The Ford Barn

Will N · 08-17-2018, 12:24 PM

Here are the symptoms, guess the cause: Pre-ignition under load, running hot under load, decrease in power, rolling idle.

First to get it right wins. (You get nothing if you win, except satisfaction)

100IH · 08-17-2018, 01:03 PM

Would rather comment on what you think is a logical plan of attack.

DJ S · 08-17-2018, 01:15 PM

Too advanced timing...

BILL WILLIAMSON · 08-17-2018, 01:16 PM

Timing WAY to FAST!
Bill Pinging

Benson · 08-17-2018, 01:17 PM

Too much spark advance (19 degrees) like you get when using A distributor with Model B timing cover.

Lean carb will do it also.

Will N · 08-17-2018, 01:49 PM

Sponsored Links (Register now to hide all advertisements)

I'll add that the timing was fine. The car ran beautifully on the trip out, and started exhibiting the symptoms on the way home. I have found the cause, and I'm wondering if any of you fine fellas could hazard a guess to what I found.

40 Deluxe · 08-17-2018, 02:02 PM

intake leak? Internal collapse in muffler?

Will N · 08-17-2018, 02:29 PM

Ok, I'll show my hand. I did a quick compression check by cranking over the engine by hand, and it sure felt like the compression was off on a couple cylinders. Pulled the head and sure'nuff, the head gasket had blown between 3 and 4.

ronn · 08-19-2018, 03:53 PM

sounds like "miss direction" to me......

30ccpickup · 08-19-2018, 04:02 PM

Wouldn't it be 4 and 3

nhusa · 08-20-2018, 01:18 PM

Quote:

Originally Posted by 30ccpickup

Wouldn't it be 4 and 3

Only If your on the left side and your right handed.
If your on the right side and your left handed it would be 3 and 4
If your on the left side and your left handed it would also be 3 and 4
If your on the right side and your left handed you are in the wrong place.

If you are ambidextrous you have to count 1, 2, 3, 4 and subtract one from the last number to get the first number then add one to it to get the second number.
You could also count 1, 2, 3, 4 select the last number for the first one and then subtract one to get the second.

You could also say the it is the cylinder closest to the firewall and the one that is next to it.

Just Saying!

Will N · 08-20-2018, 02:19 PM

... and if we were counting down under in Australia, it would be between 1 & 2

30ccpickup · 08-20-2018, 05:14 PM

Ford counts 1, 2, 4 , 3 from the right and the left just not forwords always backwards.

old31 · 08-21-2018, 05:45 AM

Quote:

Originally Posted by Will N

Ok, I'll show my hand. I did a quick compression check by cranking over the engine by hand, and it sure felt like the compression was off on a couple cylinders. Pulled the head and sure'nuff, the head gasket had blown between 3 and 4.

Curious, before you pulled the head did you do a compression check?

08-17-2018, 12:24 PM	#1
Will N Senior Member Join Date: Jul 2010 Location: Pennsylvania Posts: 1,101	here are the symptoms, guess the cause Here are the symptoms, guess the cause: Pre-ignition under load, running hot under load, decrease in power, rolling idle. First to get it right wins. (You get nothing if you win, except satisfaction)

08-17-2018, 01:03 PM	#2
100IH Senior Member Join Date: Dec 2011 Location: SW Idaho Posts: 970	Re: here are the symptoms, guess the cause Would rather comment on what you think is a logical plan of attack.

08-17-2018, 01:15 PM	#3
DJ S Senior Member Join Date: Aug 2014 Location: Southwick, MA Posts: 590	Re: here are the symptoms, guess the cause Too advanced timing... Last edited by DJ S; 08-17-2018 at 03:49 PM.

08-17-2018, 01:16 PM	#4
BILL WILLIAMSON Senior Member Join Date: Dec 2010 Location: FRESNO, CA Posts: 12,560	Re: here are the symptoms, guess the cause Timing WAY to FAST! Bill Pinging __________________ "THE ASSISTANT GURU OF STUFF"

08-17-2018, 01:17 PM	#5
Benson Senior Member Join Date: May 2010 Posts: 2,589	Re: here are the symptoms, guess the cause Too much spark advance (19 degrees) like you get when using A distributor with Model B timing cover. Lean carb will do it also. Last edited by Benson; 08-17-2018 at 01:23 PM.

08-17-2018, 01:49 PM	#6
Will N Senior Member Join Date: Jul 2010 Location: Pennsylvania Posts: 1,101	Re: here are the symptoms, guess the cause Sponsored Links (Register now to hide all advertisements) I'll add that the timing was fine. The car ran beautifully on the trip out, and started exhibiting the symptoms on the way home. I have found the cause, and I'm wondering if any of you fine fellas could hazard a guess to what I found.

08-17-2018, 02:02 PM	#7
40 Deluxe Senior Member Join Date: May 2010 Location: now Kuna, Idaho Posts: 3,778	Re: here are the symptoms, guess the cause intake leak? Internal collapse in muffler?

08-17-2018, 02:29 PM	#8
Will N Senior Member Join Date: Jul 2010 Location: Pennsylvania Posts: 1,101	Re: here are the symptoms, guess the cause Ok, I'll show my hand. I did a quick compression check by cranking over the engine by hand, and it sure felt like the compression was off on a couple cylinders. Pulled the head and sure'nuff, the head gasket had blown between 3 and 4.

08-19-2018, 03:53 PM	#9
ronn Senior Member Join Date: Feb 2011 Location: NNNNNNNNJJJJJJJJJJ Posts: 6,779	Re: here are the symptoms, guess the cause sounds like "miss direction" to me......

08-19-2018, 04:02 PM	#10
30ccpickup Senior Member Join Date: May 2010 Location: Wakarusa, IN Posts: 928	Re: here are the symptoms, guess the cause Wouldn't it be 4 and 3 __________________ http://MODELABASICS.com/ How Things Work on a Model "A" Ford Fordbarners, Feel free to use the pictures on my site to answer questions and create tutorials/tech articles.

08-20-2018, 02:19 PM	#12
Will N Senior Member Join Date: Jul 2010 Location: Pennsylvania Posts: 1,101	Re: here are the symptoms, guess the cause ... and if we were counting down under in Australia, it would be between 1 & 2

08-20-2018, 05:14 PM	#13
30ccpickup Senior Member Join Date: May 2010 Location: Wakarusa, IN Posts: 928	Re: here are the symptoms, guess the cause Ford counts 1, 2, 4 , 3 from the right and the left just not forwords always backwards. __________________ http://MODELABASICS.com/ How Things Work on a Model "A" Ford Fordbarners, Feel free to use the pictures on my site to answer questions and create tutorials/tech articles.

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