Does any one have any advise on solving the problem of a worn crankshaft end were a clutch drive fits ,the shaft diameter is 1" and steel the drive dog is cast the bearing surface is 1 1/2".it has a small keyway it is a slopy fit no lift but it does wobble is there any miracle adhesives out there.it is keyed and a grub screw from opposite sides :? ANDY
Hi mate what i have done in the past is turned down a sleeve thats couple of thou smaller that your current shaft then heated it up till slides on let it cool down you will do well to move it. If you dont mind me asking what is it for. Any good engine builder will be able to help you on this.. Cheers gaz
Sorry mate just reading your post again that fix would not work due to the key way, Could you not bush the clutch housing. Could you send a pic or post a pic so i can get better idea might be able to machine you something up FOC. cheers gaz
Try Loctite 660. Not cheap but appears to be quite effective. My last experience of this was recently on a steam engine flywheel and shaft where there was was some wear.
As rob1808 says, Loctite 660, see http://65.213.72.112/tds5/docs/660-EN.pdf We have used it a number of times, it will cope with up to a 20 thou gap. The purists don't like it (proper engineering solution etc) but if it had been available 100 years ago, engineers then would have used it Be careful when using it to ensure that you maintain the alignment of the clutch drive. Paul
Like Paul says it's good stuff.Why not take advantage of modern methods if it makes life easier. Don't get it on yer willy though! John
THANKS for your replies the the engine is a villiers MK15 fitted to a monrotiller series 3 rotovator .I have as shaggy advised shimed the shaft on previous engines I warmed a piece of 15mm copper tube and knocked it on to slightly increasing diametre shafts until it fit the crank then fitted the clutch drive dog ,as you can imagine the wall thickness was thin so to remove it across the keyway was easy ,this plus loctite bearing fit a key and grub screw that time it was a sucess.this time this engine it wont stand a shim i have a tube of chemical metal without the instructions on its applications i have used it to seal a diesel leak on a fuel tank and it worked perfectly its made by plastic padding .I dont need 20thou on this occasion JOHN and thats not bragging but i would reccommend protection at all times wether using your spatula or not :lol: ANDY
