TINA ENGINE RE-BUILD

Now I have all the parts I can assemble the crank cases, crank, Piston and Barrel.


All the parts assembled two bearings two oil seals and the .003 shims (home made)













First thing is to put bearings in the freezer for an hour or so.

 First seal in on the left hand inside.

 Left hand out side view.

 Second seal on the right hand side inside view.

Out side view.

Both bearings pressed in.

 First half of the crank in not forgetting the shim next to the crank.

 Blue seal both mating surfaces.

Press together and use a few long bolts to hold until the unit is bolted in the engine frame.

Barrel looks good after the re-bore.


















Next fit the piston to the small end.

 Whilst pushing the gudgeon pin into the piston it was OK but when it came to go through the small end it was very tight. I made a schoolboy error by placing in the vice and applying pressure slowly pushing the pin through but not looking at the contact between the vice jaws and the piston. the rubber guard I had in place had moved. I heard a click and ................ broke the top ring.

So now I have to find a set of rings before fitting the barrel and head.