pump turn up - Ford Powerstroke Diesel Forum
7.3L IDI (Non-Powerstroke) Diesels Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

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  #1  
Old 10-25-2010, 05:51 PM
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pump turn up

was thinking about playin with the fuel pump on a 88 7.3 dumper with manual trans. any suggestions? im not sure how far it can be turned up before i have problems with the engine being largely stock
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Old 10-26-2010, 03:30 AM
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Install a pyro, first thing.

On the IP, the passenger side bottom there is a black triangular cover. Take all but one bolt out, just loosen that last one so you can swivel the cover out of the way. Rotate the engine until you can see (might need a small mirror) and allen screw. Take a brand new 5/32" allen wrench (no rust can fall into there, so only a new one) and rotate the screw clockwise to increase fuel, counterclockwise to decrease. A little goes a long ways. Start with 1 flat, which is 1/6 of a turn.
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Old 10-26-2010, 10:36 AM
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Thanks Fordguy I never played with an IDI yet, if I end up playing with it Ill let everyone know how it worked. hopefully well have an above average dump truck some day haha
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Old 10-31-2010, 03:18 PM
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Would it be better to wait until I have exhaust before i turn mine up?

Whats the soup bowl mod? just asking? Where would you get a pyro from?
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Old 11-01-2010, 04:46 AM
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Take your air cleaner off and remove the "soup bowl" on the inside of the lid.
An exhaust will help but the order don't matter, just make sure you install a pryo before playing with it.
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Old 11-01-2010, 05:40 AM
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Ok. Ive been looking at pyros. Now im gonna go look at my air cleaner
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Old 11-01-2010, 06:01 AM
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So, i dont know how to get the metal soup bowl part off. I took out the rubber plug in the side and the plastic pipe that goes in the bottom of the soup bowl. Do I have to break or cut the soup bowl itself off. Just dont wanna break my truck and make my dad very angry
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Old 11-01-2010, 06:13 AM
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I used a dremel and cut mine out. Then grinded everything flat so no metal flakes fell into the intake. then painted it all.
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Old 11-01-2010, 07:43 AM
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Yup, your going to have to cut it off.

FYI, that mod kinda dyed out, as a guy Dyno'ed his truck with and without, and it didnt make any difference.

You can get a pyro from anywhere, just make sure its top quality, ISSPRO, autometer, ect
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  #10  
Old 11-01-2010, 08:22 AM
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Quote:
Originally Posted by FordGuy100 View Post
Yup, your going to have to cut it off.

FYI, that mod kinda dyed out, as a guy Dyno'ed his truck with and without, and it didnt make any difference.

You can get a pyro from anywhere, just make sure its top quality, ISSPRO, autometer, ect
My butt dyno noticed no difference. I just felt better knowing I did it.
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