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oil pressure issue
https://www.slantsix.org/forum/viewtopic.php?t=34057		 Page 1 of 2
Author:  mjwharff [ Sun Mar 01, 2009 7:17 pm ]
Post subject:  oil pressure issue
Hi all name is Mike. I just bought a 1970 dodge d100 and found this site through sweptline.org. Glad to see this site as it has helped me get my truck running better. Ok now the problem I just started having is when I get up to 50-55 mph the oil pressure drops below the quarter line on the guage, don't know how much lower it will go I didn't go any faster. If I let up on the gas it goes back up to over half where it normally runs. Anyone konw what the problem might be or at least where I should start? Thanks for your time.
Author:  madmax/6 [ Sun Mar 01, 2009 7:23 pm ]
Post subject: 
I would put a real pressure gauge in it and see what numbers its reading,mark
Author:  dakight [ Mon Mar 02, 2009 3:37 am ]
Post subject: 
Definitely put a real gauge in the line but the first place I would look is the oil pressure relief valve on the oil pump. Sludge and debris can make its operation sluggish and erratic.
Author:  Doc [ Mon Mar 02, 2009 10:04 am ]
Post subject: 
If this is true pressure behavior, it sounds like a plugged oil pick-up screen or dirty oil filter.
DD
Author:  69a100 [ Mon Mar 02, 2009 11:43 am ]
Post subject: 
Quote:
If this is true pressure behavior, it sounds like a plugged oil pick-up screen or dirty oil filter.
DD
I would have to agree here, or you might be a quart or 2 low. If oil's full then the above might be the case. If there's room in the crankcase, add a quart of Tranny fluid and drive it for about 100 miles and do a oil change and see what the results are.
Author:  mjwharff [ Mon Mar 02, 2009 4:20 pm ]
Post subject:  uh
ok so i went out and warmed my truck up to see what was going on cause last night she took forever to start. She warmed up fine no problems. I got in and hit the gas acouple of time and the oil pressure shot down low again but this time the temp gauge shot down too. I start thinking my gauges are just jacked but when I look under the hood the hose from the radiator to the block looks like a blown up balloon. :shock: Ok so I just bought this truck and have never really worked on anything but a vw before so I have no clue. Help please!
Author:  mjwharff [ Wed Mar 11, 2009 10:03 pm ]
Post subject: 
I pulled the oil pan and took the screen off to clean it out. there was a bunch of splinterd hard plastic inside. I was thinking some kind of washer to hold the screen in????
Author:  75duster [ Wed Mar 11, 2009 10:09 pm ]
Post subject: 
im thinking broken umbrella valve seals, that and oil sludge flushing off the interior of the engine plugged up my pick up less than a month after i bought it
Author:  mjwharff [ Thu Mar 12, 2009 1:05 am ]
Post subject: 
well its been a little over a month since i bought mine. so just pop the valve cover and i should be able to se them??? thanks for your help. trying to figure this all out on my own is a pain. my friends look at this engine and don't want to touch it.
Author:  Charrlie_S [ Thu Mar 12, 2009 4:37 am ]
Post subject: 
Quote:
I pulled the oil pan and took the screen off to clean it out. there was a bunch of splinterd hard plastic inside. I was thinking some kind of washer to hold the screen in????
Could be the plastic teeth from the timing gear
Author:  66aCUDA [ Thu Mar 12, 2009 6:13 am ]
Post subject: 
Also could be teeth off of a dist. gear.
Frank
Author:  SlantSixDan [ Thu Mar 12, 2009 7:57 am ]
Post subject: 
Clean the plastic crumbs. Are they...black? Yellow? Light brown? Dark brown?
Author:  mjwharff [ Thu Mar 12, 2009 9:50 am ]
Post subject: 
light brown, almost orange
Author:  SlantSixDan [ Thu Mar 12, 2009 9:55 am ]
Post subject: 
Okeh, that'll be camshaft sprocket tooth chunks and/or bits of distributor drive pinion. Pull the distributor and verify the drive pinion's in one piece and still has all its teeth…then get set to put in a new timing chain and sprocket set.
Author:  mjwharff [ Thu Mar 12, 2009 12:30 pm ]
Post subject: 
so the timing sprockets are made of plastic not metal?? or do you meen if the distibutor is jacked it jacked up the timing sprockets and chain? and if i have to do all this is there a link somone knows of to help me do this. sorry kinda new trying to learn. Thanks for your help
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