Hi everybody,
So time has come do go for my Landini (identical to MF 154 )Perkins AD3 152 in frame overhaul / rebuilt as I was writing here.
Here some pictures of main steps:
1. After placing some steel stand (homemade) and wood block I lift the front axle with an hydraulic jack and lifted tractor.
2. Removed hood, ballasting, battery, wirings and everything going to the front axle (radiator hoses etc)
3. Tear down the engine head , I have all setscrews except two stud which got undone when unscrewing their bolts. Here some pictures. It looks quite good to me, the same does the gasket.
4. Oil sump tear down. On the gasket between sump and block there is a lot of black sealant which got stuck and pulled down front and back rubber /silicon gaskets sealing the sump. They are made of rubber and not cork.
5. Here is the cyl sleeve #1 which was the one down on compression (280psi). Big marks and groove on the sleeve.
6. Piston #1 has broken ring and damaged ring housings (matching the marks on the liner), hence lack of compression and the blow by. Piston #2 has the top ring broken also
7. I got from a mill shop a homemade sleeve puller pad and a threaded bar with a U shaped steel profiles acting as a counter plate, put a ball bearings on in and start pulling with 24mm hex long fork wrench and a steel pipe.
8. Once the sleeve came out half of their stroke I went for the hammer and chisel option to wreck them, as the crankshaft is still on I will be carefully cleaning it and blowing it to avoid any small parts of sleeve get stuck in between the pistons rods journals and the crankshaft elbows..
9. Pistons rod bearings at the crankshafts reports the part number 31131291 with the Perkins logo that should be the stander sized bearings. They all look good, no marks no pits on them
10. Cyl #3 sleeve is still stuck there, also the threaded rods and the U shaped steel piece I used a s puller got bent. I tried to gently chisel the lip and accidentally made a small mark on the block surface here is it ; I hope it is not a big issue as the head gasket should be able to properly seal.
So here my questions / doubts:
1. [b:cde77f60dc]Would the mark on the block surface described above affect the sealing of the head and therefore the reliability of the whole rebuilt engine?[/b:cde77f60dc]
2. Would I replace head setscrews? How can I visually inspect the head. At this stage I am not planning head rebuild.
3. Could I hammer and chisel directly the #3 sleeve directly install of pulling in out? It is really stuck into it, the force I apply to pull it out does bend the puller and stretch the threaded tie rods..
I do really thank you for your attention and precious help.
So time has come do go for my Landini (identical to MF 154 )Perkins AD3 152 in frame overhaul / rebuilt as I was writing here.
Here some pictures of main steps:
1. After placing some steel stand (homemade) and wood block I lift the front axle with an hydraulic jack and lifted tractor.
2. Removed hood, ballasting, battery, wirings and everything going to the front axle (radiator hoses etc)
3. Tear down the engine head , I have all setscrews except two stud which got undone when unscrewing their bolts. Here some pictures. It looks quite good to me, the same does the gasket.
4. Oil sump tear down. On the gasket between sump and block there is a lot of black sealant which got stuck and pulled down front and back rubber /silicon gaskets sealing the sump. They are made of rubber and not cork.
5. Here is the cyl sleeve #1 which was the one down on compression (280psi). Big marks and groove on the sleeve.
6. Piston #1 has broken ring and damaged ring housings (matching the marks on the liner), hence lack of compression and the blow by. Piston #2 has the top ring broken also
7. I got from a mill shop a homemade sleeve puller pad and a threaded bar with a U shaped steel profiles acting as a counter plate, put a ball bearings on in and start pulling with 24mm hex long fork wrench and a steel pipe.
8. Once the sleeve came out half of their stroke I went for the hammer and chisel option to wreck them, as the crankshaft is still on I will be carefully cleaning it and blowing it to avoid any small parts of sleeve get stuck in between the pistons rods journals and the crankshaft elbows..
9. Pistons rod bearings at the crankshafts reports the part number 31131291 with the Perkins logo that should be the stander sized bearings. They all look good, no marks no pits on them
10. Cyl #3 sleeve is still stuck there, also the threaded rods and the U shaped steel piece I used a s puller got bent. I tried to gently chisel the lip and accidentally made a small mark on the block surface here is it ; I hope it is not a big issue as the head gasket should be able to properly seal.
So here my questions / doubts:
1. [b:cde77f60dc]Would the mark on the block surface described above affect the sealing of the head and therefore the reliability of the whole rebuilt engine?[/b:cde77f60dc]
2. Would I replace head setscrews? How can I visually inspect the head. At this stage I am not planning head rebuild.
3. Could I hammer and chisel directly the #3 sleeve directly install of pulling in out? It is really stuck into it, the force I apply to pull it out does bend the puller and stretch the threaded tie rods..
I do really thank you for your attention and precious help.