Go BottomMassey Ferguson 205-4 starting and power problem
 | Benpinckard
Join Date: Jun 2022 Posts: 7 
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2022-06-09 201092
I have a Massey Ferguson 205-4 Diesel Tractor. Since I had it overhauled , it smokes excessively when it is started. For about 2 minutes it puffs white smoke. It then will pop 4 or 5 times with short puffs of black smoke. It will then have full power. Until it puffs the black smoke, it seems that it is running on one cylinder. It has very little power until it pops the black smoke mixed with white smoke. What could be wrong. It did not do this until it was overhauled.
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| Imfedup
Join Date: Dec 2015 Posts: 58 Central Kentucky
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2022-06-10 201095
"overhauled" is a rather subjective term. When applied to a diesel engine it could mean a bored block (in the case of a parent bore block, not honed or deglazed), or replaced sleeves or liners. New pistons and rings, as part of the process. Was that done, or just some of it?
Was the engine run, broken in, rings seated, etc after said overhaul? What you describe could well be a result of something on that list that wasn't done. ....
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| ranktrank
Join Date: Jun 2020 Posts: 23 florida
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2022-06-14 201108
Sir if you haven resolved your power issue check your valve clearance, see that they are not too tight,then start it and Crack the fuel lines to each injector to determine the cylinders that are not firing, did you replace the injectors on your rebuild, it is best to do that.if you like to take the time to further isolate the problem, take the good injector that is firing and swap it to one that is not firing, now you will see if it is a ring problem as if you don't know how to set a new piston and liner up it can Crack a ring when the tractor gets run up to temp ....
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| Benpinckard
Join Date: Jun 2022 Posts: 7
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2022-06-15 201116
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Thanks for the information. I will have the items checked. ....
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| Benpinckard
Join Date: Jun 2022 Posts: 7
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2022-06-16 201118
The injectors were rebuilt. I removed them after the rebuild and had them checked again by a certified diesel company. I am going to have a mechanic check the valve clearances. I hope it is not a broken ring.
Thanks for the information. ....
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| ranktrank
Join Date: Jun 2020 Posts: 23 florida
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2022-06-16 201119
Sir if you remove the exhaust manifold and start the engine you will se the cylinders that are not firing and if youbsee a port with oil on it that will either be a ring or valve seal issue. Checking the valve clearance is pretty straightforward just remove the valve cover and ise a feeler guage to get the clearance, if you give me an engine number I can give you the valve clearances ....
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| ranktrank
Join Date: Jun 2020 Posts: 23 florida
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2022-06-28 201169
Mr sir did you get your loss of power problems resolved ....
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| Benpinckard
Join Date: Jun 2022 Posts: 7
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2022-06-28 201170
I have not, as of yet, checked the valve clearances. I have the clearance .035 and .030. Thanks for the inquiry. ....
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| ranktrank
Join Date: Jun 2020 Posts: 23 florida
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2022-06-28 201171
Sir not knowing the exact engine number I can't give you the exact valve clearance spec,but if you set them at .014 all the way across that will be good because if you gap it .035 they aren't opening, maybe just a squeek,, set them at .014 and it may solve a big part of your issue ....
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| ranktrank
Join Date: Jun 2020 Posts: 23 florida
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2022-06-28 201172
Sir just an after thought, if you could provide the engine model number on the block I can come up with the right specs,and on some of the Perkins engines there are tapets on top of the valves do when you go set them make sure they are there,and I'll help you walk through this issue if you like kind regards Gary ....
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| Imfedup
Join Date: Dec 2015 Posts: 58 Central Kentucky
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2022-06-29 201173
Do you think a 205 might have a Perkins engine? ....
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| ranktrank
Join Date: Jun 2020 Posts: 23 florida
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2022-06-29 201174
Yes sir it could have a Perkins engine in it ,on the side of the block there should be a flat spot with some numbers stamped in it ,if you can give me a serial number I can find what engine is in it ,or tell me what color the tractor is if it's yellow it's industrial if it's red it's ag as general rule,it ....
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| ranktrank
Join Date: Jun 2020 Posts: 23 florida
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2022-06-29 201175
Sir does it say something like S107 on the top of the engine, if you could post a good pic or so of the engine it would be of great help kind regards ....
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| Benpinckard
Join Date: Jun 2022 Posts: 7
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2022-06-29 201177
Good morning, the engine is a Toyosha S107
Thanks for your advise. ....
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| ranktrank
Join Date: Jun 2020 Posts: 23 florida
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2022-06-30 201178
Sir these Japanese engines are very difficult to rebuild because the tolerance are so close, if you don't use oem Japanese parts it a problem, and you more than likely have broken rings.i don't like being the bearer of bad new ,it has to be dismantle to really find out ,and if you already paid someone to rebuild it you don't, Really want to go that route ,you will have more in the thing than it's worth ,maybe just wait it out and keep looking for a good deal on a used engine,you can run across one if you don't get in a hurry ....
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| Benpinckard
Join Date: Jun 2022 Posts: 7
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2022-06-30 201179
Toyosha S107 engine ....
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 | Murf
Join Date: Dec 1999 Posts: 7249 Toronto Area, Ontario, Canada 
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2022-07-06 201201
Triple check the fuel injection timing. if it's ok, then pull the injectors and have an injection shop check them over.
Best of luck. ....
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| Benpinckard
Join Date: Jun 2022 Posts: 7
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2022-07-06 201209
I have had the injectors double checked by a diesel repair company. The timing has not been checked. Thanks for the information. ....
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| tbear640
Join Date: Aug 2014 Posts: 19 Rhodes Michigan
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2022-07-07 201211
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If it has glo plugs pull them and do a compression check. Check both dry and wet. Check fuel filter and fuel vent cap, white smoke indicates unspent fuel while both could indicate timing or internal compression issues. ....
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