200t crank replacement

[sloth]

Hi, can anyone give me guidance on replacing the crank in a 200t ?

Have a new shaft and seals etc. Have seen it done a few times, but not done it myself. I can strip and rebuild comfortably until the block needs splitting, then the old grey matter hits a brick wall!

Any advice welcomed, as a snapped crank is fairly useless! Cheers

[spudulike]

If you have the whole thing stripped down - remove all the T27 bolts that hold the crank cases together including the hidden one below the oiler rubber, hopefully the cases will split easy but if they dont - USE A MALLET and NOT a hammer to wallop the end of the crank and it should split - always make sure all the bolts are out.

 

A heat gun may help ease the cases apart. drive the bearings out - they can go in either way but only one way is correct - take note of the plastic bearing spacers on the bearing. Push the new bearings in and fit the seals and reassemble.

 

If you have never done this then goodluck - it takes a bit of common and also a modicum of engineering skill - stay away from the hammer and use a mallet on everthing. Bearings can be pressed out with a bench vice and suitable drift. Don't damage any of the mating surfaces and drain the oil tank before splitting:laugh1: