Weichai America Corp.
Revision: October 2018 19
E. Remove the old filters by the filter wrench. Wipe filter base clean. Then apply a
thin coat of motor oil to o- ring on new oil filter(s).
F. Install oil filter. Tighten filter until the rubber gasket contacts base. Rotate 3/4 to 1
circle to tighten.
G. Using the recommended grade of oil, fill crankcase with specified quantity.
H. Fill the grease cup of the signal generator with lithium grease (NLGI Gr. 2).
I. Operate engine for five (5) minutes. Check for leaks at filter base and oil pan drain
plug during operation.
J. Shut down engine and wait five (5) minutes. Check engine oil level and adjust to
proper level if necessary.
6. Engine Valve Lash Adjustment
NOTE: Required every 500 hours (1000, 1500, etc.) on non-emergency.
NOTE
Confirm that #1 piston is on the compression stroke by turning both pushrods by hand to verify
that both valves are closed. The valves are closed when the push rods are loose and can be
turned easily.
Engine can be barred over by installing bolts in the empty holes around the crankshaft pulley and
using a pry bar to turn the crankshaft.
A. Remove all valve covers.
Oil filter
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com
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