1956 Ford Air Deflector


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By Danny - 15 Years Ago
What is the purpose of the air deflector that mounts on the front apron above the radiator? I have the opportunity to get one for my 1956 Crown Victoria - do I need it?

Thanks,

Danny

By aussiebill - 15 Years Ago
Danny (8/4/2010)
What is the purpose of the air deflector that mounts on the front apron above the radiator? I have the opportunity to get one for my 1956 Crown Victoria - do I need it?

Thanks,

Danny

Dan, my 3 cents worth? Tongue i believe it seals the incoming air from going over the top of radiator and thus more of the air then is directed through the radiator. Many cars i have seen have deleted them, i think because it makes it hard to reach over when working on the engine, weather its missing makes a huge difference in most cases seems to be ok.Wink Regards bill.

yyy

By rgrove - 15 Years Ago
correct on the function.  However, it was only on the '55's and early '56, IIRC.  Was deleted mid-year in 56 because it wasnt necessary.

My 56 was an early production car, and i have the deflector, but never installed it because its jsut another obstruction at tune up time!

By carl - 15 Years Ago
My understanding was that 55 & 56 fords with 4 barrel carbs had the deflector,i took the one off my 56 and havent seen any difference in engine temp.  Carl 
By aussiebill - 15 Years Ago
carl (8/4/2010)
My understanding was that 55 & 56 fords with 4 barrel carbs had the deflector,i took the one off my 56 and havent seen any difference in engine temp.  Carl 

Here in australia, we had customline sedans from 55 to early 59 and the deflector was standard on all of them, they were 272 with 2 bbl carb. regards bill.Tongue

yyy

By PWH42 - 15 Years Ago
I have a couple of 56 Customline with 272s and they both have the deflector.One is an early 56 and the other is a late one.
By rgrove - 15 Years Ago
Guys, let me be clear.  It is IMPOSSIBLE that I am wrong on this... (end sarcasm).

It will be interesting to see if someone chimes in with a definitive answer; I always thought that they ditched it mid 56 on 4bbl cars because it didnt do anything, but maybe someone else knows for certain?  Interesting!

I think either way to the OP it certainly doesnt impact performance in any way.  I think if you are worried about the car being 100% correct, then it matters.  I picked one up cheap a few years ago with the intent of putting it on my car until I read/heard somewhere that they werent used after mid year.  I never put it on because of hassles when doing engine work.

By PWH42 - 15 Years Ago
I'm not trying to be argumentative.I just always like to try to keep info correct when possible.Although I am usually wrong!
By aussiebill - 15 Years Ago
PWH42 (8/5/2010)
I'm not trying to be argumentative.I just always like to try to keep info correct when possible.Although I am usually wrong!

Its not often i,m right but i,m wrong again! TongueBigGrinSmileWink

yyy

By rick55 - 15 Years Ago
As Bill said all our cars in Oz were fitted with them til the end of the models.

I have run my cars for almost 20 years without it fitted cause they really are a pain to work on the engine, though they do protect the radiator when you are leaning over the front. It is rare here in Oz to see a radiator that isn't dented on the header tank thanks to some heavy handed individual placing their mitt on it.

I make sure that airflow is all through the radiator by inserting a plate in the cutout area in front of the radiator and have fixed some flexible material on the two cutout areas of the radiator support panel. This effectively forces all air that hits the grille area to pass through the radiator, the battery vents and the fresh air vents when open. Whilst travelling at 50 mph you have to hang on with the breeze that comes in through the vents so it definitely works. If you would like photos I will try and post some to explain.

Regards
By marvh - 15 Years Ago
GSL #186 (General Service Letter) dated May 2, 1955 to all dealers states

para 1.

Radiator Air Upper Deflector - 4 Barrel Carburetor Units - 1955 cars



As you know, recently we advised that to minimize the possibility of icing in 4 barrel carburetors used on 272 Special and Police interceptor engines, a radiator deflector was going to be incorporated in production. The air deflector, part number B5A-8327-A will be effective in production approximately May 1,1955. Service parts will not be available until approximately June 1, 1955.



Use of the radiator air upper deflector increases the under hood temperatures. This, of course, is desirable in ambient temperatures below approximately 58 deg F to prevent carburetor icing. The increase in under hood temperatures, however, may have a slight detrimental effect on engine performance during the warm summer months in most areas. However, in areas of extremely high summer temperatures, it will be desirable to remove the air deflector to prevent possible detonation and loss of performance.



marv
By junkyardjeff - 15 Years Ago
I have a very late 55 that originally had a 272 4 bbl that had one,I removed it when I had 6 cylinder brackets put on the radiator when installing the 351 to gain some clearance for the longer water pump,its going back on when I put the 292 in.
By marvh - 15 Years Ago
rick55 (8/5/2010)
As Bill said all our cars in Oz were fitted with them til the end of the models.



I make sure that airflow is all through the radiator by inserting a plate in the cutout area in front of the radiator and have fixed some flexible material on the two cutout areas of the radiator support panel. This effectively forces all air that hits the grille area to pass through the radiator, the battery vents and the fresh air vents when open. Whilst travelling at 50 mph you have to hang on with the breeze that comes in through the vents so it definitely works. If you would like photos I will try and post some to explain.

Regards




Rick:

Could you post a pic as that is interesting.

marv
By oldcarmark - 15 Years Ago
That service information that Marvh posted has given me something to try.I have the deflector on mine with nice repro seal so it closes against the hood.I am getting a rough idle when hot.Vacuum gauge is steady so I am thinking the underhood temp is causing fuel to become hot and vapourizing a bit.Going to remove the deflector and see what happens.I was under the impression the deflector was to keep air moving through the rad but it appears it was meant to raise underhood temp to prevent carb icing which wont happen when its 70+ in the summer.Thanks Marvh!
By oldcarmark - 15 Years Ago
Just wanted to update my last post.I took the deflector off this morning.Took it for a ride so it got good and hot.Without the deflector on it idles just about perfectly smooth.Seems to have a little more power on acceleration too.All that hot air trapped under the hood WITH the deflector on was causing my idle problem I think.Thanks for the info Marvh.I think you solved my problem.
By marvh - 15 Years Ago
Your welcome Mark; Do you have the under pan removed as I have found the engines run much cooler if that is removed.



I would like to see the mod Rick has done to his car to force the air through the rad. This could also help as I think he is onto something. Could you post a picture Rick if possible.

thanks

marv
By oldcarmark - 15 Years Ago
Hi Marv! I bought the splash pans and never did install them.I would like to see Rick's mod too.Anything that helps keep engine cooler is of interest to many I think.
By rick55 - 15 Years Ago
I hope this works - these are pictures of the deflectors I use fitted to a Customline fitted with a 351 Cleveland.

This car was always hard to keep cool and these along with a seven blade fan plus a thermo did the job well.

This car would idle all day in any temperature in traffic and never get above 190 degrees with a 180 degree thermostat using a standard cusso radiator header tanks fitted with a four core radiator from a Toyota four wheel drive.



I have sold this car so can't get any clearer photos.

For some reason I haven't done this to my Mainline utility though I have owned it for 17 years.

As you can see, I have a plate (about 16g sheetmetal) bolted underneath the opening in front of the radiator. I have two sections of 1/8" insertion rubber siliconed into place in the two other openings in the support panel. This means that all air hitting the grille opening must pass through the radiator.

Regards
By rick55 - 15 Years Ago
Sorry about that it didn't work so I have uploaded them to Photobucket to view. Here we go again.





I hope this works.

Regards
By oldcarmark - 15 Years Ago
Rick! Pics not opening.Not working second time you tried either.
By ecode ragtop - 15 Years Ago
I wish I had a dollar for every one of these air deflectors that I have thrown away in the last 40 years....
By rick55 - 15 Years Ago


Hopefully this photo is the other view of the engine bay.

Regards
By oldcarmark - 15 Years Ago
Thanks Rick! Now I understand what you were trying to describe.Kind of makes you wonder why the cutouts were there from the factory if being "solid" would have improved cooling.Has anyone else noticed the location of the master cylinder on these "downunder" Fords?Where does the heater go when installed Rick?
By aussiebill - 15 Years Ago
oldcarmark (8/8/2010)
Thanks Rick! Now I understand what you were trying to describe.Kind of makes you wonder why the cutouts were there from the factory if being "solid" would have improved cooling.Has anyone else noticed the location of the master cylinder on these "downunder" Fords?Where does the heater go when installed Rick?

Mark, heaters here were an option due to the generally hot conditions allready, as you may know we had 55,56 57 customlines with the 3 round holes in dash, generally they had a radio in middle and clock to the left and the right side had heater delete, the heater was bolted on LH inner fender and air intake was joined into the flapper valve tube there, then a 3" hole was cut in the firewall about lower dash level and a box with 2 air outlets directed air UP to the screen vents, and a hinged flap directed the air either up there or down to the floor, this was controlled by a push/pull cable and on/off switch for the fan in the fender mounted air box and  they were mounted in the delete position on the dash, very basic! the 58/59 models had different dash layout, same heater system but nice cast dash controls like a 59/60 fairlane galaxie type. The heaters were SMITHS and similar to ones in british MG cars. That my friend is the heater story.Tongue

yyy

By oldcarmark - 15 Years Ago
AussieBill! Thats really interesting.I did not know you had the 55 dash and not the 56 style.55 dash with 12 volts OR 6 volts?I was told the 55-56 body style was used right through midyear 59 when you caught up with the rest of the world and got the oceanliner 59 body style.Is this correct?Interesting to know this info.I did not know the Y-block was used for many years after 64 in South America either until somone posted that info on this site.By the way,the heater was an option in USA also.I have an original bill of sale for a 56 Town Sedan sold in Virginia and the heater as well as the windshield washer system was an additional cost option.
By aussiebill - 15 Years Ago
oldcarmark (8/8/2010)
AussieBill! Thats really interesting.I did not know you had the 55 dash and not the 56 style.55 dash with 12 volts OR 6 volts?I was told the 55-56 body style was used right through midyear 59 when you caught up with the rest of the world and got the oceanliner 59 body style.Is this correct?Interesting to know this info.I did not know the Y-block was used for many years after 64 in South America either until somone posted that info on this site.By the way,the heater was an option in USA also.I have an original bill of sale for a 56 Town Sedan sold in Virginia and the heater as well as the windshield washer system was an additional cost option.

Mark yes, the 55 was 6volt and 56 on was 12 volt same as usa, we didnt have fairlane series car but carried the customline through to mid 59. In 57 ford Australia used up what appears to be the 56 fairlane side trim and even the trunk emblem insert was changed to read customline instead of fairlane, then in 58/59 they used 55 mercury meteor grill theme and side trim and we called them Star models because of the grill star emblem. They had dash similar to the fairlane series dash but with speedo and only 2 guages, the clock and heater option had delete panels, i dont have dash pics handy but maybe lon or rick may have, it is an interesting difference. We had exterior sunvisors, dual mirrors, door handle scratch plates, rear window venetian blind, power brakes, screen washers, number plate backing frames, towbars, as popular options, a lot had clear plastic covering the inner door trims and seats to protect them. Thanks for your interest. regards bill.

By Rono - 15 Years Ago
I kept the air deflector on my '56 Customline HT, had it powdercoated and installed new rubber seals using pop rivetes instead of the original staples. You do have to be careful you don't bend it when leaning over the front of the engine, but it is functional and looks pretty cool.

rono

By rick55 - 15 Years Ago
As Bill mentioned our '58 was basically a '55 Canadian Meteor with a hodge-podge dash. Not as nice as the US '56 but the closest we got here in Oz.



I think I have got this sussed out now.

Regards

Rick
By marvh - 15 Years Ago
Were not the shift lever on the right for automatic cars and on the left of the column for standard trans cars.



Rick:



How did you stamp or bend the tin for the deflector?

marv
By Bob's 55 - 15 Years Ago
rick55 (8/9/2010)
As Bill mentioned our '58 was basically a '55 Canadian Meteor with a hodge-podge dash. Not as nice as the US '56 but the closest we got here in Oz.



I think I have got this sussed out now.

Regards

Rick




Rick, I think you flipped your picture w00tw00t It even says B&M upside down on the shifterHeheHehe Dang that looks strange.
By rick55 - 15 Years Ago
Marv

The metal under the big central area just needs a little lip against the edge with the radiator or put a a strip of door openiing pinchweld to stop it rubbing against the radiator.The two little cutouts on either side I sealed with insertion rubber glued in place with silicone sealer. This stayed in place with no problem for a about 15 years before I sold the car. I even repainted the complete support panel with black chassis paint and the colour adhered fine to the rubber. This car was originally a 272 Y with Fordo and yes the gear shift was on the right (against the door pillar). The column shift was taken out a long time before I bought the car.

Bob

I loved the B&M shifter but of course it was for a LHD car so the shifter never did fit in the hand correctly and the indicator for the gears was on the wrong side as well. Well spotted that I had it upside down, otherwise I would have had to lay on the seat to change gear comfortably with my left hand. The boys in blue would have loved that.

I thought the car underbonnet was a bit scruffy so I have shown you that it looked a lot better outside. I have never been one for bling under the bonnet.



Regards