having the stat at the end of the circuit wouldnt work for another reason, hot oil runs to the cooler, gets cooled, then runs back to the stat. stat says ooh cool oil, i'll stay quite closed. the stat would only open if the oil was hot, useless.
12 is the feed pipe, when i fitted my engine i was so much in a hurry to see if it would start i left the cooler pipes off thinking not very much oil would come out, i was well wrong! it seems the cooler is pressurised all the time and the thermostat open to let the oil flow back
well I don't know - I wish I'd taken more notice of which outlet had dumped all my oil out the car onto my neighbours nice clean drive after I though I'd back the car back into the garage after taking the cooler off - using the 'cold engine means stat closed so no worries' theory.
think on this : if anyone ever gets a leak in the cooler, or pipes, they always lose their oil quite rapidly, no matter what the engine temp - ergo, the cooler system is always pressurised.
the stat gets it's temp from the oil in the pump - so it merely opens to allow the already pressurised feed to return, thus cooling the oil.
what's important here is oil flow Odders - you're in-line sensor will not report the oil temp properely unless the stat is substantially open - what you need is an inline-stat in order for your theory to work - then you could put it in either pipe.
yep, basically the result ive come up with, thinking about it. I think the inline system is purely for aftermarket coolers where flow is 100% all of the time
I could stick with this ihline method but experiece some lag in getting a reading, which i dont like the idea of.
Ive pretty much consigned myself to the sump method. Ive got a spare oil level sensor and back plate so i can have a go at tapping that, if its successful i can fit it.
Only thing that worries me about the oil level dudad is its quite high up from the bottom of the pan. and the level sensor is dog leg so is lower than the plate face. I feel much more comfortable tapping that plate than the actual sump though.
here's a thought - why not attach the sender vertically to the level sender so it's in the oil, and just drill a small hole for the wire ? - oil is not known for it's conductive properties - the level sender wires are exposed inside.. so..
all you need to sort out is how to fix it on there - a stainless steel tie wrap or two should be just the job.