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 TM 5-2010-205-14
Malfunction
Test or Inspection
Corrective Action
8. Excessive Crankcase Pressure.
STEP 1. Check cylinder compression.
If compression is low in any or all cylinders, notify Direct Support Maintenance.
If compression is within limits, proceed to Step 2.
STEP 2. Check for restricted or damaged breather.
If breather is restricted or damaged, clean or repair breather as needed.
If breather is not damaged or restricted, proceed to Step 3.
STEP 3. Check for damaged or restricted exhaust system.
If exhaust system is defective or restricted, replace defective parts.
If exhaust system is not damaged or restricted, proceed to Step 4.
STEP 4. Check for defective gasket between turbo and block.
If gasket is defective, replace gasket.
If gasket is not defective, proceed to Step 5.
STEP 5. Check for defective cylinder block end cover gasket.
If gasket is defective, notify Direct Support Maintenance.
9. Low Oil Pressure.
STEP 1. Check for low oil level by using dipstick.
If oil level is low, add oil (Appendix E, item 2).
If oil level is normal, proceed to Step 2.
STEP 2. Check for fuel leaks at injector nut seal ring which will cause dilution of the oil.
If seal ring is defective, notify Direct Support Maintenance.
If seal ring is not defective, proceed to Step 3.
STEP 3. Remove oil cooler and check for restriction.
If oil cooler is restricted, clean and reinstall oil cooler.
If oil cooler is not restricted, proceed to Step 4.
STEP 4. Check for defective oil cooler bypass valve.
If oil cooler bypass valve is defective, replace valve.
If oil cooler bypass valve is not defective, proceed to Step 5.
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