Timing Advance and valve adjustment

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98 auto... ..... is it hard to advance the timing on these trucks any special tools needed??? is it really worth it? is there any instructions also would like to know if valves should be adjusted (I have @26K) i was told that they should be about now

 

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You need a special took kit for the timing. The valve adjustment is covered in the service manual. If you don't have one you should get it. It would be cheap at twice the price because it will pay for itself very quickly.

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Joe George
Eureka, CA

'95 2500 CC auto 4X4,3. 54,Combo EGT/boost guage,custom switch panel,PacBrake,TST #5,BD valve body,Automatic motorhome steps on both sides,Foldacover hard bed cover,Cummins chrome kit,Black steel grill guard,Front hitch receiver

 

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I did my valve adjustment at 24,000 miles and they were all very close to perfect. . I guess the only way you know is to check them. . It's not that bad of a job.

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'98 4x4 12V QCab Auto (ready to BOMB)

 

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The valve adjustment is covered in the last TDR. Use the overlap (voodoo) method. It works great and it's way easier! Craig

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97 3/4Ton, 2WD, 5SP, #11 Plate, 14 Housing, AF942M Air filter, Gutted Cat, 4"From Turbo, Airlift, Shortened Frame, Custom Bed, HEY FORDBOY POWERSTROKE THIS!

 

[Archive]

Rednut,

If your truck is stock, I would leave the timing where its at. Advancing the timing will move the peak torque from about 1600 rpm to the around the 1900-2000 rpm range. The engine will sound a little more "crisp" also.
You probably wouldn`t notice a major difference in the characteristics of the engine. You will notice the peak torque has moved up the rpm band though. If you plan to modify the engine to a somewhat high level, then bumping the timing makes the combination work better. Lower EGT`s, more time for a larger injector to deliver its larger slug of fuel.

Here is a good article explaining timing changes to the 5. 9 Cummins:
http://www.ecpe.vt.edu/~dfritz/technical/diesel/FAQ/timing.htm


Bill R
94 2500 SLT 4x4 5 Speed, 3. 54 LS, JRE 4" exhaust, Autometer Pyro, Boost & Water temp gauges, Bosch 215 HP injectors, Timing @ 14. 7 º, JRE Stage III #4 plate 270/675, AFC spring kit, Scotty Air, Bully Dog Propane Injection, Roadmaster Active Suspension, Optima Red Tops, Geno`s Exhaust Blanket,Espar Heater (won it!), Synthetic lubes throughout.




[This message has been edited by HEMI®Dart (edited 09-23-2000). ]