OMC 4.3 V6 fuel pump question

[hogbrains]

My 4.3 has an electrical fuel pump and a mechanical pump. It was cutting out so I checked the fuel filter, then the electrical fuel pump. Both were fine so I checked the mechanical fuel pump and it didn't pump. I removed the mechanical pump and there was no where mark on the pump lever so I looked in the block cavity to check the pump rod. There was no rod and no hole for a rod just an empty cavity.

Anyone have a clue???

 

[Reel Poor]

Re: OMC 4.3 V6 fuel pump question

It sounds like someone has had your boat under the shade tree before.

 

[Gary H NC]

Re: OMC 4.3 V6 fuel pump question

If it has an electric pump then the mechanical pump should be removed and the hole blocked off. Were the lines and everything hooked up to it?

 

[TCM]

Re: OMC 4.3 V6 fuel pump question

I have a near situation. I am doing and engine swap from a truck due to cracked block. The Mech pump has the monting pad on the bock but the hole / pushrod bore is solid and not drilled. Can this be drilled with the engine in Longblock situe or does it need to be taken down to the block?

Thanks

 

[Don S]

Re: OMC 4.3 V6 fuel pump question

TCM
Welcome to iboats.
Please, if you have a question, start a new thread. Don't open some old similar thread. Your post will be lost to those that only answer the original post. Which is most of the posters.

 

[rusty one]

Re: OMC 4.3 V6 fuel pump question

I have seen this pump problem many times before .Never herd of trying to drill this hole .electric pump with a relay grounded threw the oil sender unit.relay runs when engine is cranked then relay off engine oil pressure grounds pump.well something like that