case 600 problem

sww011 · Oct 10, 2012

I have rebuilt the engine had the injection pump rebuilt and the injectors checked. I have also cleaned the precumbustion chambers. the tractor will start and run on 3 to 4 cylinders and as it warms the other cylinders come in so the engine smooths out and runs ok. this process takes about 20 minutes every time you crank it.

1031D · Oct 10, 2012

Sounds like bad injectors or low compression. If the fuel doesn't squirt into the power cell engine properly it won't superheat and ignite. Also, low compression can cause poor ignition and as it warms up the pistons swell and seal.

Anonymous-0 · Oct 10, 2012

I agree that compression is the problem. I presume you replaced rings, or sleeves, pistons, you didn't say. I am also assuming that you stagered the rings around the pistons. If all this was done, I would hook it to a dyno and properly break in the engine under varying loads. We had problems with new tractors, sold in late fall and sentenced to manure spreader duty for the winter. If they didn't straighten out during spring tillage, we put them on the dyno, removed the aircleaner eliment and sucked borax off a table spoon into the engine. That deglazed the cylinders and seated the rings. Our Case Territory Service Rep. tought us this little trick.
Loren

John Saeli · Oct 10, 2012

Tell us about the valve job. New seats & valves, or ground seats & valves.

sww011 · Oct 10, 2012

I was thinking compression myself. I have just replaced pistons rings and sleeves. I also staggered the rings. My brother told me to hook it to a disk and work it good. thanks for the comments and suggestions.

Zach81 · Oct 10, 2012

I"m with John.....sounds like a valve job. Did you not have this done during overhaul?

Zach81 · Oct 10, 2012

I"m with John.....sounds like a valve job. Did you not have this done during overhaul?

Roger S · Oct 11, 2012

If you have cleaned the first stage fuel filter, and replaced the secondary and third stage fuel filters. Install an oil pressure gauge where the small line is by the secondary fuel filter. You should see 15-20 lbs pressure. If you do, my opinion is the injectors are eighter sticking, or have a poor spray pattern. As the motor warms up the injectors can free up, and or the fuel will ignite easier if they aren"t spraying correctly. It"s just my opinion.

sww011 · Oct 12, 2012

Ground seats and valves.

case 600 problem

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