VALVE GP-CONTROL 9U9496 - Caterpillar

Introduction
The specifications given in this book are on the basis of information available at the time the book was written. These specifications give the torques, operating pressure, measurements of new parts, adjustments and other items that will affect the service of the product.When the words "use again" are in the description, the specification given can be used to determine if a part can be used again. If the part is equal to or within the specification given, use the part again.When the word "permissible" is in the description, the specification given is the "maximum or minimum" tolerance permitted before adjustment, repair and/or new parts are needed.A comparison can be made between the measurements of a worn part, and the specifications of a new part to find the amount of wear. A part that is worn can be safe to use if an estimate of the remainder of its service life is good. If a short service life is expected, replace the part. The specifications given for "use again" and "permissible" are intended for guidance only and Caterpillar Tractor Co. hereby expressly denies and excludes any representation, warranty or implied warranty of the reuse of any component. This engine uses bolts (3/8 inch size only) with washer heads in some locations. The washer head bolt does not need a plain washer, lockwasher or lockplate. Where these bolts are used on aluminum covers or housings, a plain washer is needed. If you are not sure a washer is used under a bolt head, use the Parts Book to see if a washer is needed.Troubleshooting
Troubleshooting can be difficult. The TROUBLESHOOTING INDEX gives a list of possible problems. To make a repair to a problem, make reference to the cause and correction on the pages that follow.This list of problems, causes, and corrections will only give an indication of where a possible problem can be, and what repairs are needed. Normally, more or other repair work is needed beyond the recommendations in the list.Remember that a problem is not normally caused only by one part, but by the relation of one part with other parts. This list is only a guide and can not give all possible problems and corrections. The serviceman must find the problem and its source, then make the necessary repairs.Troubleshooting Index
1. Engine Crankshaft Will Not Turn When Start Switch Is On.2. Engine Will Not Start.3. Engine Misfires or Runs Rough.4. Stall at Low rpm.5. Engine Speed Will Not Increase More Than 1000 to 1200 rpm.6. Sudden Changes In Engine rpm.7. Not Enough Power.8. Too Much Vibration.9. Loud Combustion Noise.10. Valve Train Noise (Clicking).11. Oil In Cooling System.12. Mechanical Noise (Knock) In Engine.13. Fuel Consumption Too High.14. Loud Valve Train Noise.15. Too Much Valve Lash.16. Valve Rotocoil or Spring Lock is Free.17. Oil at the Exhaust.18. Little or No Valve Clearance.19. Engine Has Early Wear.20. Coolant in Lubrication Oil.21. Too Much Black or Gray Smoke.22. Too Much White or Blue Smoke.23. Engine Has Low Oil Pressure.24. Engine Uses Too