hey gys i wanna ask is it posibble to do knife edge crank to stock a15 ?? plan to do it to miy engine ?? any suggestion ??

yes why not, I have one for my A14...

Dundee1000: i got a question,any other modification needed (other than crankshaft) when u do the knife edge crankshaft?do we need to modify other things?

You need to re-balance the crankshaft after making it knife-edge

thanks guys...

you could go a crank scraper to get a similar effect, reduces windage in the sump.

anyone have pictures of a knife edged A series crank? I'm very seriously thinking about doing it to an A14 turbo motor I plan to build.

here..

http://datsun1200.com/modules/myalbum/photo.php?lid=5538

hi guys,

can sumone explain (below) what is this mean?i dont really understand it..what is oil gallery "plugs" ?

quoted from lemonhead "Yes I have carried out the oil gallery modification, Any engine rebuild I do from now on I will be drilling out the "plugs" on the oil galleries and cleaning them out, the amount of crap I got out of this crankshaft was unbelievable, for the sake of drilling out the plugs and drilling and tapping threads in the galleries for grub screws (which are loctited and penned over) its well worth the effort."


thank you very much..

the plugs you are referring to are put there when the oil gallerys are drilled into the crank. they are pressed in an peened over, and years ago when i built my first 1200, my engine machinist also drilled them out, tapped them and used grub screws as he had seen sprint car guys revving them that hard that due to high oil pressure and centrifigal force and getting them hot, the plugs popping out.