David Dee wrote:
Still have not got my HAPI engine with a POSA throttle body and Slick
4216 magneto started.....
...............
Try this. Disconnect the fuel line and plug it. You don't want fuel
anywhere nearby when doing this.
Remove the valve covers.
Figure out for sure which cylinders are firing when by installing the
plug wires on the plugs....with the plugs removed from the engine, with
spark plug grounded (either pushed into contact with some grounded part
of the engine (case or heads), or better yet a jumper wire with large
alligator clips to connect the plug's threads to a ground.
Turn on the ignition and slowly rotate the crank by hand (in the proper
direction) until a plug fires, then check to make sure that both intake
and exhaust valves on the corresponding cylinder are closed (some
clearance between rocker and valve stem).
If this works, make sure that when the plug fires for a cylinder, it's
the compression stroke and not the exhaust stroke (back up after the
spark to Top Dead Cylinder, and use your finger to determine if there's
compression).
This is pretty basic stuff, but is a good start to make sure that the
basics are there....spark and compression. Fuel is another matter,
especially since you are talking POSa.
Mark Langford
m...@n56ml.com
http://www.n56ml.com
Huntsville, AL
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