O.K. guys, Im back,,this post may be alittle mixed up,, I'm going to try to write as it comes to me,,,,
As before, rad appeared good,, got the new pump, I found a listing for a 72 nova w/HD cooling,, the pump came aluminum and had an empeller plate on the back,,, Start fan set up from scratch, stock fan,,,mmm,, stock fan doesn't fit the sm. dia pulley pattern,,I always used a flex fan,,went back got the stock pulley,,fan (16.5") doesn't clear tranny lines,, got 90's, reconfig,,fan still doesn't clear the 90 line closest to the lower rad hose,,abandon rad cooling and install tranny cooler up front,,complete reassemble, stare at it for awhile,, ready to go,,by the way digital gauges still in place, oil in rear of pass./lower blk,,water in head,,mechanical gauges also installed,, oil in place of dummy light, water in thermo housing below stat, (disconnected manifold water supply), also put a mechanical 13LB rad cap with gauge,,I even got the thing to check the antifreeze mixture,,stare at it longer,, ready to go,, Start up,,40 psi oil, idled 15 min, got temp to 235 d&m (digital&mechanical), 17psi oil,, drive car,, little cruising,, little tire chirping, got temp to 207,, stop sign,, 0-3 psi oil at idle, drive home psi comes to 17 instantly,,home cool down,,, BTW I talked to Tom Langdon a while back on the oil press. He said 6-7ish at idle was normal with the tolerances of after market bearings, givin psi comes up with rpms,,He said stock ones were installed raw, and line bored to the cam,,now with all the aftermarket, bearing are designed to fit all,, some good, some not so good,,quality control,,and even the tolerances in the pump gears could kill psi,,????
RESTART,(it is evening 7:15 so not sunshine hot)
water 150 d&m 35 psi oil,,
7:20, 205d,,197m,, 20-17 oil psi d&m
7:24 224d,,220m,, 19-15 oil psi d&m
add big floor fan to get air across rad,,
7:26 230d&m get in and drive cruise only,, came down 197d, at 50mph 1500rpm oil psi is at 20,, back home park,, stare at it again,,BTW the whole time I'm getting out and checking the mech. gauges, they seem pretty close, except the rad, it seems to always be between 160-190, unless I was real hot, I seen it get to 200's. bedtime, (actually dancing w/t stars)
Yesterday I drove to the local rad shop..it's been there forever, and has some old timers for advice,, the first guy looked, stated,"blowing exuast into cooling system" I looked, shook my head and asked why,, He said the upper hose was to hard,,?? it always seemed to be that way,,another suggestion was to put a reducer in the heater circuit, to force more flow through the rad,,,we talked, I left,,As I left I thought, I had a vette I kept outside & when I started it, it always blew water,, the exuast condensed, at cool down,or something,my father explained and blew it out,,,??? the car never had cooling problems or failures,,my six blows water when it starts, and it's garage kept,so it doesn't get the moisture from outside,,it stops blowing after the exuast is hot,,but??? What do you guys think,,??? I'm really lost now,,
