|
|
|
|
| Author |
|
|
Wer bremst verliert
Join Date: Jan 2005
Location: Toronto, Ontario
Posts: 4,767
|
Cutting spark by removing lead @ distributor?
Today might be the big day! After chasing down various fuel leaks, I may be going for a start and run-in this morning. Neighbors have already been warned...I have open headers right now!
I am running (attempting to run) Megasquirt and MSD, so this is very non-standard. In preparation for the real start I am planning on disconnecting the ignition and running the starter to get oil pressure up and test the connections for leaks. Is is acceptable/safe to simply remove the HT lead from the coil to prevent spark?
__________________
2007 911 Turbo - Not a toy 1985 911 Cab - Wife's toy 1982 911 3.2 Indiash Rot Track Supercharged track toy 1978 911 3.0 Lichtbau toy "Gretchen" 1971 911 Targa S backroad toy |
||
08-19-2006, 04:31 PM
|
|
|
Registered
Join Date: Mar 2005
Location: Rancho Cucamonga
Posts: 49
|
Pre-Start Cranking
JohnJL,
Why not remove the fuel pump fuse? this way you cylinders and plugs do not get any fuel during this cranking period. Good luck, Phatnine11 |
||
|
08-19-2006, 04:56 PM
|
|
|
Wer bremst verliert
Join Date: Jan 2005
Location: Toronto, Ontario
Posts: 4,767
|
I don't have a separate fuse for the fuel pump..its in a circuit with a bunch of other things ala Painless fuse box.
Good point on the pump, will disco that too. Can I just pull the HT lead?
__________________
2007 911 Turbo - Not a toy 1985 911 Cab - Wife's toy 1982 911 3.2 Indiash Rot Track Supercharged track toy 1978 911 3.0 Lichtbau toy "Gretchen" 1971 911 Targa S backroad toy |
||
|
08-19-2006, 05:03 PM
|
|
|
Warren Hall Student
|
No!! Do not remove the HT lead from the coil to the dizzy. You can fry your coil and MSD. Disconnect the power going to the MSD.
What can happpen if you pull the HT to the dizzy is the MSD sends the high capacity charge to the coil which has no place to send it so what can happen is it arcs inside the coil between 1st and secondary windings. In otherwords it fries it.
__________________
Bobby _____In memoriam_____ Warren Hall 1950 - 2008 _____"Early_S_Man"_____ Last edited by Bobboloo; 08-19-2006 at 05:12 PM.. |
||
|
08-19-2006, 05:07 PM
|
|
|
Wer bremst verliert
Join Date: Jan 2005
Location: Toronto, Ontario
Posts: 4,767
|
THanks Bobby. My MSD power is hooked into my closed-up relay box and I want to avoid cutting the power wire...can I remove the + wire to the coil and wrap it up in tape?
__________________
2007 911 Turbo - Not a toy 1985 911 Cab - Wife's toy 1982 911 3.2 Indiash Rot Track Supercharged track toy 1978 911 3.0 Lichtbau toy "Gretchen" 1971 911 Targa S backroad toy |
||
|
08-19-2006, 05:49 PM
|
|
|
Warren Hall Student
|
The better solution would be to get an extra spark plug and connect the HT lead to the plug and ground the plug.
Removing the positive to the coil would protect the coil but it might harm the MSD. Don't know for sure but better safe than sorry.
__________________
Bobby _____In memoriam_____ Warren Hall 1950 - 2008 _____"Early_S_Man"_____ |
||
|
08-19-2006, 05:57 PM
|
|
|
73' Porsche Targa
