The valves have to be closed and the dist can go in many diff ways(you must turn the oil pump with a screw driver.) Get #1 an with the valves closed now look to see were the rotor is(DO NOT LOOK AT THE FRIGGIN BOOK)were the rotor is IS #1 no if ands or butts.Put the #1 spark plug wire on the cap to match up to the rotor placement(AGAIN FORGET THE BOOK)you may have to turn the dist a little to get the rotor matched to a post on the dist. Now just start form #1 plug wire and go clockwise on the cap 153624. Dont look at the diagram in the book. Timing rarely jumps on a 235 and you could have 6 burnt valves and it wont blow the muffler apart.YOU have the timing wrong.Did it happen before you changed any parts???Did you change vavle adjustment??? Keep us posted ,there are no dumb questions.
