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#1 |
Registered User
Join Date: May 2008
Location: Stuart IA
Posts: 68
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Engine Swap - truck will not shut off
so i just finished up my first ever engine swap yesterday and started it for the first time!! very exciting - everything went well - except i went to shut the truck off and nothing happened it kept running...
the switch worked fine before - it still could be bad i know! - but im wondering if it is related to my alternator upgrade. i switched to an internally regulated one from a newer truck and got the kit from lmc to connect it. it was just a 4 inch cable with the 2 correct plastic plugs to switch it - and a terminator block for the connection to the old regulator. anyone else seen this problem? or probably just bad switch? BEFORE ![]() AFTER ![]()
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1967 K20 'the white truck' sm420/Rockwell t221 Dana 44 front w/ Dana Spicer 1/4 turn lockouts Eaton Ho52 rear "holy **** this thing is a tank!" As soon as your born you start dying so you might as well have a good time! |
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#2 |
Registered User
Join Date: Aug 2009
Location: Ft Stockton Texas
Posts: 90
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Re: Engine Swap - truck will not shut off
I would guess bad switch, never heard of alternators doing this. I've never done a carb to carb switch though, usually prefer to go EFI so I'm not sure.
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#3 |
Registered User
![]() Join Date: Aug 2007
Location: Sachse, Texas
Posts: 614
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Re: Engine Swap - truck will not shut off
did you change any of the wiring going to or from the starter solenoid and the coil? I had mine wired up wrong and it did exactly what you are talking about......
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#4 |
Registered User
Join Date: May 2008
Location: Stuart IA
Posts: 68
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Re: Engine Swap - truck will not shut off
well i did change to electronic ignition...... and i just realized why this happened!! - i wasn't getting power from the unfused ignition spot in the fuse block so i connected a power wire direct to the battery for the coil - DUH - i feel like a dope! you can see the red wire along the loom just kind of stuffed in it connects direct to the battery -
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1967 K20 'the white truck' sm420/Rockwell t221 Dana 44 front w/ Dana Spicer 1/4 turn lockouts Eaton Ho52 rear "holy **** this thing is a tank!" As soon as your born you start dying so you might as well have a good time! |
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#5 |
Project Junkie! Fishing Poor!!
![]() Join Date: Dec 1999
Location: Olympia,Wa. 98512
Posts: 10,770
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Re: Engine Swap - truck will not shut off
That was going to be my guess...
![]() ![]() On another subject, rogergodding Thats a smoking avitar!!!
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On-line catolog Classic Heartbeat Pickup Parts WEHEPP@comcast.net Call us Toll Free (888) 338-2502 Like Us on Facebook No appointment necessary. 72 BB Chevy Custom Deluxe / Custom Camper 67 I-6 (Soon to be 5.7 LS1) Panel 68 BB Chevy Short Bed 72 6.0 LQ9 Short Bed Chevy 4X4 Olympia's fastest growing truck parts supplier. Olympia's home for Wayward Chevys Last edited by Classic Heartbeat; 09-21-2009 at 11:50 AM. |
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#6 |
The Older Generation
![]() ![]() ![]() Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,483
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Re: Engine Swap - truck will not shut off
-
That would certainly do it... ![]() LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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#7 | |
Registered User
Join Date: May 2008
Location: Stuart IA
Posts: 68
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Re: Engine Swap - truck will not shut off
Quote:
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1967 K20 'the white truck' sm420/Rockwell t221 Dana 44 front w/ Dana Spicer 1/4 turn lockouts Eaton Ho52 rear "holy **** this thing is a tank!" As soon as your born you start dying so you might as well have a good time! |
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#8 |
Registered User
Join Date: Dec 2006
Location: Porter Ranch, CA
Posts: 978
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Re: Engine Swap - truck will not shut off
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#9 | |
Registered User
Join Date: May 2008
Location: Stuart IA
Posts: 68
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Re: Engine Swap - truck will not shut off
Quote:
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1967 K20 'the white truck' sm420/Rockwell t221 Dana 44 front w/ Dana Spicer 1/4 turn lockouts Eaton Ho52 rear "holy **** this thing is a tank!" As soon as your born you start dying so you might as well have a good time! |
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#10 |
Registered User
![]() Join Date: Aug 2007
Location: Sachse, Texas
Posts: 614
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Re: Engine Swap - truck will not shut off
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#11 |
Registered User
Join Date: Apr 2014
Location: West Jordan, UT
Posts: 189
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Re: Engine Swap - truck will not shut off
Hey could you give me a detailed way that you fix this problem? I just posted this into a new forum but think it might be the same thing? Thanks!
Hey guys, I recently bought a 68 c20 custom camper 350. The guy that I bought it from was in the process of wiring in a new Painless Wiring harness (Item # 10206 if you search for it) and didnt finish everything. It looks like for the most part everything he did is good. The only think that I have found (And it is driving me NUTS) is that the ignition must me messed up. It turns over PERFECT, no problems. When I go to turn off the engine though, it will not turn off and I have to pull the switch that runs directly to the Cap and Rotor (Spark plugs). Any ideas as to what he did wrong? Diagrams or color coded wires to look for helps- I dont know much about wiring |
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#12 |
Registered User
Join Date: Mar 2012
Location: Evanston
Posts: 304
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Re: Engine Swap - truck will not shut off
Yes the alternator is connected to the distributor power meaning it will charge normally but will not shut off as it keeps energizing the distributor because it's past the ignition switch and engine is turning over. To fix this find your charge wire that is connected to the distributor power source and move it over to the battery terminal or junction box.
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My Patinia'd 69 69-http://67-72chevytrucks.com/vboard/showthread.php?t=517537 My RHD 68 http://67-72chevytrucks.com/vboard/s...d.php?t=594928 |
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#13 |
Registered User
Join Date: Apr 2014
Location: West Jordan, UT
Posts: 189
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Re: Engine Swap - truck will not shut off
@69 chevy lwb so I found the diagram and am still lost.. I think i have found the wire but i was hoping there was any chance I could get you to go above and beyond and circle the pont that I need to rewire to the terminal (In paint or Photoshop?) ? I will probably blow something up knowing my lack of knowledge with wiring haha. Thanks for your help! Here is a link to the diagram pdf (http://static.summitracing.com/globa...0510manual.pdf)
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#14 |
Msgt USAF Ret
![]() ![]() Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,714
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Re: Engine Swap - truck will not shut off
The next time you run the engine and it won't shut off with the key. Pull the small plug on the alternator. If the engine dies you have one of two possibilities.
The alternator is bad or you have the two wires in the plug reversed. It would be nice to know what was done to the charging system I.E. alternator upgrade, regulator jumpered, Gauge dash or idiot light dash.
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VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative. |
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#15 |
Registered User
Join Date: Dec 2007
Location: Glendale Arizona
Posts: 1,354
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Re: Engine Swap - truck will not shut off
Its a chevy it doesn't like to quit.
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1970 GMC 1500 stepside 1972 GMC Jimmy Custom 2004 Chevy Colorado 1989 Swb Silverado 1972 Aj's Stormer |
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#16 |
Registered User
Join Date: Apr 2014
Location: West Jordan, UT
Posts: 189
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Re: Engine Swap - truck will not shut off
Appreciate the help guys! VetteVet was right. The two wires were wired wrong... Would have never figured it out... appreciate you again!
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