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#1 |
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Location: Sheboygan Wi
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Anybody have an idea of the volume's and pressure's of there various pumps for the various B, and RB wedge engines ! Or what could be the cause of too MUCH oil pressure ? This on my SS Hemi, which has a Milodon dual line oil system ! I have 85# at idle, and over 110 when you wing the gas ! ! I've changed springs etc ! I've have been told to take the Milodon pump out and replace it with a stock pump but use the Milodon cover, and filter mount, and dual pickup ! That scares me ! Anybody have any ideas, this is a Fresh Rebuild ! ...John
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John Lang 365 STK, SS |
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#2 |
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weight/viscosity of oil ---are you using only Castrol/Mobil1/Red Line/ Royal Purple oils and NON synthetics for the break in? ----tight clearances when rebuilt--restriction in the system lines kinked too many bends etc.---wrong oil filter restricting the oil--- too high a relief spring--- did you open up the oil passage on the pump to 1/2 inch from 3/8 inch ?-- remember pressure IS NOT Volume!!! restrictions increase pressure--also might contact 440source.com for their adjustable oil pump pressure regulator--- part # 200-1093 $24.95--- tele 775-883-2590---FED 387
Last edited by FED 387; 08-10-2015 at 12:43 PM. |
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#3 |
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I have my back up pump on Ebay for sale. It is a high volume pump from Westcott that is good. It will run 55-60 down track and 35-40 at idle with race oil. Just selling off all my extra stuff to fix my new piece that I broke at Columbus. John, Ollie, and Dave can rest easy at Indy.
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#4 | |
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A coupe things he said in particular was that the big pump just eats horsepower and the pan was way overkill for that particular B engine because they have really good drain back characteristics . As for the pressure issue it may be an issue with the bypass/pressure relief circuit flow capacity. BTW that engine worked just fine with the Milodon pick up and stock pump.
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Bill Edgeworth 6471 STK |
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#5 |
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Just a note to THANK all of you for the response's, I have also changed Gauges be for I change pumps tomorrow ! ..Thanks again, Race Safely and have a good time ! John
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John Lang 365 STK, SS |
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#6 |
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To fix the high oil pressure, the easiest way out is to put an externally adjustable relief valve in the oil pump replacing the stock spring setup. Only takes a few minutes. Milodon and 440 source offer them. $20 and you are done.
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#7 |
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I have had the adjustable valve and reset everything, and it dropped from 85# at idle to 63# at idle ! But when you winged the throttle the pressure still would go over 110# !!!! I've talked to several well known Hemi builders and was told to get a Stock pressure oil pump, and use the Milodon cover and filter mount ! I blocked off one of the oil pickup's in the oil pan, and I don't have the new pump yet, possibly Sat ! Thanks again, I'll post after I get the new pump setup ! I've raced Mopar's for years as in 30+ years and never had this problem ! Wish me luck !!! John
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John Lang 365 STK, SS |
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#8 | |
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#9 |
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Oil Problem fixed ! 383 pump, w/milodon , cover, etc. ! 72# pressure at idle, 80# when you hit the throttle up to 4000 ! Temp at 130 ! ...John
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John Lang 365 STK, SS |
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