[concours] Heat shield on XJ Series II

Hi fellow Concours’ers,

Whilst hosting the Norwegian Jaguar Club’s annual Summer rally last weekend, I also as member of the Concours commitee judged the XJ Serie I-II class in the Concours d’Elegance. One entrant claimed that the full length heat shield over his cars exhaust manifolds was correctly chromed; that the latest Series II XJs were furnished with a chrome heat shield, which was subsequently carried over to Series III.

To my knowledge, the shields were never chromed, and I’ve never seen a Series III with chromed shield.

In Thorley’s “Original XJ” there is a picture where the shield actually appears to be chromed on a Series II, but it’s not described.

Does anyone know about this?

Best regards
Baard Th Hesvik
Jaguar XJ6 4.2 litre Series I 1972 SWB - Dark Blue/Grey

Hi Baard,
To my knowledge, no XJ heat shield was ever chrome plated at the factory. It
is non authentic. IIRC, the Ser I has a stainless heat shield with a
rectangular flange on the top center to accommodate the air duct going over
to the carbies. This can be polished to a like-chrome appearance and may
fool some into thinking it is chrome.

The Ser II and III both have ordinary steel shields.

John Testrake
St. Louis, Missouri USA
84 xj6

In a message dated 6/5/01 9:32:10 AM Central Daylight Time,
bhesvik@telesoft.no writes:

Hi fellow Concours’ers,

Whilst hosting the Norwegian Jaguar Club’s annual Summer rally last
weekend,
I also as member of the Concours commitee judged the XJ Serie I-II class in
the Concours d’Elegance. One entrant claimed that the full length heat
shield
over his cars exhaust manifolds was correctly chromed; that the latest
Series> II XJs were furnished with a chrome heat shield, which was subsequently
carried over to Series III.

To my knowledge, the shields were never chromed, and I’ve never seen a
Series III with chromed shield.

In Thorley’s “Original XJ” there is a picture where the shield actually
appears to be chromed on a Series II, but it’s not described.

Does anyone know about this?

Best regards
Baard Th Hesvik
Jaguar XJ6 4.2 litre Series I 1972 SWB - Dark Blue/Grey

In a message dated 6/5/01 9:55:01 AM Pacific Daylight Time, Jtestrake@aol.com
writes:

<< The Ser II and III both have ordinary steel shields.

John. I am working on (Restoring) my series III Sovereign and would like to
know what finish I should have on this shield. Dr A told me it could be
polished but if it is steel how do I accomplish this task.
Regards Bob.

To my knowledge, the shields were never chromed, and I’ve never seen a
Series III with chromed shield.

I agree…they should not be chromed. There is one SerIII car…of some
fame in my neck of the woods…with a chromed shield. It is the subject of
considerable debate ! The overwhelming opinion is that it is incorrect.

In Thorley’s “Original XJ” there is a picture where the shield actually
appears to be chromed on a Series II, but it’s not described.

Could it have been a “press photo” ? I wouldn’t be surprised if Jaguar
publicity staffers arranged for a few “enhancements” for press cars, show
cars, etc. Just a thought…

Cheers,
Doug----- Original Message -----
From: “Baard Th Hesvik” bhesvik@telesoft.no

I have a Ser 1 XJ6 which has a stainless steel heat shield which polishes up
very nicely.
I also have a Ser III on which Jaguar Cars informed me had a heatshield with
an “aluminumized” finish. A very soft finish that does not standup to any
polishing and an attempt to repaint it with aluminum paint destroys the
original appearance. If you can find an original handle it carefully.!!
Dick Howe, Secy. JCNA

Bob,
The original finish was a sort of Galvanized looking affair (but it was not
really Galvanized). Maybe aluminized is closer as a description. I really
don’t know the exact process but suffice to say that Jaguar had some sort of
treatment for the shield. There are two exhaust heat shields screwed to the
floor pan under the car and above the drive shaft that have the same finish.
You can look at one of them to see what I mean. The shields can be polished
to a near chrome like finish but won’t stay that way very long. The best
results will be if you take it off and polish it on a buffing wheel with some
compound. After you get it looking good, you can keep it up with frequent
use of a good metal polish like Autosol.

John Testrake
St. Louis, Missouri USA
84 xj6
71 Lincoln Mk III (Abe)

In a message dated 6/5/01 12:55:11 PM Central Daylight Time,
Peddlarbob@aol.com writes:

John. I am working on (Restoring) my series III Sovereign and would like
to> know what finish I should have on this shield. Dr A told me it could be
polished but if it is steel how do I accomplish this task.
Regards Bob.

Thanks John.

well I do as I am a judge but you must remember it is the OWNERS
responsibility to PROVE the point using parts manuals or other OFFICIAL
Jaguar references.

The heat shields were made of stainless steel. Stainless steel as I
recall CANNOT be chrome plated as the acid bath used in the process would
destroy the stainless properties!

The shield on my 76 XJ-6 is highly polished, not chrome.

Jagdoc

writes:On Tue, 5 Jun 2001 16:17:01 +0200 Baard Th Hesvik bhesvik@telesoft.no

Hi fellow Concours’ers,

Whilst hosting the Norwegian Jaguar Club’s annual Summer rally last
weekend, I also as member of the Concours commitee judged the XJ
Serie I-II class in the Concours d’Elegance. One entrant claimed
that the full length heat shield over his cars exhaust manifolds was
correctly chromed; that the latest Series II XJs were furnished with
a chrome heat shield, which was subsequently carried over to Series
III.

To my knowledge, the shields were never chromed, and I’ve never seen
a Series III with chromed shield.

In Thorley’s “Original XJ” there is a picture where the shield
actually appears to be chromed on a Series II, but it’s not
described.

Does anyone know about this?

Best regards
Baard Th Hesvik
Jaguar XJ6 4.2 litre Series I 1972 SWB - Dark Blue/Grey


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Baard,

Dick’s answer is correct for the S1 and S3 cars (S1 answer primarily
applies to the US). The S2 cars have a stainless steel heat shield (similar
to the S1 cars). It will indeed polish nicely and could be mistaken for
chrome if not looked at too closely. I don’t recollect if this is also true
for the 1979 fuel-injected S2 cars or if they had the less attractive
aluminized finish of the S3 cars. Chrome is incorrect for all cars. There
were different heat shields used for different markets on S2 cars but all
the carbureted cars with shields had stainless. As additional reference,
you’ll note that all S2 cars in ORIGINAL JAGUAR XK have stainless and that
the Parts Catalog lists various stainless heat shields.

It would be illogical for Jaguar to intersperse undocumented chrome shields
for a few cars in between the stainless era and the aluminized epoch.
-Steve A.
'67 E Type Coupe with no exhaust shield
'76 XJ6C with a stainless steel exhaust shield
'91 XJ40, also with a stainless exhaust shield---------------------

Baard Th Hesvik wrote:

One entrant claimed that the full length heat shield over his cars
exhaust manifolds was correctly chromed

John Testrake wrote:

The Ser II and III both have ordinary steel shields.

Doug Dwyer wrote:

In Thorley’s “Original XJ” there is a picture where the shield actually
appears to be chromed on a Series II, but it’s not described.

Dick Howe wrote:

I have a Ser 1 XJ6 which has a stainless steel heat shield which polishes up
very nicely.
I also have a Ser III on which Jaguar Cars informed me had a heatshield with
an “aluminumized” finish. A very soft finish that does not standup to any
polishing and an attempt to repaint it with aluminum paint destroys the
original appearance. If you can find an original handle it carefully.!!

The S2 cars almost bankrupted Jaguar because their quality was horrendous.
Chrome content was actually higher than on early S1 cars or on S3 cars due
to the chromed steel wheels. I just went out to the garage and was unable
to spot a single item of chrome in the engine compartment that you didn’t
mention. However, there’s precious little chrome in the engine compartment
of modern cars and I didn’t see an awful lot in my S2 engine compartment
that I think would be improved by chroming.

At close to $20K in the late 70’s, one could hardly call a S2 car cheap.
One could state that it didn’t represent the value for money that Jaguar
traditionally stood for. I guess that’s what one gets when socialists try
to build luxury cars for their class enemies.
-Steve A.
'67 E Type Coupe
'76 XJ6C
'91 XJ40--------------------------------

David S Meck dmeck@juno.com

Subject: Re: [concours] Chrome swage line on XJ Series II V12

The Series II cars as I recall, were the ones that bankrupted Jaguar
because they got cheap! They did away with most of the wood on the
interior, except for the dash, they put crome only on the exterior, the
center console (until the US DOT said no because of the glare it
created), and the door handles. Even the gages had silver paint on the
bezels not chrome. I don’t recall EVER seeing chrome any where under the
hood of a Series II and I have been working on Jags since the Series III
cars were introduced. Oh yes there was ONE item under the hood that was
chrome, it was/is the transmission dipstick handle. And of course the
cap screws on the cam covers, headstuds, and cranckcase ventilation
filter cover, were chrome plated. Later in production, even those were
only polished. The V12 engines did not have chrome cap nuts (or dome
nuts as some people call them). Well now you got me wondering about the
nuts on the front of the cam covers on the V12’s…Jagdoc