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very low oil pressure on 511(update, fixed) #685662
05/01/10 06:09 PM
05/01/10 06:09 PM
Joined: Sep 2003
Posts: 1,397
Toronto Ontario, Can
Glen440 Offline OP
pro stock
Glen440  Offline OP
pro stock

Joined: Sep 2003
Posts: 1,397
Toronto Ontario, Can
I just finished putting my 511 B1 engine back together and fired it up today. Something was weird when I primed it, only got around 35psi and it never stalled the drill which has always happened. I fired it up and it only has 10 psi at 1200 rpm and gets very little more if you bring the revs up a bit.

I just pulled the front cover to make sure the plugs are in it. They are. I did that because it looked like one side rockers got alot more oil than the other.

I'm gonna check the relief valve in the oil pump but I had it apart before it went on and it was free.

This is a stock block 511, it has a solid roller cam with .760, .716 lift with 1.7 T&D shaft rockers. Maybe the lifters are uncovering the oil feed? These were supposed to be good.

Maybe I'll drop some solid lifters in it and see if it will prime with pressure.

Any other ideas?

Last edited by Glen440; 05/09/10 11:40 AM.

87 dakota 6.1 hemi
Re: very low oil pressure on 511 [Re: Glen440] #685663
05/01/10 06:12 PM
05/01/10 06:12 PM
Joined: Jan 2003
Posts: 344
Burlington, Ontario Canada
Dave_S Offline
enthusiast
Dave_S  Offline
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Posts: 344
Burlington, Ontario Canada
Sorry Glen cant offer any advice, but you better huury up! May 22 is coming up fast.

Dave


Dave Stillie
'73 Swinger
5.7 Hemi, 88mm turbo, powerglide, cal-tracs & 8 3/4
Mega-Squirt EFI
[email]8.93@149
[/email]
Re: very low oil pressure on 511 [Re: Glen440] #685664
05/01/10 06:17 PM
05/01/10 06:17 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
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Posts: 52,972
Romeo MI
Put a washer in the end of the relief and see if it
comes up.... could be just a wimpy relief spring

Re: very low oil pressure on 511 [Re: Glen440] #685665
05/01/10 08:33 PM
05/01/10 08:33 PM
Joined: Jan 2003
Posts: 5,875
communist bloc of new jersey
J
jamesc Offline
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communist bloc of new jersey
Quote:

These were supposed to be good.





"supposed"? i'd want certainty on that one.

Re: very low oil pressure on 511 [Re: Glen440] #685666
05/01/10 08:41 PM
05/01/10 08:41 PM
Joined: Apr 2005
Posts: 2,128
Salt Lake City
C
camastomcat Offline
top fuel
camastomcat  Offline
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C

Joined: Apr 2005
Posts: 2,128
Salt Lake City
Check your lifters to see if they might be bleeding off because the oil band is coming out of the lifter bore. What kind are you running?

Re: very low oil pressure on 511 [Re: Glen440] #685667
05/01/10 08:42 PM
05/01/10 08:42 PM
Joined: Jan 2003
Posts: 30,995
Oregon
A
AndyF Offline
I Win
AndyF  Offline
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Posts: 30,995
Oregon
Some brands of solid lifters won't work in a stock block. I've seen that problem with a number of different customer motors.

Re: very low oil pressure on 511 [Re: Glen440] #685668
05/01/10 08:50 PM
05/01/10 08:50 PM
Joined: Dec 2004
Posts: 915
S.W. PA
6
6PACMAC Offline
super stock
6PACMAC  Offline
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6

Joined: Dec 2004
Posts: 915
S.W. PA
Ya, kinda sounds like the cut out in the lifter body for the roller is right at the oil gallery. See if you can sight down the oil gallery to see if the lifter is uncovering it at the roller.

Re: very low oil pressure on 511 [Re: Glen440] #685669
05/01/10 08:52 PM
05/01/10 08:52 PM
Joined: Aug 2003
Posts: 43,124
Bend,OR USA
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Cab_Burge Offline
I Win
Cab_Burge  Offline
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Posts: 43,124
Bend,OR USA
Pull all the spark plugs and prime the motor again, rotate it slowly, if the oil pressure comes up and drops off again it is the roller lifters Been there done that.The last motor we had that on we where able to block the oil off to the drivers isde and that cured it I use to small welsh plugs(look like small freeze plugs ) that I inserted into the drivers side oil galley behind the oil galley plug at the rear of the block It is a lot of work to either remove the motor and do it on a engine stand or remove the trans and do it in the car Try rotating the motor while priming it first before deciding what the problem is and the causes


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: very low oil pressure on 511 [Re: Cab_Burge] #685670
05/01/10 09:03 PM
05/01/10 09:03 PM
Joined: Sep 2003
Posts: 2,175
Duloc
T
The Shadow Offline
top fuel
The Shadow  Offline
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T

Joined: Sep 2003
Posts: 2,175
Duloc
Geeze Glen
My luck must be rubbing off on you.
It wasn't looking good for you being ready when I was at Frank's shop last week but you have kicked it in high gear.
Hopefully it's just something simple.

Re: very low oil pressure on 511 [Re: Glen440] #685671
05/02/10 08:04 AM
05/02/10 08:04 AM
Joined: Jan 2003
Posts: 16,923
NC
440Jim Offline
I Live Here
440Jim  Offline
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Posts: 16,923
NC
Quote:

I just finished putting my 511 B1 engine back together and fired it up today. ... with 1.7 T&D shaft rockers.


B1 heads and T&D rockers. I think that uses pushrod oiling? Did you block the oiling through the block? I have never used B1 heads, just thinking out loud. You also could need pushrod oil restrictors.

Re: very low oil pressure on 511 [Re: 440Jim] #685672
05/02/10 09:00 AM
05/02/10 09:00 AM
Joined: Feb 2004
Posts: 3,441
Mo.
S
supercomp Offline
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supercomp  Offline
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Posts: 3,441
Mo.
Are they common shaft or individual shaft.

Re: very low oil pressure on 511 [Re: 440Jim] #685673
05/02/10 09:23 AM
05/02/10 09:23 AM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
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Master

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Posts: 52,972
Romeo MI
Quote:

Quote:

I just finished putting my 511 B1 engine back together and fired it up today. ... with 1.7 T&D shaft rockers.


B1 heads and T&D rockers. I think that uses pushrod oiling? Did you block the oiling through the block? I have never used B1 heads, just thinking out loud. You also could need pushrod oil restrictors.




Those should be PR oiling... I believe the mounting
base on the heads for the rockers should block the
oil port in the head but I would check it... with
that much lift the lifter could be the issue....
those are individual shafts so no oil in the shafts
if they are like mine

Re: very low oil pressure on 511 [Re: MR_P_BODY] #685674
05/02/10 10:08 AM
05/02/10 10:08 AM
Joined: Feb 2004
Posts: 3,441
Mo.
S
supercomp Offline
master
supercomp  Offline
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S

Joined: Feb 2004
Posts: 3,441
Mo.
Those should be PR oiling... I believe the mounting
base on the heads for the rockers should block the
oil port in the head but I would check it... with
that much lift the lifter could be the issue....
those are individual shafts so no oil in the shafts
if they are like mine


They also make a single shaft setup for B1's, which is it?

Re: very low oil pressure on 511 [Re: supercomp] #685675
05/02/10 12:40 PM
05/02/10 12:40 PM
Joined: Nov 2004
Posts: 2,286
Hamilton,Ont
7
72chrgrally Offline
top fuel
72chrgrally  Offline
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Joined: Nov 2004
Posts: 2,286
Hamilton,Ont
Glen didn't you heve this engine together and running before? If so, and you changed the cam and lifters and nothing else, then that has to be your problem. I hope you get it figured out before the first race!
Steve


Photobucket sucks
Re: very low oil pressure on 511 [Re: 72chrgrally] #685676
05/02/10 08:52 PM
05/02/10 08:52 PM
Joined: Sep 2003
Posts: 1,397
Toronto Ontario, Can
Glen440 Offline OP
pro stock
Glen440  Offline OP
pro stock

Joined: Sep 2003
Posts: 1,397
Toronto Ontario, Can
These are single shaft T&D rockers. I switched the position of the rocker stands to stop the oil from the block. I have pushrod oiling with lifters from Emm engines from this board. After I took the front of the engine apart to check the plugs were definatley in there I have not got it back together yet so I won't be able to try anything else for a bit.

The engine made alot of noises when priming which I had not heard before.

The engine is pretty tight in the Duster so I may end up taking it out to play with. I will have to take the valley cover off and watch what happens when I prime it. I was close to doing that yesterday but burned out, could not work on it today so maybe during the week.

The bronze gear is stuck in the engine so hopefully I can get that out with the valley cover off.

With TMP going to AHRA I was not sure what to do about the first race anyway, I need my license but if I didn't finish it, its far away to do that another day. Also would need to renew my IHRA membership.


87 dakota 6.1 hemi
Re: very low oil pressure on 511 [Re: Glen440] #685677
05/03/10 09:31 AM
05/03/10 09:31 AM
Joined: Feb 2004
Posts: 3,441
Mo.
S
supercomp Offline
master
supercomp  Offline
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S

Joined: Feb 2004
Posts: 3,441
Mo.
Are your lifter bores bushed? If not that would be my first guess with pushrod oiling. Also need .060 holes in bushings and .020 restricters in pushrods.

Re: very low oil pressure on 511 [Re: Glen440] #685678
05/03/10 11:29 AM
05/03/10 11:29 AM
Joined: Feb 2007
Posts: 6,295
U.S.
M
moparniac Offline
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U.S.
With the dizzy out rotate the engine counter clockwise and it will lift the intermediate shaft out!


Mopar Performance
Re: very low oil pressure on 511 [Re: moparniac] #685679
05/03/10 02:43 PM
05/03/10 02:43 PM
Joined: Jan 2005
Posts: 1,260
Las Vegas NV
moparmanjames Offline
pro stock
moparmanjames  Offline
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Posts: 1,260
Las Vegas NV
A quick way to see if it's the lifters is to take the oil pan off and get a bucket of oil to put the pickup in. Then prime the pump with a drill and watch the oil gush out of the lifter area.

Re: very low oil pressure on 511 [Re: moparmanjames] #685680
05/03/10 08:23 PM
05/03/10 08:23 PM
Joined: Sep 2003
Posts: 1,397
Toronto Ontario, Can
Glen440 Offline OP
pro stock
Glen440  Offline OP
pro stock

Joined: Sep 2003
Posts: 1,397
Toronto Ontario, Can
I played with the engine tonight. Priming it it seems like there just is not enough oil from the pump. I first noticed the pushrods are not oiling. The roller on the lifter gets some oil run off it and you lift them up and uncover the galley and there is not much oil there. I took the adjustable relief spring retainer off and adjusted it all the way in and had the relief valve and spring out to look at and looks fine. I guess I need to take the oil pump off and maybe the pan. The K member may have to be lowered to do that.

I have a stock pump with a different cover that has external feed. I have a static pickup in the pan with #12 line feeding the pump. This pump and pan setup worked when last ran. I tried a different oil filter incase that was the problem.

Should I use a high volume pump this time around?


87 dakota 6.1 hemi
Re: very low oil pressure on 511 [Re: Glen440] #685681
05/03/10 08:27 PM
05/03/10 08:27 PM
Joined: Feb 2007
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U.S.
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moparniac Offline
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U.S.
good thread as im getting ready to prime as soon as my pushrods show up! I run T&d's with push rod oiling with a roller cam/bushed lifter bores and imm lifter set! the lifter holes are NOT in line with the lifter bore holes but I have a hi volume pump and running a external 12an feed like you! keep us updated (world block)


Mopar Performance
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