The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 07-24-2015, 04:04 PM   #1
ole truck
Registered User
 
Join Date: Mar 2015
Location: Montgomery
Posts: 15
72 c10 starting system

Ok, sbc 350 with th400 trans. 168 tooth flexplate. Jegs super lite starter part#10060 there is continuity test from signal terminal on solenoid to starter housing. Which is sending battery voltage through engine block, During cranking????? Shorts out starter.. any help is appreciated
ole truck is offline   Reply With Quote
Old 07-24-2015, 04:05 PM   #2
ole truck
Registered User
 
Join Date: Mar 2015
Location: Montgomery
Posts: 15
Re: 72 c10 starting system

Correction part#10065
ole truck is offline   Reply With Quote
Old 07-24-2015, 04:32 PM   #3
Baddflash
Registered User
 
Join Date: May 2015
Location: Edmonton,Alberta, Canada
Posts: 103
Re: 72 c10 starting system

Ok, how many ohms are you reading from the solenoid to the housing? You should have a reading as one side of the coil is connected to power one side is connected to the housing for ground. If it reads as a dead short (little or no resistance) than I would think the solenoid is bad or in contact with the housing somewhere.
Baddflash is offline   Reply With Quote
Old 07-24-2015, 04:47 PM   #4
ole truck
Registered User
 
Join Date: Mar 2015
Location: Montgomery
Posts: 15
Re: 72 c10 starting system

0-ohms.that's what I thought also. I had jegs send me a 2nd starter. Same thing...
ole truck is offline   Reply With Quote
Old 07-24-2015, 04:49 PM   #5
Baddflash
Registered User
 
Join Date: May 2015
Location: Edmonton,Alberta, Canada
Posts: 103
Re: 72 c10 starting system

Have you tried the starter outside of the vehicle?
Baddflash is offline   Reply With Quote
Old 07-24-2015, 05:10 PM   #6
ole truck
Registered User
 
Join Date: Mar 2015
Location: Montgomery
Posts: 15
Re: 72 c10 starting system

Yes,works fine. But when bolted to to engine and during cranking there is battery current on engine block. Disconnect wires from starter and simulate starting no battery current at block.
ole truck is offline   Reply With Quote
Old 07-24-2015, 05:19 PM   #7
Baddflash
Registered User
 
Join Date: May 2015
Location: Edmonton,Alberta, Canada
Posts: 103
Re: 72 c10 starting system

What is the grounding like at the block where the cable connects and where the starter bolts up? Is everything clean? Is the good continuity from battery to starter? What size is the ground the ground cable?
Have you tried running a jumper cable from the starter directly to the ground terminal of the battery? Sounds like you are lacking sufficient ground.
Baddflash is offline   Reply With Quote
Old 07-24-2015, 05:31 PM   #8
ole truck
Registered User
 
Join Date: Mar 2015
Location: Montgomery
Posts: 15
Re: 72 c10 starting system

New 00 gauge wires on battery. Negative battery terminal to passenger side frame.. driver's side rear head grounded to drivers side frame same 00 gauge. Have not tried jumper ground. Also there is a little paint on lock where starter mounts... but still battery current at block?
ole truck is offline   Reply With Quote
Old 07-24-2015, 05:36 PM   #9
Baddflash
Registered User
 
Join Date: May 2015
Location: Edmonton,Alberta, Canada
Posts: 103
Re: 72 c10 starting system

You need ground to complete a circuit, if you don't have that ground you will energize the ground side till a ground is found, if not everything connected will read power.
Have you tried you meter reading from the starter housing to the battery ground terminal?
Baddflash is offline   Reply With Quote
Old 07-24-2015, 05:37 PM   #10
ole truck
Registered User
 
Join Date: Mar 2015
Location: Montgomery
Posts: 15
Re: 72 c10 starting system

Ohms?
ole truck is offline   Reply With Quote
Old 07-24-2015, 05:38 PM   #11
Baddflash
Registered User
 
Join Date: May 2015
Location: Edmonton,Alberta, Canada
Posts: 103
Re: 72 c10 starting system

Yes on ohms
Baddflash is offline   Reply With Quote
Old 07-24-2015, 05:51 PM   #12
ole truck
Registered User
 
Join Date: Mar 2015
Location: Montgomery
Posts: 15
Re: 72 c10 starting system

0.2 ohm....that sound right to you?
ole truck is offline   Reply With Quote
Old 07-24-2015, 05:56 PM   #13
Baddflash
Registered User
 
Join Date: May 2015
Location: Edmonton,Alberta, Canada
Posts: 103
Re: 72 c10 starting system

That sounds like it should work but that could change under load. If it were me I would try the jumper cable now.
Baddflash is offline   Reply With Quote
Old 07-24-2015, 05:59 PM   #14
ole truck
Registered User
 
Join Date: Mar 2015
Location: Montgomery
Posts: 15
Re: 72 c10 starting system

Just ground straight from starter housing to negative on batt. Makes sense I will let you know
ole truck is offline   Reply With Quote
Old 07-24-2015, 08:31 PM   #15
hamjet
Registered User
 
hamjet's Avatar
 
Join Date: Apr 2013
Location: South Westerlo, New York
Posts: 1,325
Re: 72 c10 starting system

((((((Negative battery terminal to passenger side frame))))) Try the neg battery terminal to the block...
__________________
Thanks, Joe..
1969 C/10, 348 C.I., 3X2 bbl. V8, 2004r , LWB.
hamjet is offline   Reply With Quote
Old 07-24-2015, 08:40 PM   #16
VetteVet
Msgt USAF Ret

 
VetteVet's Avatar
 
Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,718
Re: 72 c10 starting system

Quote:
Originally Posted by hamjet View Post
((((((Negative battery terminal to passenger side frame))))) Try the neg battery terminal to the block...
Yes the biggest current draw in the truck is the starter so you need to connect negative to the block for the least voltage drop.
__________________
VetteVet

metallic green 67 stepside
74 corvette convertible
1965 Harley sportster
1995 Harley wide glide

Growing old is hell, but it beats the alternative.
VetteVet is offline   Reply With Quote
Old 07-24-2015, 09:59 PM   #17
Andy4639
Old member
 
Andy4639's Avatar
 
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,945
Talking Re: 72 c10 starting system

Battery ground cable always go to the engine block never the frame.

I have added several grounds in my engine bay but the main one is Battery ground to passenger side engine block. I then have #6 cables going from both sides of the engine to frame for assurance.
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver
Seeing the USA in a 71


Upstate SC GM Truck Club
2013,14 and 2016 Hot Rod Pour Tour


http://upstategmtrucks.com/



Get out and drive the truck this summer and have some fun!
It sucks not being able to hear!

LWB trucks rule, if you don't think so measure your SWB!
After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.
Andy4639 is offline   Reply With Quote
Old 07-25-2015, 06:43 AM   #18
ole truck
Registered User
 
Join Date: Mar 2015
Location: Montgomery
Posts: 15
Re: 72 c10 starting system

Fix ground fired right up..don't know what I was thinking. Thanks for all the help. Great website, Great group of people....
ole truck is offline   Reply With Quote
Old 07-25-2015, 03:56 PM   #19
Baddflash
Registered User
 
Join Date: May 2015
Location: Edmonton,Alberta, Canada
Posts: 103
Re: 72 c10 starting system

Glad to hear you got it figured out.
Baddflash is offline   Reply With Quote
Old 07-25-2015, 06:43 PM   #20
Andy4639
Old member
 
Andy4639's Avatar
 
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,945
Thumbs up Re: 72 c10 starting system

Quote:
Originally Posted by ole truck View Post
Fix ground fired right up..don't know what I was thinking. Thanks for all the help. Great website, Great group of people....
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver
Seeing the USA in a 71


Upstate SC GM Truck Club
2013,14 and 2016 Hot Rod Pour Tour


http://upstategmtrucks.com/



Get out and drive the truck this summer and have some fun!
It sucks not being able to hear!

LWB trucks rule, if you don't think so measure your SWB!
After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.
Andy4639 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -4. The time now is 01:14 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com