I have a period "Mitchell foreign interchange service" manual which
covers TR 2 through 3B, TR4, 4A 250,6 SPITFIRE GT-6 STAG AND 2000.
As regards the "lid assembly" it says the following.
TRT4 & TR4A 1177A TR250 1177B ( These are interchange ID numbers)
Moving to the cross reference section: " 1177.... A & B interchange by
switching hinges. Difference also is in emblem location.
A 850442 Triumph TR4 & TR4A NA
B 813650 Triumph TR250 $87.50
That being said it lists the hinges for 4, 4A and 250 as part # 604917-B
It makes no reference to trim, letters or emblems.
As regard the short /long hood bulge the following clue is provided.
HOOD ASSEMBLY
TR4 Before chassis# CT6430 1150A
After chassis # CT6430 1150B
TR250 1150C
Interchange data" A B & C interchange less hinges and hardware.
A: Part # replaced by C w/o safety catch provision
TRIUMPH TR4 before Chassis # CT6430
B: 904130 w/ safety catch provision Triumph TR4A NA
C: 908031 w/ safety catch provision Triumph TR4 from chassis #
CT6430
Triumph TR250
This ) 1975
From this I would hazard a guess that CT6430 was the changeover to the
long bulge and also the point at which the safety catch on the hood
release was added.
Does this correspond to other sources?
Cheers all
don
On Sunday, December 18, 2005, at 04:56 AM, Triumphs@Autox.team.net
daily digest wrote:
> Date: Fri, 16 Dec 2005 23:44:14 -0800
> From: "Randall" <tr3driver@comcast.net>
> Subject: RE: A question for the historians
>
>> I've no idea if this would apply to TR4, but my late TR3A had no
>> holes for
>> the TRIUMPH letters across the nose. This was verified when the car
>> was
>> taken to bare metal for painting, no filler or weld marks where the
>> letters
>> belong.
>>
>> Apparently, replacement front aprons were supplied without the holes,
>
> I believe I have evidence that this same theory IS applicable to the
> TR4 boot.
> At least assuming that the TR4A boot lid is the same. My TR4A SPC
> shows the lid
> as Stanpart 850442, while my TR250 SPC shows it as 813650 (yeah the
> number went
> down). I also have a factory supercession catalog that lists 813650
> as the
> replacement for a 850442. Since the TR250 has completely different
> badges (with
> different holes), the boot lid must have been supplied undrilled.
>
> Which of course proves nothing about David's car, but does tend to
> lend credence
> to the panel replacement theory.
>
> Rand
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