1956322 Posted October 25, 2018 Share Posted October 25, 2018 So everytime I change my oil on first start up until pressure hits I get noise..I think knocking.. As soon as there's any movement on my oil pressure gauge dead silent...I can let it sit for weeks and silent on start up.. Never any bad noises or bad pressure just that first start up after a change.. I've had other vintage engines do similar things.. Just wondering if anyone else experiences this.. Been doing it for years and is driven Dailey so I doubt there's any real problem... Link to comment Share on other sites More sharing options...
gdmn852 Posted October 25, 2018 Share Posted October 25, 2018 Oil pump may lose prime when oil is drained would be my guess,as noise stops when oil pressure goes back up .have you dropped pan and check oil pickup on pump? Link to comment Share on other sites More sharing options...
1956322 Posted October 25, 2018 Author Share Posted October 25, 2018 No I haven't I did ask my wife where she thought the noise was coming from.. She thought top of motor maybe towards front.. Thinking lifters losing prime.. Although it sounds way worse in the car lol Link to comment Share on other sites More sharing options...
Grimy Posted October 25, 2018 Share Posted October 25, 2018 If you changed the filter, did you prime the filter (i.e., fill at least partially with oil) if your configuration permits this? Link to comment Share on other sites More sharing options...
1956322 Posted October 25, 2018 Author Share Posted October 25, 2018 I'm running a spin on filter but no I don't pre fill them Link to comment Share on other sites More sharing options...
ols car dog Posted October 25, 2018 Share Posted October 25, 2018 That's your problem,,fill it before you install it ,problem solved!!! 1 Link to comment Share on other sites More sharing options...
1956322 Posted October 25, 2018 Author Share Posted October 25, 2018 But what about all the nailheads running the canister filter that can't be pre filled.. Link to comment Share on other sites More sharing options...
old-tank Posted October 25, 2018 Share Posted October 25, 2018 22 minutes ago, 1956322 said: But what about all the nailheads running the canister filter that can't be pre filled.. You can easily put a quart in the canister before installing. 3 Link to comment Share on other sites More sharing options...
NTX5467 Posted October 26, 2018 Share Posted October 26, 2018 If it's "up top", then it's probably the lifter galleys needing to be "re-charged" and purged of air. That was a common situation on earlier '70s Chevy big-blocks until they started using screw-in galley plugs that had a .030" hole drilled in them (per a prior TSB about this). I certainly would pre-fill the oil filter before installation. Then add the balance of the quart to the sump after the rest of the oil. Can't hurt. Might unplug the coil wire and spin the motor with the starter right after the change. When oil pressure comes up, then plug the coil wire back in and enjoy. NTX5467 1 Link to comment Share on other sites More sharing options...
1956322 Posted October 26, 2018 Author Share Posted October 26, 2018 Not a bad idea I'll try it on the next oil change... Link to comment Share on other sites More sharing options...
Barney Eaton Posted October 28, 2018 Share Posted October 28, 2018 Maybe we should ask the persons age when they post a question.........that might allow us to adjust our answers based on age. After maybe 30 years of working on cars, most of us have already made lots of mistakes and sometime "presume" the person asking the question has some history with old cars. There are just a lot of "things" we believe everyone already knows........based on our years of mistakes. 1 Link to comment Share on other sites More sharing options...
Joseph P. Indusi Posted October 28, 2018 Share Posted October 28, 2018 I rarely make a misteak! Joe 3 Link to comment Share on other sites More sharing options...
NTX5467 Posted October 31, 2018 Share Posted October 31, 2018 Do you do regular steaks? NTX5467 1 Link to comment Share on other sites More sharing options...
EmTee Posted November 17, 2018 Share Posted November 17, 2018 On 10/30/2018 at 11:03 PM, NTX5467 said: Do you do regular steaks? C'mon -- give the guy a brake... 1 Link to comment Share on other sites More sharing options...
NTX5467 Posted November 18, 2018 Share Posted November 18, 2018 (break) . . . er you mean "stop it"? 1 Link to comment Share on other sites More sharing options...
buick man Posted November 24, 2018 Share Posted November 24, 2018 I too never make mistakes but … apparently one day back in 1967, I made what everyone thought was a wrong mistake but turns out that in 1994 it was discovered that I had not and was right after all … so does that count ? 1 1 Link to comment Share on other sites More sharing options...
s_hilmoe Posted November 27, 2018 Share Posted November 27, 2018 I thought I was wrong once, but I was mistaken. 🤪 Link to comment Share on other sites More sharing options...
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