Engine dying when coming to a stop

What does MMO stand for? Where can I buy some? Napa was clueless. Thanks! While at Napa, I purchased (2) #3036 filters, now I am wondering what I bought for $5.27 each. Read previous postings, I have never seen a paper filter that was installed in my fuel bowl, but then really, whats $10 anymore? Anxious to see what I bought.
 
Being at my office instead of at home, I probably listed an incorrect NAPA fuel filter number for the filter that is provided in the sediment bowl.

An identical fuel filter is made by WIX, with a similar number that should be listed under "Search"
 
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Bill - I agree with your statement and have one in my car "Add the "PENCIL" filter, in the top of your fuel valve, they're a GODSEND!" but I wonder if it really is such a GODSEND"!

With that filter installed, say it gets clogged up on the road, how can you rectify the situation with 3/4 of a tank of fuel still in the tank?

I also have the upside down "top hat" filter, which has been talked about previous, installed in my glass bowl. Wouldn't it be better for this one to get clogged then the pencil one? At least you can shut off the fuel and change the filter.
 
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For the poster who asked, mmo stands for Marvel Mystery Oil, and it is available at most auto parts stores. Use about 4oz per 10 gallons.....
 
Per reply #27 ........ I think for all of us .......... I would like to add that Bill & Buster-T are really our GODSEND ......... and the filter he mentions, well, it is just a Pencil Filter.

On a slightly more mechanical note, this little vertical upright fine screen in-tank filter protruding upwards in the tank is not only most important to help prevent clogging the shut off valve at the bottom of the tank ...... but it is equally as important to prevent harmful hard steel rust particle from entering and marring the soft metal shut-off valve material and cause it to leak.

I think this little filter is just about 2" tall or so which means if one has a total of 1" thick crud in the bottom of one's tank .... this filter would still work to allow gasoline to flow through the top clean screen area.

Remember if one had about half a tank of solid particles or crud, the tank will only hold half a tank of fuel, i.e., half as many gallons. Wow?

Also remember that 1" of crud is never ever desirable .... in my opinion, even 1/32" or less of solids and crud on a tank's bottom should be flushed out.

The much finer in-bowl filter, (in the sediment bowl), traps the very fine debris particles that can pass through the in-tank screen filter ..... when used together, one after the other, they work great to filter 80+ year old rusting tanks.

With a good clean tank with no loose rust, and no sand and silt, the Model A sediment bowl "alone" works just fine; especially if one drives one's Model A often and continues to flush the tank with every fill-up.
 
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So.......if the filter clogs up with rust along the road how do you get the fuel out of the tank? My point is if using the upside down "top hat" filter you can take it apart on the road. I understand about marring the shutoff valve but it will not happen suddenly as a clogged filter.
 
1. I think if one knows he has even a thin layer of rust in the bottom of the tank, it is "always" best to flush out the tank "prior" to installing the in-tank filter.

2. After the tank is flushed out and the bottom is clean of loose rust particles, sand, or other debris, any subsequent "heavier than gas" rust particles that occur in the tank with remain on the bottom just like the "heavier than gas" rust particles stay in the bottom of the sediment bowl ..... they will not float.

3. If an in tank filter was installed in a "clean" tank, and if this filter gets clogged while on the road, say a few years afterwards, this is usually a good sign that one is:

a. Usually almost out of gas; and,

b. Has a small amount of crud sitting way down on the bottom of his tank; and,

c. The upper part of the in-tank filter is exposed to the air as opposed to being exposed to liquid fuel.

d. Just add gas so the top of the filter will be surrounded by gas and be on your way.

Then further down below for a comparison, there is a carburetor gas strainer screen that is different.

It can fill up with crud and get clogged because the heavier than gas rust and crud cannot fall out or fall off from the screen like that of a vertical in-tank screen.

I have an in-tank for six years working great ..... I wish I could live to see enough rust in my rusty tank to witness it getting clogged.

Appears if the total surface and length of an in-tank filter screen gets clogged just after a few years of service, this is not at all normal, and one would need to find what is clogging it.

And finally, if a full tank of gas cannot be removed through the bottom of the tank for any reason, it would have to be siphoned through the top opening.

I do this too sometimes ..... easy .... drive about 10 miles to get a full tank of gas in my van, return, and rather than fool around with gas cans, just siphon it into my lawn mower.

Hope this helps.
 
Everyone is pointing to an aftermarket filter from NAPA??? #1 shouldn't be there. I have the same problem and only one person her mentioned the carburetor float level. That's likely the problem, I have the same problem and symptom. I am going to try changing the float level and see if that helps. I've been told it's too high and the gas "flood's" the carburetor. It's a project among many in the spring...
 
Hi Lee,

In looking at the large rust flakes in his first photo of his glass sediment bowl, one questions his mentioning (9) months of running great ..... then idling problems.

Most of us wish his problem was only mosquitoes in his garage ..... but this is a life safety issue of a car dying on a modern highway where today's drivers are not used to seeing roadside stops and/or repairs.

Just hoping for an easy fix without much cost involved..
 
I decided that the best solution was to remove the tank and clean it, removing the tank was an easy job, after cleaning the tank, I put it back in with all new stainless steel bolts,washers and nuts.
 
Cape Codder said:
So.......if the filter clogs up with rust along the road how do you get the fuel out of the tank? My point is if using the upside down "top hat" filter you can take it apart on the road. I understand about marring the shutoff valve but it will not happen suddenly as a clogged filter.
Click to expand...

I have never heard of that filter plugging up solid, and even if it did, then you disconnect the fuel line at the carb and blow back into the tank. This will unplug it so you can drive home and flush the junk out of the tank.
 
What Tom is reporting was Model A "Standard Operational Procedure", (SOP).

Before the in-tank screen filters were available, the hole in the bottom of the Model A tank would "begin" to get plugged causing engine missing and fuel starvation where it was common for a guy to stop, unscrew the fuel line at the carburetor, loosen the fuel connection at the sediment bulb, swing the metal gas line upwards 90 degrees, and blow in the fuel line to blow sand and rust away from the tank's bottom opening..

How often? Depends. In terribly rusty tanks, sometimes twice in a (12) mile trip to the movies, (at night). Nothing to it .... just needed a flash light ...... not much night traffic in rural areas where everyone went to bed early prior to TV.

Same was done with vintage tractors.

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One vintage fix performed years ago, that may or may not help Model A owners today in some rusty tank cases:

With tank empty, get the following:

1. Lubricating oil in a pan.

2. Kerosene in a pan.

3. Barbecue mop with a long handle (Used to apply BBQ sauce on meat).

Procedure:

A. Dip mop in lubricating oil, (detergent or non-detergent), and wring out.

B. Pat bottom of fuel tank with oiled mop to collect sand and rust particles on oiled mop.

C. Thoroughly clean mop in kerosene, re-oil and wring out.

D. Repeat step B. above.

E. Wait about a week until more sand and rust can move over to where sand and rust was formerly removed and repeat Steps A though D.

Primitive, yes ....... sounds like a "Fred Fix" with the Flintstones, yes, but it did help.

Hope this helps someone one day ...... and remember ..... this was never included in any of Ford's Service Bulletins.
 
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