turn up fuel rate in a 6.2 - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 4 (permalink) Old 12-19-2005, 07:06 AM Thread Starter
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turn up fuel rate in a 6.2

There's a 5/32" allen under the fuel stop sol. & cover, but is very risky to do. This engine can "runaway" if you're not careful. You have to remove the little linkage pieces inside the bowl. I think there's a spring, a small tin-like lever for the shutoff assembly, and the throttle/fuel control sliding plate. There's also a 2 bolt side access cover by the ID plate to get to the adjustment without having to disable the fuel shutoff and remove accelerator sliding pieces and springs. After you take off either cover (and/or the pieces inside) you'll notice a small hole, that's where the 5/32" allen goes. Sometimes it needs to be lined up by rotating the engine. Disable the glowplugs before doing this part! If you slowly rotate it by the alt. you'll see it come into sight. Now turn the allen about 1/4 turn clockwise, less on non-turbo and reassemble it all. This covers the mechanically injected 6.2 & 6.5. Dont forget to have a pyro gauge!
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post #2 of 4 (permalink) Old 03-02-2006, 06:05 PM
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:thanks: we really like all the info
aattsdw is offline  
post #3 of 4 (permalink) Old 04-08-2008, 12:47 AM
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just one thing to add.... I read on another reputiable forum that it is 1/6 turn on non-turbo with a stock/slightly bigger exhaust and a 1/4 turn for turbo with other modifications
M1009 Mudder is offline  
post #4 of 4 (permalink) Old 04-13-2008, 06:53 AM
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The best idea is to get a pyrometer and adjust the fuel screw so that you don't exceed 1100-1200* in the manifold, but yes the NA engines get a lot hotter a lot faster so the fuel should be used in moderation unless you have the air.
Dual K20s is offline  

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