20 hp Chrysler Electic Start Carb Removal

[Bullie]

I picked up a 1972 20 HP Electric Start model 204HDyesterday. I, with much difficulty, got the starter off and cleaned up lots of rust from the crank shaft and points, reassembled and got it to fire and run if I squirt a little fuel mix in the carb. Actually sounds pretty good. Anyway, it is not getting any gas to the carb so I removed the fuel pump. It needs a rebuild...no problem. But, is there a secret to getting the carb off? Just from my observation this morning it appears that I will have to remove the starter, flywheel, and all the ignition system to get to the bracket the carb is bolted to on top. Someone tell me the easy way please.

 

[Nordin]

I have worked on many 20Hp but just one with electric start (dyna start) starter and alternator in one piece mounted on the top of the flywheel.
Well the carb for the 20Hp has the nuts vertical (all other Chrysler has horisontal) so if you can not reach the top nut (just below the flywheel) then you may have to remove the flywheel, and the starter. Do not think you have to remove ignition system.

 

[Bullie]

I got some really good and simple advice... a screwdriver and some careful tapping saved a lot of work.

Another question. On the carb there is a brass screw that allows access to the needle valve and seat. The PO used some red sealer or gasket compound on it and the other screws. I haven't been able to loosen this one with PB Blaster or carb cleaner. Would it be ok to use heat on this casting? Or some other method you guys would advise? Not familiar enough to know what is ok to heat and what is not.

 

[Nordin]

The red sealer is from factory. I have never loosen this brass screw to access the needle valve.
I clean the carbs with a ultrasonice cleaner, compressed air, WD 40 and water.