Tractor Repair: Ceased MF135 tractor, engine perkins, socket spanner

Question
Hi,

I have just started to strip down the engine on a MF135 Diesel (3 Cylinder) as it seized due to lack of oil. I have remover the CAM, Injectors and head bolts and do want to do damage when spliting the head away. Any suggestions on how to do this.

Thanks

Answer
Hi,

I have just started to strip down the engine on a MF135 Diesel (3 Cylinder) as it seized due to lack of oil. I have remover the CAM, Injectors and head bolts and do want to do damage when splitting the head away. Any suggestions on how to do this.

Felix

Hi Felix.
It would be handy if you had a copy of the manual it would help with all these and other questions.
However i like to start with the obvious --did you drain the water and also the oil if there was any left? Remove all the bits –like the tank hoses fuel lines even the radiator battery wiring etc
Great pity about the seaced engine as this was one of the best engine Perkins ever made! How ever it still may be possible to save the engine.
THE BIG QUESTION IS HOW YOU UNDID THE HEAD BOLTS AS THERE IS A DEFINITE ORDER TO DO THIS IS THE OPPOSITE TO THE ORDER TO THEM BEING DONE UP, TO UNDO YOU SHOULD START IN THE MIDDLE AND UNDO EACH A LITTLE AT A TIME ALLOWING THE HEAD TO GRADUALLY RISE UP AS IN ONE PEACE YOU CAN IMAGINE THAT WHEN DOING THE HEAD BOLTS UP FROM THE FRONT OF THE ENGINE FIRST THE IT IS QUITE POSSIBLE TO BEND THE HEAD IN A BANANA SHAPE!
I assume that the engine is seized so much that t you cannot turn it over by hand even slowly, if you can put the injectors back in so there is no air leak and turn the engine over with a large socket spanner on the front of the engine. Evan moving it a small amount may raise the head by the engines own compression. Taping gently under the exhaust manifold with a rubber /wooden hammer should raise the head. DO NOT BE TEMPTED TO JAM IN A SCREW DRIVE BETWEEN THE HEAD AND BLOCK
But assuming the worst has happened and the engine will not turn at all. –
You will have to remove the engine completely from the front axle and the gearbox. And have it standing on a firm base or bench, but you may have done this already.
Turn the engine on its side (crane required) and remove the flywheel and clutch followed by the sump cover. followed by the main bearing caps big ends caps etc.
The timing cover and all the gears etc. This should allow you to lift the crankshaft out
If the pistons are seized in the bores then you may have to remove these out at the same time as the liners.
Inspect every component for damage and ware, Good luck.
Martin