Time to fit the pistons and barrels.
I had them on the engine before to determine things like shims for deck height and cam timing but no rings and piston pin clips.
To fit normal pistons and barrels: rings on piston, piston pin clip on one side, piston half way into barrel, barrel onto studs, line up conrod, slide in piston pin, add clip, gasket glue around bottom of barrel and push home, repeat.
Because of the stroker crank I opted for pistons with a higher pin height, relieved skirts and standard length barrels. This keeps the width of the engine the same as a standard 2ltr and tinware will fit without stretching it over the heads, bending things around the fan housing or modifying it to make the foam seals fit.
The pin height goes into the oil ring area and on top of that there is a fortefied piece on the bottom of the 3 piece oil ring and the piston pin circlip is spiral wound.
So pistons without rings go on to conrods first, then the piston pin and spiral circlips before rings.
I had to make a tool to get the circlips in. I used a socket extension bar to stabilise fitting the clip, the other side is stabilised once the piston pin is in.
the pics show me trial fitting to a test piston from Wayne Penrose.
I fitted the clips to one side of my pistons being mindful of having room on the other side on the engine for installation of the piston pin and other clip.
The fortified piece and rings went on next and barrels were slowly fed over them with bleeding fingers (those wanky split compressors don't work).
This part of the build was stressful, so much that I forgot to take pictures till it was done.
I had them on the engine before to determine things like shims for deck height and cam timing but no rings and piston pin clips.
To fit normal pistons and barrels: rings on piston, piston pin clip on one side, piston half way into barrel, barrel onto studs, line up conrod, slide in piston pin, add clip, gasket glue around bottom of barrel and push home, repeat.
Because of the stroker crank I opted for pistons with a higher pin height, relieved skirts and standard length barrels. This keeps the width of the engine the same as a standard 2ltr and tinware will fit without stretching it over the heads, bending things around the fan housing or modifying it to make the foam seals fit.
The pin height goes into the oil ring area and on top of that there is a fortefied piece on the bottom of the 3 piece oil ring and the piston pin circlip is spiral wound.
So pistons without rings go on to conrods first, then the piston pin and spiral circlips before rings.
I had to make a tool to get the circlips in. I used a socket extension bar to stabilise fitting the clip, the other side is stabilised once the piston pin is in.
the pics show me trial fitting to a test piston from Wayne Penrose.
I fitted the clips to one side of my pistons being mindful of having room on the other side on the engine for installation of the piston pin and other clip.
The fortified piece and rings went on next and barrels were slowly fed over them with bleeding fingers (those wanky split compressors don't work).
This part of the build was stressful, so much that I forgot to take pictures till it was done.