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EM lower heat duct question
Posted by: toms73novass ()
Date: June 13, 2018 08:00AM

I noticed on the LM that there is no bent up tab to allow heat back into the engine compartment. It has a cover with the summer winter plate.

In the original design was the EM tab suppose to be bent up and down for the season?

-Tom


63' Monza Spyder Convertable (in process) MY Build Thread
65' Monza MY Build Thread
73' NovaSS 454 Big block
86' BMW 325es
98' Dodge 2500 12v Cummins Diesel with 1200 lb torque!
98' VW Jetta TDI, for daughter
01' Audi Allroad Stage 3 twin turbo

NFCC
Grand Island, NY

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Re: EM lower heat duct question
Posted by: irfgt ()
Date: June 13, 2018 08:08AM

It should be open at all times.

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Re: EM lower heat duct question
Posted by: cnicol ()
Date: June 13, 2018 08:56AM

The flap was supposed to be bent up for winter and bent closed for summer.

How long did they expect that to last? I can't put my fingers on the picture but some of the manuals include a photo of the GM mechanic using a hammer handle to push the flap shut for summer use.

Craig N. Coeur d'Alene ID.
66 Black Monza 4dr, 4.2L V8 49k
61 Seamist Jade Rampside 140 PG
60 Monza coupe (sold, sniff sniff)
66 Sprint Corsa convt - First car! Re-purchased 43 years later
2+2 gnatsuM 5691

+17 Tons of parts

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Re: EM lower heat duct question
Posted by: steve c goodman ()
Date: June 13, 2018 10:49AM

Tom the early turbo engines had two removable summer/winter plates. It was a flat plate using three 5/16" self-tapping sheet metal screws to hold in place. There were no bendable plates on early turbo engines.

As Craig says above close the hole for summer and open for winter. If you have a real spyder you should find a small hole in the rear crossmember near the ID plate and that is where the two plates were clamped together and attached through winter/cold season.

best wishes, Steve
Rear Engine Spec. Inc. Golden, Colo.

1962 spyder 3.0L turbo---1965 Crown V8
1967 monza 110/4---1968 monza 110/4
1971 amante gt 110/4
CORSA/RMC/PPCC

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Re: EM lower heat duct question
Posted by: toms73novass ()
Date: June 13, 2018 01:00PM

OK, Steve, then in the stash of parts I have (has been over 12 years since I took the car apart) this is what the EM Spyder ducts should look like....



-Tom


63' Monza Spyder Convertable (in process) MY Build Thread
65' Monza MY Build Thread
73' NovaSS 454 Big block
86' BMW 325es
98' Dodge 2500 12v Cummins Diesel with 1200 lb torque!
98' VW Jetta TDI, for daughter
01' Audi Allroad Stage 3 twin turbo

NFCC
Grand Island, NY

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Re: EM lower heat duct question
Posted by: toms73novass ()
Date: June 13, 2018 01:04PM

Also, would you have a picture of the area to hold the plates you were talking about. I did a lot of body work and not sure if I might have filled the spot you are talking about.

-Tom


63' Monza Spyder Convertable (in process) MY Build Thread
65' Monza MY Build Thread
73' NovaSS 454 Big block
86' BMW 325es
98' Dodge 2500 12v Cummins Diesel with 1200 lb torque!
98' VW Jetta TDI, for daughter
01' Audi Allroad Stage 3 twin turbo

NFCC
Grand Island, NY

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Re: EM lower heat duct question
Posted by: whubbell ()
Date: June 13, 2018 07:09PM

Early models with A/C also had removable summer/winter plates.

Bill Hubbell,
President, Stock Corvair Group

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Re: EM lower heat duct question
Posted by: toms73novass ()
Date: June 13, 2018 07:43PM

Thanks, ahhh the hole, Yup its there, didn't cover it up.

-Tom


63' Monza Spyder Convertable (in process) MY Build Thread
65' Monza MY Build Thread
73' NovaSS 454 Big block
86' BMW 325es
98' Dodge 2500 12v Cummins Diesel with 1200 lb torque!
98' VW Jetta TDI, for daughter
01' Audi Allroad Stage 3 twin turbo

NFCC
Grand Island, NY

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