Friends of the Professional Car Society - Official Website of the Professional Car Society, Inc.Friends of the Professional Car Society - Official Website of the Professional Car Society, Inc.



Go Back   Friends of the Professional Car Society - Official Website of the Professional Car Society, Inc. > Professional Car Discussion > Technical Discussion Forum

Technical Discussion Forum For the discussion of technical questions about Professional Cars and their repair and maintenance. Posting in this forum is limited to PCS Members and / or Site Supporters. We encourage all website users to become members of the Professional Car Society and / or become Site Supporter.

Reply
 
Thread Tools Display Modes
  #1  
Old 09-16-2020, 01:16 PM
Dustin Dial's Avatar
Dustin Dial Dustin Dial is online now
PCS Member
 
Join Date: Sep 2020
Location: Tucson AZ 85741
Posts: 13
Thanks: 4
Thanked 23 Times in 6 Posts
Groans: 0
Groaned at 0 Times in 0 Posts
Default 1970 Olds 98 Ambulance No Crank No Start

Thanks for the add guys, I'm new to car restoring but I've already gotten some fantastic Advice here. So I'm new to oldsmobiles and I just purchased a 1970 oldsmobile 98 Cotner Bevington ambulance.

Its been sitting for years, and I am not a mechanic, learning as I go (got to start somewhere right?) So, it came without a battery, so I am unsure where exactly to connect to the positive and the negative wires coming off the new one I put in to see i I can get some kind of sign of life. ALSO, the car sat for years with the key stuck in the ON position. I replaced the Key cylinder, and it turns fine now. So far, still no crank/start. Any pics of similar engines, especially the Solenoids on the side wall would be appreciated! I'm wondering if the Solenoids are bad (which I read can happen when a key is left in On position), or I have the positive cable hooked up wrong.
Dustin

New battery

New positive cable hooked onto a post with another positive came that looks like it goes nder the enging maybe to the starter?
Reply With Quote
  #2  
Old 09-16-2020, 06:06 PM
Daniel Scully's Avatar
Daniel Scully Daniel Scully is online now
PCS Member
 
Join Date: Mar 2009
Location: Apple Valley CA 92308
Posts: 1,455
Thanks: 1,796
Thanked 3,117 Times in 1,229 Posts
Groans: 0
Groaned at 0 Times in 0 Posts
Default 1970 Olds 98 Ambulance No Crank No Start

The pos cable usually goes directly to the starter. Some had a junction on the fender well. If you have a factory service manual it will show what goes where. Or you can buy ones of these diagrams that are color coded and made for your specific vehicle. Those solenoids on the fender are probably just for accessory's , light , radios etc. Its tough sometimes to diagnose electrical long distance.


https://www.classiccarwiring.com/194...e-88-98-delta/
__________________
Current Pro Cars and Some Others

1961 S&S Limo Style End Loader
1962 Buick Electra 225 Limo (By Flxible)
1965 C/B Landau
1968 Crown Royale 3-way
1975 M-M Criterion
1996 Eagle Coupe de Fleur

1964 Dodge 880 Hardtop Wagon
1973 VW Thing
1968 A-100 Truck
1970 300 Convertible
Reply With Quote
  #3  
Old 09-16-2020, 06:53 PM
Daniel Scully's Avatar
Daniel Scully Daniel Scully is online now
PCS Member
 
Join Date: Mar 2009
Location: Apple Valley CA 92308
Posts: 1,455
Thanks: 1,796
Thanked 3,117 Times in 1,229 Posts
Groans: 0
Groaned at 0 Times in 0 Posts
Default 1970 Olds 98 Ambulance No Crank No Start

After looking at your pics again I see a relay by the battery. With out looking at a diagram it looks the pos battery goes to it , then another cable goes from there down to the starter. The other wires from that stud will be power for most of the stock items , feeding the fuse box etc.
__________________
Current Pro Cars and Some Others

1961 S&S Limo Style End Loader
1962 Buick Electra 225 Limo (By Flxible)
1965 C/B Landau
1968 Crown Royale 3-way
1975 M-M Criterion
1996 Eagle Coupe de Fleur

1964 Dodge 880 Hardtop Wagon
1973 VW Thing
1968 A-100 Truck
1970 300 Convertible
Reply With Quote
  #4  
Old 09-16-2020, 08:29 PM
Walter Suiter Walter Suiter is offline
Website Member
 
Join Date: Apr 2017
Location: Rochester NY 14612
Posts: 291
Thanks: 3
Thanked 337 Times in 147 Posts
Groans: 0
Groaned at 0 Times in 0 Posts
Default

1970 is definitely Neg to body +Pos to the starter.

Quick & dirty on top post batterys, the + terminal is larger diameter than the Neg terminal. Been that way since 6 volt systems.
Reply With Quote
  #5  
Old 09-16-2020, 10:46 PM
John ED Renstrom's Avatar
John ED Renstrom John ED Renstrom is offline
PCS Member - Elected Director 2017-2020
 
Join Date: Mar 2009
Location: Hot Springs SD 57747
Posts: 12,150
Thanks: 4,433
Thanked 15,996 Times in 6,750 Posts
Groans: 2
Groaned at 3 Times in 3 Posts
Default

If the cable hoes down to the starter then its wired direct to the starter. No start is most likely the neutral safety switch. Easy way to check it to short the + post on the starter to the starter selanonade. If it takes off its most likely the that safety switch. If not its starter problems.. They parked it for a reasion.
__________________
drop in for coffee anytime
Reply With Quote
  #6  
Old 09-17-2020, 02:40 AM
Walter Suiter Walter Suiter is offline
Website Member
 
Join Date: Apr 2017
Location: Rochester NY 14612
Posts: 291
Thanks: 3
Thanked 337 Times in 147 Posts
Groans: 0
Groaned at 0 Times in 0 Posts
Default

Good point on the famed PRNDL effect. Tow truck driver I know loves driving warranty cars onto his flatbed after he winds em up in Neutal.
Says it really annoys the car owner when they watch him do it.
Reply With Quote
  #7  
Old 09-18-2020, 06:39 PM
Dustin Dial's Avatar
Dustin Dial Dustin Dial is online now
PCS Member
 
Join Date: Sep 2020
Location: Tucson AZ 85741
Posts: 13
Thanks: 4
Thanked 23 Times in 6 Posts
Groans: 0
Groaned at 0 Times in 0 Posts
Default

Quote:
Originally Posted by Walter Suiter View Post
Good point on the famed PRNDL effect. Tow truck driver I know loves driving warranty cars onto his flatbed after he winds em up in Neutal.
Says it really annoys the car owner when they watch him do it.

What is the "famed PRNDL effect?"

Remember new guy here! lol
Reply With Quote
  #8  
Old 09-18-2020, 06:41 PM
Dustin Dial's Avatar
Dustin Dial Dustin Dial is online now
PCS Member
 
Join Date: Sep 2020
Location: Tucson AZ 85741
Posts: 13
Thanks: 4
Thanked 23 Times in 6 Posts
Groans: 0
Groaned at 0 Times in 0 Posts
Default

Quote:
Originally Posted by John ED Renstrom View Post
If the cable hoes down to the starter then its wired direct to the starter. No start is most likely the neutral safety switch. Easy way to check it to short the + post on the starter to the starter selanonade. If it takes off its most likely the that safety switch. If not its starter problems.. They parked it for a reasion.

Ok, what/where is the "neutral safety switch"?
Reply With Quote
  #9  
Old 09-18-2020, 11:03 PM
Paul Steinberg Paul Steinberg is offline
PCS President / Senior Website Administrator
 
Join Date: Mar 2009
Location: Woodstock CT 06281
Posts: 6,824
Thanks: 7,930
Thanked 13,138 Times in 4,290 Posts
Groans: 0
Groaned at 9 Times in 9 Posts
Default

The neutral safety switch is located on the steering column, however, you have to first establish it the car is getting current from the battery. I would start by turning on the headlights and see if they illuminate. If they don't, then you have to figure out why the current isn't flowing to the car. The starter solenoid is located on the top of the starter. You can check the large wire that goes to the starter for current, since it should be live all the time. There are 2 small terminals on the solenoid, and one goes to the ignition switch, and the other goes to the ignition coil.
Reply With Quote
The Following User Says Thank You to Paul Steinberg For This Useful Post:
Dustin Dial (09-19-2020)
  #10  
Old 09-18-2020, 11:42 PM
John ED Renstrom's Avatar
John ED Renstrom John ED Renstrom is offline
PCS Member - Elected Director 2017-2020
 
Join Date: Mar 2009
Location: Hot Springs SD 57747
Posts: 12,150
Thanks: 4,433
Thanked 15,996 Times in 6,750 Posts
Groans: 2
Groaned at 3 Times in 3 Posts
Default

They will be large wires two in a clip. Once you know you have power to the ignition switch if you can't get power to the starter you can jump those wires togathe but remember it will now start in gear so be carfull its in park.
__________________
drop in for coffee anytime
Reply With Quote
The Following User Says Thank You to John ED Renstrom For This Useful Post:
Dustin Dial (09-19-2020)
Reply

Thread Tools
Display Modes

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
'64 Caddy Ambulance chases '64 Olds Ambulance Paul Steinberg General Discussion Forum 5 08-08-2017 08:07 PM
Why does it crank so slow... Richard Vyse Technical Discussion Forum 55 07-17-2017 10:45 AM
Want to start your own ambulance company? Paul Steinberg General Discussion Forum 4 04-28-2016 10:24 PM
A casket crank can be handy Danny Ryder General Discussion Forum 15 03-25-2013 11:55 AM


All times are GMT -4. The time now is 02:33 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2020, vBulletin Solutions, Inc.