Watch How Differential Lube Behaves Behind The Cover
#1
09-25-2018, 02:12 PM
Watch How Differential Lube Behaves Behind The Cover
An interesting set of tests by Banks Engineering on the effects differential covers have on our differential lubricant. They rigged a clear plastic cover to film what happens at different speeds. It'll be a 3 part series, of which this is part-1 https://www.youtube.com/watch?v=9-yG...ature=youtu.be Notice how the lube climbs the ring gear & is immediately aerated. Seems those of us that opt for more vicious lube & aftermarket covers might want to rethink our decisions to deviate from the stock specification call outs for fluid viscosity & rear cover internal shape. The rear cover is shaped the way it is for good reason.
Anyway enjoy the info, I sure have.
EDIT: Part-2, after market differential covers
EDIT: 11/5/19 The final product. https://www.ford-trucks.com/forums/1...iff-cover.html
Anyway enjoy the info, I sure have.
EDIT: Part-2, after market differential covers
EDIT: 11/5/19 The final product. https://www.ford-trucks.com/forums/1...iff-cover.html
#6
09-29-2018, 06:19 PM
He's eaten up with repeatability, they were stepping into the unknown, so likely ran into some unexpected variables that needed some out of the box Imagineering to solve to his satisfaction. He doesn't do things haphazardly, he really is serious about what he does, so will take the time needed to Accurately satisfy his curiosity.
#7
09-30-2018, 07:56 AM
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#8
10-07-2018, 10:25 AM
This is the reason they haven't proceeded to part-3. They milled off a flat rear cover surface that had fins & installed a Plexiglas window with surround LED lighting so he could better see what was going on with lube flow & aeration at various speeds with a flat internal surface rear cover & at 50mph you can hear some ominous mechanical clunking sounds that suggest the ring & pinion weren't being properly lubed, so they've not proceeded to Part-3 yet.
#9
11-18-2018, 01:36 PM
Bump:
Update:
An interim step in the rear differential cover project. Not a lot of info in this video, but a Cool looking design (no pun intended), he seems to be driving toward coming up with, based on what they're learning on this investigation. He's gone for & has a patent pending on a ram air cooled cover, half of which he shows in this video. https://www.bankspower.com/news-medi...-power-videos/ Scroll down & click on "Perfecting The Design"!!! More to come!!!
Update:
An interim step in the rear differential cover project. Not a lot of info in this video, but a Cool looking design (no pun intended), he seems to be driving toward coming up with, based on what they're learning on this investigation. He's gone for & has a patent pending on a ram air cooled cover, half of which he shows in this video. https://www.bankspower.com/news-medi...-power-videos/ Scroll down & click on "Perfecting The Design"!!! More to come!!!
#10
11-19-2018, 10:59 AM
Yep. I was beginning think he was designing his own “perfect” solution before posting the final video. And what do you know.
Think I need to re-watch the first videos while recovering from Turkey day. I don’t remember him showing proof of all those claims in his most recent video.
Still, glad to see they’re devising another solution for the market. I could care less about additional capacity or fancy looks. Just give me a drain hole. A viewing window is an added bonus for a quick visual check of oil level and condition.
Think I need to re-watch the first videos while recovering from Turkey day. I don’t remember him showing proof of all those claims in his most recent video.
Still, glad to see they’re devising another solution for the market. I could care less about additional capacity or fancy looks. Just give me a drain hole. A viewing window is an added bonus for a quick visual check of oil level and condition.
#11
11-19-2018, 12:29 PM
If swapping out the stock cover, one needs to make sure the pinion gear is getting the needed bath from the ring gear picking up lube & carrying it over the top to sling it onto the pinion, without over aerating the lube.
Lots of different goings on with the lube, with the various internal configurations & capacity covers, which don't seem to have been completely thought through. Will be interesting to see what they discover & how it all plays out.
Lots of different goings on with the lube, with the various internal configurations & capacity covers, which don't seem to have been completely thought through. Will be interesting to see what they discover & how it all plays out.
#12
11-19-2018, 08:29 PM
Okay, I got back through the videos again today. Actually was still pretty interesting. I generally agree with everything he’s talked about. Basically, a bad cover design can reduce the flow of lubricant to the forward part of the housing. And too much lube can drive more heat into the system, possibly offsetting the increase cooling features of the cover and making the system less efficient.
We can speculate on what level of lube is needed on the pinion gear. It’s feasible some or all of the current aftermarket solutions are adequate. The cooling is going to be interesting since it sounds like they’ve put gauges on all those aftermarket covers for the testing we’ll see in the final video.
I’m very curious to see what type of cover they’ve engineered. He gave us a glimpse in the latest video, but a ram air cooling system? Wow. And I hope the existing aftermarket responds. More options for us is more-better.
We can speculate on what level of lube is needed on the pinion gear. It’s feasible some or all of the current aftermarket solutions are adequate. The cooling is going to be interesting since it sounds like they’ve put gauges on all those aftermarket covers for the testing we’ll see in the final video.
I’m very curious to see what type of cover they’ve engineered. He gave us a glimpse in the latest video, but a ram air cooling system? Wow. And I hope the existing aftermarket responds. More options for us is more-better.
#13
11-19-2018, 10:31 PM
#14
11-28-2018, 05:33 AM
Postmaster
#15
11-28-2018, 07:13 AM
Postmaster
by the way...
in the early 60's Eaton.. made a clear rear cover for there larger trucks drives... to show how gear lube flowed at Zero degrees....
and some brands of lube was solid at zero.. and provided almost no lubrication...
I think it was made on 16mm film.... and provided to dealers.
in the early 60's Eaton.. made a clear rear cover for there larger trucks drives... to show how gear lube flowed at Zero degrees....
and some brands of lube was solid at zero.. and provided almost no lubrication...
I think it was made on 16mm film.... and provided to dealers.