Tunnel Ram setup WON'T STAY RUNNING - 460 Ford Forum
General Race Tech All other topics, such as Fuel Delivery, Ignition, Engine, Safety, Data Aquisition, Suspension, etc...

User Tag List

 
LinkBack Thread Tools Search this Thread Display Modes
post #1 of 7 (permalink) Old 06-27-2014, 11:59 PM Thread Starter
Junior Member
 
Join Date: Jun 2014
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
Tunnel Ram setup WON'T STAY RUNNING

ok I have a 460 bored so now a 468, .588 hydraulic flat tappet cam, sjc aluminum heads and a weiand tunnel ram with 2 new holley 600cfm carbs.

Heres the problem, the motor is in time and all that jazz. The motor fires up idles great about 900 rpm then just shuts off after about 20 seconds.
OK... now you pat the gas fires right up idles like a champ as before but shuts off after about 10 seconds...
Now 5 seconds.... next crank....2 sec... now won't crank and seems flooded?
Leave it sitting for 15 min come back fires right up and the process starts again.

I am completely stumped on what the issue is. There is definatly no lack of fuel that's for sure. I've checked for vacuum leaks maybe ist electrical?


PLEASE HELP!!!!!
468sleekcraft is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 06-28-2014, 09:06 AM
Senior Member
 
White Lightning's Avatar
 
Join Date: Feb 2010
Posts: 5,676
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 62 Post(s)
 
Something in the ignition is heating up and going open.
Rob

Rob Hawes-Anchorage Rod Works-Anchorage, Alaska
White Lightning is offline  
post #3 of 7 (permalink) Old 06-28-2014, 08:38 PM
Senior Member
 
Gmsmkr's Avatar
 
Join Date: Dec 2013
Location: Alabama
Posts: 666
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
 
If you have a fusible link in the power source to the ignition I would check there.

Tag and ins it's a street car, how it gets there does it really matter?

Nobody's perfect but if u drive a ford your darn close.
Gmsmkr is offline  
 
post #4 of 7 (permalink) Old 06-29-2014, 12:12 AM
Senior Member
 
Join Date: Aug 2008
Location: WAY up in the U.P. of M.I.
Posts: 876
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
What distrib is in it? I'd check the pickup coil in it...

557ci 70 Maverick, [email protected] 1.25 60ft.... So far....
A70Maverick is offline  
post #5 of 7 (permalink) Old 06-29-2014, 09:47 AM Thread Starter
Junior Member
 
Join Date: Jun 2014
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
Quote:
Originally Posted by A70Maverick View Post
What distrib is in it? I'd check the pickup coil in it...
A summit racing magnetic pickup and ignition box, did the same thing with the old point dist too
468sleekcraft is offline  
post #6 of 7 (permalink) Old 06-29-2014, 09:54 AM Thread Starter
Junior Member
 
Join Date: Jun 2014
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
The spark plugs are champion 71-1 and summit said 711, R12YC but the pack says small engine plug? For mowers ect. .. Idk if it could be plugs or like you said the coil. I'm going to test some of the wires with a meter and see what the voltage reads when it shuts off.
468sleekcraft is offline  
post #7 of 7 (permalink) Old 07-03-2014, 12:16 PM
Senior Member
 
Join Date: Jan 2006
Location: So.Cal
Posts: 2,426
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
 
It could be electrical / ignition related, or it could be flooding. Has it backfired at all when attempting to start it??....if so, it could have ruptured the power valve diaphram, and its allowing extra fuel to leak into the manifold..
But as its been suggested, start looking at the power side of the system and the ignition.
Begin the proccess of elimination...

As the world turns...I get more dizzy!
TorinoStyle2 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the 460 Ford Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome