Adjusting valve lash on Onan 4000
Onan Micro quiet 4000 (gas) 2003 era Haven't adjusted valves on this before. Any advice on adjusting valves? Is it straight forward like other valves or something I should watch out for? Am ...
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I hadn't thought about adjusting the valves on my 4KY. It has around 105 hours and runs fine. (now that it has a new pump...)
Looking through the owners manual in the maintenance section, I find the schedule for adjusting the valves.
It is 450 hours, with a footnote: "6 Must be performed by a qualified mechanic (authorized Onan dealer)."
The service manual states how to adjust them and provides specs, but doesn't mention a service interval. I would have thought they would put the maintenance intervals in the service manual as well.
For both intake and exhaust:
Valve Stem to Rocker Arm Clearance (Valve Lash)
ALLOWABLE LIMIT: 0.0008/0.0032 (0.02/0.08)
All clearances are at 70° F (21° C) room temperature.
All measurements are listed in inches with millimeter measurements in parentheses.
Looking through the owners manual in the maintenance section, I find the schedule for adjusting the valves.
It is 450 hours, with a footnote: "6 Must be performed by a qualified mechanic (authorized Onan dealer)."
The service manual states how to adjust them and provides specs, but doesn't mention a service interval. I would have thought they would put the maintenance intervals in the service manual as well.
For both intake and exhaust:
Valve Stem to Rocker Arm Clearance (Valve Lash)
ALLOWABLE LIMIT: 0.0008/0.0032 (0.02/0.08)
All clearances are at 70° F (21° C) room temperature.
All measurements are listed in inches with millimeter measurements in parentheses.
