Replacing the head and doing some other updates such as new plungers in the common rail pump and updated cam and rollers.
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https://www.youtube.com/watch?v=GShq2muUPqs
Going to couple of service calls, 1 is pulling the main hydrostat pump from a Wilmar spray rig, and the other are some communication problems on a 6415 John Deere. https://www.facebook.com/warren.lane.5872 https://www.instagram.com/wlrfixinit/
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https://www.youtube.com/watch?v=BDXl4ADNyBQ