View single post by Judson Manning
 Posted: 06-26-2007 12:59 am
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Judson Manning



Joined: 03-14-2005
Location: Atlanta, Georgia USA
Posts: 406
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 Getting an LBC to fire after 20yrs is a HUGE boost to one's ego and provides unlimited motivation to getting the car back on the road!

If the carbs are in good shape and you have fire, the problem is in one of two places:  Either the timing is bad or there is insufficient compression (also a sign of wrong timing). 

Double check your timing and verify the plugs are firing in proper order while turning the engine by hand. 

You can check the valves w/o a leak-down rig with a 24" length of tubing and your mouth.  Set the engine to TDC, pull plug #1, make a fairly tight connection with your tubing, and blow.  If the chamber won't hold any pressure, the valves are either timed wrong or bent.  Repeat with 3, 4 & 2 for each 180^ turn of the crank.

We're pulling for you!