Corvair DiagramCorvair Photo
Corvair Center
home forum corvairs calendar links Corvair Podcast
California Corvairs
Clarks Corvair
Clarks Corvair
“CORSA"



Chevy Corvair License Plate
Chevy Corvair Chrome Wheel
Corvair Center Forum :  Corvair Center Phorum The fastest message board... ever.
Corvair Center 
Current Page: 2 of 3
Re: FC Cooling System Musings
Posted by: Lane66m ()
Date: November 16, 2017 09:07AM

My GB has those and have been repainted satin black.

Al Lane
Ellabell GA

1966 Monza Coupe, 110 hp, 4 Spd
1968 Camaro SS Coupe 350 CI 295+ HP PG
1964 Greenbrier Deluxe, 6 dr, 80 hp car engine, PG
2015 Chevrolet Malibu 2LT
2018 Chevrolet Silverado LTZ Z71 Centennial Edition
1947 Farmall A tractor 15 hp


Options: ReplyQuote
Re: FC Cooling System Musings
Posted by: corventure Dave ()
Date: November 16, 2017 09:10AM

It seems the hardest part to find with these is not the plates themselves, but the retainer clips. I see the clips missing on many at swap meets.eye popping smiley

Corventure Dave

Options: ReplyQuote
Re: FC Cooling System Musings
Posted by: Pedigo ()
Date: November 16, 2017 09:23AM

Always wondered what those plates were for. My early '61 doesn't appear as though it ever had them.

Options: ReplyQuote
Re: FC Cooling System Musings
Posted by: SteveInMarietta ()
Date: November 16, 2017 09:25AM

Pedigo raises a very interesting question; did all or only some FCs include the plates. If only some, which?
Steve

Options: ReplyQuote
Re: FC Cooling System Musings
Posted by: monza66mo ()
Date: November 16, 2017 10:46AM

ac1948 Wrote:
-------------------------------------------------------
> Here you go Matt.


What are these? Where do they go? What do they do? The block off plates I am talking about are on the top shroud and the fire wall. They were fab'ed up and not stock like these triangle plates look.

- Art in Missouri
'61 Loadside

Options: ReplyQuote
Re: FC Cooling System Musings
Posted by: American Mel ()
Date: November 16, 2017 10:51AM

I would suggest that Art submit some pictures of these block-offs on his FC.
AND that someone else posts pictures of the factory "diverter plates" installed.
I have no FC myself, but find this an interesting thread and would like to understand just where these things go.

.
-----------------------------------------------
WA. state, 1 mile south of the Canadian border,
I am not at the end of the world, but you can see it from here.
'66 Monza Coupe - 4spd, 140 Daily driver beater
'67 Monza Vert. - PG, 140 Daily driver beater

Options: ReplyQuote
Re: FC Cooling System Musings
Posted by: redone76 ()
Date: November 16, 2017 10:57AM

I have an FC and don't have any block off plates nor these factory diverter plates. Curious how all this works too. I haven't had any cooling problems either

Options: ReplyQuote
Re: FC Cooling System Musings
Posted by: MattNall ()
Date: November 16, 2017 11:00AM

They are the same thing.... just cover the body openings near the carbs...

Lots of pics here..





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

Options: ReplyQuote
Re: FC Cooling System Musings
Posted by: monza66mo ()
Date: November 16, 2017 11:00AM

Mel,
I'll take some pics and hang them this evening but what I'm talking about is where the hose was, the connection to the top shroud and the connection on the firewall are blocked off with sheet metal. Not much to look at but like I said, I'll post a pic later.

- Art in Missouri
'61 Loadside

Options: ReplyQuote
Re: FC Cooling System Musings
Posted by: MattNall ()
Date: November 16, 2017 11:03AM

Art... that's the Heater's " Cool air Intake"...nothing to do with the engine..... unless hose is broken or left off... then #5 runs hotter.





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

Options: ReplyQuote
Re: FC Cooling System Musings
Posted by: SteveInMarietta ()
Date: November 16, 2017 12:03PM

Here's one of the Firebrier's block-off plates; another was on the other side.
Steve

Attachments:
Options: ReplyQuote
Re: FC Cooling System Musings
Posted by: redone76 ()
Date: November 16, 2017 12:16PM

SteveInMarietta Wrote:
-------------------------------------------------------
> Here's one of the Firebrier's block-off plates;
> another was on the other side.
> Steve


Now that I see your picture my Greenbrier has those installed. Since I live in southern California can I pull them off to get more air flow?

Options: ReplyQuote
Re: FC Cooling System Musings
Posted by: MattNall ()
Date: November 16, 2017 12:29PM

sure...won't hurt for sure!!





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

Options: ReplyQuote
Re: FC Cooling System Musings
Posted by: redone76 ()
Date: November 16, 2017 12:31PM

MattNall Wrote:
-------------------------------------------------------
> sure...won't hurt for sure!!


cool! smileys with beer

Options: ReplyQuote
Re: FC Cooling System Musings
Posted by: monza66mo ()
Date: November 16, 2017 12:45PM

MattNall Wrote:
-------------------------------------------------------
> Art... that's the Heater's " Cool air
> Intake"...nothing to do with the engine.....
> unless hose is broken or left off... then #5
> runs hotter.

Yeah... that's what I've been asking about. The practice of blocking this off to keep #5 cyl from running too hot. I'm led to believe that dropped valve seats are often blamed on the heater intake wasting cooling.

Sorry if I didn't articulate it better.

- Art in Missouri
'61 Loadside

Options: ReplyQuote
Re: FC Cooling System Musings
Posted by: MattNall ()
Date: November 16, 2017 01:06PM

> The
> practice of blocking this off to keep #5 cyl from
> running too hot. I'm led to believe that dropped
> valve seats are often blamed on the heater intake
> wasting cooling.
============================================================


Only when the connection is broken.

When you use the heater...in coldweather... you don't need the cooling level for #5

The "Heater Cool Air intake" is only used when the Temp lever is less than FULL HOT..





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

Options: ReplyQuote
Re: FC Cooling System Musings
Posted by: SteveInMarietta ()
Date: November 16, 2017 02:00PM

I would still like to know if these were standard for all FCs? Does anyone know the part number or the formal GM name for the plates (with which I could research them in the P & A catalogs)?
Steve

Options: ReplyQuote
Re: FC Cooling System Musings
Posted by: American Mel ()
Date: November 16, 2017 03:16PM

Okay.
It is all clear now.
Thanks guys!

.
-----------------------------------------------
WA. state, 1 mile south of the Canadian border,
I am not at the end of the world, but you can see it from here.
'66 Monza Coupe - 4spd, 140 Daily driver beater
'67 Monza Vert. - PG, 140 Daily driver beater

Options: ReplyQuote
Re: FC Cooling System Musings
Posted by: WhenIm64 ()
Date: November 16, 2017 04:17PM

SteveInMarietta Wrote:

> I would still like to know if these were standard for all FCs? <

Steve, they were not standard in all FCs, at least, not at first. These were introduced midway through the 1961 model year to combat carburetor icing which had become a customer complaint. From that point forward they were standard in all FCs.

You will find a similar "fix" for wagons, in that there was a running change to the configuration of the engine compartment air inlets in wagons, to achieve the same effect.

--Bob

WhyImWhenIm64

Options: ReplyQuote
Re: FC Cooling System Musings
Posted by: Timothy Shortle ()
Date: November 16, 2017 04:32PM

This was covered in an early Chevrolet Service News bulletin. They were added to ALL FCs in early 61 (but not all 61s came with them). It has nothing to do with the cooling system but rather to fix carburetor icing. Art in Missouri is under the impression this is for cooling of cylinder #5. He has this confused with the fresh air hose/adapter leaking or missing on the right front of the engine top shroud. Also, like Eric P. my FCs do not have a cooling system issue and I have driven my Corvan with factory camper and my 63 Rampside PG across the country quite a few times.

Options: ReplyQuote
Current Page: 2 of 3


Sorry, only registered users may post in this forum.
This forum powered by Phorum.