
Regards, Graham.

According to the Spare Parts Catalogue, Mark VII cars had windshield washers beginning with chassis numbers 714467 and 734708.
So cars from 710001 to 714466 and 730001 to 734707 did not have them, in other words the first 9173 cars.
This was announced in Service Bulletin 115 dated December 1952.
It seems to be standard equipment, not an option. It mentions a chrome plated control button.
XK120 also received washers at this time.
BTW there is a discrepancy between the SB and the SPC on the beginning RHD chassis number, the SB giving it as 713467 (plus 346-349).

Were these electric windshield washers with the dash button? I recall an Opel Kadett I had many years ago that had a squeeze bulb on the floor one would press with their foot to activate the washers. Quite ingenious.

Gerard

No, the windscreen washers used vacuum to operate the pump and spray fluid. When you pushed the button the dash it applied vacuum to the fluid pump. They were electrically operated.

Paul