View Single Post
  #11 (permalink)  
Old 01-25-2008, 11:45 PM
Norman's Avatar
Norman Norman is offline
LORD VADER Moderator
 
Join Date: Jan 2008
Location: pampa texas
Posts: 1,367
Default Re: Engine top end rebuild and an engine stand

1. another tool to make life a little easier and to protect the piston form being broke and when you put the cylinder back on this is very handy. Would this be a pain to try and describe by words alone. just a piece of wood with a slot for the rod and it steadies the piston like a third hand

2. clean up gasket areas and wash cylinder and head with warm water and dishsoap to degrease it

3. There is no machining on the cylinders top and its a good spot for a head to start leaking from in the next pic I'm lapping the cylinder to clean it up for a better seal at least it makes me feel better. I also did the seal ring on the head no need to get carried away as soon as the rasied ring turns a little dull form the sanding stop and clean it.

4. using 320 wet/dry sand paper glued to glass and soapy water to keep sandpaper from clogging just smooth it up
Attached Thumbnails
motorized-bicycle-engine-top-end-rebuild-70ccenginepic030.jpg  motorized-bicycle-engine-top-end-rebuild-70ccenginepic031.jpg  motorized-bicycle-engine-top-end-rebuild-70ccenginepic032.jpg  motorized-bicycle-engine-top-end-rebuild-70ccenginepic033.jpg