Go Back   The Ford Barn > General Discussion > Model A (1928-31)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 01-28-2013, 11:41 PM   #121
Mike V. Florida
Senior Member
 
Mike V. Florida's Avatar
 
Join Date: May 2010
Location: South Florida
Posts: 14,013
Send a message via AIM to Mike V. Florida
Default Re: Who Can Diagnose THIS Total Mystery? Win A Prize?

Quote:
Originally Posted by sgwilson904 View Post
... I do believe (as Ray Horton suggested back in Post #25) that it is NOT a fuel problem but something electrical ...
It has been said here many times, "90% of fuel problems are electrical".
__________________
What's right about America is that although we have a mess of problems, we have great capacity - intellect and resources - to do some thing about them. - Henry Ford II
Mike V. Florida is offline   Reply With Quote
Old 01-29-2013, 12:22 AM   #122
Fred K-OR
Senior Member
 
Fred K-OR's Avatar
 
Join Date: May 2010
Location: Stayton, Oregon
Posts: 3,793
Default Re: Who Can Diagnose THIS Total Mystery? Win A Prize?

Heat riser??????
__________________
Fred Kroon
1929 Std Coupe
1929 Huckster
Fred K-OR is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 01-29-2013, 12:58 AM   #123
Oldtom
Junior Member
 
Join Date: Jul 2011
Posts: 1
Default Re: Who Can Diagnose THIS Total Mystery? Win A Prize?

I once had a similar problem with my '28 Sedan after replacing a condenser on the road. Eventually discovered that the fibre washer was missing from the contact end of the condenser and also that the new condenser was a quarter inch longer than the old one. The car would sometimes start and run well all day, or run good for a time, or start and run badly, this all due to the condenser being too close to the distributor housing. I insulated the end of the screw from the dizzy and all was fixed.
Oldtom is offline   Reply With Quote
Old 01-29-2013, 01:49 AM   #124
Bill in SoCal
Senior Member
 
Bill in SoCal's Avatar
 
Join Date: May 2010
Location: Claremont, CA 91711
Posts: 242
Default Re: Who Can Diagnose THIS Total Mystery? Win A Prize?

Do you have to take the prize?
Bill in SoCal is offline   Reply With Quote
Old 01-29-2013, 06:52 AM   #125
BILL WILLIAMSON
Senior Member
 
BILL WILLIAMSON's Avatar
 
Join Date: Dec 2010
Location: FRESNO, CA
Posts: 12,558
Default Re: Who Can Diagnose THIS Total Mystery? Win A Prize?

Did anyone mention that if it has a stock dist. cap, they are notorious for the spark going to #4 cyl can jump out of the top of the cap to #3 cyl connector strap & screw up both cyls. Rev it up & check it in the dark. Also look for dull fuzzy area on top of cap under #3 connector strap.
I think this condition could possibly cause his symptoms.
If I win, I want TWINKIES! Bill W.
__________________
"THE ASSISTANT GURU OF STUFF"
BILL WILLIAMSON is offline   Reply With Quote
Old 01-29-2013, 07:55 AM   #126
sgwilson904
Member
 
Join Date: Jan 2012
Location: Jacksonville Beach, FL
Posts: 49
Default Re: Who Can Diagnose THIS Total Mystery? Win A Prize?

Quote:
Originally Posted by Tom Wesenberg View Post
Did this start all of a sudden, or with the onset of warmer weather?
It does sound like typical ethanol problems on warmer days.

The condenser and coil are often heat related when they fail, but I think you changed both of them.
Tom, it started this right after I got it last summer and we all assumed it might be vapor lock or some kind of heat-related issue...but now, even in 60-70 degree temps it STILL does it.

And the really weird thing: even after changing both condenser and coil, it drove just fine (mostly at 45 mph for long stretches punctuated by some stops/starts through small towns for more than 100 miles) before it resumed the same misbehavior when the engine was running at about 170 and air temp around 72.
sgwilson904 is offline   Reply With Quote
Old 01-29-2013, 08:11 AM   #127
Tom Wesenberg
Senior Member
 
Tom Wesenberg's Avatar
 
Join Date: May 2010
Location: Mpls, MN
Posts: 27,461
Default Re: Who Can Diagnose THIS Total Mystery? Win A Prize?

Have you removed the fuel line at the carb and let it flow into a quart jar?
You should have a strong steady flow until the jar is almost full.
Tom Wesenberg is offline   Reply With Quote
Old 01-29-2013, 08:15 AM   #128
zzlegend
Senior Member
 
zzlegend's Avatar
 
Join Date: May 2010
Location: Reseda, Calif.
Posts: 2,140
Default Re: Who Can Diagnose THIS Total Mystery? Win A Prize?

This thread got very confusing when it got hijacked. sgwilson904, i hope you get it fiqured out. I thing at a time. You will get it.
zzlegend is offline   Reply With Quote
Old 01-29-2013, 08:32 AM   #129
sgwilson904
Member
 
Join Date: Jan 2012
Location: Jacksonville Beach, FL
Posts: 49
Default Re: Who Can Diagnose THIS Total Mystery? Win A Prize?

Quote:
Originally Posted by Tom Wesenberg View Post
Have you removed the fuel line at the carb and let it flow into a quart jar?
You should have a strong steady flow until the jar is almost full.
Yes, at first thinking it was debris in the fuel line (we saw a very few flakes in the glass bowl at the firewall), we drained the tank entirely. Nothing much came out of the tank when we drained at the fuel shutoff valve.

Suspecting the flakes were tiny pieces of cork from the gas guage, we replaced old one with a new neoprene one to prevent any future cork erosion due to ethanol. We also replaced the filters at the tank shutoff valve, thoroughly cleaned the glass bowl and replaced filter in there, replaced fuel line itself, then checked flow which was fine. Also checked to see that fuel line was properly inserted at the firewall and at the carb.

After all that, it ran fine for a while (as in maybe 10 minutes), then started sputtering and backfiring and losing power again.
sgwilson904 is offline   Reply With Quote
Old 01-29-2013, 09:20 AM   #130
modelAtony
Senior Member
 
modelAtony's Avatar
 
Join Date: May 2010
Location: lafayette,la
Posts: 459
Default Re: Who Can Diagnose THIS Total Mystery? Win A Prize?

sgwilson904. whooa!!!! you just said you had filter in GLASS BOWL ? TAKE IT OUT AND CHUNK IT IN A DITCH. try running car again with filter out. have fun modelAtony Lafayette,la
modelAtony is offline   Reply With Quote
Old 01-29-2013, 10:14 AM   #131
Marshall57
Senior Member
 
Marshall57's Avatar
 
Join Date: Jul 2011
Location: Elko Nevada
Posts: 217
Default Re: Who Can Diagnose THIS Total Mystery? Win A Prize?


Having said that you have had help from club members, I would use that help a little more and borrow known working parts to help eliminate problems until I could zero in on the culprit.

I would go about this a little differently, first I would bypass the whole fuel system, by that I mean that I would find or make a two or three gallon fuel tank and pipe it directly to the carburetor. This would get you away from any problems from the tank, filter system, cutoff valve, bad cap, stuff in the tank or any other fuel related problem.
If this didnít do the trick I would reconnect the fuel system and trade out the distributor with a known good one a club member is using on a properly running car.

Next I would go to the carburetor and borrow one that is known to be good. If all these donít find the problem I would change out the ignition switch with a simple one that is known to be problem free.

Next I would go to the dash and remove it and look to see if the amp meter is shorting out against the firewall, and trade it out for one that is known to be working correctly.
And last I would start looking at the valves, checking for clearance.

If you play your cards right you will either find the problem or have a new car within a few days!!
Marshall57 is offline   Reply With Quote
Old 01-29-2013, 10:26 AM   #132
AL in NY
Senior Member
 
AL in NY's Avatar
 
Join Date: May 2010
Location: Southern Upstate New York
Posts: 868
Default Re: Who Can Diagnose THIS Total Mystery? Win A Prize?

sgwilson904, I'm with "modelAtony". Take that fuel bowl filter out and throw it away.
__________________
AL in NY
AL in NY is offline   Reply With Quote
Old 01-29-2013, 10:35 AM   #133
Tom Wesenberg
Senior Member
 
Tom Wesenberg's Avatar
 
Join Date: May 2010
Location: Mpls, MN
Posts: 27,461
Default Re: Who Can Diagnose THIS Total Mystery? Win A Prize?

Quote:
Originally Posted by AL in NY View Post
sgwilson904, I'm with "modelAtony". Take that fuel bowl filter out and throw it away.
A screen should be in the top of the glass filter, but not the filter that some people add, which is easily seen through the glass.
Tom Wesenberg is offline   Reply With Quote
Old 01-29-2013, 10:59 AM   #134
BarracudaBoy
BANNED
 
Join Date: Oct 2011
Location: Clarksville, TN
Posts: 147
Default Re: Who Can Diagnose THIS Total Mystery? Win A Prize?

Did you ever check the float level? if the float is set too low the fuel bowl will not fill up as it should. It might run fine at idle and a couple of times around the block. Once you get going down the road at a good clip the bowl drains down because the float is holding the needle partially closed and you get a lean condition that causes the car to backfire and overheat as you describe. After it sits the bowl fills back up (to it's low level) and the car cools off, it will fire back up, run, then it repeats making you crazy..
BarracudaBoy is offline   Reply With Quote
Old 01-29-2013, 11:01 AM   #135
sgwilson904
Member
 
Join Date: Jan 2012
Location: Jacksonville Beach, FL
Posts: 49
Default Re: Who Can Diagnose THIS Total Mystery? Win A Prize?

Quote:
Originally Posted by Tom Wesenberg View Post
A screen should be in the top of the glass filter, but not the filter that some people add, which is easily seen through the glass.
I should have been more precise. I did actually install only the small SCREEN and not that fiber filter thing I've seen some guys use and fills up much of the glass bowl.
sgwilson904 is offline   Reply With Quote
Old 01-29-2013, 01:13 PM   #136
H. L. Chauvin
Senior Member
 
Join Date: May 2010
Posts: 4,179
Default Re: Who Can Diagnose THIS Total Mystery? Win A Prize?

You are reporting a few things that appear to be helpful, i.e.,:

1. Message no.1, paragraph no. 8: "Pulling on choke helps."

2. Message no. 114, first paragraph: "It never really dies" ........ & like a temporary hospital life support machine, again: "pulling on choke gives it slightly more power.".

3. Several have suggested the mysterious "vapor lock"; however, in Message no, 41, Mr. Mike V suggests what was previously reported, poor engine ground; hence, fuel line providing the engine ground & getting hot even in cool weather thus causing "vapor lock" others say are possible.

4. All of this voodoo sputtering when only God knows when, engine never dying, but engine helped slightly when choke pulled out sounds very familiar to lack of fuel.

5. Rather than buying 5 more coils, 4 more condensers, & 3 more carburetors, plus half a catalog of parts, I would first cut the gas line, (less than $6.00 to replace), & splice it with a rubber hose, (between sediment bowl to carburetor), just in case the gas line is heating as an engine ground & providing vapor lock.


6. If this procedure makes matters worse, you know you have hurt the engine grounding.


7. If not, with this one simple procedure, the Francois Duvalier's Mysterious Voodoo "vapor lock" has been eliminated by not having a part-time heated gas line.


Sincerely hopes this helps the mysterious "unlnown"!

Last edited by H. L. Chauvin; 01-29-2013 at 01:19 PM. Reason: typo
H. L. Chauvin is offline   Reply With Quote
Old 01-29-2013, 01:20 PM   #137
Mitch//pa
BANNED
 
Join Date: May 2010
Location: Bucks County, PA
Posts: 11,454
Default Re: Who Can Diagnose THIS Total Mystery? Win A Prize?

Quote:
Originally Posted by H. L. Chauvin View Post
You are reporting a few things that appear to be helpful, i.e.,:

1. Message no.1, paragraph no. 8: "Pulling on choke helps."

2. Message no. 114, first paragraph: "It never really dies" ........ & like a temporary hospital life support machine, again: "pulling on choke gives it slightly more power.".

3. Several have suggested the mysterious "vapor lock"; however, in Message no, 41, Mr. Mike V suggests what was previously reported, poor engine ground; hence, fuel line providing the engine ground & getting hot even in cool weather thus causing "vapor lock" others say are possible.

4. All of this voodoo sputtering when only God knows when, engine never dying, but engine helped slightly when choke pulled out sounds very familiar to lack of fuel.

5. Rather than buying 5 more coils, 4 more condensers, & 3 more carburetors, plus half a catalog of parts, I would first cut the gas line, (less than $6.00 to replace), & slpice it with a rubber hose just in case the gas line is heating & providing vapor lock.

6. If this procedure makes matters worse, you know you have hurt the engine grounding.

7. If not, the Francois Duvalier's Mysterious Voodoo "vapor lock" has been eliminated by not having a part-time heated gas line.

Seriously hopes this helps!
or use the tool that mike K posted to see if the fuel bowl level drops its really elementary
Mitch//pa is offline   Reply With Quote
Old 01-29-2013, 01:47 PM   #138
H. L. Chauvin
Senior Member
 
Join Date: May 2010
Posts: 4,179
Default Re: Who Can Diagnose THIS Total Mystery? Win A Prize?

Per no. 136, & what owner reports, appears fuel delivery is a problem; next, why?

Possible new painted engine blocking ground?

Mesage no. 131 could also be a possible next step.
H. L. Chauvin is offline   Reply With Quote
Old 01-29-2013, 02:11 PM   #139
JBohannon
Senior Member
 
Join Date: Dec 2011
Posts: 179
Default Re: Who Can Diagnose THIS Total Mystery? Win A Prize?

As several of us has had you can have vaporlock for a few reasons regardless of outside temperature. As I stated before I had a fuel line too close to the exhaust line and it caused vapor lock. Check yours.
JBohannon is offline   Reply With Quote
Old 01-29-2013, 02:39 PM   #140
George Miller
Senior Member
 
George Miller's Avatar
 
Join Date: May 2010
Location: NC
Posts: 2,956
Default Re: Who Can Diagnose THIS Total Mystery? Win A Prize?

no sign of anything but a few flakes at the bottom and in the clear glass filter at the firewall.
__________________________________________________ __________________________
Don't you think these flakes may be getting over the gas inlet and blocking the flow. It is a gas flow problem for sure. Unless you have two problems.
You need to check gas flow at the time of the problem. Take out the plug at the bottom of the carb, and see how much you get. Should be a steady stream. While your at it check for a nice hot blue spark. one has to be not working right, or both.

Last edited by George Miller; 01-29-2013 at 03:07 PM.
George Miller is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 11:20 AM.