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What have you done to your CUCV today/lately - Part 2

The FLU farm

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I put the battery tester on the front battery - checks good. Aft batter checks bad so it's on the charger. Likely that's all it is.
Don't overlook that both batteries should ideally have come off the production line one after the other.

In other words, never replace just one in a dual (or more) battery application.
 

CARC686

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Finally got my Supercharged P400/765R4/241 drivetrain finished and ready to swap into my M1028. Now if I could just find the time………
View attachment 932514
Well, my jaw dropped if that's what you were going for. Sweet Jesus.

Edit: Ten minutes later, I'm still studying the picture. Is the thing on the top right a cartridge oil filter canister?
 
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Sharecropper

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Well, my jaw dropped if that's what you were going for. Sweet Jesus.

Edit: Ten minutes later, I'm still studying the picture. Is the thing on the top right a cartridge oil filter canister?

That “thing on the top right” is a Spinner centrifugal oil filter. It is powered from a pressurized oil line. At 35 psi a rotating chamber on the inside of the housing spins at 6,000 rpm and contaminants in the oil are thrown outward against the outer wall of the chamber. The clean oil in the center of the chamber then gravity drains down through the gasketed orifice in the valve cover. I had to fabricate a custom bracket which mounts onto the intake bolts and positioned the Spinner in the correct location. I plumbed the pressurized oil supply from the port on the front of the passenger side head which normally would provide oil to a turbo charger. Because I’m supercharging the P400 instead of turbo’ing it, that port was perfect to power the Spinner. At 6,000 rpm the oil is cleaned to sub-micron purity.
 

CARC686

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I've heard of centrifuge oil filters for making black diesel, but never thought about putting one on an engine. Is there an element on the chamber walls to trap contaminants? There is quite a lot of custom bracketry going on here. You made it yourself? Either way, it's impressive, but even more so if homebrew.
 

Sharecropper

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I've heard of centrifuge oil filters for making black diesel, but never thought about putting one on an engine. Is there an element on the chamber walls to trap contaminants? There is quite a lot of custom bracketry going on here. You made it yourself? Either way, it's impressive, but even more so if homebrew.
There’s no need for an element. The centrifugal force of 6,000 rpms spinning the oil throws all contaminants, even blow-by carbon, against the inner wall of the rotating vessel inside the housing. The oil stays honey colored. Still should change the oil and traditional filter at regular intervals, at which time the outer housing of the Spinner is removed with a single knurled nut on top, then the inner housing lifts off and comes apart so the contaminates can be scraped out. The housing is then washed in a parts washer and reinstalled inside the housing. Google it - Spinner centrifugal oil filter. And yes, I designed & fabricated everything myself.
 

Mainsail

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Installed the two new batteries and the cable set I've had laying around for three years or so. Truck fired right up, but it sounds like absolute crap. Banging noise that went away when getting the RPM above idle. Tightened the belts but it didn't help. The longer I had it running the worse it sounded, like something is about to let go inside the motor. When I left it, it was making a hella racket at any RPM.

Oil is good, maybe a half quart low.

The engine a goner all of a sudden?
 

Sharecropper

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I would think so.

Have had vehicles that only revved to under 5,000 and the only filtration they had was a centrifugal filter. In those it was built into the crankshaft pulley.

The 6,000 rpm is the revolving speed of the Spinner at 35 psi oil pressure, not engine rpm’s. I doubt my P400 will ever see more than 2500 engine rpm’s. Just wanted to clarify that.
 
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