Re: 49 Cub (threw the towel in today)

Posted by Dixieland on April 30, 2005 at 21:09:17 from (207.119.210.235):

In Reply to: 49 Cub (threw the towel in today) posted by GNB on April 30, 2005 at 19:43:31:

Hi G...Hold on there!!!I will help you do this. These may be stupid questions and suggestions but we gotta start somewhere.
Are the plug wires connected to the distributor in proper order. The distributor cap should have a number one(1) indicating cylinder # 1 plug wire location. From there going clockwise facing top of distributor cap is # 2, # 3, & # 4 consecutivly. But, the firing order for connecting at the spark plug end at each cylinder is 1, 3, 4, 2. The front cylinder is # 1 then 2, 3, 4. Double check these and make sure they are correct.
Next thing to check is, do you have the correct spark plugs? You may need a hotter plug to fire the old engine.
If all that checks out the logical problem would be in the correct settings of your rocker assembly. If your carb is getting fuel and you have fire at the plugs your valves are not fully opening and or closing at the proper time. The easiest way for me to tell you how to do this is, take the spark plug out of cylinder # 1.Place your thumb over the hole and turn engine untill you feel air being forced out. As soon as you feel the compression shine a flashlight into the spark plug hole and watch for the piston to come to the very top of the stroke. Then do the same for cylinder # 3, then # 4, then #2. If you don't get the compressed air at these points and time, your rocker arm needs to be set so the valves open and close properly. If no compression is there, bring cylinder # 1 piston to top of compression stroke indicated by alignment of timing mark and flywheel mark. When these are aligned exactly, lossen the valve tappets untill the # 1 exhaust and intake valves are completly closed. With a feeler gauge adjust the tappets for .014" clearence between the tappet and valve. Then turn the crank handle engine for Your next compression stroke which will be cylinder # 3 and continue to # 4 then #2.
Double check your manual for the proper clearance on your valves but .014" should be ok to get er runnin.
I know this is about as clear as mud but it is a start. If you find these suggestions not to be the problem, post back and we will write some more...Good Luck...Dixieland

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