no oil at roller rockers

henrys57wagon · 06-07-2016, 05:56 PM

My buddy's 350 lost both ends of a pushrod and there is no oil coming out of any of the push-rods/ rockers. He revved it up to about 2000 without any oil coming out. It has about 30# at 2000, about 15 at idle. Any thoughts?

Alan Roehrich · 06-07-2016, 06:19 PM

Not enough information.

Already running for X amount of time?

New build?

Any changes?

Street engine?

Race engine?

Cam and lifter type and brand?

henrys57wagon · 06-07-2016, 09:44 PM

Car was bought with rebuilt street engine with blower, about 2000 miles on it. No oil on either of the heads. Don't know what type of valve train it has. Going to pull the engine and see what is up. Will post when we get that far and ask what we should be looking for. Still open for advice. Thanks

DIV3CR · 06-07-2016, 10:06 PM

Is that 30# oil pressure at 2000rpm if so you should have 60 to 80#
oil pressure. Looks like main brg too much clearance or they are bad.

carl hinkson · 06-08-2016, 07:37 AM

Quote:

Originally Posted by henrys57wagon

My buddy's 350 lost both ends of a pushrod and there is no oil coming out of any of the push-rods/ rockers. He revved it up to about 2000 without any oil coming out. It has about 30# at 2000, about 15 at idle. Any thoughts?

Make sure the galley plugs are installed in back of the timing gear.

Jim Hanig · 06-08-2016, 12:23 PM

Quote:

Originally Posted by carl hinkson

Make sure the galley plugs are installed in back of the timing gear.

that and the by pass

carl hinkson · 06-08-2016, 10:46 PM

Quote:

Originally Posted by Jim Hanig

that and the by pass

What bypass?

Lew Silverman · 06-08-2016, 11:29 PM

By-pass on the oil filter adapter?

You also might want to check and see if the previous owner might have installed oil restricters in the lifter feed oil galleys at the back of the motor.

Hope you find your problem!

Allen Sherman · 06-09-2016, 12:55 AM

If the pushrod oil feed hole in the lifter isn't in the band of the lifter or doesn't have a groove machined from the band to the oil feed hole this could be your issue, sometimes the lifter bore clearance isn't enough if the feed hole isn't in the band. Just some more places to look...

nhramnl · 06-09-2016, 07:55 AM

It's not a Bowtie block, is it? Because with those, engine builders have been known to forget to reinstall the galley plug that feeds the cam tunnel, which causes seemingly unexplained, but repeated (until you figure it out) cam bearing and lifter failures, due to lack of oil. Obviously, if the camshaft isn't getting any oil, the pushrods and rocker arms won't, either.

06-07-2016, 05:56 PM	#1
henrys57wagon Member Join Date: Jan 2009 Location: Carleton Place, On. Canada Posts: 107 Likes: 5 Liked 0 Times in 0 Posts	no oil at roller rockers My buddy's 350 lost both ends of a pushrod and there is no oil coming out of any of the push-rods/ rockers. He revved it up to about 2000 without any oil coming out. It has about 30# at 2000, about 15 at idle. Any thoughts? __________________ old 1608 stock racer

06-07-2016, 06:19 PM	#2
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,090 Likes: 1,534 Liked 1,758 Times in 398 Posts	Re: no oil at roller rockers Not enough information. Already running for X amount of time? New build? Any changes? Street engine? Race engine? Cam and lifter type and brand? __________________ Alan Roehrich 212A G/S

06-07-2016, 09:44 PM	#3
henrys57wagon Member Join Date: Jan 2009 Location: Carleton Place, On. Canada Posts: 107 Likes: 5 Liked 0 Times in 0 Posts	Re: no oil at roller rockers Car was bought with rebuilt street engine with blower, about 2000 miles on it. No oil on either of the heads. Don't know what type of valve train it has. Going to pull the engine and see what is up. Will post when we get that far and ask what we should be looking for. Still open for advice. Thanks __________________ old 1608 stock racer

06-07-2016, 10:06 PM	#4
DIV3CR Junior Member Join Date: Oct 2011 Location: WISCONSIN Posts: 50 Likes: 0 Liked 3 Times in 1 Post	Re: no oil at roller rockers Is that 30# oil pressure at 2000rpm if so you should have 60 to 80# oil pressure. Looks like main brg too much clearance or they are bad.

06-08-2016, 11:29 PM	#8
Lew Silverman VIP Member Join Date: Mar 2010 Location: Newport News, VA Posts: 1,435 Likes: 371 Liked 129 Times in 59 Posts	Re: no oil at roller rockers By-pass on the oil filter adapter? You also might want to check and see if the previous owner might have installed oil restricters in the lifter feed oil galleys at the back of the motor. Hope you find your problem! __________________ Lew Silverman #2070 "The Wagon Master" N/SA

06-09-2016, 12:55 AM	#9
Allen Sherman Banned Join Date: Dec 2001 Posts: 147 Likes: 0 Liked 5 Times in 3 Posts	Re: no oil at roller rockers If the pushrod oil feed hole in the lifter isn't in the band of the lifter or doesn't have a groove machined from the band to the oil feed hole this could be your issue, sometimes the lifter bore clearance isn't enough if the feed hole isn't in the band. Just some more places to look...

06-09-2016, 07:55 AM	#10
nhramnl Senior Member Join Date: Feb 2010 Posts: 507 Likes: 8 Liked 358 Times in 83 Posts	Re: no oil at roller rockers It's not a Bowtie block, is it? Because with those, engine builders have been known to forget to reinstall the galley plug that feeds the cam tunnel, which causes seemingly unexplained, but repeated (until you figure it out) cam bearing and lifter failures, due to lack of oil. Obviously, if the camshaft isn't getting any oil, the pushrods and rocker arms won't, either.