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Help With High Oil Pressure! #93908 07/24/08 06:02 PM 07/24/08 06:02 PM
Joined: Jan 2003 Posts: 1,019 Eau Claire, WI ResQ911 OP super gas
ResQ911 OP super gas Joined: Jan 2003 Posts: 1,019 Eau Claire, WI	I have a new 496 stroker engine. (125 mi.) I am getting 75 psi oil pressure at hot idle. Used a buddies spare gauge to check (Idles a bit high) 30 weight break in oil Melling HV pump My rallye dash gauge reads over high mark at 4000. I am guessing around 100 psi. What do you think? Thanks,

Re: Help With High Oil Pressure! [Re: ResQ911] #93909 07/24/08 06:03 PM 07/24/08 06:03 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH Taking time off to work on my car
BradH Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Get a softer pressure relief spring for the pump (out of a standard pump), or buy one of those Milodon externally-adjustable pressure relief springs.

Re: Help With High Oil Pressure! [Re: BradH] #93910 07/24/08 07:33 PM 07/24/08 07:33 PM
Joined: Jan 2003 Posts: 2,521 Richmond Va, KeislerTKO 60... V VanishPt master
VanishPt master V Joined: Jan 2003 Posts: 2,521 Richmond Va, KeislerTKO 60...	or go to Advance Auto and look in the HELP section. They sell a grab bag of Copper washers , one of which is .050 thick and will thread over the plug.( you have to screw it onto the plug). Put in on top of the factory washer. lowered my pressure about 6-8 lbs.

Re: Help With High Oil Pressure! [Re: ResQ911] #93911 07/24/08 08:49 PM 07/24/08 08:49 PM
Joined: Jul 2008 Posts: 30,537 Florida STAYcation dOc ! The village idiot's idiot
dOc ! The village idiot's idiot Joined: Jul 2008 Posts: 30,537 Florida STAYcation	What temp is the oil ?

Re: Help With High Oil Pressure! [Re: dOc !] #93912 07/24/08 09:01 PM 07/24/08 09:01 PM
Joined: Feb 2008 Posts: 233 NH Fastback67 enthusiast
Fastback67 enthusiast Joined: Feb 2008 Posts: 233 NH	Cold engine or Hot engine?

Re: Help With High Oil Pressure! [Re: ResQ911] #93913 07/24/08 09:44 PM 07/24/08 09:44 PM
Joined: Nov 2007 Posts: 21,854 Kirkland, Washington Pacnorthcuda Too Many Posts
Pacnorthcuda Too Many Posts Joined: Nov 2007 Posts: 21,854 Kirkland, Washington	Quote: I have a new 496 stroker engine. (125 mi.) I am getting 75 psi oil pressure at idle. Used a buddies spare gauge to check (Idles a bit high) 30 weight break in oil Melling HV pump My rallye dash gauge reads over high mark at 4000. I am guessing around 100 psi. What do you think? Thanks, I think in all probability you don't NEED or WANT that HV pump!

Re: Help With High Oil Pressure! [Re: ResQ911] #93914 07/24/08 09:46 PM 07/24/08 09:46 PM
Joined: Feb 2003 Posts: 2,815 Sobieski Wi B bee1971 master
bee1971 master B Joined: Feb 2003 Posts: 2,815 Sobieski Wi	My 71 Bee 75 psi at idle - Will creep up till about 85-90 psi if i get on the throttle - OIL COLD 45 psi at idle - 75 psi cruising down the highway - Stays at 75 psi at higher rpms - OIL HOT Melling high volume oil pump - Been running my motor like this since engine rebuild in 1999 Oil pressure hasnt changed in 10 years - Factory gauge cluster and Auto Meter Ultra-Lites 1971 Dodge Charger Superbee 2011 Ram Sport 1500 Quad Cab Deep Water Blue Loaded Siberian Huskies

Re: Help With High Oil Pressure! [Re: ResQ911] #93915 07/24/08 09:50 PM 07/24/08 09:50 PM
Joined: Aug 2003 Posts: 4,463 Rome, PA Ryan_340 master
Ryan_340 master Joined: Aug 2003 Posts: 4,463 Rome, PA	I just helped a friend take the Melling HV pump out of his 340 and replace it with a standard Melling pump because of this same problem. It will ruin the bearings if you don't get it taken care of. 1972 Power Wagon W100 1973 Power Wagon W200 1971 Duster 1972 Dart Swinger 3-1972 Demons

Re: Help With High Oil Pressure! [Re: bee1971] #93916 07/24/08 10:05 PM 07/24/08 10:05 PM
Joined: Feb 2008 Posts: 233 NH Fastback67 enthusiast
Fastback67 enthusiast Joined: Feb 2008 Posts: 233 NH	Quote: My 71 Bee 75 psi at idle - Will creep up till about 85-90 psi if i get on the throttle - OIL COLD 45 psi at idle - 75 psi cruising down the highway - Stays at 75 psi at higher rpms - OIL HOT Melling high volume oil pump - Been running my motor like this since engine rebuild in 1999 Oil pressure hasnt changed in 10 years - Factory gauge cluster and Auto Meter Ultra-Lites This sounds just about right to me Best advice... contact the pump manufacture and get their opinion first before jumping to conclusions. I don't really see this as a problem...

Re: Help With High Oil Pressure! [Re: Fastback67] #93917 07/24/08 10:25 PM 07/24/08 10:25 PM
Joined: Jan 2003 Posts: 1,436 Oklahoma City OK Cudajon pro stock
Cudajon pro stock Joined: Jan 2003 Posts: 1,436 Oklahoma City OK	New engine, whats the problem. Wait till its got a thousand miles on it before you do anything. My 494 has been running oil pressure like that for 5 years. My son's SRT10 pickup runs 80pds all the time. The old bearings used to wash out with high oil pressure, haven't seen it in 20 years and always suspected the conclusions back then. http://www.youtube.com/watch?v=4J3K94cRC1c

Re: Help With High Oil Pressure! [Re: Cudajon] #93918 07/24/08 10:41 PM 07/24/08 10:41 PM
Joined: May 2006 Posts: 2,046 ky. K kenworth_goose top fuel
kenworth_goose top fuel K Joined: May 2006 Posts: 2,046 ky.	I don't see the problem with your oil pressure. I have built many mopars with 100psi cold and they kept 75psi or higher hot that are still runing and have lasted for years. That myth about washing a bearing is just that, a myth. Always remember good volume and pressure it will last for ever. What is the # 1 reason for bearing failure? Lack of oil or lack of oil pressure! Do you really think all these manufactures could sell all these parts if they told us how to make things last for ever?

Re: Help With High Oil Pressure! [Re: kenworth_goose] #93919 07/24/08 11:01 PM 07/24/08 11:01 PM
Joined: Jul 2008 Posts: 30,537 Florida STAYcation dOc ! The village idiot's idiot
dOc ! The village idiot's idiot Joined: Jul 2008 Posts: 30,537 Florida STAYcation	Some years ago Mr Personality did an oil article for National Dragster and it was most interesting..... ALL that huge oil pressure does is coat the cyl walls and make the rings work harder than they should and LOTS of oil gets past them. AND ...it costs power to drive the rotating mass through all that oil mist and droplets PLUS it costs power to drive that pump harder than necessary. If memory serves ... he was running 40 or 50 psi with tight(.015 or so) rod side clearance..... in a 500 inch P S motor.

Re: Help With High Oil Pressure! [Re: ResQ911] #93920 07/24/08 11:02 PM 07/24/08 11:02 PM
Joined: Aug 2005 Posts: 1,074 Wichita Kansas CH3NO2 super stock
CH3NO2 super stock Joined: Aug 2005 Posts: 1,074 Wichita Kansas	stick one of these in and adjust it to whatever you want. 4573984-pressureregulator.jpg (112 downloads) Engine by DeTar http://www.kansasbadman.com

Re: Help With High Oil Pressure! [Re: CH3NO2] #93921 07/24/08 11:26 PM 07/24/08 11:26 PM
Joined: Jan 2003 Posts: 1,019 Eau Claire, WI ResQ911 OP super gas
ResQ911 OP super gas Joined: Jan 2003 Posts: 1,019 Eau Claire, WI	Quote: stick one of these in and adjust it to whatever you want. Where can I get one? I think I will do an oil change and get the straight weight out of there before I do more. I thought about switching back to a non-hv pump if that doesn't work. Just worried about this high of pressure. Also kind of tired with the oil coming out breathers/covers all over newly painted everything.

Re: Help With High Oil Pressure! [Re: ResQ911] #93922 07/25/08 09:33 AM 07/25/08 09:33 AM
Joined: May 2006 Posts: 2,046 ky. K kenworth_goose top fuel
kenworth_goose top fuel K Joined: May 2006 Posts: 2,046 ky.	If you are getting oil out of the engine you have crankcase pressure problems that have nothing to do with oil pressure.

Re: Help With High Oil Pressure! [Re: kenworth_goose] #93923 07/25/08 11:00 AM 07/25/08 11:00 AM
Joined: Jan 2003 Posts: 33,005 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 33,005 Grand Prairie,Texas	Oil coming out of the valve covers is a blowby problem not an oil pressure problem. Are you running a PCV in the system or do you just have two breathers?

Re: Help With High Oil Pressure! [Re: stumpy] #93924 07/25/08 11:26 AM 07/25/08 11:26 AM
Joined: Jan 2003 Posts: 1,436 Oklahoma City OK Cudajon pro stock
Cudajon pro stock Joined: Jan 2003 Posts: 1,436 Oklahoma City OK	Big problem with strokers (ask me how I know) I pretty much have it under control But I've actually considered a vacuum pump to the engine. I'm running one now on my power brakes (off a cadillac) and it has worked good, don't know if it is strong enough for the engine though. http://www.youtube.com/watch?v=4J3K94cRC1c

Re: Help With High Oil Pressure! [Re: stumpy] #93925 07/25/08 01:28 PM 07/25/08 01:28 PM
Joined: Jan 2003 Posts: 1,019 Eau Claire, WI ResQ911 OP super gas
ResQ911 OP super gas Joined: Jan 2003 Posts: 1,019 Eau Claire, WI	Quote: Oil coming out of the valve covers is a blowby problem not an oil pressure problem. Are you running a PCV in the system or do you just have two breathers? Two breathers

Re: Help With High Oil Pressure! [Re: ResQ911] #93926 07/25/08 01:37 PM 07/25/08 01:37 PM
Joined: Jan 2003 Posts: 33,005 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 33,005 Grand Prairie,Texas	I'd start by installing a PCV set up in one cover to replace a breather. You need a breather on one side and the PCV on the other for cross flow.

Re: Help With High Oil Pressure! [Re: CH3NO2] #93927 07/25/08 08:34 PM 07/25/08 08:34 PM
Joined: Mar 2005 Posts: 2,060 Pendleton NY T terzmo top fuel
terzmo top fuel T Joined: Mar 2005 Posts: 2,060 Pendleton NY	Quote: stick one of these in and adjust it to whatever you want. where do you get this ?

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