Stuck Starter -- Need Ideas/Help -- Ford 351w

xRUSTYx

Recruit
Joined
Sep 15, 2009
Messages
5
Hey Guys ....

I have a carbed 1987 I/O Ford 351w, and can't seem to resolve these 2 issues.

Issue #1:
We were out on the boat over labor day weekend .... Boat was running beautifully, when all of a sudden, out of the blue going 25-30mph, starter starts to engage randomly .... We immediately brought the boat speed down and the boat cut out. We go to start her back up, same thing happens, so we pull the starter, so we can atleast limp back to the dock.

We figured it was the starter solenoid, so we replaced that and all seemed great. Did a fake lake for 10-15 minutes, ran great, took her back out on the lake, ran good for a little while, shut her down to pick up tubers, go to start back up, and the same issue happens all over again. Starter stays engaged and won't disengage.

We get back to the dock, trailer her up, and drive home. We test everything ... Terminals, both Ignition and Starter .... Thought we may have a bad ignition lock since we could pull the key and engine would continue to run. Replaced it, now it leads to issue #2.

Issue #2:
Seeing as the new starter solenoid did the exact same thing as the old starter solenoid, we popped the old one back on, changed the ignition lock, and went to fire her up to see if the starter would continue to engage. Only this time around, we can't get her to fire. She sounds like she wants to turn over but won't. I see 12.57v at the starter solenoid, so there should be plenty of juice to turn over, its just not happening.

Thoughts guys? Starter is somewhat new ... Only about a year old with likely less than 10-20 hours on her.

I plan to pull the starter to get it bench tested ... Do you feel it could be anything else?

Thanks!
xRUSTYx

EDIT: Other Notes:
1) Battery Terminal Lead from Battery to Starter Solenoid gets AWFULLY hot after just a few cranks trying to start up.
2) Terminals all look clean, free of debris, etc....
 

TowRoper

Petty Officer 1st Class
Joined
Jul 24, 2009
Messages
302
Re: Stuck Starter -- Need Ideas/Help -- Ford 351w

i guess there is a chance that the starter needs shims and is engaging to far in and binding? doesn't explain the random part tho hmmmmm
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,130
Re: Stuck Starter -- Need Ideas/Help -- Ford 351w

1) Battery Terminal Lead from Battery to Starter Solenoid gets AWFULLY hot after just a few cranks trying to start up.

Ayuh,... Resistence causes Heat in electrical wiring,...
I'd say you probably have a Wiring Problem,... Probably more than 1 at that...
 

xRUSTYx

Recruit
Joined
Sep 15, 2009
Messages
5
Re: Stuck Starter -- Need Ideas/Help -- Ford 351w

thanks guys ...

Yeah, I thought it may be a wiring problem too ... thus, I went to my trusty multimeter ... I show continuity through everything that shoot, I show no shorts or weird grounding issues .... everything turned on like it should (power wise) etc....

any other thoughts?
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,130
Re: Stuck Starter -- Need Ideas/Help -- Ford 351w

thus, I went to my trusty multimeter ... I show continuity through everything that shoot, I show no shorts or weird grounding issues .... everything turned on like it should (power wise) etc....

Ayuh,.... Did you get the same results doing the "Shake, Wiggle,+ Pull" Test,..??
The Start Circuit could be picking up power from a frayed, cracked wires touching each other,...
Anywhere from the battery to the key to the starter...

The Hot battery cable says the battery cable, or it's connections are Junk....
 

xRUSTYx

Recruit
Joined
Sep 15, 2009
Messages
5
Re: Stuck Starter -- Need Ideas/Help -- Ford 351w

Shake, Wiggle, Pull (we are talking about the ignition lock, right ?!?!?) haha

Yup ... Wires through the dash look intact and actually quite good. No splits or loose ends. Terminals also look good (replaced 2).

Battery terminals and cable look fairly new (i would say less than 2-3 years old) Shoot, the rubber boots are still in tact ... that says something ;) LOL

You think the battery could be the culprit? Amperage drop might cause it to get hot ??? yay or nay ?
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,130
Re: Stuck Starter -- Need Ideas/Help -- Ford 351w

(we are talking about the ignition lock, right ?!?!?)

"Anywhere from the battery to the key to the starter..."

Nope,.... All of the wiring is suspect.... It's a 20 years old tub...

I Assumed you had a decent Battery,... If it Ain't,.... well,.. it Ain't.... Load test it...
 
Top