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Old 2nd December 2007, 18:40   #511
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Default 1952 Pontiac Tempest LeMans revisited

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Also I'm intrigued as to which Pontiac is the yellow one. A GTO?....Nope A Tempest...Nope....A Firebird...No Way!! the closest it looks to, is the Catalina but I really can't tell.
I hate to admit this but when im wrong, im wrong. After much soul (and manual) searching i found out that it is indeed a Pontiac Tempest Four cyl option.

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Karlos, thats for Sure not the original engine that came with the car!!!
I've seen some americans with 4 cyls, but not like this.
seems its a marine engine put in . Everything is possible in delhi.
also the rear suspension seems altered/adapted, very very few americans cars came with such swing arms! Delhi keep it up!
I thought so too scooby but i confirmed, this is an original four cyl engine that came with the tempest and the parts that fit into it are exactly what fit into a V-8.
Re the rear suspension, its original too like the Herald... wierd!! but its all original.
The Car

Yes indeed, it's a Pontiac Tempest -- the 1962 Pontiac Tempest-LeMans convertible.



The Pontiac Tempest bowed in 1961 as a four-door pillared sedan and a Safari station wagon.

1962 brought two convertibles -- the Tempest convertible and the deluxe Tempest-LeMans convertible. From the brushed aluminium trim above the dashboard shelf, the yellow car photographed by iraghava is a 1962 Pontiac Tempest-LeMans convertible.





Original colors were: Black, Parchment(cream), Red, Saddle(orange) and Blue. (no yellow).

Tempest also has an unusual dubious distinction.
It is among the very few cars that degraded from a monocoque configuration (GM "Y" body in 1961) back to a body on chassis (GM "A" body in 1964).

The 1961-63 monocoque had a heavily ribbed flat floorpan.

This very unusual car was designed by John Z. DeLorean, who would one day build his own cars.

The Tempest-LeMans convertible had plush deep-pile carpets and bucket seats upholstered in expanded Morrokide.

The Engine

Pontiac's standard big car engine: the 6,374 cc 389V8 was cut in half.

The right cylinder bank yielded a unique 45° inclined 4-cylinder engine, which was named the "Trophy 4" engine.
So this was a 194.5 cubic inch ( = 3,187 cc ) four cylinder engine.

Tempests got three versions of the engine:
  1. a low compression version breathing through a single-barrel carburetor [115 bhp @ 4000 rpm & 144 Newton-metre @ 2,200 rpm],
  2. a high compression version breathing through a single-barrel carburetor [140 bhp @ 4400 rpm & 153 Newton-metre @ 2,200 rpm] and
  3. a high compression version breathing through a four-barrel carburetor [166 bhp @ 4800 rpm / 159 Newton-metre @ 2,800 rpm]
If one wanted the whole 389V8, that was available too. It was named the "Trophy V8" engine and would come with automatic transmission only.
That had a 4-barrel carb, 10.25:1 compression and put out 185 bhp @ 4800 rpm & 170 Newton-metre @ 2,800 rpm.



An authentic restoration should have used Pontiac blue engine enamel.



The Suspension
Yes indeed, the 1961-63 Pontiac Tempests had four-wheel independent suspension. The rear had independent swing axles. That is evident from the way this just assembled corner sits.





And there's more -- the driveline
Very key among the Tempest's unusual and innovative features was its torque-tube drivetrain.

The curved torque-tube housed a flexible triple-alloy steel propeller shaft! (the legendary rope shaft) directly from the engine to a combination gearbox+differential transaxle in the rear.

The curve accomodated a 4-inch drop (~ 10 cm) that housed a 3/4-inch (2 cm) rope shaft without universal joints on each end. The main purpose was to make the floor lower, thus increasing the car's interior room.

With a front engine plus so much weight on the rear axle, the car had a near 50/50 weight distribution. This yielded better traction, better braking and longer tire life.

We talked about a later Tempest and Buick Skylark here.

Ram
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Old 3rd December 2007, 12:25   #512
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Default Rope-drive propeller shaft

Ishaan: The yellow Pontiac is truly a piece of automotive history.

It has this unique flexible driveshaft, nicknamed "rope-drive".
That is a thin rod made of forged Nickel-Chromium-Molybdenum Alloy Steel (SAE 8660).

The thickness of this "rope" propeller shaft is roughly the diameter of your thumb (about 1.8 cm)
and its length is about 7 feet from front engine to rear gearbox.

The engine spins the rope inside a hollow torque-tube, arched just under three inches at its center,
and transmits power to the rear transaxle like a torsion bar.
Center bearings absorb some of the vibrations inherent in the truncated V8, four-cylinder engines.

To put it mildly, the Pandits must have a challenging job, re-assembling the car together.

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Old 3rd December 2007, 12:48   #513
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Ishaan: The yellow Pontiac is truly a piece of automotive history.

To put it mildly, the Pandits must have a challenging job, re-assembling the car together.
Thanks for the info Ram. I didn't know much of what you just told us. As for the Pandit's, they are fairly proficient at their job, having been in the business for over 50 years now. Also, the father is a well educated & technically well versed individual who knows how to do his research so I wouldn't underestimate him.

Also, the car is now up & running & back with the owner. Will ask him about the Rope on my next visit & if possible, also how he dealt with it.
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Old 3rd December 2007, 17:02   #514
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That was amazing Ram! If only college lessons were so much fun!!!
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Old 4th December 2007, 18:29   #515
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CLASSIC & VINTAGE Car Parts

---

As many may be aware there are basically four category of Classic car parts
1.NOS(New Old Stock) original spares/OEM parts which have never been used but lying dust covered(?) in some shop/warehouse.EXPENSIVE but a CONCOURS restorers delight

2.Reproduction parts: New reproductions of the original parts

3.Refurbished parts: Used parts which have been serviced /restored and made working (includes Genuine items/old repros)

4.Used parts: generally sourced from scrap dealers/workshops,etc-Cheapest ,but risk of not working also exist

I have few NOS/refurbished Classic car parts for sale to genuine enthusiasts restorers
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Old 4th December 2007, 21:16   #516
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Default painting job

Hi All,

I would like to get my plymouth repainted. Can any one suggest a good tin and paint specialist in Mumbai? Will be glad if anyone can help.
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Old 4th December 2007, 21:29   #517
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I have few NOS/refurbished Classic car parts for sale to genuine enthusiasts restorers
Any standard car parts among them?? Also I was told you get repro suspension bushes for standard cars in trivandrum.....?
Do you have any leads on such?
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Old 5th December 2007, 17:30   #518
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herald tail lamp lens available ,
suspension bushes will check
brake parts,clutch disk available
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Old 5th December 2007, 19:35   #519
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herald tail lamp lens available ,
Can I have these please??

Cheers..
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Old 5th December 2007, 22:24   #520
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brake parts,clutch disk available
Can I have these please??

Btw, by clutch disk do you mean the clutch plate??
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Old 14th December 2007, 15:51   #521
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Thank God These Beauties Are In Good Hands.
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Old 29th December 2007, 23:40   #522
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Here's a VW being restored in goa.

The "V" Shape on this van looks shorter then it should be, the owner has probably done lots of bodywork on this.
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Old 30th December 2007, 08:22   #523
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The "V" Shape on this van looks shorter then it should be, the owner has probably done lots of bodywork on this.
it looks ok to me i think, the bumper would fit below in that space.

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Old 30th December 2007, 10:46   #524
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cool atleast one of the many rotting vans is coming alive
is there another one parked besides it?
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Old 30th December 2007, 12:26   #525
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Originally Posted by karlosdeville View Post
it looks ok to me i think, the bumper would fit below in that space.

compared to this one:

it looks shorter

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cool atleast one of the many rotting vans is coming alive
is there another one parked besides it?
No, it's not another vw, but it is a camper, sorry i don't have any pics!
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