I have a 1998 400 Sport which water got past the seals and all of the bearings were shot. I had the Counter balance shaft turned down. It’s been apart for about a year and I’ve finally got around to putting it back together.
The machine shop removed the counter balance gear and they did not mark the counter balance shaft or the gear. I think I have have read somewhere that the piston should be at TDC and the counterbalance (lobe) should also be be at TDC at the same time.
The first two pic’s are when the TDC marks mesh up together.
The piston is TDC while the lobe is not quite at TDC.
The second set of photos show both the TDC of the piston and the TDC lobe being very close to straight up. When I do this, the gears do not mesh together at the same location.
Thank you in advance for any help you may provide.
I have a 1998 400 Sport which water got past the seals and all of the bearings were shot. I had the Counter balance shaft turned down. It’s been apart for about a year and I’ve finally got around to putting it back together.
The machine shop removed the counter balance gear and they did not mark the counter balance shaft or the gear. I think I have have read somewhere that the piston should be at TDC and the counterbalance (lobe) should also be be at TDC at the same time.
The first two pic’s are when the TDC marks mesh up together.
The piston is TDC while the lobe is not quite at TDC.
The second set of photos show both the TDC of the piston and the TDC lobe being very close to straight up. When I do this, the gears do not mesh together at the same location.
Thank you in advance for any help you may provide.
