What goes on the rear of an ECZ 9425 B manifold

[OldMercs]

This is on a '54 Merc 292

I picked up an ECZ 9425 B intake. What's the purpose of the rear (firewall) hole? The fitting and cut off hose that were attached are the same size as the vacuum feed for my power brakes.

The second picture is the hookup on the manifold presently on the car; a vacuum line to the distributor.

The third picture is the hookup to the vacuum boost for the power brakes ported of the carb.

My guess is that the brake vacuum should feed from the manifold and the distributor vacuum should come from the carb.

I appreciate your help.

[RKS.PA]

OM, if I'm looking at your third picture correctly, that port is on your carb. On mine, I have a brass fitting that accommodates the line that goes to the brake booster and the line that goes to the distributor. That fitting seems to be missing on your hook up, or it was done differently?

[miker98038]

If the carb has a brake booster fitting, you can take it there, or the back of the manifold with a correct fitting. The distributor advance goes to the ported vacuum at the carb.

Some like to run ported vacuum, some like manifold vacuum to the distributor. I like ported with an auto, but sometimes manifold works better for me on a stick shift. That’s another discussion. But if you’ve got a ported vacuum at the base of the carb, likely there’s a second manifold port on the other side of it. I can’t id the carb from the picture.

[KULTULZ]

Originally Posted by OldMercs

This is on a '54 Merc 292

I picked up an ECZ 9425 B intake. What's the purpose of the rear (firewall) hole? The fitting and cut off hose that were attached are the same size as the vacuum feed for my power brakes.

That is the vacuum source for the booster (1957 4V ECZ-9425-B))

The second picture is the hookup on the manifold presently on the car; a vacuum line to the distributor.

The third picture is the hookup to the vacuum boost for the power brakes ported of the carb.

My guess is that the brake vacuum should feed from the manifold and the distributor vacuum should come from the carb.

I appreciate your help.

Something is very wrong here.

Are you sure your engine is not a 256CI MERC 4V?

The INTAKE MANIFOLD I.D. (EBY-9425-F) and the GREEN ENGINE COLOR says 1956 MERC 256CI.

[OldMercs]

KULTULZ, I identified the engine as a C1AE which I believe is a '61 motor. What you see is what I got when I bought the car. I was suspicious of the brake boost hookup as it is two hoses, a small one fitted into a larger one. I'm going to swap things around now I have a better understanding of what goes where.

Speaking of vacuum. does it make a difference if my vacuum wiper motor is run from the manifold or the vacuum side of the fuel pump?

[miker98038]

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Manifold vacuum drops on a hill, and the wipers slow or stop. That’s why the dual action fuel pump. In Kansas, not such a big deal. In Seattle, all hills and rain, it is a big deal. They still slow down, but not as bad. You’ll have to check the hose routing in the manual.

In Seattle, I put in electric wipers years ago.

[KULTULZ]

Originally Posted by OldMercs

KULTULZ, I identified the engine as a C1AE which I believe is a '61 motor. What you see is what I got when I bought the car. I was suspicious of the brake boost hookup as it is two hoses, a small one fitted into a larger one. I'm going to swap things around now I have a better understanding of what goes where.

Speaking of vacuum. does it make a difference if my vacuum wiper motor is run from the manifold or the vacuum side of the fuel pump?

So what you are saying is you know the short block assy is 1961. What heads are on the engine? Was the manifold shown in the photo on the engine or was thrown in trunk?

The present vacuum source, both booster and ignition advance, is incorrect.

The vacuum source for the wipers is manifold vacuum routed through the vacuum stage of the fuel pump to the wiper motor. When manifold vacuum drops, the two stage vacuum pump cuts in supplying the needed vacuum.

[OldMercs]

Thanks, that's kinda what I thought. I'll check wiper hose routing tomorrow.

[OldMercs]

KULTULZ I'm not sure what heads are on it. Current intake manifold is C0AE 9425 F. The manifold on the bench is a ECZ 9425 B which I intend to put on as soon as I determine carb and distributor requirements.

I thought the vacuum routings were messed up when I bought the car. Now it's in for the winter I can sort things out with the help of you all on this forum

[miker98038]

If you haven’t ent found it yet, here’s the link to John Mummert’s site. Near the bottom is the “Information Center”. Block and head casting numbers, lots of valuable information for figuring out what you’ve got. To find a 239/256 replaced with a 292 is pretty common. Sorting out the heads, intake and exhaust manifolds, carb, distributor, etc. gets to be an adventure. Not uncommon to find not only 2 different heads, but differently port sizes and chamber sizes. But the old yblocks kept on running.

http://www.ford-y-block.com/

[KULTULZ]

Originally Posted by OldMercs

KULTULZ I'm not sure what heads are on it. Current intake manifold is C0AE 9425 F. The manifold on the bench is a ECZ 9425 B which I intend to put on as soon as I determine carb and distributor requirements.

I thought the vacuum routings were messed up when I bought the car. Now it's in for the winter I can sort things out with the help of you all on this forum

OK ...

If the engine came with a C0AE 2V intake, it should be a 292 complete, incl the DIST, which will be a DUAL ADVANCE. The DIST vacuum advance signal should be PORTED and will come off the 4V CARB.

The 54 intake manifold threw me off.

[dmsfrr]

Originally Posted by OldMercs

. . .
I thought the vacuum routings were messed up when I bought the car. Now it's in for the winter I can sort things out with the help of you all on this forum

Example photo # 1 of the vacuum connections at the left rear of an ECZ-B intake manifold.
This one is in a T-Bird but I don't think there are any significant differences.

Photo # 2, vacuum line connections for the '57(+) distributor from the '57(+) carburetor. There are no other connections in this vacuum line.
.

[OldMercs]

Thanks, the photos are very helpful.

[KULTULZ]

You do nice clean work dmsfrr.

OldMercs -

I have some photo(s) of the fittings on the vacuum source (FORD PASS) but no clear photo of the complete setup. It all depended on how the car was ordered with/without a booster and/or a wiper assist pump.

Let me get them gathered yp.

[dmsfrr]

Originally Posted by KULTULZ

You do nice clean work dmsfrr.
. . .

Thank you.

I forgot to include a couple photos of the small brass block that screws into the left rear of the intake manifold, so here they are.
.

[fordor41]

Originally Posted by KULTULZ

OK ...

If the engine came with a C0AE 2V intake, it should be a 292 complete, incl the DIST, which will be a DUAL ADVANCE. The DIST vacuum advance signal should be PORTED and will come off the 4V CARB.

The 54 intake manifold threw me off.

Hum, I have a '60 292 2V without a dual adv dist.(one vac line to dist) had trouble with the carb and installed a later '80's model 2V carb. connected to my dist. Works great. are you saying it should have a D.A. Dist?

[KULTULZ]

Originally Posted by fordor41

Hum, I have a '60 292 2V without a dual adv dist.(one vac line to dist) had trouble with the carb and installed a later '80's model 2V carb. connected to my dist. Works great. are you saying it should have a D.A. Dist?

Well, yes,

FORD went to DUAL ADVANCE (V-8 only) on the 57 model year run and it used a single signal line (until 1968 w/ IMCO).

DUAL ADVANCE means the DIST is both mechanical and vacuum advance whereas the previous LOAD-O-MATIC was vacuum advance only.

What might be tripping you is the 1956 performance 312 Y-BLOCK LOAD-O-MATIC used a DUAL DIAPHRAGM advance canister.

If you are using a late F2150 2V carb, it provides a ported vacuum signal.

It's being a 1960 FYB, it should be a DUAL ADVANCE DIST on the car. If it was a LOM, the car would not run correctly.

Hope I explained that correctly.

[fordor41]

got it KULTULZ ,thanks. I did have DV and LOM mixed up