Post deleted by Defbob
[Re: blown572dart]
#702586
05/19/10 08:58 PM
05/19/10 08:58 PM
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Anonymous
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Re: It's in, running and has too high oil pressure???
[Re: dc426]
#702589
05/19/10 09:16 PM
05/19/10 09:16 PM
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Joined: Jan 2003
Posts: 5,997 Anoka County, MN
Leigh
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Posts: 5,997
Anoka County, MN
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Yeah, I know. Pull the distributer to allow tilting of the engine to keep pressure off the center link that goes through the pan. Pull the headers before removing the pittman arm and tie rod ends. Of course, this is after removing the front wheels. Then, everything is done on the back, including recentering the 340/360 oil pan spacer. Plus, the pan is so big, there isn't much room between it and the trans. I'll pull the motor next time, all that is left is the converter bolts. Doing it on the engine stand is a H E L L of alot better deal. Like I said, GOOD LUCK
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Re: It's in, running and has too high oil pressure???
[Re: jamesc]
#702591
05/19/10 10:42 PM
05/19/10 10:42 PM
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Joined: Jan 2003
Posts: 5,997 Anoka County, MN
Leigh
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Anoka County, MN
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Quote:
OR you could eat a slice of pizza while you pull the pump off your big block...OK maybe two slices
Isn't that the truth. So easy, even a... Naa, I ain't going there.
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Re: It's in, running and has too high oil pressure???
[Re: flatiron]
#702593
05/20/10 12:54 AM
05/20/10 12:54 AM
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Joined: Feb 2009
Posts: 1,532 off the grid
340B5
pro stock
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pro stock
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The HV72 I put in my SB put out 80psi in March when I first started it.(45deg) Now after a couple hrs run time and a couple passes it is 62psi@2000 and 45psi at idle (1150 rpm@ 70 deg.) Oil is 10-30 Mobil 1.
Yeah, it's got a smallblock.
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Re: It's in, running and has too high oil pressure???
[Re: jamesc]
#702594
05/20/10 02:12 AM
05/20/10 02:12 AM
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Joined: Jul 2008
Posts: 30,632 Florida STAYcation
IcorkSOAK
Financed his waterbed
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Financed his waterbed
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Posts: 30,632
Florida STAYcation
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Quote:
OR you could eat a slice of pizza while you pull the pump off your big block...OK maybe two slices
HELL ...you could pull-the-pan in that RE dragster on ONE SLICE. .... SAME goes for my FED that is going together .... but my v-drive boat ?... not-so-much.
B U T ...all this heavy-weight oils you are talkin' about ..... on a race-car-only ....why aren't you thinking 0 or 10 weight stuff ?
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Post deleted by Defbob
[Re: Leigh]
#702595
05/20/10 04:48 AM
05/20/10 04:48 AM
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Re: It's in, running and has too high oil pressure???
[Re: Ron Silva]
#702597
05/20/10 09:08 AM
05/20/10 09:08 AM
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Joined: Oct 2004
Posts: 8,166 Left Coast
BobR
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Quote:
I would never run straight 30 weight. I would go to 5W30 or maybe the 10W30 Valvoline racing oil and if your water temp was 160 that means nothing. The oil temp could still be way lower than that. Drive it for 30 minutes and report back.
I agree. Why use heavier oil? 15/40 oil is 15 weight oil with hot properties of 40 weight. Straight 30 will result in higher pressure-especially until fully warmed.
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Re: It's in, running and has too high oil pressure???
[Re: 3ddart]
#702598
05/20/10 09:49 AM
05/20/10 09:49 AM
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so how is it you guys are missing this BEFORE you drop the engine in the car? i always prime engines while on the stand so there's no surprises afterward.
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Re: It's in, running and has too high oil pressure???
[Re: BobR]
#702599
05/20/10 09:50 AM
05/20/10 09:50 AM
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Joined: Nov 2006
Posts: 100 Winnipeg, Canada
StrokerDart
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I had the EXACT same "runaway oil pressure" problem last season with a freshened smallbock and new Melling HV pump. First time in all these years that this has happened to me. I replaced it with another HV pump (this time it was a Speed Pro but anyways) and problem solved. BTW, the bad pump did not show any particular problem when I dissassembled it after removal (and I had opened it up/inspected it prior to original install). It had to be the relif valve but I could not prove it to myself so in went he new pump. I feel for ya on the job ahead .... I think in hindsight, pulling the motor back out would have been easier than dropping the pan in the car
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Re: It's in, running and has too high oil pressure???
#702600
05/20/10 09:53 AM
05/20/10 09:53 AM
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Joined: Nov 2006
Posts: 100 Winnipeg, Canada
StrokerDart
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Quote:
so how is it you guys are missing this BEFORE you drop the engine in the car? i always prime engines while on the stand so there's no surprises afterward.
In my case I had primed the engine on the stand but with just the drill speed... it looked normal so I got fooled into thinking all was well.
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Re: It's in, running and has too high oil pressure???
#702601
05/20/10 10:09 AM
05/20/10 10:09 AM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
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Quote:
so how is it you guys are missing this BEFORE you drop the engine in the car? i always prime engines while on the stand so there's no surprises afterward.
So Dram... what would you expect to see for a pressure while priming and what size drill motor(or what ever you use).... I know on my stuff I usually see 70
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Re: It's in, running and has too high oil pressure???
[Re: BobR]
#702602
05/20/10 10:10 AM
05/20/10 10:10 AM
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Joined: Nov 2009
Posts: 2,177 ill
dennismopar73
top fuel
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Posts: 2,177
ill
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WHAT ???? YOU HAVE THAT BACKWARDS 30 is 30 10w 30 10w 40 5w30 it is a 30 w until the temp starts falling below the 32^ then it stats to act like thinner wieght for easier starts in winter i used to spec out oil for trucking companies desil oil have certain properties to help in sludge/ breakdown additives and soot control
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Re: It's in, running ,has too high oil pressure**UPDATE
[Re: dennismopar73]
#702603
05/20/10 10:55 AM
05/20/10 10:55 AM
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Joined: Aug 2003
Posts: 5,000 Tampa Florida
dc426
OP
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Posts: 5,000
Tampa Florida
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Thanks for all the input guys. DRAM, First off We primed it on the stand with a gauge attached. It showed 75 LBS. constant with a high torque drill. Don't know what else to expect Last night I drained the Rotella and this morning tried a 5w-30. As the motor warmed up the pressure fell to about 75 at idle and was around 85 at 3500-4000. It looked as if it would continue to fall as the motor got hotter. I had the temp up to 160. Of course that's not necessarily the oil temp but it seems to prove as the motor gets warmer the oil pressure is falling into place. The old oil pump stated at 65 regardless if it was hot or cold.
Last edited by dc426; 05/20/10 11:18 AM.
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Re: It's in, running ,has too high oil pressure**UPDATE
[Re: dc426]
#702605
05/20/10 11:44 AM
05/20/10 11:44 AM
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Joined: Nov 2009
Posts: 2,177 ill
dennismopar73
top fuel
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top fuel
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oil filter 101 if you see 85 -100 psi at youre gauge that is about normal race car some motors are restricting the top end ,either in the block or heads?? so you could see increase of pressure that way youre gauge is usauly last in line to see pressure pump does accumulate most of the pressure rest is generated by mains cam bearings? as for filters they are restriction as well the race filter are far less restricted than that of normal cars reason not much filtration inside in other words it allows more oil to thru mmm after idle the filter doesnt filter much oil at all and at speed say above 1500 rpm very little oil actually goes thru that filter the filter cannot accept that flow so it bypasses it altogehter in passing a race filter filters out less particules than a reg filter does but will allow more oil thru it faster rate reg filter will filter more smaller particules thru it but allow less oil thru it does it matter ?? so long as you filter doesnt burst ?? not telling you to run cheap filter not telling you to run the best there is either with alcohol you have to be carefull as some dont like the water condensation
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