Dan sorry no I dont I have never rebuilt one I happen to have 2 spares on my boat that were there when I bought the boat. I have contemplated buying a couple of rebuild kits and rebuilding 2 of them for known good spares. But I have never taken any of them apart. I didi find this for the Carter X pump on the old Ford 428's I would guess it is close the difference is most marine pumps are dual diaphragm pump.
Guys, due to the liability associated with rebuilding an old marine pump, and the chance that the old parts you are able to find from dubious sources are in fact, marine grade, perhaps marine grade way back in the 1960s but no longer, or your own workmanship may not be commensurate with the present day marine safety requirements, the official recommendation of this forum is "don't do it", and "buy a new USCG safety conforming fuel pump".
In addition, if you rebuild a fuel pump that is old enough to not have the bypass, then you are intentionally not in compliance with present day safety requirements, and that is not a good idea for several reasons. You may not even be using marine grade internals. The box may say "marine grade" but that box may be from a different era.
If you elect to rebuild a fuel pump on your own, you assume the risk and all liability for the consequences, and they can be severe. In short, you can incinerate yourself and all your friends if things go wrong.
Would I rebuild one for my MF-135 tractor? Sure, I would attempt to save a few bucks. When I recommissioned my 327F I didn't even test the pump, I pulled it out and promptly bought a new marine grade pump. I didn't want the unknown factor to ever enter into my boating pleasure or safety.
Personally, I would not know the difference between a 1960s marine diaphragm and a new one if I saw it. Therefore, the safety word of the day, is to buy a marine pump from a reputable source, and find other ways to save money!
Hope I didn't offend anyone with this post, but fuel handling is very serious and rebuilding old or non-conforming fuel pumps is NOT a good idea, nor is it endorsed by The Forum.
Paul I am sorry but I must disagree there is NO source for a 350 Q fuel pump NONE they are no longer made. That pump had a custom actuator arm and travel that no other pump has had since. Now the only other choice are Electric fuel pumps which in my opinion pose way more hazard than any manual fuel pump. The idea of associating electricity with fuel just goes against my grain. Robert Henkel in Mi can get the rebuild kits to this day but that is all that is available. I understand your concerns but what is a guy to do? You can send the pump to Robert to be rebuilt if you do not know how to rebuild a fuel pump and if you do not know how, have it done professionaly. I do not advocate some one just going out and doing anything fuel related it IS dangerous but I do share knowledge if I have it. Would I rebuild my fuel pump? Yes I would but I have done several in the past and I do know what I am doing. My comment was I have never had that particular pump apart so that I could actually say what it is or how it is done. But I do have the knowledge of how to rebuild a pump and once I had disassembled the pump I could tell you how to do it. And my pumps do have the bypass fittings so I will rebuild them eventually. With new kits from Robert Henkel not NOS stuff from wherever. And I know how to test a fuel pump after rebuilding and I would do that. I assume that someone asking about rebuilding knows how to do it or they wouldn't be asking and YES I know all about assUme.
Quote When I recommissioned my 327F I didn't even test the pump, I pulled it out and promptly bought a new marine grade pump. Unquote I don't blame you I would do the same but what would you do if there was no pump available? Go Electric with all the appropriate oil pressure shutoffs etc.. and do you trust the pressure switch to shut it off? Or can it fail like anything else? You can play the safety game to death and no I am not an advocate of a lot of stuff I have seen in boats but I also understand that some parts are no longer made and rebuilds can become a necessity but if you don't know how use a professional. Oh one other thing if you do do anything at all with your fuel system and don't have a sniffer installed you are playing with bombs. I have a sniffer installed in my boat to detect gasoline fumes does everyone else? Paul you got one in that runabout?
My point is you do need to know what you are doing and things like sniffer alarms are worth their weight in gold. And anything can fail be it a fitting, diaphragm, fuel line, gasket whatever and all have the potential to cause bad things to happen that is why we run blowers, check sniffers do maintenance etc.. the idea is to do all you can to prevent it from happenning.
Reading your comments, I started wondering if the original fuel pump boss on the block is an option, or is it blocked off by the bellhousing or something else? Then a person could use a standard pump. Just a wild idea and I haven't been drinking.
Yes the original pump access is there it is blocked off with a plate, what it would take to use it I am not sure. One thing I dont like is that where the fuel pump would end up I like it up on top where I can monitor it. Sitting here thinking about my rebuild and if you can actually use that original boss or not?????
Long Pause
Hmmmmmm
Long Pause oh crap go look at manual.
Manual no help go look at my photos of rebuild
OK OK maybe just maybe you can use another fuel pump but which one and what model I have no idea
but here goes oh and Thanks Greg for making me think!
Here you can see the original fuel pump mounting location on the left at the back!!
And here is a shot of my cam going in now remember this is not the original cam it is from Robert Henkel on Harsens Island. If you look close you can see 4 journals and then what looks like a journal for the fuel pump at the very front of the cam. So yes in a rebuild you may be able to use a stock type fuel pump but did CC have a journal on the stock cam no idea.
I would bet that cam would still have the pump cam/journal on it. The pump would end up being down low and might interfere with a stringer or something else. Food for thought. Thanks for digging up the pics.
thanks mark i agree i have rebuilt pumps before
i just like looking at the exact diagram if i can.
i like to see any part diagram if i can.
but i can do with out. i,d be happy to buy a new
pump.
it would be nice but not always possible you know.
I see's it now. Thanks for the pic. That pump must be driven by a eccentric bolted to the front of the camshaft, inside the bellhousing or front cover or is it the back cover. Weird!
I believe whatever mechanical engineer at CC came up with the Q series must have had a spicy dinner the night before. Whatever happened to "KISS" (Keep it simple stupid). I guess that was uncalled for. Sorry.
Yes it is driven by an eccentric bolted to the cam inside the "bellhousing" at the rear of the motor. Sorry yes they are Q's and yes they are different and they are simple you just need to get to know them. There are 2 really bad things about a Q the fuel pump is no longer made and you cant find intake manifolds either other than that no problem. Everything else is straight gm 350 stuff except for some castings which dont wear out. Just dont drop one from a 10 story building!
its not the money
you can not buy a new fuel pump
for the 350 Q i talked to carter tech
support. today they stoped making this pump
10 yrs. ago.they told me to rebuild it
or find some one that will. they even
gave me the phone # to a guy to have it
rebuild. it,s NOT the money do,nt know
what else to do. i can get a rebuild
kit for 35.00 to 100.00 depens were
you look
i,m sorry paul i know i,m new here.
i was just looking for advise on some
stuff i,m not totally familure with.
i,v been restoring mustangs for 30yrs
and do,not know it all YET!! LOL
got my frist boat at 14 and still like to
ask others advise. thats how i learn.
thank you very much
for evryones advise
plus i think it makes
for fun and frindship
Hey I'm one of you, remember? No hard feelings any way you look at it, so no appologies or second thoughst needed. Only problem, I'm the guy who hosts the web site and I can not be posting "how to" rebuild fuel pumps on this site. The pay here isn't all that good, and the risks outweigh the pay. Someone can host this elsewhere, and they can pay up their insurance accordingly. Copy what you want, save it to your hard drive.
My official position on this forum, is to find an uprated fuel pump and not rebuild one. If this means going to a present day electric fuel pump that meets current safety regs, then that certainly appears to be a legal and safe way out for Q owners who may not be able to find a mechanical alternative that meets codes now. I understand the reality, but I'm not assuming any liability on this one. It is your boat, your money, your choice (and it is also your hide, your wife, your kids perhaps, and your friends too).
Keep those cards and letters coming in! Dan, I'm looking forward to meeting you in person some day, hopefully we'll see you at the big Commander Rendezvous next August at Huron Ohio!
Cheers, peace!
Paul
This message has been edited by FEfinaticP on Sep 17, 2008 6:04 PM
No harm no foul I understand your official position and I agree with it to an extent but if you saw my post I never gave any instruction on rebuilding a fuel pump I pointed to another site that had information. I would not post or even do much at all except point to other sources for most things fuel related. Let someone else do the how to not me.
Maybe someone will find a source of pumps for the Q motors. I think they're still selling new pumps for the Hercules flatheads and don't understand why in the heck they ever thought the Q motor needed a different kind of pump than the millions of other SBC motors that seem to work just fine.
Anyway, the message here is "be safe" because fuel issues can be very dangerous.
Lets go boating! The season here in TN is cooling down, believe it or not, we had the heat on last night!
