Offshoreonly.com - Oil temp problem in my 572, need input/advice....

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Quote:

Originally Posted by ICDEDPPL (Post 4199933)

Not every one has your machine work and assembly workmanship Mild Thunder!
Im still surprised your oil pressure don`t drop a bit as the oil gets hotter/thinnner.

I never said it didnt drop with temp. I said earlier in the thread my pressure cold is in 90s, and once up to temp in the 70s while running. Sure after a hard run and come to idle theyll be at 35ish in gear. What they dont do, is drop oil pressure when going from 4000 to 5500.

My operating range is 180-210 on my oil temps. Nothing fancy about my oil system. Stock chevy pumps that mike tkach shimmed for me, proper sized remote oil lines, no hokey restrictive fittings, merc racing thermostatic oil filter heads, canton oil pan with windage tray and trap doors, and a plate cooler.

Before mike and i redid the engines, and shimmed the pumps, i had about 50-60psi at cruise, with pressure dropping to 40-50psi at wot. It wasnt a temp issue, as my temps were good. Only think i can think of was it being all the restricive 90* fittings used in the remote system.

Quote:

Originally Posted by MILD THUNDER (Post 4199946)

I never said it didnt drop with temp. .

Don`t lie to me!!!

Quote:

If im running along at 4000rpm with my oil temp gauge showing 190, and oil pressure at say 70psi, when i nail it to 5600rpm for a few miles, oil temp goes to 210, oil pressure stays at 70psi or better

Quote:

Originally Posted by ICDEDPPL (Post 4200053)

Don`t lie to me!!!

Dam. You got me. My oil temp hits 270 because im running stock coolers , my oil pressure is 16psi at wot. I only run walmart supertech straight 5w oil for that extra top end speed! Lol

What do you guys think about running custom 20w5 weight oil? And maybe an aftluber that pressurizes my oil system when i shut the engine off

Walmart supertech oil ! That gave me the a.m .laugh I was looking for .good point on fittings ,

Quote:

Originally Posted by mike tkach (Post 4198243)

dean, oil temp of 185is ok.i like to see 190 to 210.i agree with matt that the oil may be foaming.i would try brad penn,kendall,or valvoline,all 20w50 and see what happens.

Mike,
Changed the oil to Kendall GT-1 20-50 WT racing oil with ZDDP. Going to test today. And I only dumped in 11 qts, oil is showing "ADD" mark on the dip stick. I'll have the 12th qt with me
Thanks,
Dean

Quote:

Originally Posted by monstaaa (Post 4198248)

could be a simple sensor. they do operate on different ohm ranges. make sure you have the right sender.

M,
The new oil temp sendor that I ordered IS different that the 1 that was in there so I changed that out.
Thanks,
Dean

Quote:

Originally Posted by MILD THUNDER (Post 4200068)

Dam. You got me. My oil temp hits 270 because im running stock coolers , my oil pressure is 16psi at wot. I only run walmart supertech straight 5w oil for that extra top end speed! Lol

If you r going the Walmart oil route I recommend 2 cap fills of head and shoulders for the zinc additive and it will help keep the crankcase clean...

Quote:

Originally Posted by Dean Ferry (Post 4201593)

M,
The new oil temp sendor that I ordered IS different that the 1 that was in there so I changed that out.
Thanks,
Dean

Yes, theres senders for short sweep gauges and full sweep gauges. Plus senders for different gauge models.

Good luck with the testing today! Wish i was on the water today