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Rocker Shaft Oiling on a Big Block #673544 04/18/10 09:20 AM 04/18/10 09:20 AM
Joined: Nov 2006 Posts: 75 Illinois ChrisDavis OP member
ChrisDavis OP member Joined: Nov 2006 Posts: 75 Illinois	I just put my 400 back together with new hydraulic roller lifters. Now that everything is reassembled I am second guessing myself. I am using regular adjustable shaft mount roller rockers. The shaft gets it�s oil supply from a hole in the shaft that is fed from the second mounting stud from each end. My question: Is there a top and a bottom to the shaft? Is there an oil supply hole in both sides of the shaft or just one side? Is it possible to install the shaft with the wrong side up and have the oil supply hole face up with the other side of the shaft effectively blocking the oil supply from the head?

Re: Rocker Shaft Oiling on a Big Block [Re: ChrisDavis] #673545 04/18/10 09:33 AM 04/18/10 09:33 AM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	The rocker holdown bolt holes in the shaft are the same on both sides so they could be installed upside down and the shaft itself will still recieve oil but you want the small oiling holes where the oil comes out at each rocker on the bottom side of the shaft to be slightly offset toward the valve side. If the notch on the front of the drivers side shaft is down and the notch on the rear of the passenger side shaft is down you are good live every 24 hour block of time like it's your last day on earth

Re: Rocker Shaft Oiling on a Big Block [Re: ChrisDavis] #673546 04/18/10 09:53 AM 04/18/10 09:53 AM
Joined: Feb 2005 Posts: 4,336 Prospect, PA BSB67 master
BSB67 master Joined: Feb 2005 Posts: 4,336 Prospect, PA	Not all shafts are the same. None the less, there are four different orientations for installing a shaft, and generally, only one orientation is correct.

Re: Rocker Shaft Oiling on a Big Block [Re: BSB67] #673547 04/18/10 10:24 AM 04/18/10 10:24 AM
Joined: Nov 2006 Posts: 75 Illinois ChrisDavis OP member
ChrisDavis OP member Joined: Nov 2006 Posts: 75 Illinois	I will go and pull the valve covers and see where the notches are on each side. I wish I had been paying more attention when I put it togather.

Re: Rocker Shaft Oiling on a Big Block [Re: ChrisDavis] #673548 04/18/10 10:34 AM 04/18/10 10:34 AM
Joined: Aug 2005 Posts: 11,543 chicagoland,usa B buildanother I Live Here
buildanother I Live Here B Joined: Aug 2005 Posts: 11,543 chicagoland,usa	Notches are small block thing. Just put the 1/8 inch oiling holes down and away from pushrod side of shaft as mentioned.

Re: Rocker Shaft Oiling on a Big Block [Re: buildanother] #673549 04/18/10 10:40 AM 04/18/10 10:40 AM
Joined: Nov 2006 Posts: 75 Illinois ChrisDavis OP member
ChrisDavis OP member Joined: Nov 2006 Posts: 75 Illinois	Is there any way I can tell by looking at the shaft as opposed to removing it? That�s why I was wondering if the oil feed holes exist on both sides of the shaft. If they do then it wouldn�t matter which side was down.

Re: Rocker Shaft Oiling on a Big Block [Re: ChrisDavis] #673550 04/18/10 11:06 AM 04/18/10 11:06 AM
Joined: Feb 2005 Posts: 4,336 Prospect, PA BSB67 master
BSB67 master Joined: Feb 2005 Posts: 4,336 Prospect, PA	No you cannot tell. No, there are usually only holes on the bottom (depending on who's shaft you're using), and even if they are down, they still may not be in the correct orientation. They need to come off.

Re: Rocker Shaft Oiling on a Big Block [Re: BSB67] #673551 04/18/10 11:12 AM 04/18/10 11:12 AM
Joined: Nov 2006 Posts: 75 Illinois ChrisDavis OP member
ChrisDavis OP member Joined: Nov 2006 Posts: 75 Illinois	Can you tell me what you mean by even if the holes are down they might not be in the correct orientation? Are you referring to the shaft possibly being flipped end for end? I guess I have no choice but to take it apart again. Story of my life! Can you tell me what to look for when I get it apart?

Re: Rocker Shaft Oiling on a Big Block [Re: ChrisDavis] #673552 04/18/10 11:15 AM 04/18/10 11:15 AM
Joined: Jan 2003 Posts: 33,186 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 33,186 Grand Prairie,Texas	To quote RapidRobert's answer. "If the notch on the front of the drivers side shaft is down and the notch on the rear of the passenger side shaft is down you are good"

Re: Rocker Shaft Oiling on a Big Block [Re: ChrisDavis] #673553 04/18/10 11:15 AM 04/18/10 11:15 AM
Joined: Mar 2008 Posts: 5,746 Ontario, Canada Dodgem master
Dodgem master Joined: Mar 2008 Posts: 5,746 Ontario, Canada	roller rockers are sealed all the way around the shaft unlike stamped so it really matters not which way the holes are. But down is right down and angled back I believe on stock shafts and stamped rockers.

Re: Rocker Shaft Oiling on a Big Block [Re: Dodgem] #673554 04/18/10 11:40 AM 04/18/10 11:40 AM
Joined: Sep 2004 Posts: 1,226 Cookeville Chilort Will Work For Mopars
Chilort Will Work For Mopars Joined: Sep 2004 Posts: 1,226 Cookeville	Quote: roller rockers are sealed all the way around the shaft unlike stamped so it really matters not which way the holes are. That's kind of what I was thinking.

Re: Rocker Shaft Oiling on a Big Block [Re: Chilort] #673555 04/18/10 11:44 AM 04/18/10 11:44 AM
Joined: Nov 2006 Posts: 75 Illinois ChrisDavis OP member
ChrisDavis OP member Joined: Nov 2006 Posts: 75 Illinois	OK, I have one valve cover off. There are no notches or markings on the ends of the shaft at all. I believe Buildanother said that only applied to small blocks. I guess I will pull the shaft next. Besides the oil hole facing down what else should I look for to verify the correct orientation of the shaft? I had it running for a while at an idle. There is plenty of oil puddled in the head so it must be oiling somewhat.

Re: Rocker Shaft Oiling on a Big Block [Re: ChrisDavis] #673556 04/18/10 11:56 AM 04/18/10 11:56 AM
Joined: Jan 2003 Posts: 25,200 Upper Midwest M MoparforLife Too Many Posts
MoparforLife Too Many Posts M Joined: Jan 2003 Posts: 25,200 Upper Midwest	Quote: OK, I have one valve cover off. There are no notches or markings on the ends of the shaft at all. I believe Buildanother said that only applied to small blocks. I guess I will pull the shaft next. Besides the oil hole facing down what else should I look for to verify the correct orientation of the shaft? I had it running for a while at an idle. There is plenty of oil puddled in the head so it must be oiling somewhat. Small block is where there are notches on the shafts that are used as indicators - not on BB's. As stated above. Hey Prime the engine and if you have oil a good supply you have no problem. Remember that only one side feeds oil at a time depending on camshaft position to the oil gallary.

Re: Rocker Shaft Oiling on a Big Block [Re: MoparforLife] #673557 04/18/10 12:05 PM 04/18/10 12:05 PM
Joined: Nov 2006 Posts: 75 Illinois ChrisDavis OP member
ChrisDavis OP member Joined: Nov 2006 Posts: 75 Illinois	Thanks. So if I understand correctly as long as my oil holes are facing down and it is getting oil supply then everything is OK? I also assume that if everything seems to be oiling well then the holes must be facing down.

Re: Rocker Shaft Oiling on a Big Block [Re: ChrisDavis] #673558 04/18/10 12:07 PM 04/18/10 12:07 PM
Joined: Feb 2005 Posts: 4,336 Prospect, PA BSB67 master
BSB67 master Joined: Feb 2005 Posts: 4,336 Prospect, PA	ChrisDavis, RR answered your question earlier about orientation. Dodgem - I'm not sure what you mean by "sealed" but you can probably get away with it on a conventional adgustable rocker with moderate valve spring pressure. If you flip the orientation of the oiling holes and run it for a while, you'll see the misalignment of the oil hole relative to the wear area on the shaft.

Re: Rocker Shaft Oiling on a Big Block [Re: BSB67] #673559 04/18/10 12:21 PM 04/18/10 12:21 PM
Joined: Sep 2004 Posts: 1,226 Cookeville Chilort Will Work For Mopars
Chilort Will Work For Mopars Joined: Sep 2004 Posts: 1,226 Cookeville	Quote: Dodgem - I'm not sure what you mean by "sealed" but you can probably get away with it ... If it is just roller tipped and not full roller (i.e. bushed) then the orientation matters. If it is a full roller rocker (i.e. Harland Sharp) then there is a roller bearing all the way around. Where the hole is in the shaft shouldn't matter with a full roller rocker.

Re: Rocker Shaft Oiling on a Big Block [Re: Chilort] #673560 04/18/10 02:15 PM 04/18/10 02:15 PM
Joined: Feb 2005 Posts: 4,336 Prospect, PA BSB67 master
BSB67 master Joined: Feb 2005 Posts: 4,336 Prospect, PA	Correct. I'm assuming that he does not have fulcrum rollers. Could be mistaken

Re: Rocker Shaft Oiling on a Big Block [Re: BSB67] #673561 04/18/10 03:06 PM 04/18/10 03:06 PM
Joined: Apr 2007 Posts: 807 Toronto, Canada D dirtybee super stock
dirtybee super stock D Joined: Apr 2007 Posts: 807 Toronto, Canada	i would pull the shaft ( it takes less than 5 min.) slide one rocker off, if the small oil hole is on the bottom and oriented towards the exhaust side not the intake side you are good. if not, spin the shaft front to back and re place the rocker gear correctly. not that big of a job. then check the other head. should be half hour to an hour and its fun, you get to play with a big block mopar!

Re: Rocker Shaft Oiling on a Big Block [Re: dirtybee] #673562 04/18/10 03:41 PM 04/18/10 03:41 PM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	I had no idea BB's didn't have the notches also. I'd as he said pull each shaft/rocker assy, take off 1 rocker and if the holes are not on the bottom/15 deg toward the valve side I'd slide the shaft out and put it back in the other way/reassemble live every 24 hour block of time like it's your last day on earth

Re: Rocker Shaft Oiling on a Big Block [Re: RapidRobert] #673563 04/21/10 08:52 PM 04/21/10 08:52 PM
Joined: Nov 2006 Posts: 75 Illinois ChrisDavis OP member
ChrisDavis OP member Joined: Nov 2006 Posts: 75 Illinois	You know how some days it doesn�t pay to get out of bed? The new Scorpion lifters went in without a hitch. They are quiet too. I did have the shaft in its correct orientation for oiling. However�.. I now have a stripped rocker shaft bolt hole. One of the ones that feeds oil. The aluminum is stripped out along with about 70% of the helicoil. I have 4 good threads left at the bottom and have studs, as opposed to bolts, on order. I am thinking maybe JB Weld instead of Locktite.

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