Reply
 
Thread Tools Search this Thread Display Modes
 
Old 05-15-2022, 09:43 AM   #1
Veteran Member
 
City: Bayshore
Join Date: Aug 2014
Posts: 35
Ford Lehman 120 not starting

I did some rewiring over winter and went to start my engine, it turned on but my tack was not working and oil and water gauges where pinned to max. I shut engine of disconnect some wires started her back up and went to engine room, i then shut her off with the shut off lever on engine, now she wonít crank, for the life of me I cannot figure out what is wrong,
jpar1972 is offline   Reply With Quote
Old 05-15-2022, 10:15 AM   #2
Guru
 
psneeld's Avatar
 
City: Ft Pierce
Vessel Name: Sold
Vessel Model: Was an Albin 40
Join Date: Oct 2011
Posts: 25,482
Go to this thread, post 2 has the wiring schematic.

https://www.trawlerforum.com/forums/...ess-59325.html

Make sure yours does the same.
psneeld is offline   Reply With Quote
Old 05-15-2022, 10:20 AM   #3
Guru
 
jleonard's Avatar
 
Join Date: Jun 2008
Posts: 4,608
I'll just post it again here. And yes, It came from ADC.
Attached Files
File Type: pdf FordLehmanEngineElectricSchematic.pdf (49.9 KB, 50 views)
__________________
Jay Leonard

New Port Richey,Fl
jleonard is offline   Reply With Quote
Old 05-15-2022, 10:30 AM   #4
Guru
 
rochepoint's Avatar
 
City: Sidney BC Canada
Vessel Name: RochePoint
Vessel Model: 1985 Cheer Men PT38 Sedan
Join Date: Apr 2009
Posts: 1,700
If it is like my boat it won't start unless it is in neutral on the gear shift, maybe you accidentally moved the shifter, just a thought........
__________________
Cheers
Mike
rochepoint is offline   Reply With Quote
Old 05-15-2022, 10:58 AM   #5
Veteran Member
 
City: Bayshore
Join Date: Aug 2014
Posts: 35
I tried the shifter and nothing, also my starter does not have any wire from ignition key to solenoid. I donít know if itís something to do with the stop lever on engine?
jpar1972 is offline   Reply With Quote
Old 05-15-2022, 11:04 AM   #6
Guru
 
psneeld's Avatar
 
City: Ft Pierce
Vessel Name: Sold
Vessel Model: Was an Albin 40
Join Date: Oct 2011
Posts: 25,482
Pretty hard to diagnose what is wrong when you rewired, then took off some wires and one of your solenoids doesn't have a wire to it..

Can you take the diagrams linked above and show what wires you have?
psneeld is offline   Reply With Quote
Old 05-15-2022, 12:33 PM   #7
Guru
 
City: Boston
Vessel Name: Adelante
Vessel Model: IG 30
Join Date: Nov 2016
Posts: 1,410
Quote:
Originally Posted by jpar1972 View Post
I tried the shifter and nothing, also my starter does not have any wire from ignition key to solenoid. I don’t know if it’s something to do with the stop lever on engine?
Wire from ignition should go to small helper relay, then to starter solenoid.
Stop solenoids van get stuck in either position but will usually work with manual assist. 3N1 oil on the shaft may help. You might have disconnected a critical ground.

The wiring to a lehman is basic but PO's may have created a spaghetti nest under the dash so debugging an electrical issue can be a real pain. Reconnect everything and start over by removing wires one at a time.
SoWhat is offline   Reply With Quote
Old 05-15-2022, 01:55 PM   #8
Veteran Member
 
City: Bayshore
Join Date: Aug 2014
Posts: 35
It was working until I shut it off from engine,
jpar1972 is offline   Reply With Quote
Old 05-15-2022, 02:28 PM   #9
Enigma
 
RT Firefly's Avatar
 
City: Slicker?
Join Date: Oct 2007
Posts: 15,360
Greetings,
Mr. jp. Seems the last thing you touched was the stop solenoid. Is there any way to bypass that and try again?
__________________
RTF
RT Firefly is offline   Reply With Quote
Old 05-15-2022, 02:48 PM   #10
Veteran Member
 
City: Bayshore
Join Date: Aug 2014
Posts: 35
Thatís what I want to get answers or ideas on
jpar1972 is offline   Reply With Quote
Old 05-15-2022, 03:27 PM   #11
Guru
 
psneeld's Avatar
 
City: Ft Pierce
Vessel Name: Sold
Vessel Model: Was an Albin 40
Join Date: Oct 2011
Posts: 25,482
If you manually shut off the engine by handling the stop solenoid the shutoff rack inside the fuel pump may have stuck shut.

Not sure how you release it, I know it has been discussed here before.

But that should not prevent the engine from cranking as far as I know, it just wont start. Noyhing about the shut off lever or stop solenoid should prevent cranking.

Are there any fuses/breakers in any of the ignition circuits?
psneeld is offline   Reply With Quote
Old 05-15-2022, 03:52 PM   #12
Veteran Member
 
City: Bayshore
Join Date: Aug 2014
Posts: 35
I have to look for o e
jpar1972 is offline   Reply With Quote
Old 05-15-2022, 04:30 PM   #13
Guru
 
City: Boston
Vessel Name: Adelante
Vessel Model: IG 30
Join Date: Nov 2016
Posts: 1,410
Quote:
Originally Posted by RT Firefly View Post
Greetings,
Mr. jp. Seems the last thing you touched was the stop solenoid. Is there any way to bypass that and try again?
Stop solenoid shuts off the fuel. If it is stuck in shutoff position you can manually push lever back. If totally jammed, engine might start but would quickly run out of fuel. The engine starter will work no matter what position stop solenoid is in.

Lehman starter wiring is very simple and diagnosing a non start is a quick process with a voltmeter. If engine is not cranking at all, and the starter solenoid is not clicking or spinning, and it is getting 12V, then you have a bad starter/solenoid. Same with helper relay or ignition switch. If you don't have a voltmeter then use jumper cables direct to the starter.

I suspect a disconnected wire but relays and solenoids can fail at any time.
SoWhat is offline   Reply With Quote
Old 05-15-2022, 08:28 PM   #14
Senior Member
 
City: Punta Gorda, Florida
Vessel Name: Salty
Vessel Model: Fu Hwa 34 Europa
Join Date: Jul 2015
Posts: 209
On mine there is a red wire going from solenoid to starter. When I am in engine area I have had that wire come loose and starter will not turn without it. Check solenoid to starter wiring very carefully to be sure all are connected

John
Capt Jack is offline   Reply With Quote
Old 05-16-2022, 03:51 AM   #15
Veteran Member
 
City: Bayshore
Join Date: Aug 2014
Posts: 35
I will
jpar1972 is offline   Reply With Quote
Old 05-16-2022, 06:39 AM   #16
Guru
 
jleonard's Avatar
 
Join Date: Jun 2008
Posts: 4,608
Pic of starter and relay
Attached Thumbnails
IMG_1408.jpg  
__________________
Jay Leonard

New Port Richey,Fl
jleonard is offline   Reply With Quote
Old 05-16-2022, 07:39 AM   #17
Guru
 
psneeld's Avatar
 
City: Ft Pierce
Vessel Name: Sold
Vessel Model: Was an Albin 40
Join Date: Oct 2011
Posts: 25,482
Quote:
Originally Posted by jleonard View Post
Pic of starter and relay
Interesting Jay.... mine was bolted to the side of the engine almost hidden by the air intake filter.

Seem there are a lot of variations to where the pieces and parts are on these engines, but schematics for the systems are generally accurate enough to trace connections between components.
psneeld is offline   Reply With Quote
Old 05-16-2022, 02:26 PM   #18
Guru
 
jleonard's Avatar
 
Join Date: Jun 2008
Posts: 4,608
Looking at my picture again made me think of something. Just went into my garage and verified that I still have a new spare relay. LOL Generic old school automotive relay like I had on my 63 Falcon.
__________________
Jay Leonard

New Port Richey,Fl
jleonard is offline   Reply With Quote
Old 05-16-2022, 04:02 PM   #19
Guru
 
KnotYet's Avatar
 
City: Los Angeles
Join Date: Feb 2020
Posts: 813
Quote:
Originally Posted by jleonard View Post
Looking at my picture again made me think of something. Just went into my garage and verified that I still have a new spare relay. LOL Generic old school automotive relay like I had on my 63 Falcon.
Yes, looks like the one on our '65 Mustang, too.
Your arrangement looks redundant, though, in that there is a solenoid that appears
to only be switching the signal to the starter solenoid so really any 12v relay could
be used to do that including bypassing the solenoid and connecting the white wire
directly to the starter solenoid. That would give you one less potential failure point.
__________________
Science doesn't care what you believe. -Neil deGrasse Tyson
KnotYet is offline   Reply With Quote
Old 05-16-2022, 06:03 PM   #20
Guru
 
City: Boston
Vessel Name: Adelante
Vessel Model: IG 30
Join Date: Nov 2016
Posts: 1,410
Quote:
Originally Posted by jleonard View Post
LOL Generic old school automotive relay like I had on my 63 Falcon.
Yes. Bob Smith added the 12V relay so he could use smaller gauge wire from ignition switch to starter solenoid. Old school but pretty robust.
SoWhat is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Trawler Port Captains
Port Captains are TF volunteers who can serve as local guides or assist with local arrangements and information. Search below to locate Port Captains near your destination. To learn more about this program read here: TF Port Captain Program





All times are GMT -5. The time now is 02:07 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2022, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012