Post by lincolntbird on May 26, 2014 9:25:11 GMT -4
Have done the valve reliefs on one piston so far. Here is a photo of a standard unmodified Justy piston on the right & a Justy piston on the left with modified valve reliefs to suit the Sherpa EK42 engine.
Not pretty, but should work.
Update Update, the two pistons now have the valve reliefs finished & have been test fitted with the head on & everything looks good to go . The photos below show the pistons & the tools used too modify them. The sanding disc on the gasket sander is a 24 grit & this was used to do the bulk of the work. The 12V drill with the small rotary bur was used to finish off the edges where the gasket sander couldn't get in. The pistons & rods where held in the vice on the drill press.
Hey, nice work! Does the 25 grit pad last to do all of that grinding? or did you change it out a few times. Optical illusion, do the pistons stick out above the deck surface of the block? You are moving right along now, were you planning on making any changes to the intake or exhaust?
1992 Vivio RXR Supercharged 1990 2 Door Justy Turbo Project 1988 2 Door EFI conversion Other Project Justies
1970 Opel GT Race project
It is spelled REX not WRX it is not a wannabee or pretender because REX means KING
Post by lincolntbird on Jun 3, 2014 11:51:43 GMT -4
The one 25 grit pad did the whole job. The pistons are flush with the top of the block. For this engine I am basically leaving stock, or though I would like too at least run a twin exhaust . Fuel mods etc will get done when I do the engine with the VF1100 pistons & rods , hopefully.