Detroit Series 60 12.7L Valve Adjustment Chart

Accurate adjustment of clearance between valve buttons, intake and exhaust valves is important if maximum performance and economy are to be obtained.‪  To ensure efficient engine performance and extended valve and injector service life, an initial valve lash and injector height measurement/adjustment requirement has been established. ‪ Effective immediately, the valve lash and injector heights on all Series 60 engines must be measured and, if necessary, adjusted at the initial period of 96,000 km (60,000 miles) or 24 months (Whichever comes first)‪. Once the initial measurements and adjustments have been made, any adjustments beyond this point should be made only as required to maintain satisfactory engine performance.‪ In this article i will show you how to  adjust detroit series 60 12.7L valve using correct detroit series 60 12.7 valve adjustment chart.

The Series 60® Diesel Engine  uses an inline cast iron block and has a cast iron cylinder head that contains a single overhead camshaft. The camshaft actuates all the valves (two intake, two exhaust per cylinder), and operates the fuel injectors. The vertically aligned gear train, located at the front end of the engine in a gear case, contains drive gears for the lubricating oil pump, crankshaft, camshaft, air compressor drive, fuel pump drive, water pump and alternator accessory drives. Intake and exhaust valve clearance and fuel injector height are adjusted by means of an adjusting set screw and locknut located at the valve end of the rocker arm.

Adjust the detroit series 60 12.7 valves using the chart bellow.

You can also use Detroit Series 60 12.7 Valve Adjustment Chart from AERA Technical

SUBJECT: SERIES 60 DIESEL VALVE LASH, JAKE BRAKE LASH AND CAMSHAFT TIMING SPECIFICATIONS
PUBLICATION: DDC-SVC-MAN-0004–1207 (6SE483)
SERIES 60 DIESEL VALVE LASH, JAKE BRAKE LASH AND CAMSHAFT TIMING SPECIFICATIONS
The following specs have been changed in the Series 60 Diesel Valve Lash, Jake Brake Lash and Cam
Timing Specs Table 1-50 and 1-51.
□ MV_E 12.7 L, 2004-06
□ HV_E 14.0 L, 2004-06
□ HK62 14.0 L, 2004-06
The following specs have been removed from the Series 60 Diesel Valve Lash, Jake Brake Lash and
Cam Timing Specs Table 1-50 and 1-51.
□ Marine TK 12.7, Various years
□ Marine HK 14.0, Various years

Note:

Never set the valves and injector of the same cylinder at the same time. Doing this will result in engine damage.‪ The slave piston adjustment procedure must be strictly followed. Failure to use the proper adjustment procedure will result in poor engine brake performance, serious engine damage, or both.‪

You can find some DIY videos how to adjust detroit series 60 12.7L valve, here’s two most helpfull videos i can find on Youtube. If you need the workshop manual you can find detroit series 60 12.7 valve adjustment procedure here