Help! 95 5.0 efi ford firing order

[Alarmer1]

I just got this boat so i dont know the history. Engine idled fine on muffs i did find a bad oil pressure switch which was causing it to run in SLOW mode installed new oil switch and decided to do plugs, wires and cap/rotor. now it will not run with what i believe to be the correct firing order (1-3-7-2-6-5-4-8) if i change the firing order to 1-5-4-2-6-3-7-8 it will idle and sound alright but once on the water sputtered/missed once i tried to go over 5-10 mph. I checked the spout connector and tried with it off just to see if it will fire with correct timing order.
What am i missing? The cap and rotor are automotive and not marine, could that be the issue?

95 Chris Craft 21 Concept
engine model # 50FAPHUE

Thanks,
Mike

 

[Scott Danforth]

get a new cap and verify your firing order. there are two for the 5.0, depending on which cam you have in the motor

 

[Alarmer1]

get a new cap and verify your firing order. there are two for the 5.0, depending on which cam you have in the motor

Thanks, How can i find out which cam i have?

 

[Bt Doctur]

Ford Engine Firing Order [302, 5.4, 4.6 390, 5.0, 351] • Road Sumo

See our full guide on the Ford engine firing order. We list the firging order for various Ford engines including the 5.4, 5.0, 302 and more!

roadsumo.com

 

[Scott Danforth]

Thanks, How can i find out which cam i have?

by looking up your serial number and getting the proper manual for it.

 

[Horigan]

It should be listed on the engine on the starboard side, at least it is on mine (same boat). Not near it so can’t look to tell you.

 

[Lou C]

Agreed I wish people starting out with repairing their own boat would make their first purchase:
A factory shop manual!
Yes we can answer questions not answered in shop manuals because they are written for professional mechanics but you must first learn the basics.

 

[Alarmer1]

Agreed I wish people starting out with repairing their own boat would make their first purchase:
A factory shop manual!
Yes we can answer questions not answered in shop manuals because they are written for professional mechanics but you must first learn the basics.

Thanks for your help... The first thing i searched for when i bought this boat was the factory manual (0503167) , it is now out of print and i had to buy a pdf non factory repair manual... Now I'm here looking for some help

 

[Lou C]

There are eBay sellers that have original factory shop manuals and also in that year range the Volvo SX & OMC Cobra were identical products. So if you can’t find an OEM Volvo manual see if you can find one for a 1995 OMC Cobra; the OMC manuals are actually better written and go into more detail.