It will not start, it fires sometimes, but will not start. I have changed the carb, the ignition coil, the plugs & wires. Anyone have any ideas? Thanks, John
Garden - Farmall - Tractor A-i,av,super A ,super Av Radiator
Good Day to You, I would ask you to be patient if I go through something you have tried. Your question was posted under radiators so am not sure of model of farmall tractor or if a farmall. If you need to know more like firing order, tolerances for compression will need more specifics on tractor. I am going to go through this systematically. It takes 3 basic functions to make an engine run, Spark, Fuel, Compression. Will hit each one of these to make sure we covered all bases even though you have changed a few of these things.
Spark, make sure that ALL cylinders are firing, the spark should be bright. A Timing light can be used or an in-line spark tester. Or remove plug and test by grounding it out watching for the spark. If you have good spark in all cylinders then move on to Fuel. You mentioned changing the coil what of the distributor. The timing may be off as well check the timing.
Fuel, Is there fuel present in the cylinders, Fuel pump working, clogged fuel filter start working backwards if fuel not present.
Compression, Check the compression in all cylinders and compare them with one another. Low compression in one cylinder would mean possible bad rings or faulty valves. Low compression in two cylinders that are adjoining and they equal to each other would be a head gasket as probable cause not always to you have leaking radiator fluid with a bad head gasket.
I spent a little more time on the number 3 cause of what you said you have already done. Please fill free to comment back with any other questions you may have or if you need any clarifications. I hope this gives you some more things to look at. Thanks for using FixYa and have a great evening. Jeff
hello, the starter wire has kind of gone bad... I think, if you look at the wiring from front to back you will most likly find one or more breaks in the insulation around the wires. This will cause a drain to the starter or a short to the system. Solution: track and replace all falty wires and ammeter
thanks for using fixya,
take care.
hello, the starter wire has kind of gone bad... I think, if you look at the wiring from front to back you will most likly find one or more breaks in the insulation around the wires. This will cause a drain to the starter or a short to the system. Solution: track and replace all falty wires and ammeter
Answers & Comments
Good Day to You,
- Spark, make sure that ALL cylinders are firing, the spark should be bright. A Timing light can be used or an in-line spark tester. Or remove plug and test by grounding it out watching for the spark. If you have good spark in all cylinders then move on to Fuel. You mentioned changing the coil what of the distributor. The timing may be off as well check the timing.
- Fuel, Is there fuel present in the cylinders, Fuel pump working, clogged fuel filter start working backwards if fuel not present.
- Compression, Check the compression in all cylinders and compare them with one another. Low compression in one cylinder would mean possible bad rings or faulty valves. Low compression in two cylinders that are adjoining and they equal to each other would be a head gasket as probable cause not always to you have leaking radiator fluid with a bad head gasket.
I spent a little more time on the number 3 cause of what you said you have already done. Please fill free to comment back with any other questions you may have or if you need any clarifications. I hope this gives you some more things to look at. Thanks for using FixYa and have a great evening. Jeff
I would ask you to be patient if I go through something you have tried. Your question was posted under radiators so am not sure of model of farmall tractor or if a farmall. If you need to know more like firing order, tolerances for compression will need more specifics on tractor. I am going to go through this systematically. It takes 3 basic functions to make an engine run, Spark, Fuel, Compression. Will hit each one of these to make sure we covered all bases even though you have changed a few of these things.
HELLO,please what is not starting,i will really appreciate if you can re-type the question.
name and model number.
take care
hello,
the starter wire has kind of gone bad...
I think, if you look at the wiring from front to back you will most
likly find one or more breaks in the insulation around the wires. This
will cause a drain to the starter or a short to the system. Solution:
track and replace all falty wires and ammeter
thanks for using fixya,
take care.