American Auger DD-10 Motor Repairs

The tracks were not assembled as the bearings on the track tensioners were worn out, further the rig's motor would turn over but would not start.

After some investigating, we found that both intake and exhaust valves were broken in the cylinder head and the rocker arms were not in the correct place, we then removed the cylinder head and found that previously the rig was being operated with broken valves on the third cylinder.

The piston was evidence that the valves had been broken for a while.

Damage was done to the cylinder head on piston 3, both exhaust and intake valves at piston 3, piston 3 itself, and the injector at piston 3. Upon further investigation we found the valve ends in the exhaust manifold and the other in the turbo housing.

We completed the following on the CAT Acert 6.6 motor:

-Pressure test, skim the cylinder head and install the new valve seats.

-New injector for cylinder 3

-New Piston and rings for cylinder 3

-New head gasket

-2 new exhaust valves

-2 new intake valves

-Seating of all valves

-Replaced valve steam seals (24)

-Replaced glow plugs (6)

-Replaced diesel priming pump

-Oil filter

-Air filters (2)

-Diesel filters (2)

-Coolant change

-Engine oil change

-Strip and clean the diesel tank

-New bearings and machining of track tensioner (Both track tensioners)

All parts were replaced with OEM parts except the injector and valves. All works were completed in-house.

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