Heavy pulled engine
Posted: Thu Feb 09, 2017 12:56 pm
Hi!
I have many years of experience of rebuilding snowmobile engines, change bearings on crank, new pistons and so on.
But Its my first time rebuilding a vmax 540 engine.
Today its finally first time to pull the rope.
But the engine is really hard to pull. I almoust lifting the snowmobile.
Before i mounted the both crank cases together the crank turn smothly and easy, and bearings are ok.
The bore and pistons are std.
The pistons ring gap is 0.4mm
Pistons are lubricated.
The water pump gear is right mounted, what I can see.
No strange sound of something mounted wrong.
Have anyone any idea what causes this problem?
Thanks in advance
I have many years of experience of rebuilding snowmobile engines, change bearings on crank, new pistons and so on.
But Its my first time rebuilding a vmax 540 engine.
Today its finally first time to pull the rope.
But the engine is really hard to pull. I almoust lifting the snowmobile.
Before i mounted the both crank cases together the crank turn smothly and easy, and bearings are ok.
The bore and pistons are std.
The pistons ring gap is 0.4mm
Pistons are lubricated.
The water pump gear is right mounted, what I can see.
No strange sound of something mounted wrong.
Have anyone any idea what causes this problem?
Thanks in advance