09-02-2007, 04:25 PM
|
 |
CC Member
|
|
|
Join Date: Mar 2001
Location: Cinnaminson,
NJ
Cobra Make, Engine: Cobra Fibercraft Bodies 427 S/C, 351W disguised as a 427.
Posts: 391
|
|
Not Ranked
The way my system is plumbed you are correct, the oil to pressurize the system is drawn from the oil pan. However, the oil is forced through the oil filter before being delivered to the engine so metal is not a problem. I agree that unfiltered oil should not be pumped into the engine and had the same concern until I studied the schematic. If you think about it, the oil route using the Preluber is the same as when drawn from the pan via the oil pump; pan -->oil pump -->oil cooler --> oil filter --> engine bearings. I run a Canton T-sump road race pan. There is a fitting on the side of the sump that I used for the preluber pickup. Therefore oil is sucked from approximately one inch up from the bottom of the pan, actually higher in the sump than the oil pump pickup is located (1/2" from the bottom). There is indeed a check valve in the Preluber unit that prevents reverse oil flow back to the pan. Unlike the Accusump, this powered system is great to use to pressurize the engine following an oil and filter change. Just turn the key to ON and allow the unit to build pressure. I have noted that following an oil and oil filter change on an engine with an oil cooler it does take several seconds to build oil pressure at the first start. Without this system the engine would have to be cranked and run without oil pressure for that several seconds until all the air is purged.
For those individuals concerned about loss of oil pressure during cornering, etc. this should never happen if the oil pickup screen was set up correctly to begin with and if there is a proper oil level on the dipstick. Since most of us run a mechanical oil presure gauge and might not be looking at it if and when the oil pressure suddenly drops to Zero, I offer the following suggestion: on the oil pressure gauge fitting on the side of the block install a 1/8 NPT T fitting to allow installation of both the mechanical capillary tube AND an electric sending unit. Plumb the sending unit to a red dash light and a buzzer. If the oil pressure takes a nose dive the light will illuminate and the buzzer will warn you immediately to kill the engine.
__________________
Political correctness is a doctrine, fostered by a delusional, illogical minority, and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."
Last edited by SuperHart; 09-02-2007 at 04:47 PM..
|
My oil has gone through the filter first before going into the accusump tank. I hope there is some screens or filters in the lines going and coming from oil pan and into block. Is there a check valve to stop the oil from going back into the oil pan through the supply line?
. There was a company that used the dipstick hole to supply oil to a little pump for peroiling a motor. Pump was very strong and it would suckup the crap in the bottom of oil pan if the hose was too long. There was NO filters on the hose. The company was sued and went under. I know you change your oil on a regular basic, but if a bearing starts going bad and shaves, your peroiler could suck up the metal and could spin a bearing and loose the whole motor. 
Hybrid Mode
