oil pressure to rockers?
 

OK, I am getting ready to fire up my long dormant engine! So I thought that I would prime the engine first and then adjust valves and set to TDC. Long story short, the PO added an aftermarket oiler system that I did not catch. That problem is fixed but my question is this: Why do I get a large amount of pressure on the drivers side and not so much on the passenger side? The pass side rockers get oil but not as much as the drivers side. Can I clamp down the drivers side rockers to force more oil to the pass. side?

Mike

Re: oil pressure to rockers?
 

I bought a hot rod with and rebuilt Olds 324 engine in it. During the rebuild somebody had installed the rocker shafts upside down cutting off the oiling holes to the rockers. It ran on the pre-lubed rockers and then eventuallywiped them out. All that metal went through the engine bearings and wiped them out too.

Re: oil pressure to rockers?
 

I don't think so, Is this on a 292 , 312 ?

Re: oil pressure to rockers?
 

I don't know about your engine, but I tore my 239 back apart for the same reason. The cam bearing journals are drilled. If you rotate the engine a little the other side will be getting oil.

Re: oil pressure to rockers?
 

Yep it is a Y block. I mean the pass side is getting oil, just not as much as the driver side. I am hoping and praying that I don't have to tear the engine apart. It is brand new.

Mike

Re: oil pressure to rockers?
 

Did you read GLAmes' reply ?

Re: oil pressure to rockers?
 

The center bearing on the cam has a groove machined in to run oil to the top. If one side gets more than the other, there is a restriction between the cam and the top. You can remove the rocker shaft from the dry side and run a 1/4 drill as far in to the head as it will go. Then with the plugs removed, use the starter to spin the engine to clear the crud out. If that doesn't work, you will have to remove that head and do the same to the block, or the cross over in the head.

Re: oil pressure to rockers?
 

take the rocker arm shaft off take the plugs in the end of the shaft out and run a 1/2 in ball hone in the shaft lots of surprises in there you can get new plugs at o'rielys i have also found the hole in the rocker arm that feeds the push rod the casting may not be drilled been playing with y-blocks since 54 have fun

Re: oil pressure to rockers?
 

Thank you all, I will play with it this weekend some more and see what I can do.

Mike

Re: oil pressure to rockers?
 

The engine only needs to be rotated slightly for the other side to receive oil. I took my engine apart needlessly after the first pre-oil attempt after I rebuilt it. I'm trying to save you from doing the same.

Re: oil pressure to rockers?
 

Don’t know if this will work or is legal-if not just block it and I will find another way to post a video.

But, I spun the pump up to about 600 rpm and this is the pass side bank. Is this the right amount of oil flow?


https://www.facebook.com/groups/1957...ibextid=W9rl1R

Re: oil pressure to rockers?
 

This link may work better to my you tube channel.

https://youtube.com/shorts/YTgiocRZNyg?feature=share

Re: oil pressure to rockers?
 

That's the most you get regardless of where the engine is rotated to? If turning the engine a few degrees at a time doesn't change the flow, no, that is not enough.

Re: oil pressure to rockers?
 

the left side or drivers side always got more oil then the other side.as long as your getting enough.

Re: oil pressure to rockers?
 

probably why the PO had outside oilers on the motor. used to be a common sight on y blocks

Re: oil pressure to rockers?
 

Ted Eaton's article on this issue:


https://www.eatonbalancing.com/2021/...d-oiling-woes/


Sums it up pretty well.


Terry

Re: oil pressure to rockers?
 

except for cutting the grooves in the block itself ive done all the others at one time or another.

Re: oil pressure to rockers?
 

UPDATE: As usual Tim was right and I was paranoid. I spun the engine and the oil pump and the oil return tube blew off and she shot oil all over the solenoid. IT is back on tighter now;) To be fair though this is my first Y block and I was going to make damn sure the rockers all got the right amount of oil! I mean I spent good money on that engine. Anywho, the valve covers are down (until I half to pull them to verify the gap during the engine break in), fan is on, PS is bolted up, and the lower rad hose is now on. Gaskets come on Friday and then I can bolt up the intake, valley pan, and hook the carb up. Getting close now!