c-200 Engine issues

[Ensorman]

I 574 (c-200 Engine,Gas) Compression #1 cyl.-50, #2-100, #3-100, #4-100. Tractor starts good and will run under load for about 30 minutes and then will start missing and will stop. Let set for awhile and cool down then it will start and go again. Any thoughts and recommendations to solve this problem? If a new or rebuilt engine is in the future. I value your recommendations and Thanks from new member to great forum.

 

[Charlie M]

Could be the coil going going bad. Works OK until they start to build up heat and when they get too hot the resistance increases and the amount of current for spark decreases to where there is no spark at all. When the tractor stops feel the coil and see its too hot to keep your hand on.

 

[Roadhog1]

Put oil in the cylinder and recheck compression. if compression goes up , its the rings, if compression stays the same its valve. Then pull the head to make a thorough inspection.

 

[rustred]

I 574 (c-200 Engine,Gas) Compression #1 cyl.-50, #2-100, #3-100, #4-100. Tractor starts good and will run under load for about 30 minutes and then will start missing and will stop. Let set for awhile and cool down then it will start and go again. Any thoughts and recommendations to solve this problem? If a new or rebuilt engine is in the future. I value your recommendations and Thanks from new member to great forum.

if that compression reading of 50 lbs is correct you have a problem right there. do a valve setting to make sure its not a tight valve. the missing sounds like a bad coil.

 

[Brownie450]

Condenser/ points are worth checking.
Jim

 

[BarnyardEngineering]

The name of the game with compression is consistency more than actual numbers. You've got one cylinder that's way off from the rest, and that's likely where your problem is.

I've run into similar behavior that was caused by a burned valve. The engine would warm up and the valve would stop sealing altogether, causing it to miss. Let it cool down and it would run fine for a little while, then rinse and repeat.

I suspect if you IMMEDIATELY do a compression check on #1 when you experience the problem, that you will find it has little to no compression.

 

[MARK ROBKE]

I 574 (c-200 Engine,Gas) Compression #1 cyl.-50, #2-100, #3-100, #4-100. Tractor starts good and will run under load for about 30 minutes and then will start missing and will stop. Let set for awhile and cool down then it will start and go again. Any thoughts and recommendations to solve this problem? If a new or rebuilt engine is in the future. I value your recommendations and Thanks from new member to great forum.

If it quits running, and will restart after cool down, it is not because it needs an overhaul. It quits because it's not getting spark or fuel. When it quits, IMEDIATELY check for spark. If that is ok, see if it is getting fuel at the carb. Mark.

 

[wore out]

The name of the game with compression is consistency more than actual numbers. You've got one cylinder that's way off from the rest, and that's likely where your problem is.

I've run into similar behavior that was caused by a burned valve. The engine would warm up and the valve would stop sealing altogether, causing it to miss. Let it cool down and it would run fine for a little while, then rinse and repeat.

I suspect if you IMMEDIATELY do a compression check on #1 when you experience the problem, that you will find it has little to no compression.

Would be even better to do a "cylinder leakdown test" which would immediately show where compression is being lost.

I have a "544 Hydro" with a BAD miss (also a C-200), a compression test showed low compression on cylinder #3, a leakdown test confirmed it's going past the piston. It's on the list to get into the shop for an overhaul.

 

[Ensorman]

Would be even better to do a "cylinder leakdown test" which would immediately show where compression is being lost.

I have a "544 Hydro" with a BAD miss (also a C-200), a compression test showed low compression on cylinder #3, a leakdown test confirmed it's going past the piston. It's on the list to get into the shop for an overhaul.

Thanks for the thoughts on finding my problem or problems. I will try some of the possible solutions when the weather gets a little warmer.
Thanks again until later.......

 

[caterpillar guy]

The miss could be the low compression but the dying out is not because of the compression. More like the coil or fuel delivery problem. We had a chevy 6 that was down to 20-50 PSI compression long ago that would start and run just no power when doing so. Sure don't miss that truck.

 

[PineRiverPat]

I 574 (c-200 Engine,Gas) Compression #1 cyl.-50, #2-100, #3-100, #4-100. Tractor starts good and will run under load for about 30 minutes and then will start missing and will stop. Let set for awhile and cool down then it will start and go again. Any thoughts and recommendations to solve this problem? If a new or rebuilt engine is in the future. I value your recommendations and Thanks from new member to great forum.

I 574 (c-200 Engine,Gas) Compression #1 cyl.-50, #2-100, #3-100, #4-100. Tractor starts good and will run under load for about 30 minutes and then will start missing and will stop. Let set for awhile and cool down then it will start and go again. Any thoughts and recommendations to solve this problem? If a new or rebuilt engine is in the future. I value your recommendations and Thanks from new member to great forum.

Hello. Just a thought on something to check with older gas engines. Weak condensers in with points can cause a similar issue. Start and run for a little, then warm up and die. Good luck.

 

[used red MN]

If it quits running, and will restart after cool down, it is not because it needs an overhaul. It quits because it's not getting spark or fuel.

Hello Enso.. welcome to YT! I agree with what Mark has said above, your main problem is ignition or fuel. One cylinder that is down on compression will mimic/simulate a misfire but it will not all of a sudden change into a more prominent misfire and cause the engine to die. You say it will run under a load for about 30 minutes and then this problem comes on. What are you doing with the tractor when this happens, what is the load and under what conditions/temp is it happening. Your tractor has a fuel pump, diagnosing the possibility of it being at fault would be high on my list for troubleshooting.

 

[Ensorman]

Hello Enso.. welcome to YT! I agree with what Mark has said above, your main problem is ignition or fuel. One cylinder that is down on compression will mimic/simulate a misfire but it will not all of a sudden change into a more prominent misfire and cause the engine to die. You say it will run under a load for about 30 minutes and then this problem comes on. What are you doing with the tractor when this happens, what is the load and under what conditions/temp is it happening. Your tractor has a fuel pump, diagnosing the possibility of it being at fault would be high on my list for troubleshooting.

Thanks for the welcome.
To answer your questions. All I do with this tractor is bushog pastures. The weather is usually hot. What is the procedure for checking the Fuel Pump?

 

[47fivewindow]

Is the tank full? Our 574 has a cross over pipe in the bottom that lets the fuel get from the fill side to the fuel line. You can see fuel but it won't run to the other side. I have also encountered resistance in wires and switches that take a while to get hot enough to cause missing. Tight point gaps are always suspects.

 

[47fivewindow]

that compression reading of 50 lbs is correct you have a problem right there. do a valve setting to make sure its not a tight valve. the missing sounds like a bad coil.

I think the valve lash on that engine is .027. They must think that heat causes a lot of movement. I hope you just have a tight valve. I don't think a valve is making it stop running.

 

[wwoodrow]

I 574 (c-200 Engine,Gas) Compression #1 cyl.-50, #2-100, #3-100, #4-100. Tractor starts good and will run under load for about 30 minutes and then will start missing and will stop. Let set for awhile and cool down then it will start and go again. Any thoughts and recommendations to solve this problem? If a new or rebuilt engine is in the future. I value your recommendations and Thanks from new member to great forum.

Could be as simple as fuel restriction caused by any of the following: vent in fuel cap plugged; collapsing fuel line; trash in fuel delivery system[ tank, screens, filters. etc.; vapor lock in fuel line [ rarely but possible ] Have you checked for fuel flow from carb immediately after it stalls ? Fuel flow from inlet ?