restoring oil injection? Why was it bypassed?

[JoshMurrah]

ok, so I bought this boat, it's a 900 boat+trailer combo, so y'all know what to expect......

The good news is that it's "all there" and these look like original engines to me based on paint colors and the engine tags still on the blocks.

There's a lot of weirdness going on with fuel and electrical, but the main one I'm worried about, asking about, is that it looks like to me like the oil injection is bypassed - there's a vice grips on the lower oil line (not joking it's in the pic) - why would somebody do this? Can I just replace the lines/oil/gas and fill er up and go?

if you're bored and still reading, check out the cut fuel lines, the loose sender, and the friggin catch can off one of the carbs, I don't even know what that's about... and there's a loose throttle style cable, but it looks like it goes to the other carb or to the oil pump area, clueless about that one. What a project!

 

[burtshaver2021]

Follow the line back to the oil tank. I’m thinking maybe that’s the oil line to the rotary valve and he crimped it because the inner crank seals were leaking, if it goes to the bottom of the oil tank and beneath the rotary valve then that’s what it is. Could also be that he was working in something and just crimped it to keep oil from going everywhere. Is there an oil filter on that line? If yes, then it’s the oil line to the oil pump

 

[mikidymac]

Also all those fuel filters are a disaster waiting to happen too.

 

[JoshMurrah]

The more I dig in, the more I didn’t like things - fuel lines in disarray and original separators gone, half melted in-line gas filters, one is bypassed for oil injection (oil pump cable is disconnected, injection lines to carb blocked) but the other one isn’t - one engine, at least, is vintage original with black oil injection lines with white paint - I’m making the call to stop and pull everything, clean and re-plumb everything and do crank-up rebuilds and put injection back in. From what I’ve seen the rotary valve really has to have injection so I’m not sure bypass is even ok on these - and the oil tank didn’t have anything in it.

I’m gonna leave a fun pic - I’m not sure what is actually melted here, any ideas? - but the battery still had good juice in it haha. It’s probably related to one of the starters being not installed.

 

[burtshaver2021]

I don’t know how experienced you are at restoring these but if you don’t have a lot of experience I’m thinking it might not be a bad idea to consider something not so molested and ragged as this one. Just trying to keep you from getting in to far before you realize that it may be a lost cause. I typically don’t do anything cosmetically until I’ve got the machine running or I will at least inspect t everything well so that I know what I’m getting into before I start. Are you able to crank these engines over to do a compression test? Have you been able to verify that the MPEM is good? The previous owner seems like he may have been a hack. If you have to buy electronics, rebuild fuel lines, carburetor s, fuel system, pistons rings, bore, crankshaft, counter balance shaft, possible jet pump rebuild, you could be in for a pile of money, anyways all I’m saying is try and figure out what it needs before sinking anything into it. Just my opinion. Good luck

 

[JoshMurrah]

I don’t know how experienced you are at restoring these but if you don’t have a lot of experience I’m thinking it might not be a bad idea to consider something not so molested and ragged as this one. Just trying to keep you from getting in to far before you realize that it may be a lost cause. I typically don’t do anything cosmetically until I’ve got the machine running or I will at least inspect t everything well so that I know what I’m getting into before I start. Are you able to crank these engines over to do a compression test? Have you been able to verify that the MPEM is good? The previous owner seems like he may have been a hack. If you have to buy electronics, rebuild fuel lines, carburetor s, fuel system, pistons rings, bore, crankshaft, counter balance shaft, possible jet pump rebuild, you could be in for a pile of money, anyways all I’m saying is try and figure out what it needs before sinking anything into it. Just my opinion. Good luck

I’m in 100% agreement that I’m in for a lot - I bought it as a long term project and don’t expect to come out financially on top - I’m figuring on rebuilding everything too to bottom, about 3k plus another 1k for interior - it doesn’t add up financially but it’s just a fun project and I’ll end up with something much fresher in the end.

The question about the MPEN is a good one and I really don’t know how to test it without rengines I’d trust to run, and I’m not there yet. It there really any to test it without starting engines? I did connect electrical tonight and all of the usual secondary stuff like dash lights and evac fan worked. Horn and buzzer didn’t work not surprised.

 

[burtshaver2021]

I’m in 100% agreement that I’m in for a lot - I bought it as a long term project and don’t expect to come out financially on top - I’m figuring on rebuilding everything too to bottom, about 3k plus another 1k for interior - it doesn’t add up financially but it’s just a fun project and I’ll end up with something much fresher in the end.

The question about the MPEN is a good one and I really don’t know how to test it without rengines I’d trust to run, and I’m not there yet. It there really any to test it without starting engines? I did connect electrical tonight and all of the usual secondary stuff like dash lights and evac fan worked. Horn and buzzer didn’t work not surprised.

If the buzzer was working, if you get the 2 beeps then the mpem recognizes the DESS Key, when I have been purchasing, if the machine will send power to the starter that’s always been good enough for me. There could be more to it, and I may have just been lucky though.

 

[JoshMurrah]

If the buzzer was working, if you get the 2 beeps then the mpem recognizes the DESS Key, when I have been purchasing, if the machine will send power to the starter that’s always been good enough for me. There could be more to it, and I may have just been lucky though.

Oh ok well one of the engines will turn over - so that’s good - I do need to replace the buzzer to make sure tho - I gotta see where the battery cutoff is or add one, before I leave the battery permanently connected tho. I just got the service manual printed last night so I’m about to dig in.