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Thread: NEW Integrated pump sender combo!

  1. #161
    LS Swapper Josh's Avatar
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    Quote Originally Posted by DMCH James View Post
    It's a not a kit per se, but it would come as shown here with a new pump, two new hoses (you'll cut the old ones off), a new in-tank filter (while you're in there) and a loaner set of pliers to get the hoses on. We don't have any written instructions for this. but it's pretty straightforward and we can walk you through it easy enough.

    Attachment 45445
    Well having already disassembled the pump last night its not too bad and those are the three parts I identified I needed. Just removing those hoses can be a bit of a pain.
    Can you send me an email so we can get shipping and stuff figured out. Thanks James

    [email protected]

    Supercharged 5.3L LS4 + Porsche 6spd
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    I am not affiliated with Delorean Midwest in anyway.

  2. #162
    Senior Member DMC5180's Avatar
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    Are those pliers for unlocking the Feed/Return quick couplers on top of the assembly?


    Dennis
    DENNIS

    VIN 5180, Frame 3652, STAGE II​, DM-eng Solid State Solutions (RPM Rly, Dm.Lt.Mod., Fan Fail Mod. , FAN Rly, HS.Rly) , HID headlights, SPAX user since 2009, Eibach springs, M Adj. Rear LCA's, DPNW poly-sway bar kit, DMCEU LCA Stabilizer link kit, DMCMW Illuminated door sills, Aussie Illuminated SS Shifter plate, REAL MOMO EVO Steering wheel, DELOREANA Extended View Side Mirrors w/ Heaters, DELOREANA LED Door Lights.

  3. #163
    DMC Texas 800-872-3621 or +1-281-441-2537 DMCH James's Avatar
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    Quote Originally Posted by Josh View Post
    Well having already disassembled the pump last night its not too bad and those are the three parts I identified I needed. Just removing those hoses can be a bit of a pain.
    Can you send me an email so we can get shipping and stuff figured out. Thanks James

    [email protected]
    Sent.
    James Espey, President
    DeLorean Motor Company (Texas)
    http://www.lcassicdmc.com

  4. #164
    LS Swapper Josh's Avatar
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    As a follow up James has put together the parts and will be shipping them shortly. Seems this is resolved. Thanks James.

    Without the deposit charge for the pliers, it is about $80 in parts which is not too bad.

    Ill still run the alternative pump but rebuild my existing one for a backup which will give some extra piece of mind on road trips.

    Supercharged 5.3L LS4 + Porsche 6spd
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    I am not affiliated with Delorean Midwest in anyway.

  5. #165
    Senior Member Morpheus's Avatar
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    Quote Originally Posted by DMCH James View Post
    It's a not a kit per se, but it would come as shown here with a new pump, two new hoses (you'll cut the old ones off), a new in-tank filter (while you're in there) and a loaner set of pliers to get the hoses on. We don't have any written instructions for this. but it's pretty straightforward and we can walk you through it easy enough.

    Attachment 45445
    When my fuel pump died suddenly a couple of months ago, James hooked me up with the replacement parts above and the car has been running fine since. The new hoses are kind of a pain to put on with the pliers, but a little bearing grease helps in that regard. I would add that it's a great time to drain and re-wipe out your fuel tank when installing, especially if your pickup filter is as bad as mine was.
    IMG_1153.jpg

    James, thanks once again for your help with that!
    Brandon S.

    2014 Honda Civic EX
    2007 Volvo S60R


  6. #166
    Senior Member
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    I see Josh mentioned his pump had the numbers "24137" on them. Has anyone found an alternate source for this pump that is more reliable?
    __________________________________________________ ____________________
    Got any new Purflux oil filters? I may want to buy them.
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  7. #167
    DMC Texas 800-872-3621 or +1-281-441-2537 DMCH James's Avatar
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    My VIN:    Formerly 10570 and 6776

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    Quote Originally Posted by Malevy View Post
    I see Josh mentioned his pump had the numbers "24137" on them. Has anyone found an alternate source for this pump that is more reliable?
    Marc, if you (or anyone else for that matter) are reliability issues with the pump that comes with the 107000, please let me know and I will help.

    We've sold over 1500 of these units since 2012 and we've installed more of these than anyone else at our locations. If there are widespread failures of the pump itself, I *really* want to hear about it because we're not seeing it. Between 2014 and now, we have sold 14 replacement pumps (less than 1% of overall sales). Of the pumps/in-tank filter screens that we have been able to get back from customers who got replacements, all but two were due to debris in the fuel system causing pump failure. My supplier is very eager to see any failures, and we are, as well.

    BTW, I'll be coming to the Spring Social in a few weeks, and I'm happy to talk with you about it there.
    James Espey, President
    DeLorean Motor Company (Texas)
    http://www.lcassicdmc.com

  8. #168
    Senior Member
    Join Date:  May 2011

    Location:  New Jersey

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    My VIN:    ******* 01860 - Legend TT 06068 - VQ35 SC

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    It is possible a better quality pump (and/or screen) will not be as fragile. Quite possible the failures I have seen are due to debris too, but "seat of the pants" non-scientific observation leads me to believe that other pumps may be more reliable (even if that means less prone to damage from debris). I have installed lots of fuel pumps in DeLoreans, and Non-DeLoreans..

    Ignoring the check valve issues (resolved by adding an external one), I have seen 2 pumps that have failed where they still pump but the pressure is too low for the fuel system to operate properly. Even out of the box, they seem to produce less pressure than a well worn OEM Bosch pump.

    I suspect a "performance" replacement pump could be found from companies like Walbro that could overcome the shortcomings I believe the current pump has while maintaining all of it's advantages over the original design. Pumps of this style can be found with insane (high) pressure and flow specifications, but 107000 has a unique filter screen with integrated clips- something I have not seen on any other pump.

    Based on my experience, I have been re-thinking my preference for the DMCH fuel pump. My effort to find a source for replacement pumps to install in the assembly from someplace other than DMCH may push me to opt for the Tahoe (or similar) X-Ref others have used with good results. With those assemblies, I can easily replace (or upgrade) the internal pump.

    Looking forward to seeing you at the DeLorean Mid-Atlantic event in NJ later this month.. And assume I will also see you at the movie premier on 4/30?
    __________________________________________________ ____________________
    Got any new Purflux oil filters? I may want to buy them.
    Learn about Vin 01860 with a Legend Industries engine: https://malevy-dmc.blogspot.com/2022...oDeLorean.html
    I can fix your Craig W460 radio: https://malevy-dmc.blogspot.com/2022...te-player.html

  9. #169
    Senior Member
    Join Date:  May 2011

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    My VIN:    ******* 01860 - Legend TT 06068 - VQ35 SC

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    Spending hours looking at photos of fuel pumps and pickup strainers, I spotted this:
    https://herko.com/productinfo.php?inv=2010#

    I recognized it as the pickup in the DMCH pump.. Researching it further on the Herko website, I found it is included in their kit K9125 which is a replacement pump for a 2004-2005 Chevy Colorado (Also sold as GMC Canyon and Isuzu D-MAX).

    https://herko.com/productinfo.php?inv=3755
    https://herko.com/Retail/herko-high-...2004-2005.html
    https://www.amazon.com/Herko-Fuel-Mo.../dp/B074VBFN5C

    $28 is a great deal for what DMCH sells for $80+ (to buy all 3 parts).
    How about $18 if you want to gamble?
    https://www.ebay.com/p/2004-2005-Che...14m/6004585645
    Or $14
    https://www.aliexpress.com/item/OSIA...835317305.html
    (AliExpress link has a list of other vehicles they claim this pump was used in).

    What a coincidence when I noticed this part also from Herko;
    https://herko.com/productinfo.php?inv=3809
    https://herko.com/Retail/new-herko-f...iter-hour.html

    Felt like a real fool when I also see it right there on EBAY!
    https://www.ebay.com/itm/New-Herko-F...-/381792485378
    And WALMART!
    https://www.walmart.com/ip/New-Herko...Hour/381512406

    I wonder if the two kits are actually the same? they look the same. No specifications are published on the K9125 kit.

    Seems likely that Herko is the source that DMCH uses for this pump. As I am writing all this, a PM comes in casually saying "430 dollars for a Herko pump feels like I'm being robbed", confirming in fact- I am a fool!!

    This is apparently all old news;
    http://dmctalk.org/showthread.php?10...l=1#post196076

    After looking at so many pumps, I believe the top part as custom matched to the bottom (from the 2004 Colorado) for the DMCH special order. Likely because the alternate top will fit better under the fuel pump access cover. I see pumps that match the top of the DMCH pump, and bottom of the DMCH pump, and the float assembly... but so far- only one they are combine is from DMCH. Pontiac GTP (and similar models) looks close too, but not exact.

    The next question is- Can a "better" pump be found for this application? Herko only says their pump is "Flow @ 5 BAR- 140 Lts/Hr; OPEN FLOW= 283 Lts/Hr" which in theory should be an acceptable replacement for the original BOSCH 0 580 254 98. While the Bosh specifications also say it has an OPERATING pressure of 5 BAR, it has a maxim pressure of 11 BAR. I suspect this is where some of the problems I have seen originate. Most noted, the need to reset the mixture after installing the DMCH fuel pump. The DMC factory service manual says that primary pressure should be 5.2 BAR and circulated 29 gallons (110 liters) per hour. So, I should be looking for 2004 Chevy Colorado "performance" pumps (or others listed in the AliExpress link).

    Found this, "Lifetime Warranty", but no specifications:
    https://www.highflowfuel.com/i-23905...2004-2009.html
    Same pump is also used in Harley Davidson and Can-Am. Useless trivia.

    May need to keep looking..

    Point is, all of this information explains the issues I have seen with the DMCH pumps, even the ones that have not "failed". I'd like to find an alternative to install in the DMCH assembly mostly because I have a sense of guilt for all of the people I have recommended (or installed) this pump to/for. Reality may be it is not worth it, probably be better off just using an entire new assembly that already comes with a better pump. The "converter" box can likely be reused, or get the one Dave sells.

    Or, is there another option? I think there may be..... As soon as I figure it out, I will discover someone else has already done it.. LOL
    __________________________________________________ ____________________
    Got any new Purflux oil filters? I may want to buy them.
    Learn about Vin 01860 with a Legend Industries engine: https://malevy-dmc.blogspot.com/2022...oDeLorean.html
    I can fix your Craig W460 radio: https://malevy-dmc.blogspot.com/2022...te-player.html

  10. #170
    Senior Member Bitsyncmaster's Avatar
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    Location:  Leonardtown, MD

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    Remember with the DMCH pump your getting the pump, check valve, fuel gauge ECU, fuel sender cap and plug and play wiring. So it's not just $430 for a $50 pump.

    I did test my GM pump and got a flow rate of a little less then 2 quarts at 75 PSI every 60 seconds. That test is really easy to do. Just pull the return line off the pump and jumper the RPM relay and measure the amount of fuel from the return line in 60 seconds. Note my primary pressure has been adjusted with shims to 75 PSI. I did not test max pressure thinking that value is not worth putting stress on the pump, fuel hoses, etc. If you want to do that test, just put a pressure gauge on the return line.
    Dave M vin 03572
    http://dm-eng.weebly.com/

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