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Carter Fuel pump on 304
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78304CJ-7 View Drop Down
AMC Fan
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Joined: May/02/2021
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Points: 14 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 78304CJ-7 Quote  Post ReplyReply Direct Link To This Post Posted: May/03/2021 at 12:33pm
Originally posted by 6PakBee 6PakBee wrote:

Originally posted by bbgjc bbgjc wrote:

Don't know it off hand.  Just cruise over to AZ AMC Restorations on FB and see the entire article of the issues they've had and what they are working on to correct it.



Don't have a Fakebook account.  Big smile

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I haven't sold my soul and privacy to "F" book either
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Points: 2001 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mbwicz Quote  Post ReplyReply Direct Link To This Post Posted: May/03/2021 at 1:44pm
Basically, there are multiple concerns with the new pumps. Some have had the internal seal become dislodged and allow fuel to get into the engine oil. There have also been reports of the pump arm breaking. I haven't personally had either issue, but have read several comments on this.
There should be a part number stamped on the pump. Mine was stamped on the flange where it bolts up to the engine.
With the part number, you can call a vendor for replacement parts. I googled 'fuel pump rebuild' and am working with a guy in Florida to get mine rebuilt (I forgot the company name, I can post it later).

Mike
1970 AMX, one step forward, one step back. Both steps cost time and money.
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A recent phone call to Blasers Nash Rambler AMC Parts in Moline Illinois ( 309 ) 764-3571 , blaserauto(dot)com
yielded verbal comments that hey have "modern swaged" replacement type AMC V8 Fuel Pumps for $47
that are "professional grade" rather than "service grade" or "economy grade" and are sourced
by Blasers Auto from, and a product of, a United States of America Company, they are NOT imported.
Blasers may also offer a re-build yours and return service via the same company, call and ask'em.


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Points: 14 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 78304CJ-7 Quote  Post ReplyReply Direct Link To This Post Posted: May/03/2021 at 3:56pm
OKay lets try this, no idea if this will work but it's worth a try. These will open on my computer but who knows what google is doing. :) 

https://photos.google.com/photo/AF1QipPUyhpJsDsgPopIAaQ7DzqdD2GpGFb8wuuZyFs9

https://photos.google.com/photo/AF1QipM4a6mBou2nNf8s-5YkLFkXNPWQ3iOKxeRlWxTo




Edited by 78304CJ-7 - May/03/2021 at 3:58pm
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Points: 1719 		Post Options Post Options   Thanks (1) Thanks(1)   Quote BassBoat Quote  Post ReplyReply Direct Link To This Post Posted: May/03/2021 at 8:42pm
the picture that you posted is what PHAT calls the "Standard" Pump.  It has 1/8 NPT for the inlet and outhlet and 12 screws holding it together.  If your pump has 1/4 NPT fittings and 6 screws holding it together then it is superior "Performance" pump.  rebuild kits are available from the ford guys.  https://www.cjponyparts.com/67-and-up-carter-fuel-pump-rebuild-428cj-scj-boss-302-429cj-boss-429-429scj-1967/p/AFP67/
MY pump did exactly as you say, started leaking fuel out the weep hole.  The problem is a hole in the diaphragm.  Mine was actually working fine, just leaking.
the pump arm from the good pump can be swapped to a new pump intended for an FE ford.  the pump is the same, only the arm is different.  The "freeze plug" is actually a plug that holds in the pivot pin.  Remove that, remove the pin, and the arm comes out.  Google carter fuel pump rebuild videos and yo will get a better description.  Whatever you do don't let a good pump arm out of your sight.
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M6906 is the good carter pump for AMC, M6905 is the pump for an FE Ford.  https://www.summitracing.com/parts/crt-m6905
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Originally posted by BassBoat BassBoat wrote:

the picture that you posted is what PHAT calls the "Standard" Pump.  It has 1/8 NPT for the inlet and outhlet and 12 screws holding it together.  If your pump has 1/4 NPT fittings and 6 screws holding it together then it is superior "Performance" pump.  rebuild kits are available from the ford guys.   https://www.cjponyparts.com/67-and-up-carter-fuel-pump-rebuild-428cj-scj-boss-302-429cj-boss-429-429scj-1967/p/AFP67/ - https://www.cjponyparts.com/67-and-up-carter-fuel-pump-rebuild-428cj-scj-boss-302-429cj-boss-429-429scj-1967/p/AFP67/
MY pump did exactly as you say, started leaking fuel out the weep hole.  The problem is a hole in the diaphragm.  Mine was actually working fine, just leaking.
the pump arm from the good pump can be swapped to a new pump intended for an FE ford.  the pump is the same, only the arm is different.  The "freeze plug" is actually a plug that holds in the pivot pin.  Remove that, remove the pin, and the arm comes out.  Google carter fuel pump rebuild videos and yo will get a better description.  Whatever you do don't let a good pump arm out of your sight.



Thank you sir, yes 6 screws and 1/4 npt ports. Pump works just fine, just weeps like yours. So looks like a rebuild kit is in order then. I figured the "freeze" plug was actually a pin for the arm. Just figured that was a simple descriptive way of describing it .

Oddly in my OP the first picture was grabbed from this amazon link. 

https://www.amazon.com/Carter-M6905-Mechanical-Fuel-Pump/dp/B000CIQ5CC/ref=rtpb_1?pd_rd_w=FxQIK&pf_rd_p=be844577-fee7-4bbc-8dda-083e56cc6f0d&pf_rd_r=GZNX7T3EGP4NDQB7BCE1&pd_rd_r=5113cb72-cd28-4934-b1dc-d86117bb73a1&pd_rd_wg=G38SB&pd_rd_i=B000CIQ5CC&psc=1

That is a pump for a Ford FE, so I can purchase that pump and swap arms? In the mean time I can purchase a rebuild kit for my current pump so I have a spare. I'm sure I have old pumps packed away with my timing covers it's just they are all in storage at the moment. 

Thanks

RJ
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Points: 14 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 78304CJ-7 Quote  Post ReplyReply Direct Link To This Post Posted: May/04/2021 at 1:07pm
Originally posted by BassBoat BassBoat wrote:

M6906 is the good carter pump for AMC, M6905 is the pump for an FE Ford.   https://www.summitracing.com/parts/crt-m6905 - https://www.summitracing.com/parts/crt-m6905


6906 looks pretty much like my pump. Says no available. 

https://www.summitracing.com/parts/crt-m6906
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Points: 3223 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mramc Quote  Post ReplyReply Direct Link To This Post Posted: May/04/2021 at 1:35pm
Can I hazard  a guess that the six cylinder fuel pumps for AMC are much the same as the junk ones for the V-8s. I got a new Delphi pump for my six cylinder 1969 Javelin and seems to have lasted just long enough to drive to the gas station and back before it went south on me. The only six cylinder fuel  pumps that seem to be available are what I call the late model twin towers fuel pumps , that have two round high tower looking units on the pump. Hencho in China of course . LRDaum
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