Re: no oil flow to rocker shafts
[Re: allmopar]
#1432017
05/07/13 10:53 PM
05/07/13 10:53 PM
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Joined: Aug 2003
Posts: 43,307 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,307
Bend,OR USA
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Quote:
Maybe someone can shed some light on my problem and help me figure out what I messed up. I did a complete rebuild on a 440 and added edelbrock heads, comp solid lifter cam, harland sharp rockers, etc. I was finally ready for the first fire-up and cam break in this last weekend. I primed the oil pump with a drill and the guage showed good pressure. When I started the motor, The oil pressure was about 70/80 psi. After about a minute the valvetrain started to get noisy so I shut it down. Pulled a valve cover and it is pretty dry except for the break in grease. I pulled off the rocker shaft and ran the oil pump with the drill again and absolutely no oil is comming out of any of the pedestals that feed oil to the shafts. I took out the oil plug on the top of the block in the rear where the oil pressure guage hookes up and oil shoots out of there really good. Any ideas ? I cannot remember if the Edelbrock rpm heads have only one oil passage hole in the head and I have the heads on the wrong sides ? I really don't think the cam bearing is off location. Should oil flow to the rockers at all times ? The engine is at TDC right now when I am running the pump with the drill .
If you didn't install new cam bearings and the old cam was working properly oiling the rocker shafts and the NEW cam is drilled properly you should be able to rotate the motor over clockwise very slowly while priming the oil pump and come to the position where the cam oil hole lines up with the hole in the number 4 main bearing hole and the hole in the cam that feeds oil through it into the oil passage in the block to oil the rocker shafts, turn it very slowly and be patient The cam will oil for about 5 degrees of crankshaft travel so turn it over very slowly and watch closely with the shafts on, if you want to try priming it with the shafts off be prepare to see oil shoot out of the oil feed holes in the heads as soon as the holes start to line up. If you do it that way it will oil only one shaft at a time, not both in the same position at the same time You can do it that way and then put the shafts on and rock the crank back and forth while priming the oil pump to help lube the shafts and rockers If you do that do both sides the same way and amount of time. BTW, you can have the #4 cam journal groove all the way around so it will oil the rockers full time, I do that now on all my motors ![](/ubbthreads/images/graemlins/Twocents.gif)
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: no oil flow to rocker shafts
[Re: allmopar]
#1432019
05/07/13 11:23 PM
05/07/13 11:23 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Maybe someone can shed some light on my problem and help me figure out what I messed up. I did a complete rebuild on a 440 and added edelbrock heads, comp solid lifter cam, harland sharp rockers, etc. I was finally ready for the first fire-up and cam break in this last weekend. I primed the oil pump with a drill and the guage showed good pressure. When I started the motor, The oil pressure was about 70/80 psi. After about a minute the valvetrain started to get noisy so I shut it down. Pulled a valve cover and it is pretty dry except for the break in grease. I pulled off the rocker shaft and ran the oil pump with the drill again and absolutely no oil is comming out of any of the pedestals that feed oil to the shafts. I took out the oil plug on the top of the block in the rear where the oil pressure guage hookes up and oil shoots out of there really good. Any ideas ? I cannot remember if the Edelbrock rpm heads have only one oil passage hole in the head and I have the heads on the wrong sides ? I really don't think the cam bearing is off location. Should oil flow to the rockers at all times ? The engine is at TDC right now when I am running the pump with the drill .
With what your saying you changed heads, cam and rockers... it would be cam bearings or the cam wasnt made properly(no oil holes) or by chance the gasket doesnt have the hole... sounds like you will be pulling it back apart..... bummer... but you should have primed it while it was on the stand and caught this ![](/ubbthreads/images/graemlins/wave.gif)
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Re: no oil flow to rocker shafts
[Re: Cab_Burge]
#1432020
05/07/13 11:26 PM
05/07/13 11:26 PM
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Joined: Feb 2005
Posts: 20,203 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,203
PA.
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Quote:
Quote:
Maybe someone can shed some light on my problem and help me figure out what I messed up. I did a complete rebuild on a 440 and added edelbrock heads, comp solid lifter cam, harland sharp rockers, etc. I was finally ready for the first fire-up and cam break in this last weekend. I primed the oil pump with a drill and the guage showed good pressure. When I started the motor, The oil pressure was about 70/80 psi. After about a minute the valvetrain started to get noisy so I shut it down. Pulled a valve cover and it is pretty dry except for the break in grease. I pulled off the rocker shaft and ran the oil pump with the drill again and absolutely no oil is comming out of any of the pedestals that feed oil to the shafts. I took out the oil plug on the top of the block in the rear where the oil pressure guage hookes up and oil shoots out of there really good. Any ideas ? I cannot remember if the Edelbrock rpm heads have only one oil passage hole in the head and I have the heads on the wrong sides ? I really don't think the cam bearing is off location. Should oil flow to the rockers at all times ? The engine is at TDC right now when I am running the pump with the drill .
If you didn't install new cam bearings and the old cam was working properly oiling the rocker shafts and the NEW cam is drilled properly you should be able to rotate the motor over clockwise very slowly while priming the oil pump and come to the position where the cam oil hole lines up with the hole in the number 4 main bearing hole and the hole in the cam that feeds oil through it into the oil passage in the block to oil the rocker shafts, turn it very slowly and be patient The cam will oil for about 5 degrees of crankshaft travel so turn it over very slowly and watch closely with the shafts on, if you want to try priming it with the shafts off be prepare to see oil shoot out of the oil feed holes in the heads as soon as the holes start to line up. If you do it that way it will oil only one shaft at a time, not both in the same position at the same time You can do it that way and then put the shafts on and rock the crank back and forth while priming the oil pump to help lube the shafts and rockers If you do that do both sides the same way and amount of time. BTW, you can have the #4 cam journal groove all the way around so it will oil the rockers full time, I do that now on all my motors
#2 and #4 both need grooved. ![](/ubbthreads/images/graemlins/thumbs.gif)
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: no oil flow to rocker shafts
[Re: pittsburghracer]
#1432021
05/07/13 11:51 PM
05/07/13 11:51 PM
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Joined: Aug 2003
Posts: 43,307 Bend,OR USA
Cab_Burge
I Win
|
I Win
Joined: Aug 2003
Posts: 43,307
Bend,OR USA
|
Quote:
Quote:
Quote:
Maybe someone can shed some light on my problem and help me figure out what I messed up. I did a complete rebuild on a 440 and added edelbrock heads, comp solid lifter cam, harland sharp rockers, etc. I was finally ready for the first fire-up and cam break in this last weekend. I primed the oil pump with a drill and the guage showed good pressure. When I started the motor, The oil pressure was about 70/80 psi. After about a minute the valvetrain started to get noisy so I shut it down. Pulled a valve cover and it is pretty dry except for the break in grease. I pulled off the rocker shaft and ran the oil pump with the drill again and absolutely no oil is comming out of any of the pedestals that feed oil to the shafts. I took out the oil plug on the top of the block in the rear where the oil pressure guage hookes up and oil shoots out of there really good. Any ideas ? I cannot remember if the Edelbrock rpm heads have only one oil passage hole in the head and I have the heads on the wrong sides ? I really don't think the cam bearing is off location. Should oil flow to the rockers at all times ? The engine is at TDC right now when I am running the pump with the drill .
If you didn't install new cam bearings and the old cam was working properly oiling the rocker shafts and the NEW cam is drilled properly you should be able to rotate the motor over clockwise very slowly while priming the oil pump and come to the position where the cam oil hole lines up with the hole in the number 4 main bearing hole and the hole in the cam that feeds oil through it into the oil passage in the block to oil the rocker shafts, turn it very slowly and be patient The cam will oil for about 5 degrees of crankshaft travel so turn it over very slowly and watch closely with the shafts on, if you want to try priming it with the shafts off be prepare to see oil shoot out of the oil feed holes in the heads as soon as the holes start to line up. If you do it that way it will oil only one shaft at a time, not both in the same position at the same time You can do it that way and then put the shafts on and rock the crank back and forth while priming the oil pump to help lube the shafts and rockers If you do that do both sides the same way and amount of time. BTW, you can have the #4 cam journal groove all the way around so it will oil the rockers full time, I do that now on all my motors
#2 and #4 both need grooved.
Only on SB Mopars, normal motors only need it on #4 ![](/ubbthreads/images/graemlins/grin.gif)
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: no oil flow to rocker shafts
[Re: Cab_Burge]
#1432022
05/08/13 12:01 AM
05/08/13 12:01 AM
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Joined: Feb 2005
Posts: 20,203 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,203
PA.
|
Quote:
Quote:
Quote:
Quote:
Maybe someone can shed some light on my problem and help me figure out what I messed up. I did a complete rebuild on a 440 and added edelbrock heads, comp solid lifter cam, harland sharp rockers, etc. I was finally ready for the first fire-up and cam break in this last weekend. I primed the oil pump with a drill and the guage showed good pressure. When I started the motor, The oil pressure was about 70/80 psi. After about a minute the valvetrain started to get noisy so I shut it down. Pulled a valve cover and it is pretty dry except for the break in grease. I pulled off the rocker shaft and ran the oil pump with the drill again and absolutely no oil is comming out of any of the pedestals that feed oil to the shafts. I took out the oil plug on the top of the block in the rear where the oil pressure guage hookes up and oil shoots out of there really good. Any ideas ? I cannot remember if the Edelbrock rpm heads have only one oil passage hole in the head and I have the heads on the wrong sides ? I really don't think the cam bearing is off location. Should oil flow to the rockers at all times ? The engine is at TDC right now when I am running the pump with the drill .
If you didn't install new cam bearings and the old cam was working properly oiling the rocker shafts and the NEW cam is drilled properly you should be able to rotate the motor over clockwise very slowly while priming the oil pump and come to the position where the cam oil hole lines up with the hole in the number 4 main bearing hole and the hole in the cam that feeds oil through it into the oil passage in the block to oil the rocker shafts, turn it very slowly and be patient The cam will oil for about 5 degrees of crankshaft travel so turn it over very slowly and watch closely with the shafts on, if you want to try priming it with the shafts off be prepare to see oil shoot out of the oil feed holes in the heads as soon as the holes start to line up. If you do it that way it will oil only one shaft at a time, not both in the same position at the same time You can do it that way and then put the shafts on and rock the crank back and forth while priming the oil pump to help lube the shafts and rockers If you do that do both sides the same way and amount of time. BTW, you can have the #4 cam journal groove all the way around so it will oil the rockers full time, I do that now on all my motors
#2 and #4 both need grooved.
Only on SB Mopars, normal motors only need it on #4
Ya thinking small block again. I will reread this post tomorrow as its been a long day but when I saw this I was thinking about one of our members that found the oiling hole up thru the head not drilled completely thru. this too was a small block and I checked a new set of mine and they were the same way.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: no oil flow to rocker shafts
[Re: allmopar]
#1432025
05/08/13 12:12 AM
05/08/13 12:12 AM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Guess what, I just couldn't go to bed with all of this floating around in my head so I went back out in the garage and cranked it over by hand while running the drill. After I went a little more than 360 with the crank, oil came flying out of the rear pedistals on the heads. I tried to put my thumb over the pedistal to see how much pressure there was and the oil pushed my thumb off. I now have about a quart of Brad Penn break in #30wt on the floor to clean up but I can go tomorrow to the speed shop and get more. Tomorrow I will put the rocker shafts back on and fill them with the drill before starting the motor again. To answer one of your questions, no I did not prime the motor on the stand to check it out first. I guess I shoud have. The priming was one of the last things I did before start up but I did not take a valve cover off to verify the oil was comming out of the rocker arm oil holes. Just that the drill boged down a lot and my pressure guage read good pressure. Thanks everyone for all the help, this site is A-1. I was worried that the heads only had one oil passage and they were on backwards.
Well glad to hear you have it up there... the shafts do have a proper way to fit on and make sure they arent upside down ![](/ubbthreads/images/graemlins/wave.gif)
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