More Onan 5500 - sputters bad under load

Hap Hazard wrote:
Allcool

Checked my manual and I find no details on adjusting the valves. It refers you to an authorized dealer. Not an option in my remote area.

Do you have the details on how to do this maintenance? Posting that information here might help many of us.

Thanks,
Hap

Here ya go. Tried to post a Photobucket jpeg pic of the Onan 5500 shop manual, with a pic of the valve adjustment, but for some reason the forum keeps timing out and not posting my message..???
I've posted plenty of pics here before, but lately when trying to 'preview' my message or post jpegs, forum times out with an error message..???

ADJUSTING VALVE LASH
Valve lash is adjustable through the maintenance
access opening on gensets with enclosures. Access
to Cylinder No. 1 requires removal of the air filter
enclosure. See Page 8-1, 8-8 or 8-13, depending
on fuel system.
Note: For accurate adjustments, valve lash
must be adjust when the engine is at room temperature.
Adjust valve lash (Figure 9-2) for all valves to
0.004 inch (0.01 mm). Torque the adjustment lock
nuts to 6.5 lb-ft (8.5 N-m) and recheck lash.
The following procedure is recommended, noting
that the intake valves are the upper ones and the exhaust
valves the lower ones and that Cylinder No. 1
is to the left (generator side) and Cylinder No. 2 to
the right:
1. Remove the spark plugs so that the engine is
easier to turn over.
2. Use a socket wrench on the generator pulley
nut to turn the engine. Remove the snap-in cover
in the access hole in the drip pan. Always
turn clockwise so that the nut does not loosen.
3. Remove the valve covers. Have rags in place
to catch the oil that spills out.
4. Turn the engine until the Cylinder No. 2 intake
valve (top) is at maximum lift. Then adjust Cylinder
No. 1 intake valve lash.
5. Turn the engine until the Cylinder No. 2 exhaust
valve (bottom) is at maximum lift. Then
adjust Cylinder No. 1 exhaust valve lash.
6. Turn the engine until the Cylinder No. 1 intake
valve (top) is at maximum lift. Then adjust Cylinder
No. 2 intake valve lash.
7. Turn the engine until the Cylinder No. 1 exhaust
valve (bottom) is at maximum lift. Then
adjust Cylinder No. 2 exhaust valve lash.
8. Secure the valve covers using new gaskets.
Torque the cover screws to 5.5 lb-ft (8 N-m).
9. Replace the spark plugs and pulley nut cover