Author Topic: Jet Boat Engine Harness Diagrams (Read 7867 times)

Jetaholic · « **on:** December 28, 2007, 06:13:27 PM »

Here are 4 different engine harness diagrams, complete with wire gauge and colors.

Two of them show points ignition w/1 wire and 3 wire alternators.

The other two show HEI ignition w/1 wire and 3 wire alternators.

If you're using an aftermarket ignition such as an MSD, be sure and follow their instructions for wiring the box to the distributor.

If you're using an MSD R2R distributor by itself:
Black = Ground
Red = Ignition Hot & (+) terminal of coil
Orange = Tach Signal & (-) terminal of coil
No ballast resistor required

FORKEDUP · « **Reply #1 on:** December 29, 2007, 10:44:57 PM »

i think you answered a question i was getting ready to ask, i have never run an alternator before and am installing a one wire type, i am not running an aux solenoid so the wire would just run to the solenoid on the starter, right??, sorry if this is a dumb question, but i have never run an alternator in my boat before

propless · « **Reply #2 on:** December 29, 2007, 11:15:58 PM »

Yes, a one wire alternator conects to constant 12v. The battery cable on the starter solenoid is a good place.

Jetaholic · « **Reply #3 on:** December 29, 2007, 11:45:26 PM »

Quote from: FORKEDUP on December 29, 2007, 10:44:57 PM

i think you answered a question i was getting ready to ask, i have never run an alternator before and am installing a one wire type, i am not running an aux solenoid so the wire would just run to the solenoid on the starter, right??, sorry if this is a dumb question, but i have never run an alternator in my boat before

Yeah you can run it to the point where the positive battery cable connects to the back of the starter....

Or you can connect it direct to the + terminal of the battery if you want also.

However, honestly I highly recommend the aux solenoid for reasons mentioned in my article regarding aux solenoids.

GAWnCA · « **Reply #4 on:** December 29, 2007, 11:57:25 PM »

So, Jet, where do you get the best deal on the aux solenoid? and is there nay particular size requirement?

Jetaholic · « **Reply #5 on:** December 30, 2007, 12:01:58 AM »

Quote from: GAWnCA on December 29, 2007, 11:57:25 PM

So, Jet, where do you get the best deal on the aux solenoid? and is there nay particular size requirement?

Just go to any auto parts store and buy a solenoid for any Ford truck. Shouldn't be any more than about $20.

GAWnCA · « **Reply #6 on:** December 30, 2007, 12:34:00 AM »

Thanks. I've got to put in an order with Summit anyway so I'll check them out.

fixxzilla · « **Reply #7 on:** April 23, 2008, 10:17:44 PM »

hey these are sweet i need these diagrams but it wont save on my pc

crewchief22 · « **Reply #8 on:** April 24, 2008, 05:44:34 AM »

I haven't tried saving on my computer, but I did print one out and use it while going through some of the wiring

Brad @ SCJB · « **Reply #9 on:** April 24, 2008, 06:47:59 AM »

Quote from: fixxzilla on April 23, 2008, 10:17:44 PM

hey these are sweet i need these diagrams but it wont save on my pc

you can do it, its just a little tricky.

right click on the image, select propertys. highlight and copy (ctrl + c) the address (url). paste it (ctrl + v) into your web browser address bar......now right click on the image and select 'save as...'

im not sure why it does that, i just havent had the time to look into it.

gregb · « **Reply #10 on:** April 24, 2008, 03:21:32 PM »

If you use a Ford solenoid I don't think you want to ground that second small connection, that one usually goes to the coil so it get's voltage while cranking and is hot while the solenoid is energized, the solenoid grounds through the bolts that hold it to the firewall. There are some solenoids, I usually see them in motorhome applications, that use that for completeing the circuit, but the standard Ford starter solenoid isn't one of them.

beerjet · « **Reply #11 on:** April 24, 2008, 05:06:18 PM »

I got a rubber coated one

http://www.eddiemarine.com/store/cart.php?m=product_detail&p=13482&c=98

-beerjet-

2savage4you · « **Reply #12 on:** April 24, 2008, 05:11:15 PM »

Do Chebby's need a solenoid? Ive never seen one on any of my trucks , and im getting ready to wire a BBC HAHAHA not a FORD

Yeah Baby............do they?

2sav

beerjet · « **Reply #13 on:** April 24, 2008, 07:15:08 PM »

Quote from: 2savage4you on April 24, 2008, 05:11:15 PM

Do Chebby's need a solenoid? Ive never seen one on any of my trucks , and im getting ready to wire a BBC HAHAHA not a FORD

Yeah Baby............do they?

2sav

No they dont NEED one but it's cheaper to replace one of those $16 parts than a starter .

-beerjet-

skee · « **Reply #14 on:** April 24, 2008, 09:05:27 PM »

Quote from: 2savage4you on Today at 05:11:15 PM
Do Chebby's need a solenoid? Ive never seen one on any of my trucks , and im getting ready to wire a BBC HAHAHA not a FORD

Yeah Baby............do they?

2sav

No they dont NEED one but it's cheaper to replace one of those $16 parts than a starter .

-beerjet-

Thats right,beerjet!

Well kinda...isnt there's BUILT into the starter?

So when your solenoid goes out,as you said....you have to REPLACE THE STARTER!

Hey 2sav...where's the common sense in that?

OH YEAH.....your a "chebby" guy!! They dont have any! LMFAO!
Jus kiddin' here chebby guy's.....dont get yer panties in a bunch!

For
Oustanding
River
Driving!

hotrod56cars · « **Reply #15 on:** April 24, 2008, 10:42:17 PM »

Quote from: skee on April 24, 2008, 09:05:27 PM

Quote from: 2savage4you on Today at 05:11:15 PM
Do Chebby's need a solenoid? Ive never seen one on any of my trucks , and im getting ready to wire a BBC HAHAHA not a FORD

Yeah Baby............do they?

2sav

No they dont NEED one but it's cheaper to replace one of those $16 parts than a starter .

-beerjet-

Thats right,beerjet! Well kinda...isnt there's BUILT into the starter? So when your solenoid goes out,as you said....you have to REPLACE THE STARTER! Hey 2sav...where's the common sense in that? OH YEAH.....your a "chebby" guy!! They dont have any! LMFAO!
Jus kiddin' here chebby guy's.....dont get yer panties in a bunch!

For
Oustanding
River
Driving!

We have a thread for that, it's called Ford vs. Chevy.

Read through that thread and cry me a... I mean call me in the morning.

J/K

429heads · « **Reply #16 on:** April 24, 2008, 11:06:22 PM »

DESECRATING A CHEV BY RUNNING A FORD PART TO MAKE YOUR CHEV START

.... FOR THOSE OUT THERE WHO WOULD LIKE TO KNOW HOW TO WIRE A SOLENOID THE RIGHEIOUS WAY LIFT THE HOOD ON A FORD CAR OR TRUCK YOU WILL SEE THE POWER SIDE HAS THE BATTERY SIDE ON ONE SIDE AND OTHER SIDE IS THE STARTER SIDE SEPARATION OF POWER FORD HAS WIRED THERE CARS AND TRUCKS THIS WAY FOR OVER 60 YEARS. YOU CAN WIRE YOU STARTER WITH ONE CABLE GOING TO STARTER WITH JUMPER WIRE AT STARTER TO ENERGIZE STARTER NO POWER AT STARTER EXCEPT WHEN SOLENOID IS ENGAGED NO EXTRA WIRE RUNNING TO STARTER. MY CHEV IS WIRED LIKE A CHEV I DON'T DESECRATE A FORD PART TO MAKE MY CHEV START IN MY FLAT BOTTOM IT STARTS WITH ONE PUSH OF STARTER BUTTON.
I new that chev guys where wired strange

large print easy to read second time

itsajesusthang · « **Reply #17 on:** May 13, 2009, 08:11:57 PM »

hes got a good point there on the chvy starter i hate havin to wirethe thing befor i put it in lol ford is1 wire and ya cant drop the nut couse its big enuf to hold and ifya doo drop it you can findit lol. For Out Runnin Dumbasses

povertyjet · « **Reply #18 on:** May 14, 2009, 04:27:50 AM »

Don,t worry Chevy boys...GM copied Ford and made one identical for their motorhome chasis. Put this up before but here is the wiring diagram...

Napa/Echlin #ST81

p-jet

maddogg20 · « **Reply #19 on:** May 15, 2009, 11:18:48 PM »

lol I just burned up my new starter trying to get my damn engine to start, hehehe imma try again tomorrow. :-)

Willow Wog · « **Reply #20 on:** March 14, 2010, 12:26:17 PM »

So im rewireing the boat today from the dash back and have a question. On the wireing block on the back of the motor there is a wire thats tagged alt. Why would that need to go to the dash? shouldn't that go to a constant 12v like off of the starter solenoid?

ROMPERSTOMPER · « **Reply #21 on:** March 14, 2010, 01:32:54 PM »

I have a push button soleniod and a billet mount that bolts to the back of the head for a bbc. I'm Not using it anymore. no room. make me an offer I cant refuse and its yours.

Willow Wog · « **Reply #22 on:** March 15, 2010, 05:22:03 AM »

Anyone? Im trying to leave on thursday for the avi. and don't dont want it to not be charging.

Brad @ SCJB · « **Reply #23 on:** March 15, 2010, 06:46:38 AM »

where does it currently go to on the dash?

ROMPERSTOMPER · « **Reply #24 on:** March 15, 2010, 11:20:10 AM »

voltage meeter. I think. I have the diagram for that harness. I can check it out when I get home.