Thursday, 23 October 2008

MED Pistons


IMG_0627, originally uploaded by tobyanscombe.

Mental note to self (and others)..

This picture was taken with the block on its side with the oil filter/dizzy side facing up. You can see that at the top of the picture there is more head than combustion chamber.

If you look at the MED pistons the cutouts are not symmetrical - obviously you need to make sure that the cutouts closest to the piston edge go on the exhaust side and the bigger gap is on the inlet side.

For reference here is a photo of a piston:

Not a great photo for this purpose but it will do - you can see that on the left hand side there is very little meat of the crown left when compared to the right hand side. When you come to fit the pistons to the rods you need to make sure that the side of the piston with the most meat on the crown goes on the oil filter/dizzy side.

Monday, 20 October 2008

Oil pump drive


, originally uploaded by tobyanscombe.

or as it used to be, a camshaft!

Machined piston


, originally uploaded by tobyanscombe.

I had to take 3cc out of the crown to get the compression down to 12:1

Chunk taken out of the end


, originally uploaded by tobyanscombe.

to add to the lightening process...

Con Rods


, originally uploaded by tobyanscombe.

Peened and cleaned...

Wedged and bladed crank


, originally uploaded by tobyanscombe.

EN40 so it should not break!!

4 bolt main


, originally uploaded by tobyanscombe.

or in this case, a 4 stud main from Swiftune

Blocks back...


, originally uploaded by tobyanscombe.

All I need to do now is find the time to bolt everything together!