hows it going guys!

so im a new owner of an old truck, lol
the guy i got it from had done alot, new paint, interior, wheels&tires, engine rebuild,ect.. was all done in backyard but he did decent work forsure.

one problem im having is the engine wanting to stall while im braking. which confuses me since the brakes have no vacuum? he said maybe they sucked something into filter when it ran out of gas, i will be taking a look tomorrow morning but my first guess was carb needs rebuild/adjustment

any ideas of things i should be checking into? vacuum leak? clogged air filter?
runs strong when im not slowing down, lol
thanks!

 

Welcome to FTE

I'm wondering if maybe it's ignition related? See if maybe, there is some kind of partial short to or interference with the coil or distributor, and the brake switch?

You should be able to illuminate the brake lights by shorting across the brake switch terminals. See if that affects ignition, at least at idle. Also could try (for test purposes only) disconnecting the brake switch wiring altogether and see if this stalling feature of your truck then goes away.

As far as carb rebuilding yes. Once every other year for sure.

And a friendly FTE public service announcement - inspect carefully the hood latch and safety catch for smooth and proper alignment, wear, or damage and proper positive release and engagement. The safety catch should snap quickly into the pocket to keep the hood from flying open if the latch fails. Be sure to check for this, to avoid losing hood out on the highway. Fairly common with these old trucks and gummed up lubricant, misaligned, etc.

 

Are you sure your engine is a 361? Those aren't normally found in an F100. Your truck would have come from the factory as an FE 352 - 2V. If someone replaced it with another FE engine, besides the 352 the most likely candidates (but not all of them) would have been the 360 or 390. What kind of transmission do you have? If an automatic, there might be a carb mounted anti-stall solenoid (called a dashpot) that's not adjusted right or is malfunctioning. I'd look into the carb float level like Tedster kinda suggested.

 

I have not checked block casting #s yet, I was told it's a 59 361 edsel with FE c6, but we will see when I get digging around this beast. Any sure give aways if it is, or Is not the edsel?

 

The only V8 installed in 1965/66 F100's was the 352 2V. The 361 FT engine was only installed in 500 and larger series trucks.

The Edsel 361 FE engine was only installed in 1958.

 

Thanks! Good idea to check.
My hood latch is probably the strongest part of truck haha

 

Re:brakes, If they are setup with a single pot and brake switch it can't be anything else really. I've never heard of this happening, but what else is new.

Once vacuum boost and other things started coming in then it starts to get more complicated.

 

Grab the casting numbers off the intake manifold and exhaust manifolds when you get a chance and post them here. If those parts can be ID'ed and are for one or the other (FE/FT) then you'll know as they don't interchange between the lines.

My money is on it being an FE.


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Couldn't get a clear # off exhaust, but intake #s read
5027
C5A9425b

 

It is single brake, I only had a minute to take a look, left town for work this morning, I will checkout brake switch asap once im home

 

It is single brake, I only had a minute to take a look, left town for work this morning, I will checkout brake switch asap once im home

 

Your rocker covers are '65 - '66, the C5 casting number on your intake manifold indicates 1965, and the horizontal oil filter was standard on truck blocks whereas car engines had vertical oil filters. This doesn't guarantee anything, but it broadly hints that your engine could be the 352. Check for casting date codes (single number, letter, one or two place number) on the engine block and also the engineering number. There are four machined bosses, two on each side just below the deck surfaces. At least one of them should have the block casting number. That will add to the identity clues.

 

I think you might be missing a digit in there, but just from that I can tell the intake manifold is 1965 or newer. The first C5 = 1965, at least.


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1965 Galaxie/LTD 352/390 2V & 1965 F100/350 352 2V intake manifold.

1958/64 FE engines have rounded valve covers without holes for smog valve/oil cap, there's an engine oil fill tube on the right (passenger) side.

These engines have a different bolt pattern on the block for the rubber insulators to bolt to than...

1965/76 FE engines have pent roof shaped valve covers with holes for oil cap/smog valve. 1965/66 valve covers are plain, 1967/76 have Powered by Ford embossed on them.

 

Is it the braking that causes it, or something else like idling (while not giving it gas) or I wonder if it is the momentum of the stopping motion that's causing some problem like gas from an overfilled bowl splashing down into the intake,

Or vapor-lock from that metal fuel line running across the block getting too hot?