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lift pump questions

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Old Apr 9, 2010 | 01:56 PM
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From: york pa
lift pump questions

well im pretty sure mines shot. i replaced the fuel filter yesterday and after i put the new one in a tried to build some pressure to fire the truck up. well i could have pumped the lift pump primer all day. it just didnt ever seem to build pressure. so im guessing that is not working any more. now my quetion is how long can i still drive my truck with out running the ip hot. the reason i ask is cause im just a broke high school kid. i planed on gettin the low pressure piston lift pump soon but not this soon. thanks
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Old Apr 9, 2010 | 02:02 PM
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Well if you can buy online you should be able to buy a low pressure piston pump for around $100 or less. Then buying all the other little bits and pieces it should all stay under $200.

Although I don't like credit cards, they do come in handy in a pinch...
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Old Apr 9, 2010 | 02:08 PM
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From: Quinton, New Jersey (middle of nowhere)
The pump is the most expensive part.

Spacer with gaskets is $28.

Fuel line is around $32

These were at my local cummins distributor
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Old Apr 9, 2010 | 03:22 PM
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From: extreem southern ILL
Richie O has a low psi piston pump and can draw it down to below 3 psi if not more, might want to go another rought.
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Old Apr 9, 2010 | 03:30 PM
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From: york pa
yea but i dont really know how long its gona be till i can afford anythiong. but im worried about burning up the injection pump cause its trying to work too hard
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Old Apr 9, 2010 | 03:32 PM
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From: extreem southern ILL
you could probly use a cheaper nock off holley black and would fine.
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Old Apr 9, 2010 | 03:35 PM
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From: york pa
yea never thought of that.
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Old Apr 9, 2010 | 03:42 PM
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From: extreem southern ILL
PULLTILBROKE has one on his pullin truck ,he has not hooked with it yet but said he can hold 15psi of more ot idle and somthing like 10 or so at WOT, i think i'm gona try one there like $50.00 on ebay.
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Old Apr 9, 2010 | 03:55 PM
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yea i think im gona go to my local cummins dealer and see how much i can pick up a low pressure lift pump for. then make my decition
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Old Apr 9, 2010 | 04:06 PM
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From: Quinton, New Jersey (middle of nowhere)
Originally Posted by 1STGENFARMBOY
Richie O has a low psi piston pump and can draw it down to below 3 psi if not more, might want to go another rought.
Richie O also has 6x16 injectors compared to 1bad93's little pods.
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Old Apr 9, 2010 | 04:08 PM
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Originally Posted by Crossy's son
Richie O also has 6x16 injectors compared to 1bad93's little pods.
I think they're actually 6x.018".
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Old Apr 9, 2010 | 04:14 PM
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You were sure that the cam in the engine wasn't compressing the spring so the lever is loose? Sometimes you need to bump the starter so the cam isn't compressing the lift pump, cause it won't do anything if it is.... pump all you want, nothing's going to happen.
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Old Apr 9, 2010 | 04:18 PM
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From: extreem southern ILL
if you got to replace it do it once and get somthing that will work with whatever sticks you got.
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Old Apr 9, 2010 | 04:31 PM
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From: Pottstown, PA
Originally Posted by dzl_damon
You were sure that the cam in the engine wasn't compressing the spring so the lever is loose? Sometimes you need to bump the starter so the cam isn't compressing the lift pump, cause it won't do anything if it is.... pump all you want, nothing's going to happen.
x2.

In regards to the low pressure pump, i have not pulled my low pressure pump down below 10psi with my set-up.
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Old Apr 9, 2010 | 10:31 PM
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From: york pa
well i noticed the motor is a lot louder than it used to be. it start this after i installed the new turbo. so i was thinking with the larger turbo that it is really burning the fuel and killed the lift pump.
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