Detroit Diesel Troubleshooting Diagrams

Archive for the ‘Excessive Crankcase Pressure’ Category

Series 60 Defective Air Compressor

with one comment

To determine if a defective air compressor is causing excessive crankcase pressure, perform the following: ‪

1. Perform a crankcase pressure test and record the test results.
2. Disconnect the air outlet line from the air compressor;

Series 60 Defective Air Compressor 300x175 Series 60 Defective Air Compressor

3. Repeat step and record the test results.
4. Compare the results of test one with test two.

If the engine crankcase pressure remained the same, check the turbocharger;
If the engine crankcase pressure decreased, repair the air compressor;

Written by sam

February 2nd, 2012 at 4:13 am

Series 60 Damaged Breather

without comments

To determine if an obstructed or damaged breather is causing excessive crankcase pressure, perform the following: ‪

Perform a crankcase pressure test.

If the engine crankcase pressure is less than 3 in. H 2 O (0.75 kPa), check the air compressor.
If the engine crankcase pressure is greater than 3 in. H 2 O (0.75 kPa), replace wire mesh element.

Rocker Cover Breather Resolution

Perform the following steps to replace wire mesh element replacement: ‪

1. Remove the valve rocker cover(s);
2. Remove the wire mesh form the rocker cover;
3. Install a new wire mesh element to the rocker cover;
4. Install the rocker cover to the engine;
5. Verify replacement of wire mesh element;

 

Written by sam

February 2nd, 2012 at 4:10 am

Series 60 Oil Pressure Regulator Valve Parts

without comments

Written by sam

September 30th, 2011 at 3:25 am

You might also likeclose