Drop in oil pressure upon braking
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Drop in oil pressure upon braking
Pretty self explanatory, but when I get on the brakes hard, my oil pressure goes down to zero, then the check guages come on, then when im done braking and the nose of the car comes up, it goes back up to normal. Any ideas? We tack welded the pickup tube by the way.
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My pickup on my last motor fell off into the pan and my gauge did the same thing. I just tried to keep it full, something I didnt try was putting more oil in the pan...like another quart.
When I took the motor apart, the only damage was a pitted cam, everything else looked fine.
When I took the motor apart, the only damage was a pitted cam, everything else looked fine.
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My pickup on my last motor fell off into the pan and my gauge did the same thing. I just tried to keep it full, something I didnt try was putting more oil in the pan...like another quart.
When I took the motor apart, the only damage was a pitted cam, everything else looked fine.
When I took the motor apart, the only damage was a pitted cam, everything else looked fine.
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Dont think you have to worry about any serious damage, or at least I had very minimum amount. I ran that setup at the track and on nitrous too..no severe issues.
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From what ive been told by a very knowledgable person is that if the oil pressure did drop to 0, that the hydraulic lifters would make a ton of noise. There is no loud clicking from anywhere, so is there a possibility that the problem is the guage? I will hook up a oil pressure guage to the block and see what it says.
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From what ive been told by a very knowledgable person is that if the oil pressure did drop to 0, that the hydraulic lifters would make a ton of noise. There is no loud clicking from anywhere, so is there a possibility that the problem is the guage? I will hook up a oil pressure guage to the block and see what it says.
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If it was the guage your oil pressure would read funny all the time. Bein that this is occuring when you are on the brakes, most likely the pick up fell into the bottom of the pan. Whoever told you if the oil pressure did drop to 0 the lifters would make a ton of noise is right. most likely your pressure is droping off severely, but not all the way to 0. The oil pressure guages from the factory are not the most accurate, kind of like the rpm/tack. If the engine is not makin a **** ton of noise, you still are getting oil to all the parts in the engine. Maybe try sticking a heavy magnet on the pan and move it around to see if the pickup is actually in the bottom of the pan now?
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If it was the guage your oil pressure would read funny all the time. Bein that this is occuring when you are on the brakes, most likely the pick up fell into the bottom of the pan. Whoever told you if the oil pressure did drop to 0 the lifters would make a ton of noise is right. most likely your pressure is droping off severely, but not all the way to 0. The oil pressure guages from the factory are not the most accurate, kind of like the rpm/tack. If the engine is not makin a **** ton of noise, you still are getting oil to all the parts in the engine. Maybe try sticking a heavy magnet on the pan and move it around to see if the pickup is actually in the bottom of the pan now?
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http://shbox.com/1/aux_oil_port.jpg
Get the mechanical gauge on there. If it is loosing pressure, fix it! Any time spent at low oil pressure is asking for it...
Get the mechanical gauge on there. If it is loosing pressure, fix it! Any time spent at low oil pressure is asking for it...
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Good call..when i drive around town normal the OP stays pretty steady, increases/decreases with rpm as it should, but i did get on the gas hard in 3rd and saw the needle bounce around a tad. It happens everytime i brake hard, so im thinking the pickup tube might have come loose. From what i understand there is a port behind the oil filter where a mechanical guage can be installed. Is it pretty easy to find and screw in?
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http://shbox.com/1/aux_oil_port.jpg
Get the mechanical gauge on there. If it is loosing pressure, fix it! Any time spent at low oil pressure is asking for it...
Get the mechanical gauge on there. If it is loosing pressure, fix it! Any time spent at low oil pressure is asking for it...
#18
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Yea dude, your guage is right at no oil pressure. Thats why Im on my second engine right now. I made it 2 years and 30k of all highway driving, blipping the throttle at every stop sign to bring the oil pressure back up. Ended up with a "knock knock knock knock knock knock". Fix it sooner than later.
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My car will have the stock gauge drop real low and on a rare occation the check gauges light will come on but i also have a mech gauge installed and that has never dropped below 20psi even when my idle was set at like 500 and you would let off the gas and the rpm would drop real low. I would say mine is more from a low low drop in RPM as opposed to the slowing down though....