360 Chrysler running like crap cont...
Posted: Mon Aug 04, 2014 12:37 pm
This is a continuation of my write up from the old site..
After changing filters, spark plugs, wires, rebuilding distributors, rebuilding carburetors, cleaning flame arrestor and new coils on both engines. The missing under load returned. It was time to get some professional help. Thank You Ron S.
First he looked at the port engine. After I got it started, which by the way was always a problem. He committed that the timing was off which he verified with the timing light.
Adjusted timing to specs. He then went on to the carb. After pulling the flame arrestor he notices the choke is half on while the engine is up to normal operating temp. He made an adjustment to the rod that connects the choke linkage to the thermostat controlled pull down spring
and then adjusted the two low speed idle adjusting screws using a tachometer. Set the idle speed at 750 rpm. Shut the engine off and restarted it. It started on the first crank. Usually it takes three or four revolutions to start. We take it out for a test run. Runs great
We notice that the port throttle handles and the starboard throttle handles are not even. Port is half way open and starboard is all the way to the wall. Head back home and make a date to look at starboard engine.
Onto the starboard engine He first checked the timing, it was spot on. Next he took a look at the carburetor. Removed the flame arrestor and found that this choke was working perfectly. Did a the low speed adjustment on the carb and set the idle to 750 rpm. After reinstalling the flame arrestor I notice that the bracket on the flame arrestor that I had made up for the fuel pump diaphragm rupture syphon hose was sitting right on top of the choke linkage keeping the choke practically closed. What a dufass!
Took the boat out for a test run.. OMG I have died and went to heaven
Both engine are running as they should. Took it up to wide open throttle and both engines were reading 3400 rpm with the throttle to the wall and she jumped up on plane.
A very special thank you to Ron S. and his son Eric.
bill
After changing filters, spark plugs, wires, rebuilding distributors, rebuilding carburetors, cleaning flame arrestor and new coils on both engines. The missing under load returned. It was time to get some professional help. Thank You Ron S.
First he looked at the port engine. After I got it started, which by the way was always a problem. He committed that the timing was off which he verified with the timing light.
Adjusted timing to specs. He then went on to the carb. After pulling the flame arrestor he notices the choke is half on while the engine is up to normal operating temp. He made an adjustment to the rod that connects the choke linkage to the thermostat controlled pull down spring
and then adjusted the two low speed idle adjusting screws using a tachometer. Set the idle speed at 750 rpm. Shut the engine off and restarted it. It started on the first crank. Usually it takes three or four revolutions to start. We take it out for a test run. Runs great
We notice that the port throttle handles and the starboard throttle handles are not even. Port is half way open and starboard is all the way to the wall. Head back home and make a date to look at starboard engine.
Onto the starboard engine He first checked the timing, it was spot on. Next he took a look at the carburetor. Removed the flame arrestor and found that this choke was working perfectly. Did a the low speed adjustment on the carb and set the idle to 750 rpm. After reinstalling the flame arrestor I notice that the bracket on the flame arrestor that I had made up for the fuel pump diaphragm rupture syphon hose was sitting right on top of the choke linkage keeping the choke practically closed. What a dufass!
Took the boat out for a test run.. OMG I have died and went to heaven
Both engine are running as they should. Took it up to wide open throttle and both engines were reading 3400 rpm with the throttle to the wall and she jumped up on plane.
A very special thank you to Ron S. and his son Eric.
bill