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I have a 496 and I am just looking for some input. This is the first Mercury engine I have dealt with so I am a little ignorant on the 496!
I am looking for common oil preassure at idle, aswell as at top RPM 4800 or so....
I am currently around 22-25 psi at idle and 50ish at 4800RPM...
Any input would be appreciated.
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I hear it reads much better when it's filled up to the full mark on the dipstick. Oh, and even better when the shifter is in neutral and the engine starts. :D :D :D
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I have a 496 and I am just looking for some input. This is the first Mercury engine I have dealt with so I am a little ignorant on the 496!
I am looking for common oil preassure at idle, aswell as at top RPM 4800 or so....
I am currently around 22-25 psi at idle and 50ish at 4800RPM...
Any input would be appreciated.
Can't tell you the exact pressure at idle without looking at my boat. I just know if something doesn't look right. As far as the RPM yes 4400-4800. This link will help a little.
http://www.mercurymarine.com/496_mag_sd_-_375_hp
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Can't tell you the exact pressure at idle without looking at my boat. I just know if something doesn't look right. As far as the RPM yes 4400-4800. This link will help a little.
http://www.mercurymarine.com/496_mag_sd_-_375_hp
Unfortunately that site doesn't help much and everyone I ask has a different answer. Thanks for the help though voodoo :)
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If your at 4800rpm now, with the heat on, you sound like you have it propped right, and the oil pressure sounds good too.
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Mine is about 20-25 psi at idle, and around 45 cruising. Since I am running 10-30 M1, I think that is just fine. That's about all the pressure one could expect from a stocker.
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Thanks alot for your input...............really appreciated!!!!!
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Beer-30, I'm surprised your only ruuning 10-30, in the summer heat. After a long run, when you build some heat, you don't see a dropoff of pressure?
I hear the Mobil 1 15-50 EP is good stuff.
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Beer-30, I'm surprised your only ruuning 10-30, in the summer heat. After a long run, when you build some heat, you don't see a dropoff of pressure?
I hear the Mobil 1 15-50 EP is good stuff.
Nope, Not really. With an oil cooler, you generally have pretty stable temp - especially "low" HP engines. After a WOT run from Springs back to the Channel, it is just slightly above 20 @idle. It only takes 7 lbs or so to run a motor, so the rest is HP loss from driving the pump anyway. I wouldn't expect much more pressure out of a stocker anyway. These motors are know for low psi. The 10-30 seems fine in there.