('73 F100, 360 2bbl, MT)
I bought these two gaskets because I'm getting a leak after rebuilding and reinstalling my carb. I'm thinking it might be because I put the gasket with the hole on, and I need the one without the hole. My spacer has the hole, what are the disadvantages to blocking it off?

Two gaskets:

 

I'll take a guess and say its the EGR hole. If the Intake manifold and carb don't have the same hole, then you just bought a spacer with EGR holes. If your running the stock manifold, then because your truck is older than 78 you don't have EGR setup. I'm not sure if it matters if the gasket has the holes because the EGR is probably not functional. I would say you need the one without the hole. I'm sure someone else will chime in but that's my limited knowledge.

 

Truck is a '73 with stock intake and carb, so I'm guessing no EGR. I bought both gaskets, so I'll just install the one without the hole.

Hoping it's the source of my leak.

-MK

 

Good Luck Carbs are Fun.

 

Sorry, that's incorrect:

D7PZ-9A589-H (replaced D3TZ-9A589-C, D4TZ-9A589-C & G) .. EGR/Carburetor Spacer Plate-Carburetor to Intake Manifold-Cast Iron-Use w/2V Carburetor (Motorcraft CM-3034).

Applications: 1973/76 F100/350 360/390 / The original factory installed spacer plates were aluminum. Heat caused them to melt internally, they also were notorious for carboning up.

So...in 1977, FoMoCo came out with service part replacement cast iron plates for all 4, 6 and V8 engines. The same gaskets used w/the aluminum plates were used w/the cast iron plates.

EGR valves were introduced in 1973. AFAIK, all Passenger Cars, Trucks, Bronco's & Econolines came with one.

 

Well one thing I'm sure of is that the EGR is not present. So I'm guessing that blocking off that hole should have no detriment to the truck, since all the other EGR equipment is long gone.

-MK

 

Huh, Learn something everyday. NumberDummy I wish I had all your knowledge of Ford Trucks.

 

EGR should have been part of the 72 or 73 Emission regulations for everything less than an F-250, IIRC.

Anyone know what the important difference between the F-100 and the F-150 was?

 

1973/79 F100/350, Bronco, Econoline and Passenger Cars.

The only carb to intake manifold spacer plates listed for these vehicles are for EGR valves, so all had one originally.

No such thing as an EGR valve prior to 1973.

 

EGRs for the 49 states other than California came with Legislation that occurred in either 72 or 73 OR in 72 for 73 model year.

After 72 the Feds start mandating 5MPH bumpers for the front of cars. Front and rear in 1974, sterring columns that collapse during crashes, etc.

In 1972, the advertised hp was taken from the rear wheel rather than the flywheel. 72 starts the beginning of thr SMOG motors with lower compression and milder cams, etc.

I just wasnt sure WHEN the EGR made its way into the 49 state cars. I have worked on California Emissions equipped cars that had EGRs earlier than 73.

What was the difference between the F-100 & the F-150?

 

Historically since the 1930's, new vehicle introductions begin in September of the previous year, so production begins in Auguat.

EGR valves introduced in all 50 state 1973 models...PERIOD!

Take a look-see in the 1964/72 Ford Truck, 1965/72 Ford & L/M Passenger Car Parts Catalogs...see how many EGR valves and related parts you can find listed.

Lotsa luck, because there aren't any!

The only way a 1972 or earlier vehicle could have EGR, is if the engine was swapped in from a 1973 or later vehicle.

I was a Ford partsman for 35 years (1962/97), have every FoMoCo parts catalog from 1928 thru 2001, so I know what the hell I'm talking about.

Where were you in 1973? I was the back (shop) parts counterman at Wright Ford in Marina del Rey CA

 

ND, i was talking in general, not specifically about trucks in reference to EGR valves. They were introduced on the 1973 vehicles so you are clearly wrong about when they were made. Here let me help you out with your facts...

Since the MODEL YEAR starts the previous Sept, they would have had to be introduced in....1972! Sorry you dont understand this!!!

As for EGR Valve...
What is an EGR Valve?

"The first EGR valve was installed in cars in 1972."

EGR Valve - EGR System, EGR Valves

"The EGR valve first appeared in automobiles in 1972 to counter this phenomenon."

Possible that the CA cars i worked on were transplants. But for the record. EGR was introduced in calendar year 1972, WHEN I WAS 10 YEARS OLD and obviously a lil bit more aware than you were.

 

You can lead a jackass to water, but you cannot make it drink. Some people just don't get it.

 

No Sir, i was speaking generically in CALENDAR YEARS. My reference to 5MPH bumpers above should have been the clue that i was not talking specifically about just the Ford F-Series. Obviously in your world you are under the delusion that Ford trucks have 5MPH bumpers on them. They do not.

The reason that i was talking in non-specific terms was because of the huge numbers of transplanted motors within the trucks owned here in the site.

Again, the Fed Govt and Specifically the state of California were mandating emissions and other things back then. The change from gross or break horsepower to net horsepower, the evaporative emissions equipment, the pcv (1967 depending on the model and where it was sold), and the egr produced and sold in 1972 on 1973 models. All of those things were mandated and can also give you clues as to what motor you might have, etc.

Our conflict was simple difference in reference to the CALENDAR years or MODEL years. Humbly apologize for not being clearer, but i thought it was really fairly obvious.

 

Whoa 10 MPH bumpers? You gonna share what you been drinking with the rest of us?

Bumper Questions and Answers

<DT>

Quote:

<DT>3) What are the Federal regulations for bumpers?

<DD>49 CFR Part 581, "The bumper standard," prescribes performance requirements for passenger cars in low-speed front and rear collisions. It applies to front and rear bumpers on passenger cars to prevent the damage to the car body and safety related equipment at barrier impact speeds of 2� mph across the full width and 1� mph on the corners.

<DD>This is equivalent to a 5 mph crash into a parked vehicle of the same weight. The standard requires protection in the region 16 to 20 inches above the road surface, and the manufacturer can provide the protection by any means it wants. For example, some vehicles do not have a solid bumper across the vehicle, but meet the standard by strategically placed bumper guards and corner guards.

<DT>4) Are all vehicle classes required to meet the Federal bumper standard?

<DD>No. The Federal bumper standard does not apply to vehicles other than passenger cars (i.e., sport utility vehicles (SUVs), minivans, or pickups trucks). The agency has chosen not to regulate bumper performance or elevation for these vehicle classes because of the potential compromise to the vehicle utility in operating on loading ramps and off road situations.

<DT>5) When did the bumper standard first come into effect and how has it changed over the years?

<DD>On April 9, 1971, the agency issued its first passenger car bumper standard -- Federal Motor Vehicle Safety Standard (FMVSS) 215, "Exterior Protection," which became effective on September 1, 1972. This standard called for passenger cars, beginning with model year (MY) 1973, to withstand 5 mph front and 2 � mph rear impacts against a perpendicular barrier without damage to certain safety-related components such as headlamps and fuel systems.

<DD>In October 1972, Congress enacted the Motor Vehicle Information and Cost Saving Act (MVICS Act) which mandated that the agency issue a bumper standard that yields the maximum feasible reduction of costs to the public, taking into account the cost and benefits of implementation, the standard's effect on insurance costs and legal fees, savings in consumer time and inconvenience, and health and safety considerations.

<DT>

</DT>
That is verbatim from the NHTSA website, those folks that wrote the regulations. So, if there EVER were any 10MPH bumpers they were freebies from the car companies.

OOPS! No 10 MPH Bumpers there either...
ARnews: Re: 5 mph bumpers?

Consumer Bumper Quality Disclosure Bill

Sorry, no 10MPH bumper there either. Maybe you need to go search the web, or the regulations, or maybe GET A LIFE. This site was supposed to be about helping each other out, not shouting each other down. And if you must know, my father worked at/for the Ford Sheffield Casting Plant and built the casting mold sets that made the aluminum egr valve plates, although not all castings were done in Sheffield.

Now, if You or i make a mistake, wouldnt it be better to just humbly correct it rather than be a dick about it? i have been working parts for all brands on and off for 33 years. Cut my teeth in the engine rebuild business actually making them run, not just handing out parts. i have run several of the busiest repair places in the area. Even ran my own shop where i made them run not just threw parts at them. And i worked on them all, not just Fords. i bow at your knowledge base Sir, but neither you nor i hold the monoply on parts nor service info on this forum nor any other forums. You or i being right about a part or topic doesnt mean that the rest of the board are morons. It just means that we have some knowledge base on that one particular area. 33 years in parts just makes me knowledgable, not the parts buddha, nor better than anyone else because of my knowledge or their lack thereof. the same goes for anyone else on the board.

i am done here.