Changed Fuel Filter-Now won't start

[Oliver the 28 A]

1928 Model A. Car was running great however I noticed the filter in the globe was pretty dark along with some sediment at the bottom. I ordered a new filter, cleaned out the globe, replaced filter/spring/rubber seal and now the car won't start. It fired right up and I drove it for about 3 miles. Everything ran fine. I let it sit for about an hour with fuel line still opened, fired right up and ran for about 30 seconds and died. Will not start now. I pulled fuel line to make sure I had flow which I did. Could it be something in the carb? Could the fuel line have some kind of vacuum effect and it needs primed? Please help

[johnbuckley]

assuming nothing else was altered .....it certainly sounds like fuel starvation...You say the fuel line has good flow. ...but one immediately suspects that may be fuel line is pushed too far into housing? ( I've been there, had that!) The olives should sit about 3/32 inch ( 2 millimetres ish) from the end of the line . Usually no vaccuum issues to over come unless no vent in filler cap... try it with cap off ,

[Tom Wesenberg]

Best to use the cork gasket to seal the glass. Ethanol will destroy rubber parts.

[1928Mik]

I had that problem after installing new screen filters. Culprit was a sticky carb needle valve. I pulled it out and used carb cleaner and a Q-tip. Took care of issue.

[Bill G]

I know you say your line is open, but that 30-second thing sure sounds like when I occasionally forget to turn the gas valve back on after letting the car sit. It takes about 30 seconds to use up the gas in the carb before it runs dry. If not that issue, then maybe something got loose and lodged itself in the line or an internal port or venturi insice the carb.

Good luck.

[Y-Blockhead]

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Have you tried it without the new filter installed?
A friend installed a new filter and it wouldn't start. Turned out he had the incorrect filter installed and the gasket was partially covering the holes in the filter. Worth a check...

[Patrick L.]

Did you let the bowl fill after the filter change ? If the filter bowl is empty, bleed it. If it is full them remove the filter and try again.

[Marshall V. Daut]

Disconnect the choke rod assembly from the lower casting and take out the carb's center bolt from the bottom. It's a 9/16" hex head bolt. Cradle the casting in your hand as you lower it. If there is no fuel or a very low amount in the lower casting's bowl, the needle and seat are not functioning properly, as previously suggested. Or fuel is not reaching the carb, as also suggested. By dropping the lower carb casting, you can visually assure yourself the carb is getting gas, at least enough to start the engine. If the bowl's fuel level is correct (about 1/2 to 3/4 of the way full), then the problem lies elsewhere.
Marshall

[Marshall V. Daut]

By the way, turn off the gas valve before separating the two carburetor halves.
M.

[JDupuis]

Lots of good suggestions.
I noticed this is your first post.!
WELCOME TO THE BARN!!! . Jeff

[NCRebel]

Originally Posted by Tom Wesenberg

Best to use the cork gasket to seal the glass. Ethanol will destroy rubber parts.

Amen to cork gasket on your glass bowl. Even with Sea-foam or other additive and non ethynol gas, the petroleum is too corrosive for the new poly gaskets.

As a new member also, welcome to the new learning curve.

[Oliver the 28 A]

i had plenty of fuel flow at the fuel line that connects to the carb with the new filter. I was also able to drive the car for a few miles right after I installed the new filter

[Oliver the 28 A]

Thank you. I will try that. If I let the car sit for a hour or so with the valve off and then turned back on right before trying to start I will get it to start for about 5 seconds before it shuts back down. And after that it won't start at all.

[Oliver the 28 A]

Thank you! I purchased my car knowing nothing about a Model A with the intent to learn and discover. I have had a lot of fun with it and look forward to learning as much as I can.

[J Franklin]

You should buy a bit of literature such as the owners manual and a good restoration manual. I have a booklet published by Ford concerning basic restoration guidlines.

http://www.ebay.com/itm/332389699754...84.m1555.l2649

Les Andrews has a few more in depth manuals that everybody seems to enjoy also.

[Bruce Adams]

CRACK the line by loosening the nut at the carb, allowing some air out, fuel flow on, and eliminating a probable air bubble induced when you had it apart.

[supergnat]

During one of my first experiences with a Model A I had the same problem. After turning the gas back on it Would run for about 5 seconds and then shut and not start again. I turned the gas off and waited just like you did and then turned it back on and had the same result. I am embarrased to say that I was turning the gas off when I thought I was turning it on and vice versa. That blunder made me miss riding in the 4th of July Parade. Hopefully that is your problem. Supergnat

[Chuck Sea/Tac]

I've seen the filter bowl gasket plug the outlet of the filter bowl

[jthomas6]

Originally Posted by supergnat

During one of my first experiences with a Model A I had the same problem. After turning the gas back on it Would run for about 5 seconds and then shut and not start again. I turned the gas off and waited just like you did and then turned it back on and had the same result. I am embarrased to say that I was turning the gas off when I thought I was turning it on and vice versa. That blunder made me miss riding in the 4th of July Parade. Hopefully that is your problem. Supergnat

Been there, done that! I now have a little saying:

OFF to the right; UP and running.

[Oliver the 28 A]

Originally Posted by supergnat

During one of my first experiences with a Model A I had the same problem. After turning the gas back on it Would run for about 5 seconds and then shut and not start again. I turned the gas off and waited just like you did and then turned it back on and had the same result. I am embarrased to say that I was turning the gas off when I thought I was turning it on and vice versa. That blunder made me miss riding in the 4th of July Parade. Hopefully that is your problem. Supergnat

I made sure of that because when I pulled the fuel line I had it off and to test good flow I turned it on. Thanks