Oil cooling
- Thread starter super diesel
- Start date
No, the down one I'm talking about is way down low on the cooler assembly, and it is also a 10mm allen plug. It is post cooler; that's why I was asking.
edit, looks to be come confusion, Ill grap a picture real quick.
edit x2. Cant find it on my photobucket, Ill grab one tomorrow at Mike's.
edit x2. Cant find it on my photobucket, Ill grab one tomorrow at Mike's.
As far as I know, there are only 2 10mm allen head plugs on the cooler assembly. One is up high and points sort of up toward the manifold. This one is to oil right before it goes to the oil filter, and from what you said, it sounds like this is where you installed your sending unit. The other one is way down low (almost between the lower oil pan and differential on a 4wd) and points down. This port is to the oil after it comes out of the cooler right before it goes back into the engine. If you put your sending unit there, it will give you the coolest possible oil temperature reading. The 8mm allen plugs are into passages that bypass the filter or cooler; the 10mm plugs go directly into the passages that come out of the block or go back into the block.
and considerable shorter legs .75 od with 4.63s on 32" tires
it still cracked a piston though...
it still cracked a piston though...
Did some testing over this past weekend. With 100% stock cooling system I am 180*+ driving around town. This is a solid 25-30* increase compared to having a cooler. This was just unloaded too, no towing. Oil pressure at idle has not changed with no cooler, but 1800rpm should be atleast 42psi and I dropped from 55-58psi to 50psi.
Towed the GMC to the track on my 12.5 runs, truck was 6500 without me in it and trailer 2200, so around 9k lbs with extra tools and crap. RC is all stock, airbox to exhaust tip. Outside air temps were in mid 50's-60's on the way there and on the way home from the track.
Crusing 60mph highest oil temp I saw was 220* This was on the same gauge that my GMC had in it(swapped them the night before, CTS too). Coolant reached 190 max and trans was less than 150. Tapped into same port where you normally tap into for hot oil temp readings; top of oil filter assembly.
Just wanted to get some readings on a stock turbo truck that also uses coolant to cool the turbo.
Crusing 60mph highest oil temp I saw was 220* This was on the same gauge that my GMC had in it(swapped them the night before, CTS too). Coolant reached 190 max and trans was less than 150. Tapped into same port where you normally tap into for hot oil temp readings; top of oil filter assembly.
Just wanted to get some readings on a stock turbo truck that also uses coolant to cool the turbo.
replaced the shorted temp sender before it got hot... stock turbo no secondary cooler.. empty weight im 14k
first load ~3500lbs a pair of 96" and 102" reels from columbus OH to gary IN avg temp was 200-210* headwind of ~15mph or so.. running 65mph
this was from ohara airport to hopkinsville KY 3'x3'x5' 10800lb head wind really not a factor...ran US41 all the way down avg oil temp 190-200*
pick this up in south fulton TN ~7500lb 7'x7'x28' heading to goshen NY... lots of info...
80* day, lots of wind, lots of rolling hills in kentucky.
for those that dont know im running a Hayden 2886 fan clutch for a kodiak 4500 on the truck.. hayden state that the fan is fully engaged by 200* air temp. i cna vouch for that..
avg oil temp 220* and avg ect 195* 10-15* increse in OT is a ~5* increase in ECT 190* you cannot hear the fan.. @65mph. 195* you can roaring way
at ~215* OT the fan is slight on (quite but noticable, the fan was on to one exctant or another 80% of the trip)..
durring the section between louisville and cinncinatti on I71 OT was at or above 220* 95% of the time... the 5% being the two times i stopped for construction traffic long enough to cool everything off.. less then 5 minutes..
i saw 245-250* twice on grades.. engine speed or vehicle speeds didnt seam to make a difference..
oil pressure to oil temp.. with cruising rpm ranging between 2000-2600 oil pressure gauge is a 0-100psi mechanical autometer
when DD the truck i see ~180*OT and 58-60psi OP
empty trailer is see 195* and 45-50psi
loaded 200-220* with op form 38-48psi
if i drop below 2000rpm with 220* OT i very easily drop below 40psi OP.. i cant remeber at what pressure the piston cooling jet close and stop spraying but i know its below 40psi.. since i did not have a OT gauge in the OEM stock engine i cant saw what it saw but can reasonably gues that OP drop enough under a load(s) for piston to stop recieving cooling oil. thus there is a very good possibility it had a hand in the piston failling thanksgiving weekend.
since i do not want to ruin another engine... and im sure my creditors would not apprecitate either...
im will be ordering a perma cool 6 pass cooler, one of these two.. pendign which one i can fit.. i talked to perma cool about my last convo about them stickign 1/2" npt fittings on them.. find out tomorrow.. the plan it to run full flow -10 lines, remote mount filter the coolers run a 5/8" tube it is pointless to run anything bigger.. anything bigger would turn the cooler into a orfice and cause a pressure drop.. my consern is the npt to an fitting becoming an orffice and result in a pressure drop of more than 1-2psi
i have 2 10" 1100cfm e fans from other projects that i will mount on the cooler as well.. i havent desided weather to wire them in full on or switchable configurations..
i had fuel heating issuese as well... i bought a 26k tranny cooler with 3/8s tube (10.5x12" core) mounted it horizontal under my fuel tank.. in 80* ambient temp via natural cirutalion of air, i saw cooler surface temp drop from ~130 to ~90 between intake and outlet of the cooler...parked at idle after coming of the freeway today..
10.5x18"
http://www.summitracing.com/parts/prm-2315/overview/
10.5x21"
http://www.summitracing.com/parts/prm-2318/overview/
i'll post more up when it gets done
first load ~3500lbs a pair of 96" and 102" reels from columbus OH to gary IN avg temp was 200-210* headwind of ~15mph or so.. running 65mph
this was from ohara airport to hopkinsville KY 3'x3'x5' 10800lb head wind really not a factor...ran US41 all the way down avg oil temp 190-200*
pick this up in south fulton TN ~7500lb 7'x7'x28' heading to goshen NY... lots of info...
80* day, lots of wind, lots of rolling hills in kentucky.
for those that dont know im running a Hayden 2886 fan clutch for a kodiak 4500 on the truck.. hayden state that the fan is fully engaged by 200* air temp. i cna vouch for that..
avg oil temp 220* and avg ect 195* 10-15* increse in OT is a ~5* increase in ECT 190* you cannot hear the fan.. @65mph. 195* you can roaring way
at ~215* OT the fan is slight on (quite but noticable, the fan was on to one exctant or another 80% of the trip)..
durring the section between louisville and cinncinatti on I71 OT was at or above 220* 95% of the time... the 5% being the two times i stopped for construction traffic long enough to cool everything off.. less then 5 minutes..
i saw 245-250* twice on grades.. engine speed or vehicle speeds didnt seam to make a difference..
oil pressure to oil temp.. with cruising rpm ranging between 2000-2600 oil pressure gauge is a 0-100psi mechanical autometer
when DD the truck i see ~180*OT and 58-60psi OP
empty trailer is see 195* and 45-50psi
loaded 200-220* with op form 38-48psi
if i drop below 2000rpm with 220* OT i very easily drop below 40psi OP.. i cant remeber at what pressure the piston cooling jet close and stop spraying but i know its below 40psi.. since i did not have a OT gauge in the OEM stock engine i cant saw what it saw but can reasonably gues that OP drop enough under a load(s) for piston to stop recieving cooling oil. thus there is a very good possibility it had a hand in the piston failling thanksgiving weekend.
since i do not want to ruin another engine... and im sure my creditors would not apprecitate either...
im will be ordering a perma cool 6 pass cooler, one of these two.. pendign which one i can fit.. i talked to perma cool about my last convo about them stickign 1/2" npt fittings on them.. find out tomorrow.. the plan it to run full flow -10 lines, remote mount filter the coolers run a 5/8" tube it is pointless to run anything bigger.. anything bigger would turn the cooler into a orfice and cause a pressure drop.. my consern is the npt to an fitting becoming an orffice and result in a pressure drop of more than 1-2psi
i have 2 10" 1100cfm e fans from other projects that i will mount on the cooler as well.. i havent desided weather to wire them in full on or switchable configurations..
i had fuel heating issuese as well... i bought a 26k tranny cooler with 3/8s tube (10.5x12" core) mounted it horizontal under my fuel tank.. in 80* ambient temp via natural cirutalion of air, i saw cooler surface temp drop from ~130 to ~90 between intake and outlet of the cooler...parked at idle after coming of the freeway today..
10.5x18"
http://www.summitracing.com/parts/prm-2315/overview/
10.5x21"
http://www.summitracing.com/parts/prm-2318/overview/
i'll post more up when it gets done
Only with cold oil though. Someone did a test a while ago, and with hot oil, they shot oil across his shop at something like 10 psi. I think it was nwpadmax on DP.
I dug up the posts. Here's the cold test if you care to read it and see the pictures. http://www.dieselplace.com/forum/3-.../151060-lets-talk-pistons-18.html#post1734432
The hot test is the one that is most interesting. It is just a couple posts down from the cold test I linked above, but I'll quote it here for reference.
The hot test is the one that is most interesting. It is just a couple posts down from the cold test I linked above, but I'll quote it here for reference.
nwpadmax said: