Will this fuel pump fit and work?..pics

fishermanms

Petty Officer 2nd Class
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Jul 8, 2007
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I ordered a new fuel pump from iboats for a 1974 Johnson 6hp model 6R74-C.
They both look pretty much the same. The one I ordered said it fit 6hp Johnson 1992 and earlier. It also said it replaced OMC and after that four different part numbers. Im not sure what the part number is on my original, it had several different numbers on it. But anyway I got the one I ordered and the housing on the back of it but just where the bolts come thru is thicker than the other. If I take out the two bolts that hold it togeather and turn it and put the bolts back in it should fit. But I will need longer bolts. There will be plenty of room for the pump. Can I do this??? Here are pics of the two pumps. The one with the thicker back housing is the new one...TY
Fishermanms

fuelpump 3.jpg
 

Joe Reeves

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Re: Will this fuel pump fit and work?..pics

The original part number for that fuel pump is 386834 and is superseded up to 388685. You can use either number. Any other number..... you have the wrong fuel pump.
 

fishermanms

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Re: Will this fuel pump fit and work?..pics

I appreciate your response Joe. I checked here at iboats and they dont have it. Nor do they have the pump kit. Guess I will look elsewhere. Dang... This new one looks idenical from the top side. Its just the housing that is different. Guess I will just have to return this one. ...Well thanks for the advice... Fishermanms
 

F_R

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Re: Will this fuel pump fit and work?..pics

Don't take it apart. However, if it will go on the motor (with longer screws) and the hose fittings not interfere with anything, it will work. You can remove and turn the big hose plastic cap (filter cover). So that leaves the little hose. If you can re-route it, you are hot to go.
 

fishermanms

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Re: Will this fuel pump fit and work?..pics

Imported FR,

Man... That is great information. I have looked all over the web and could not find another pump. And I was really getting depressed about having to send this one back. No problem with the big fitting, turning it will fit just fine. Rerouting the smaller one...no problem what so ever. THANK YOU KINDLY!!:)
One Relieved Fishermanms
 

fishermanms

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Re: Will this fuel pump fit and work?..pics

I got the pump on with longer bolts, ( I had to cut two 2" down to about 1 3/4", turned the big gas line toward the incoming gas line, the small one going to the carb is on top. A pic of it is below, click on it and look... My question is.. Will the gas flow to the carb as it should ??? It will be pumping up and then down as you can see and before it was pumping staight out (horizonal) toward the carb...Fishermanms

newfuel p 000.jpg
 

wbeaton

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Jul 30, 2006
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2,332
Re: Will this fuel pump fit and work?..pics

Yes, it will still work. If it can pump gas all the way up from your tank it'll be able to pump it to your carb.
 

F_R

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Re: Will this fuel pump fit and work?..pics

Agreed, it will work just fine. The gas will go wherever the hose goes, it doesn't care what route it takes to get there.
 

fishermanms

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Re: Will this fuel pump fit and work?..pics

Thanks for the comments. Now I can move on around to the carb. I have been in the process of removing it to do the rebuild... Yep, Its been a slow go. But, I'm in no hurry and I'm enjoying this little project and learning a lot about this little engine before I even get to use it.
Now... About removing that carb. I had to read a lot of other stuff in a different chapter on the hand starter... type 1. Removing the the nut on the left side, no problem. But the nut on the right is almost impossible to get to without removing the cylinder from the starter. I remember what happened when I attempted to fix the garage door ( the big huge spring loaded cylinder up top). Crap flew everywhere. I think (is this right or will it work?), that if I pull the cord out most of the way, secure the cylinder so that it dont move, remove the pull handle, then pull the rope thru the housing, remove the rope, let the cylinder slowly unwind itself, remove the top two bolts, LOOSEN the bottom two bolts and then slide the cylinder up and off the shaft.... Then I can get to the linkage screw and the other nut on the right ?????? SOmething like that I think????? Does all this make any sense? Because thats the way I read it. Thanks... Fishermanms
 

wbeaton

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Re: Will this fuel pump fit and work?..pics

Sorry, I can't help you with that particular starter. That's the one style I haven't worked on before. I do know that on the 9.9/15 hp (which is set up the same, but with a different starter) you have to take the starter off to get to the carb nut.

In that case, I do it the lazy way so I don't have to rewind the spring. I pull the rope out a bit and tie a loose knot in it so it can't go back into the cowling and then I remove the pull handle. Undo the top bolt that holds the starter in place. Holding the starter tight, I remove it and give it a wrap with duct tape so it can't rewind. Undo the knot and remove it from the motor. There is probably an easier way, but that one works well for me. I'm not sure if you can do that with your starter or not.
 

F_R

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Re: Will this fuel pump fit and work?..pics

fishermanms, it sounds like you have done your homework and read the book, right? Because that is about the way it is supposed to be done.

Wanna know a secret? There is an easier way. Simply remove the two bolts from the top bearing plate, carefully lift the spool just high enough for it to come out of the bottom bearing plate (about 1/4"), and tilt it to the side just far enough to remove the carb nut. The spring will still be under tension and will not fly out unless you lift it way too high. Set it back down into the lower bearing and stick one of the bolts back in to hold it while you are working on the carb. I've done it this way many times and have never had a problem.
 

fishermanms

Petty Officer 2nd Class
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Messages
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Re: Will this fuel pump fit and work?..pics

Well... That was about as easy as taking tha cowl off.. Both procedures would work... but I took tha latter one, ( a lil secret that is easy as pie). Took all of about less than 5 minutes. Removed the top two 8mm bolts, slipped on a lil skinny long 1/4" extension on my rachet, barely loosen tha bottom bolts, tilted tha cylinder forward just enough to get my lil skinny 7/16" wrench to tha carb nut, losen it up, spung it off, grapped my lil magnet and poked it down in there and retrieved tha nut, then resecured tha cylinder till I'm ready to put tha carb back on.... AGAIN, MY MANY THANKS FOR ALL YOUR HELP!!:)
Now I can clean up tha carb, every crack and cranny and rebuild it...........Fishermanms
 
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