QT - difference between low level and high level
 

anyone know the difference in qt's between the lowest level point on the dipstick and the highest point on the high level range on a 6.4L engine?

Im considering buying an oil preluber and need to think thru the size of the pre-luber vs excess oil levels in the event of a pre-luber solenoid failure.

if the solenoid in the pre-luber were to fail...at engine idle...the tank would discharge into the engine which wcould cause an oil over fill condition depending on the size of the pre-luber and the actual level of the oil sump as indicated on the dip stick.

for example

1.6 qt preluber would probally not over fill the oil level if the engine oil level when the pre-luber is fully charged was targeted to the low level side.

3 qt preluber would probally over fill the oil level by 1 qt if the diff between high and low is 2 qt's if the control solenoid failed. 1 qt over...I dont think this would be a problem.

5 qt preluber would probally over fill the oil level by 3 q'ts if the diff between high and low is 2 qt's if the control solenoid failed. 3 qt over...mixed feelings about this one...not real likely to pop glow plug grommets and such vs the likely hood of solenoid failure....

7 qt preluber would probally over fill the oil level by 5 qt if the diff between high and low is 2 qt's if the control solenoid failed. 5 qt over...this one I think would be bad... real likely to pop glow plug grommets and such vs the likely hood of solenoid failure....



Until I know more about the level differences....the 3 Qt preluber would probally be the safest bet in the event of a solenoid failure

here's what I am looking at.

AutoEngineLube Pre Lube System Reduces Engine Wear Up To 60%




https://cimg2.ibsrv.net/gimg/www.for...909338011a.jpg

Why? The bottom end is overbuilt as it is.

I would say the 6.4 bottom end would be over built if there were never any problems encountered with the bottom end. never any piston rod slapping, lifter issues, crank bearing spinning, cam lobe wearing, rocker tips (oil pressurized by the lifters), ring wear leading to premature blow by, etc.



aside from most of engine wear in general occurring during startup, and aside from poorer oil bonding to metal surfaces in diesel engines that have regen cycles (due to lower oil bonding to metal as oil is diluted with fuel), and aside from lifter mushrooming due to oil related issues, and aside from cam lobes flattening due to oil related issues and aggressive cam angles, and aside from rocker tip wear from poor oil lubrication, and aside from spun crank bearings from oil related failures...again probably related to poor bonding of oil to metal as fuel dilution occurs, aside from piston rod slapping issues again probably related to higher wear due to poor bonding of oil to metal due to fuel dilution, aside from ring wear leading to premature blow by, etc. etc, etc, etc

aside from the 6.4l problems...in general...I want to eliminate dry starts.

I always thought the bifference between both lines was 1qt. But maybe that's sticking in my head from my old gasser days.

So after digging into this some....I’m going with the D kit which has a 5 qt resivior.

Why not just buy another brand? You seem to post nothing but negative for the 6.4L

Im on the look out for an f-650 with Cummins and Allison. Everything I added to this f-450 can be transferred.

This is interesting. I have never even heard of such a system. Pretty neat if you ask me. Would be interested in seeing an install with pics. Just curious on how it installs and looks.

[QUOTE=Firefighter 1406;17535072]This is interesting. I have never even heard of such a system. Pretty neat if you ask me. Would be interested in seeing an install with pics. Just curious on how it installs and looks.[/QUOTE
yes, oil pressure at key up before the engine spins would lube up a lot of the worry-about parts.

The tank needs to go on one of the chassis beams.

i have a billet oil cap for the oil filter that had a line that runs to s manifold for my oil by pass filter and I’ll probslly connect the lines there on the engine in side of the manifold.

should get it in a few days.

Naysawer out

i know for sure the dipstick operating range on the 7.3 is 2 quarts between the full and add marks. I've been told this is the same with the 6.0 and 6.4, but i haven't verified it myself.

You find systems like this on big horsepower marine engines in the off-shore boats. The motors sit for long durations like from Fall to Spring/Summer so the bearings are dry and the oils channels potentially drained come the start of the new season. Many of those motors are only good for about 900 hours before requiring rebuild, so any extension on life is a good thing - they are often 900 to 1200 horsepower.

Sterling.

the system should arrive tomorrow.

LOL fritz!!!

Look forward to seeing how it goes.

so im going thru the contents and the instructions say you can run straight grade oil in your engine with this gadget installed.

i had to stop and think about that......

with 5W40 its better for cold start up's.....but if you have this gadget, you can run straight 40 because the preluber will pressurize your oil system before the engine rotates.

so I guess I can run 15W40 all year long.

I'll probably do a quick and dirty install tomorrow.