Early cooling shrouds and heater boxes..

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Stephen Masefield
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Early cooling shrouds and heater boxes..

#1 Post by Stephen Masefield »

Posting for a friend *(really!)
He is getting his original engine parts back together for his '55/56 speedster, the fan shroud in the picture was on the stored engine but in his parts pile is a shroud with no heater/sensor/bellow mounting - and he has heater boxes without the carb heater fittings... is it right to assume his early original engine shouldn't have the carb. heating tubes/bellows etc ? (Ie the Fan shroud in raw metal/no paint ?)
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Cal Ensor
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Re: Early cooling shrouds and heater boxes..

#2 Post by Cal Ensor »

Body and engine serial numbers please
Cal Ensor Littleton,Co. Pre A Speedster 80613

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Stephen Masefield
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Re: Early cooling shrouds and heater boxes..

#3 Post by Stephen Masefield »

body 80944 engine
engine P 60015

and whilst in the topic...
car is a model year 1956 built in October 1955. Probably does not make a difference. Speedsters were the low end and did not have a lot of the "extras" the more expensive cars had.
I am curious which early cars had the carb pre heat v no preheat. All models except the Speedster?
Steve
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Tom Tate
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Re: Early cooling shrouds and heater boxes..

#4 Post by Tom Tate »

I think that the carb heater feature were installed on all cars in early '56. I know that '57 & '58 Speedsters had them as standard equipment.

Curt Crowell
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Re: Early cooling shrouds and heater boxes..

#5 Post by Curt Crowell »

Stephen-Here's a shot of the rear of a '53 engine with the wrong breather; the original rusted out. Curt
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James Davies
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Re: Early cooling shrouds and heater boxes..

#6 Post by James Davies »

That's a tough one. The earliest 1600 engines had a lot of carryover parts from the 1955 1500 engines, including the distributor, etc. When exactly the thermostat and carb heaters were added to the production line might be a little fuzzy. When the two features were added is probably independent.

As for your shrouds, the silver one on the left was used from mid-1954 through the end of 1500 production at least. The one on the right with the bracket for the thermostat started being used at the end of 1955 with the introduction of the 1600. But not all the first 1600 motors had carb heaters based on a factory photo in the Speedster Typ 540 book.

Don Zingg might know.

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Al Zim
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Re: Early cooling shrouds and heater boxes..

#7 Post by Al Zim »

Looking in the 356A parts book and the pre-A shop manual, my conclusion is that on 2 piece case engines there was no heaters for the carburetors. On three piece case engines there was. I have no pictures of 1955 engines (3 piece case) to verify what happened during that model year since the model change in 1956 ushered in major design changes, al zim
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Jan Kolm
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Re: Early cooling shrouds and heater boxes..

#8 Post by Jan Kolm »

The earliest 356A engines with carb pre-heaters used VW Type 2 rear tin with the crank hole cover tack-welded shut--perhaps this extends back into 1955.
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Martin Benade
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Re: Early cooling shrouds and heater boxes..

#9 Post by Martin Benade »

I have seen the hole cover welded shut, but the tin is a Porsche part- the VW one does not fit over the exhaust pipes/ports, and has no place for the rubber seal.
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Vic Skirmants
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Re: Early cooling shrouds and heater boxes..

#10 Post by Vic Skirmants »

The center part is the VW piece. Porsche added what was necessary to fit in a 356. I think I have seen that cover as late as the early B's?

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