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Condensor?

R

rrlund

Well-known Member
The Oliver 77 has been giving me trouble for a few weeks now. It was just dying intermittently. Might run several minutes or just a few seconds. I suspected the switch. I'd flip it off and right back on then it'd start right back up immediately. This morning it died and wouldn't start. I took the cap,rotor and condenser to town. I told Jeff what it was doing and asked if he thought it was the condenser. He said it sounded like it. I got one,put it on,it started and I got cattle fed.

Now the problem. It isn't running like it did. It sounds labored and is blowing chunks of carbon out the exhaust. When I rev it up wide open,it revs up alright,but it just seems like it takes slightly longer to get up to full speed and when it's speeding up the black smoke rolls out of it. Once it's all the way up to full speed it doesn't smoke. It sounds a little labored at idle too and is just slightly shy of power.

Why would just changing the condenser cause that? He didn't even have a cap or rotor,so I put the old ones back on.
 
I replaced the points and condenser in my G with the stuff from F&F and it would not start, then it would or sputter while cranking. I got so intent on getting it started that I burned up the starter. I put the old condenser back in and it's been running ever since. After I got new fields put in the starter it was running backward. I never got it back to the shop to fix it before the guy closed up. Been hand starting it ever since. I have an old weed eater that would run for fifteen minutes and die Cool it down and it would run another five. $40 for a coil didn't help then a new $4 condenser did. Change the cheap part first.
 
No. I opened them a few times with a screwdriver to make sure I had spark,but that was it.
 
Try a test run up without the air cleaner attached, just to be sure there isn't a restriction. Any evidence of carb flooding, dripping when parked?

Be sure the choke is fully opening.

Is the engine coming up to temp?

Then try leaning the carb (if adjustable). It should give a single puff of black smoke with sudden throttle from idle to full governed speed.
 
When my gas 1550 started carrying on much like that I ended up having to replace the distributor and then the intake manifold was sucking air so i got another manifold after all
that it runs great.I'd also take off the valve cover and check to make sure an intake spring hasn't broken and thats probably not it but if it is a dropped valve can ruin your day.
 
Sure sounds like late timing. Could be worn distributor that moved around as you were working on it. I'd try timing it a little earlier and see if it helps. If the distributor is worn it may still be fine for years if you can get it adjusted.
 
I've got an electric inline shutoff on it so it can't flood. The rotor was burned off at an angle so I had them get another one from another store. I just put that on and it didn't change. It just seems like it's running a little rich. I'll have to fool with the carb a little when I feed in the morning. Makes no sense to me why changing a condenser would throw anything else off. The distributor is tightened right down.
 
won't go into the lengthy details but I seen the same problem you got before and another new set of points and condenser different brand to replace the already new set cured the problem
 
Sometimes just putting the cap back on will throw it off just a little, with the snaps it has a little wiggle room!
 
Ya,I changed the 1550 quite a few years ago. This one has always run like a top though.
 
Considering you didn't change anything else (which I find iffy, having gone through the problems of timing ignition point fired engines most of my life) if the new capacitor er ah condenser were of a larger value, it would not let the primary voltage rise as fast as the old one which would delay the delivery of the high voltage pulse to the plugs causing late timing.

As others have said, advance your timing till it takes throttle and be on your way.
 
I'm thinking you have a bad new condenser. I remember way back in my auto class, the teacher was a former dealer mechanic. He said they had a car that kept burning the points. Turned out it needed a condenser that was made just for that car. What they was using was the wrong spec.
 
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