Is the current thought still pay the price for OEM now or pay the uglier
price of broken parts later?? I recall seeing discussion many moons ago on
this..
Also, shimming the pump.. need some guidance on that. Never done it, not
seen how to do it. Found a Chris Chu post
(http://forum.miata.net/vb/showpost.php?p=182281&postcount=7) that simply
describes it as:
Tracing along the oil path, you'll find a hairpin locking a spring and
piston in a tunnel (around 10mm in diameter). Remove hairpin, add washers
to the top of the stack (closer to the hairpin) and put back hairpin. I
shimmed around 1.5-2mm total (can't remember) and without cooler reaches
close to 6 (90psi) which is higher than enough. With cooler, pressure never
reaches 4 (60psi) but close to it most of the time and should be high
enough.
Remember that shimming oil pressure relief valve increases load on the oil
pump and may introduce potential side-effects. So don't overdo it.
Any clarification/caveats/etc? What is my target oil pressure cold
idle/hot idle/cold cruise/hot cruise?
Wallyman
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