Re: No oil in filter after 5 dyno pulls, but excellent oil press
[Re: mopar68hemidart]
#2314029
05/31/17 02:58 AM
05/31/17 02:58 AM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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the plug should be 7&1/4" down in the oil sender rear top of the block port boss (iirc) (I can check tomorrow) which is inbetween the 2 horizontle oil passages that go to/from the filter boss which keeps the oil from going straight all the way up (unfiltered) to where it makes a 90 deg into the main gallery & that vertical passage also continues up further vertical to the oil sender port. the plug in the vertical passage in that sweet spot of several vertical inches makes the oil turn out horizontle & go out to the filter then back from the filter in the other horizontle passage then it hits the vertical passage & turns up a 1/4 turn & goes up till it reaches the main gallery where it makes a right turn into it. if the plug is in the wrong spot all flow would be blocked & there wouldn't even be any psi at the port (oil or air) & you did have pressure. if the plug was forgotten you would have psi & the filter would be full (tho the eng oil would not be filtered & no one would ever know it until the engines' early demise years later & on teardown they find there is no plug). that is strange cuz you had either oil or air psi pressure at the top port so there was an unobstructed flow. I would start by pulling the inter gear & drill prime it with the 5/16" hex priming tool & see what you see. keep us updated this is interesting! PS I'm wondering if there is no plug if the oil rushed up vertical & no or very little trickled out to horizontally the filter but I'm skeptical of that but I would think there would have to be some flow. EDIT pic added. MORE EDIT I reread your post & I'm thinking (now) that the plug was missing & it was getting unfiltered oil & it was indeed going straight up as I would think if the main gallery was not getting oil that it would not have lasted 5 dyno pulls but I ain't a dyno guy soooo I ain't sure. Any thoughts? & the lifters would have been clattering if hyd. MORE EDIT the pan is off so pull the #4 cap & see if the bearing is starved (I bet it ain't). stick a rod into the top oil sender boss hole & see how far down it goes.
Last edited by RapidRobert; 05/31/17 03:28 AM. Reason: boredom/OCD
live every 24 hour block of time like it's your last day on earth
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Re: No oil in filter after 5 dyno pulls, but excellent oil press
[Re: justinp61]
#2314205
05/31/17 03:37 PM
05/31/17 03:37 PM
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Joined: Oct 2003
Posts: 11,684
W. Kentucky
justinp61
I Live Here
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I Live Here
Joined: Oct 2003
Posts: 11,684
W. Kentucky
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Maybe the plug under the rear main was driven in to far? I don't know what I was thinking when I posted this. If it was driven in to far the engine wouldn't get any oil but the filter would. My oldtimers is showing up.
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Re: No oil in filter after 5 dyno pulls, but excellent oil press
[Re: justinp61]
#2314935
06/02/17 12:48 AM
06/02/17 12:48 AM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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my plug is out I checked today on a bare block & 7&3/4" (instead of the 7&1/4 I remembered) down from flush from the top block oil sender boss is in the middle of the 2 horizontle passages.
live every 24 hour block of time like it's your last day on earth
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Re: No oil in filter after 5 dyno pulls, but excellent oil press
[Re: Cab_Burge]
#2315095
06/02/17 01:43 PM
06/02/17 01:43 PM
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Joined: May 2008
Posts: 1,131
Thigh-Gap Junction
@#$%&*!
New user name, Same old jerk!
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New user name, Same old jerk!
Joined: May 2008
Posts: 1,131
Thigh-Gap Junction
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That is NOT fully correct. All available paths will see flow, the path of least resistance will see the MOST flow. It turns out that Wikipedia has a page on just this subject. Sooo, I'm going to take the 'path of least resistance' and just post a link: https://en.wikipedia.org/wiki/Path_of_least_resistance 
Last edited by @#$%&*!; 06/02/17 03:24 PM.
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Re: No oil in filter after 5 dyno pulls, but excellent oil press
[Re: mopar68hemidart]
#2317164
06/06/17 03:16 PM
06/06/17 03:16 PM
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Joined: Apr 2005
Posts: 12
Clarence Center, NY
mopar68hemidart
OP
member
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OP
member
Joined: Apr 2005
Posts: 12
Clarence Center, NY
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Gents,
After several days of diagnosing this issue, my engine builder had a revaluation. After the Dyno, he had brought the engine back to his shop for some minor clean up. He had recalled removing my filter to get it ready to install a 90 deg offset filter housing and did me a favor and removed the filter and spun on a new filter. He had been sooooo busy that he forgot, even though he helped me pull the pan off and rear main cap off to verify presence of the cup plug that diverts the oil to the filter. I did measure the 7 1/4" dimension from the top of the "stove pipe" and it was all good. I was thinking it was something in the filter drain back check that prevented the filter from filling up with oil. It was a WIX filter and I was searching online for possible defects, but found nothing. Thanks for all of the feedback! Believe me, I wanted to strangle him, but he is an awesome guy and friend of mine. Hope you guys got a good laugh on this one.
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Re: No oil in filter after 5 dyno pulls, but excellent oil press
[Re: mopar68hemidart]
#2317167
06/06/17 03:28 PM
06/06/17 03:28 PM
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Joined: Aug 2003
Posts: 43,215
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,215
Bend,OR USA
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So what your saying is the new filter was put on and not ran? If so, good  If it was ran and there is no oil in it NOT GOOD  One of my SOP is to always change the oil and filter after 20 to 30 minutes run time on all my new motors on the dyno or running in the car and cut the oil filter open to check for debris in the pleats  New motors make metal, valve springs rubbing against the retainer and against each other on dual springs and so on. It is not possible to keep a motor too clean while assembling them, even in a clean room with clean suits  I found a eye lash in one oil filter   BTW, I highly recommend pre filling all oil filters before installing them
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: No oil in filter after 5 dyno pulls, but excellent oil press
[Re: mopar68hemidart]
#2317311
06/06/17 09:08 PM
06/06/17 09:08 PM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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we ain't laughing, we're here to solve problems & we've all been "there" (& worse). I measured my bare block & 7&3/4 not 7&1/4 is in that sweet spot of several inches of vertical passage inbetween the 2 horizontle passages that the plug needs to be. I will check closer tomorrow. there is a range a bit on either side of 7&3/4 but when I went 7&1/4 down the other day to check on the 7&1/4 I posted, 7&1/4 did not even reach the top horizontle passage so I went further down & 7&3/4 was in that good range. I will confirm for sure tomorrow. What Cab said, if the plug was missing then it dynoed 5 times on unfiltered (but new) oil which is much much better obviously than the passage blocked off somewhere along the line with the plug in the wrong place (other than the correct sweet spot) & it was not cuz you had psi.
live every 24 hour block of time like it's your last day on earth
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Re: No oil in filter after 5 dyno pulls, but excellent oil press
[Re: Cab_Burge]
#2319066
06/10/17 07:19 PM
06/10/17 07:19 PM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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I checked closer today & measured 7 & 31/32" down from the top threaded boss flat will put it squarely in the sweet spot inbetween the 2 horiontle passages.
live every 24 hour block of time like it's your last day on earth
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