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started new engine only 5-10psi oil pressure????
#961416
03/29/11 02:38 AM
03/29/11 02:38 AM
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Joined: Jul 2007
Posts: 363 San Diego
64dartsb
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enthusiast
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OP
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Posts: 363
San Diego
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Hey guys I just finished putting together my first race motor and I got to fire it up just now but at idle it only has like 5psi then I rev'd it up to about 3,000rpm and the oil pressure twitched up to 10psi maybe a little more for a split second... The engine sounds real good but the oil pressure has me wondering so I thought I'd ask you guys see if there is anything I should check so I don't mess anything up
IT's a 360 with a sold .522" cam and KB107 pistons One thing I was wondering is... I'm using the solid lifers that originally were intended for a 273, the race one with 10.5-1 compression. These lifters get skinny in the middle and I was wondering if I am loosing oil pressure because of that. Wondering if the oil holes that are in the lifter bores are different between the two blocks????
also the oil pump is a new stock one from napa
Or anything else you guys can think of why I am getting low oil pressure?
if your dreaming of your car then it's your dream car....
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Re: started new engine only 5-10psi oil pressure????
[Re: 64dartsb]
#961417
03/29/11 02:56 AM
03/29/11 02:56 AM
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Joined: Jan 2004
Posts: 27,347 Today? Who Knows?
1_WILD_RT
Management Trainee
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Management Trainee
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Posts: 27,347
Today? Who Knows?
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Barbell type lifters can uncover & become a huge internal leak, when running them you need to be aware of the issue & verify that it doesn't happen...
Another common issue is missing one of the oil galley plugs
"The Armies of our ancestors were lucky, in that they were not trailed by a second army of pencil pushers."
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Re: started new engine only 5-10psi oil pressure????
[Re: 1_WILD_RT]
#961419
03/29/11 02:59 AM
03/29/11 02:59 AM
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Joined: Jul 2007
Posts: 363 San Diego
64dartsb
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By uncover your talking about the skinny part of the lifter giving too much clearance to the oil hole in the lifter bore, right? That's what I was thinking too. How do I check to see if this is happening?
Last edited by 64dartsb; 03/29/11 03:30 AM.
if your dreaming of your car then it's your dream car....
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Re: started new engine only 5-10psi oil pressure????
[Re: 64dartsb]
#961420
03/29/11 03:23 AM
03/29/11 03:23 AM
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Joined: Jan 2004
Posts: 27,347 Today? Who Knows?
1_WILD_RT
Management Trainee
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Management Trainee
Joined: Jan 2004
Posts: 27,347
Today? Who Knows?
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The bar bell style lifters can create a open path for oil from the main feed galley into both the upper valley or below the valley in the cam tunnel depending on the base circle diameter of the cam and the lift....
"The Armies of our ancestors were lucky, in that they were not trailed by a second army of pencil pushers."
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Re: started new engine only 5-10psi oil pressure????
[Re: 1_WILD_RT]
#961422
03/29/11 03:29 AM
03/29/11 03:29 AM
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Joined: Jan 2003
Posts: 9,826 las vegas
70AARcuda
master
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master
Joined: Jan 2003
Posts: 9,826
las vegas
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the skinny part of the lifters are creating giant oil leaks...bleeding off the oil pressure...
i would change lifters.....
Tony
70 AARCuda Vitamin C 71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield) 71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas) 71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)
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Re: started new engine only 5-10psi oil pressure????
[Re: 70AARcuda]
#961423
03/29/11 03:39 AM
03/29/11 03:39 AM
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Joined: Jul 2007
Posts: 363 San Diego
64dartsb
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San Diego
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ok... I understand now. I'll get the solid lifters from crower, they aren't barbell type and they have a little oil hole at the bottom that I liked too. I should have just gotten those from the begining. I paid like $150 for these crappy 273 lifters too... I do everything twice no big deal...
thanks guys
if your dreaming of your car then it's your dream car....
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Re: started new engine only 5-10psi oil pressure????
[Re: Kern Dog]
#961426
03/29/11 05:56 AM
03/29/11 05:56 AM
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Joined: Jul 2007
Posts: 363 San Diego
64dartsb
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No, The lifters were new. I don't have a part number or anything so that was the best way for me to identify them.
if your dreaming of your car then it's your dream car....
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Re: started new engine only 5-10psi oil pressure????
[Re: w7smallblock]
#961427
03/29/11 06:04 AM
03/29/11 06:04 AM
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Joined: Jul 2007
Posts: 363 San Diego
64dartsb
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San Diego
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I only started the motor prolly 5 times at around 1500rpm for maybe 5 seconds each then the last time I started it I rev'd it up to like 2900rpm for like 4 seconds then I shut it off cause I figured something was wrong because oil pressure didn't pick up.
still think I should order some bearings?
if your dreaming of your car then it's your dream car....
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Re: started new engine only 5-10psi oil pressure????
[Re: mosweethemi]
#961430
03/29/11 08:58 AM
03/29/11 08:58 AM
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Joined: Jan 2005
Posts: 866 Winnipeg ,Mb. CA.
chryco
super stock
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super stock
Joined: Jan 2005
Posts: 866
Winnipeg ,Mb. CA.
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Pull the intake and prime it with a drill. Watch for any obvious oil leaks (internally) . I found an oil galley coming off the oil filter actually had due to bad casting flaked a piece off and blowing oil at the bottom of my intake ! I was able to sleeve the galley with some 1/2" tubing . That 340 oiled great after that . Good Luck ! Chryco
Gas is fer washin' parts ....Alky`s fer drinkin' ...Nitro`s fer Racin'!
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Re: started new engine only 5-10psi oil pressure????
[Re: 64dartsb]
#961432
03/29/11 09:40 AM
03/29/11 09:40 AM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
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Posts: 52,972
Romeo MI
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You have a couple of galley plugs on the front of the engine behind the timing gear also that you might have forgot.... pull the intake and start there... didnt you see this when you primed the system
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