I have now my modified cylinderhead , my used and bigger , longer valves form another Jap car and my homegrinded camshafts.
I now need some link between the camshafts and the valves so I will then , in a DIY fashion , modify my old OEM valve lifters that used to have shims , to a shimless type.
Here are my OEM lifters and i have removed all the shims
Shims = dead weight and i dont need that at 8500 + rpms
Well , i ll just put the lifter into my lathe and remove this edge and adjust the height as i want it to be.
Almost done here now
Grinding a nice radius at the top of the lifter
Here is the finished result , LHS is OEM and RHS is mine without shim.
Does it work ?,,,,,have a look later and find out.
Ready for action
The weight of 1 shim
Weight of one lifter before i start working it
Weight of modified shimbucket
Doesnt look like much but put all the shims at the scale and it is another ballpark
Low weight on these parts in the valvetrain is very good and at the same time i dont need to worry about shims coming loose / dropping out at my anticipated 8500+ rpms gearshifts.
Controlling the ” footprint ” of the cam-lobes after process
DIY lifters , shimless and valves to be used
Here are all the DIY details that will help providing more powa` in the future in the Maxi Micra
Now there are a bit fewer things remaining in the cylinderhead job so have a look in later dudes !