Re: [Amc-list] 232/258 fuel pump on ebay

[Glen Hoag <hoag@xxxxxx>]

Would that cause problems sucking fuel from the tank?  If the line 
from the top port of the filter isn't sufficiently restrictive, you 
could wind up pumping around the "bypass" and starving the engine of 
fuel at speed.  I think that I would want the return line going back 
to the tank.

PartsAmerica.com lists two pumps for a '70 Hornet.  The early style 
with filter,  Carter M3805 (Airtex 3805 is the same pump), or the 
late style without filter, Carter M3979/Airtex 3979.  This must have 
been a running change.

--Glen

At 07:40 PM 10/14/2008, Tom Jennings <tomj@xxxxxxx> wrote:
>I was unable to buy a "1970" fuel pump; 1979 was off-the-shelf.
>
>I wonder if you could simply install a three-legged fuel filter, and run
>the "return" line into the line from the tank and into the pump with a
>tee! The third leg is basically an outlet with a restriction -- it makes
>the pump "leaky".
>
>The third leg/return line also bleeds pressure off the needle and seat
>when you stop the engine -- this stops a lot of older cars flooding when
>   parked. That's a nice thing!
>
>Glen Hoag wrote:
> > There were differences, but the aftermarket seems to have
> > standardized on one type, which is probably the high volume
> > pump.  See the part number change in '76 for 2 bbl carbs in the AMC
> > part number listing.  This may cause issues in applications without a
> > return line.  I had to replace the pump in my daily driver recently;
> > I should check the pressure on mine.  I may need to add a regulator.
> >
> > --Glen
> >
> > At 03:58 PM 10/14/2008, Ken Ames <ameskg@xxxxxxxxx> wrote:
> >> There you go...  : )
> >>
> >> Shouldn't there be a difference in pumps through the 70s? I know 
> that the pump
> >> in my 80 AMX (high volume) would flood the carb if I didn't have the
> >> return-to-tank line attached, but the earlier pump (regular 
> volume) was fine.
> >>
> >> Ken
> >>
> >>
> >> Quoting Glen Hoag <hoag@xxxxxx>:
> >>
> >>> At 01:09 PM 10/14/2008, you wrote:
> >>>> It's listed only as an IHC part but should fit others as well.
> >>>>
> >>>> 120317992742
> >>>>
> >>>> is the item.
> >>>>
> >>>> Ken
> >>> While it's interesting, don't bother; this pump is available new from
> >>> Advance or CSK for around $33 in Carter brand and $35.50 in Airtex
> >>> brand.  AutoZone stocks it in Airtex brand for $32.  The eBay seller
> >>> wants anywhere from $10-21, depending on where you are located, 
> to ship it.
> >>>
> >>> This pump fits the AMC six, but the hose fittings on it appear to be
> >>> unique to the IH trucks.  AMC applications use a flare fitting on the
> >>> outlet side of the pump.
> >>>
> >>> The correct 1970-88 AMC pump is Airtex 6737 (M6737 in Carter) and
> >>> sells for $25.50 on partsamerica.com (Advance/CSK).
> >>>
> >>> Prior to 1970, a pump with integral filter was used.  It appears that
> >>> the later style pump can be fitted to earlier engines with the
> >>> addition of an inline fuel filter.
> >>>
> >>> I have AMC parts catalogs from 1973/86 that list the following six
> >>> cylinder fuel pumps:
> >>> 1973 3216577 (supplied with bolts) USE 3225283 (and two bolts)
> >>> 1974 8124459 (supplied with bolts) USE 3225283 (and two bolts)
> >>> 1974 3223045 USE 3225283
> >>> 1975/77 (1-V) 3225283
> >>> 1976/77 (2-V) 3228191
> >>> 1978/83 3228191
> >>> 1984/86 (Eagle) 3240172
> >>>
> >>> All of these applications cross to the Airtex 6737.
> >>>
> >>> --Glen
> >>>
> >>>
> >>>
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> >>>
> >>
> >>
> >>
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