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Post Info TOPIC: 283 low oil pressure at low rpm


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283 low oil pressure at low rpm


Oil pressure light coming on when warm and at low rpm. Oil level is fine. Hoping its a clogged filter. If not, how hard to swap out the oil pump?

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1963 Parisienne 2DRHT
2004 Lincoln LSE



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i would put a mechanical guage on it first to see actual pressure. it could be the sending unit......i put a "T" fitting on my car and
run both a light and a guage



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bob lewis


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Thanks, beaucarlo. That gives me an excuse to mount up a vintage sun mechanical gauge I picked up along the way. I'd love to keep the idiot lights functioning as well. Is that T part hard to find?

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1963 Parisienne 2DRHT
2004 Lincoln LSE



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Hi....any hardware store should have the parts you need...i would use a 1/8 T with all female ports...the port to the engine block is 1/8 pipe...use a 2x1/8 inch brass coupler to raise the T high enough so everything can be tighten down...your sensor will fit in one of the ports...the adapter for the mechanical guage will fit in the other port...use pipe sealer on all the pipe connections

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bob lewis


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10 PSI per 1000 rpm is acceptable.  If all else is ok, you could run a thicker oil.

 



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Beaumontguru

MY BEAUMONT HAS 4 STUDDED TIRES AND 2 BLOCKHEATERS......AND LOTS OF OIL UNDERNEATH



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Ditto on the mechanical gauge.

I had a similar problem years ago, light came on at idle and would go out with rpm increase. It persisted and even though it seemed to run ok we tore it down to have a look - spun bearing.

Hope yours is an easy fix.



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72 Nova SS,   66 Beaumont Sport Deluxe,   09 Pontiac Solstice GXP Coupe



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Are the plugs clean?

Get a copper line and fittings for the oil pressure gauge, not the plastic line.

I got the T parts at a good Home Hardware.

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63 Pariesienne sport coupe (The Big GTO), black, maroon interior, 409 4 speed; former owner of a 59 El Camino, 63 Corvette SWC, 62 Chev Bel Air SC.

Mahone Bay, NS Still not old enough to need an automatic



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beaucarlo wrote:

i would put a mechanical guage on it first to see actual pressure. it could be the sending unit......i put a "T" fitting on my car and
run both a light and a guage


 X 2 !!! I did the T fitting to run both the gauge and the idiot light on my 74 Chev. Twice the warning is better than just one warning. 



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1957 Pontiac Pathfinder Deluxe sedan restored 261 six

1974 Chevrolet Caprice Estate wagon low milage original 400 V-8



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DonSSDD wrote:

Are the plugs clean?

Get a copper line and fittings for the oil pressure gauge, not the plastic line.

I got the T parts at a good Home Hardware.


 X 2 !!! The plastic tubing is the dumbest thing going. 



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1957 Pontiac Pathfinder Deluxe sedan restored 261 six

1974 Chevrolet Caprice Estate wagon low milage original 400 V-8



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Snake oil for the win! Added half a can of seafoam in the crankcase, and drove it for the week. Drained it out, was really dark, but no chunks or crud. New filter (k&n) and new oil (20w50) topped off with half a bottle of marvels mystery oil. Drove real nice until I parked for a spell and got some heat soak! Could see the fuel bubbling in my clear filter. Good thing summer is done, will get a phenolic spacer for next year. Thanks all for the replies and advice. Until next time!

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1963 Parisienne 2DRHT
2004 Lincoln LSE



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Add some Seafoam to the gas tank too.

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63 Pariesienne sport coupe (The Big GTO), black, maroon interior, 409 4 speed; former owner of a 59 El Camino, 63 Corvette SWC, 62 Chev Bel Air SC.

Mahone Bay, NS Still not old enough to need an automatic



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Have you had good luck with the Seafoam? Our neighbour at the lake took his ailing outboard engine in for service and they told him they told him the carbs were gummed up, too much Seafoam.

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1966 Strato Chief 2 door sedan 283 "survivor"


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Carl Stevenson wrote:

Have you had good luck with the Seafoam? Our neighbour at the lake took his ailing outboard engine in for service and they told him they told him the carbs were gummed up, too much Seafoam.


       x2 .     We used it in a nice quiet 4.8LS  and now it sounds like a knocker / ticker .  :(  



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1988 Chevrolet Suburban 9 pass 350 4 speed "survivor"  



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I've never used Seafoam in the oil, just in the tank.

I've had nothing but good luck with Seafoam in the gas. I use it in outboards, 15 years and never had to touch a carb for any reason. Used in my 283 and 409, 15 years, no problems.

I had an 87 Dakota, 2 barrel Holley, every year or so it would start coughing and spitting, rough idle, one Seafoam treatment and it would clear up for another year or so.

Outboards and everything else can have problems due to ethanol. I use only ethanol free in anything with a carb, lawn mowers, you name it. If an outboard mechanic told me the carbs gummed up due to Seafoam, you didn't use enough or you need a new mechanic, IMHO.

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63 Pariesienne sport coupe (The Big GTO), black, maroon interior, 409 4 speed; former owner of a 59 El Camino, 63 Corvette SWC, 62 Chev Bel Air SC.

Mahone Bay, NS Still not old enough to need an automatic

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