Mercruiser 165 L6, Fuel pump leaking fuel.

[ttownthomas]

I'm in the process of nursing these 165's back to health. I have replaced the manifolds and risers, cleaned the carbs and finally got the stbd motor running without leaking water. The lack of water allowed me to notice a very large fuel leak. I was planning to replace the fuel lines and all components back to the tank anyway. My question is this: someone replaced the hard fuel line from the pump to the carburetor with a hose. It looks sloppy and dangerously unsupported that way to me. I am inclined to cut and flare a new piece of tubing but Im not sure where to start with figuring out the right hardware and flare types. I have flared brake lines before. I'm assuming that it would use a double flare and some sort of NPT thread?

Its a rochester 2 jet and a mechanical fuel pump.

 

[alldodge]

The nipple going into the pump should be 1/4 npt, and break line works good with double flare.

 

[Bt Doctur]

5/16 steel brake line worked for me from the pump,out 2 inches 90 up, above valve cover 90 over, then 90 to carb.
If you do brake lines you can make fuel lines

 

[kenny nunez]

From the location of the fuel pump the engine appears to be a 292 rather than the original 250. If they are both running good that is a real plus for the overall performance. Check for excess play on the distributor rotor shafts, if so get the distributors rebuilt.

 

[ttownthomas]

From the location of the fuel pump the engine appears to be a 292 rather than the original 250. If they are both running good that is a real plus for the overall performance. Check for excess play on the distributor rotor shafts, if so get the distributors rebuilt.

How can you tell if its a 292 vs a 250?

 

[ttownthomas]

Here is an overall shot of the engine. 292?