 
Main Menu
|
|
Nevada Classics
|
|
Advertise at CC
|
|
April 2024
|
| S |
M |
T |
W |
T |
F |
S |
| |
1 |
2 |
3 |
4 |
5 |
6 |
| 7 |
8 |
9 |
10 |
11 |
12 |
13 |
| 14 |
15 |
16 |
17 |
18 |
19 |
20 |
| 21 |
22 |
23 |
24 |
25 |
26 |
27 |
| 28 |
29 |
30 |
|
|
|
|
|
|
CC Advertisers
|
|
06-04-2019, 04:58 PM
|
|
CC Member
|
|
|
Join Date: Mar 2008
Location: Edgewood,
WA
Cobra Make, Engine: SPF 2773 Ford Racing 427W
Posts: 130
|
|
Not Ranked
SPF Help
SPF Help! I'm Jerry , I have # 2773 , have owned since day one 2008, did the install myself. Ford Racing Windsor Stroker 427, Dual Spark Blue , MSD 8485, standard coil, Holley 670. It started running bad last fall, rebuilt carb. replaced trigger coil, still ran bad. Missing in exhaust note. Took carb apart did not see anything wrong. Still runs rough, replaced coil, no change. Now when the twin fans come on it kills the motor. Now after it starts it runs for 2 seconds then shuts off. Ran a 12V wire to coil , after it starts it will keep running, but when the funs come on it stumbles . Replaced ing. switch, did not change. I'm stumped, Jerry
|
-
Advertising
06-04-2019, 08:14 PM
|
 |
CC Member
|
|
|
Join Date: May 2008
Location: Brisbane,
QLD
Cobra Make, Engine:
Posts: 2,773
|
|
Not Ranked
What is the spark quality like at the plug leads, as tested with a spark tester etc?
Have you visually checked the cap and rotor?
Gary
|
06-04-2019, 09:11 PM
|
 |
CC Member
|
|
|
Join Date: Sep 2001
Location: Danville,
CA
Cobra Make, Engine: CSX 6079 482CI CSX cross ram
Posts: 1,354
|
|
Not Ranked
if you disconnect the fans does it run right?
|
06-04-2019, 09:52 PM
|
|
CC Member
|
|
|
Join Date: Aug 2007
Location: Carlsbad,
Ca
Cobra Make, Engine: SPF 2932 with 438 Lykins Motorsports engine. Previous owner of FFR 5452.
Posts: 2,613
|
|
Not Ranked
What does your ammeter read while the engine is running with the fans off?
__________________
Jim
|
06-04-2019, 11:19 PM
|
|
CC Member
|
|
|
Join Date: Mar 2008
Location: Edgewood,
WA
Cobra Make, Engine: SPF 2773 Ford Racing 427W
Posts: 130
|
|
Not Ranked
Cap and rotor are new . Amp meter reeds to the plus side . I have a spark checker on number 8 plug wire, I can see it's misfiring.Optima battery was
check ,amps and volts are good. Ground wire were cleaned. Thanks guys for chiming in. Jerry
|
06-04-2019, 11:22 PM
|
|
CC Member
|
|
|
Join Date: Mar 2008
Location: Edgewood,
WA
Cobra Make, Engine: SPF 2773 Ford Racing 427W
Posts: 130
|
|
Not Ranked
I'll try unplugging the fans tomorrow . Jerry
|
06-05-2019, 06:46 AM
|
|
CC Member
|
|
|
Join Date: Dec 2015
Cobra Make, Engine: Superformance #705, Ford Racing 460 - 514ci
Posts: 108
|
|
Not Ranked
Bad ignition box?
|
06-05-2019, 07:32 AM
|
|
CC Member
|
|
|
Join Date: Mar 2008
Location: Edgewood,
WA
Cobra Make, Engine: SPF 2773 Ford Racing 427W
Posts: 130
|
|
Not Ranked
Ignition box was replaced , did not change the problem.
|
06-05-2019, 08:00 AM
|
 |
Half-Ass Member
|
|
|
Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 21,897
|
|
Not Ranked
Quote:
Originally Posted by FOMOCONUT
I'll try unplugging the fans tomorrow . Jerry
|
When the fans come on, that places additional load on the alternator which needs mechanical energy from your engine -- and that is just enough to kill your engine (because the engine is not running right). If you disconnected your alternator, and the fans were on, it likely would not kill your engine. You could test it that way to eliminate the red herring of some sort of bizarre wiring malfunction that involved the fans that was causing your engine to run poorly. |
06-05-2019, 08:11 AM
|
 |
CC Member
|
|
|
Join Date: Feb 2018
Location: Lodi,
CA
Cobra Make, Engine: 427 manowar forged crank roller rockers . BIG CAM.
Posts: 784
|
|
Not Ranked
check relays and make sure battery is fully charged.
|
06-05-2019, 08:21 AM
|
|
CC Member
|
|
|
Join Date: Aug 2007
Location: Carlsbad,
Ca
Cobra Make, Engine: SPF 2932 with 438 Lykins Motorsports engine. Previous owner of FFR 5452.
Posts: 2,613
|
|
Not Ranked
Did you replace the plugs?
Is it one cylinder misfiring or all of them?
Pull plug wires one by one while running and isolate misfiring cylinder. Swap plug to another cylinder and see if misfire moves to that cylinder. If so, it’s the plug.
If not the plugs, wires, distributor, coil, carb, alternator, pull the offending cylinder’s valve cover and rotate engine manually to check valve operation. Could be a valve failing to open.
__________________
Jim
|
06-05-2019, 09:08 AM
|
|
CC Member
|
|
|
Join Date: May 2015
Posts: 618
|
|
Not Ranked
Do you have a choke horn on that carb? If not its easy to get the main body backwards...
SURE the plugs are per firing order?
Polarity to the coil correct?
Have you opened up your MSD(?) Dizzy? Does it look like spent time at the bottom of the sea? (They Rust BAD)
__________________
Superformance 1764
Ford Racing 427 SB
|
06-14-2019, 08:45 AM
|
 |
Senior Club Cobra Member
|
|
|
Join Date: Aug 2004
Location: Ferndale,
WA
Cobra Make, Engine: SPF2089
Posts: 459
|
|
Not Ranked
Jerry you might want to post this in the SPF area, rather than the NW Club.
Superformance - Club Cobra
Good luck
Tim
__________________
dblbarrel
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -7. The time now is 01:55 AM.
|
Linear Mode
