GSK nut slot alignment and EGT ? - Diesel Truck Forum -
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post #1 of 4 (permalink) Old 11-12-2007, 09:18 PM Thread Starter
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GSK nut slot alignment and EGT Questions

What a great source of information! Your discussions have helped tremendously during the troubleshooting, tuning and tweeking of the factory Cummins 12v 5.9B in my 95 F-800.

2 Questions.
In the governor spring washer instructions it said to note the location of the slots in the nut. Why does the orientation of the gov spring nut matter?

Also, I've got a #5 fuel plate and wastegate restrictor which lets boost run up to 25 lb. since adding the wastegate restrictor and fuel plate My EGT maxes at 400 on a long hard Rocky Mountain climb where I use to hit 900 (downstream probe location) on the same climb. Is there any potential problem indicated by such a low EGT? Before, the truck would drop to 55 mph on that climb and now it will hold up to max speed all the way with throttle to spare!

Many Thanks!
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post #2 of 4 (permalink) Old 11-13-2007, 06:45 PM
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I've never heard of noting the nut location. I'd just do it like everyone else has, count clicks.

Thats kinda wierd that the egts are so much lower, but it mught be from the extra air w/ that restictor :shrug: i dunno
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post #3 of 4 (permalink) Old 11-15-2007, 10:20 PM Thread Starter
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Thanks K20s. Maybe so, the turbo is singing a new tune now.
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post #4 of 4 (permalink) Old 11-16-2007, 01:23 PM
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well lets see....i got my pump pumpin some ok fuel but i also got the turbo pumpin out 30+ pounds of boost so u got to look at the boost to fuel or air to fuel ratio. but thats still a big decrease is ur probe pre turbo or after the turbo

1998 Dodge cummins 12v, #10 plate and afc FF, BHAF, Isspro guges, homemade boost elbow,tabbed kdp
coming soon stacks,tires:Thumbup:
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