03 hemi.. installed custom grind cam, New lifters, 6.1L timing set, oil pump, springs, rods, and chain tensioner.. it idles great, runs good, but have this annoying whine. Only when accelerating. .. does it in park, neutral, drive.. I taken the belt of and ran it and noise is still there.... Who else has the noise and what was done to fix it or did u leave it alone.. thanks for any input.
engine whine after cam swap, who has it.... i do:(
smith92rc
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Sometimes, things don't go as smooth as we would like them to be. Live and learn.:thumb:
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yup, mine ran for 3 days after the head & cam swap. Then the impeller fell off of the brand new water pump and the thing literally melted down in 4 miles between my house & the gym. Wound up having to have a whole new engine built and installed. Why ? Because the day after I finished the original swap, I had major shoulder & bicep surgery and my arm was in a cast/ brace for the next 4 months.
We've all been there dude. Just build it back better this time. Git 'er dun !
Ok took front cover off. I saw no where it is rubbing. I had to use rtv on case cover. I think all that metal looking stuff is actually rtv that got chewed by cam sproket. Now the whining may be the oil pump. When I turn motor over by hand the oil pump hisses like air escaping. Under higher rpms I could see where this might could make the sound. Here some pics...
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Is the bottom sprocket spacer on there correctly. The timing set I just installed had the crank gear then a spacer that helps align the oil pump.
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I think it depends on the timing set you have also. The crower set I used had the cam/crank gears chain and tensioner then the oil pump drive sprocket. 1.75" hole in center with 3-4 raised and lowered sections on a round collar that fits over crank between gear and oil pump
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I installed a Mullins oil pump a few months back and have no issues. It came with two different relief springs so you can choose what you want.
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Hey greg.. any noise from the pump. Did u change the spring or leave it how it came. Did u have to center it on the crank and if so how did u do it. Who else is using the melling oil pump as an upgrade. I just don't want to do this again. Making sure all my ducks are in a row... thanks..
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I installed the 65psig spring and primed the pump with lube. I didn't do anything special as for installing it. No noise from the pump that I can detect. I took the pan down and inspected the pickup tube and installed a new "O" ring. When I got the front back on I primed the engine through the oil pressure sensor hole with 2 quarts of oil. Haven't had any problems from it.
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The instructions come with the pump, you unscrew a plug and take out the spring and replace it with the optional spring and tighten the plug. I think there is only something like 10 psi difference between the two springs. I believe it did come with a pickup tube O ring, but I used a new one from the dealer.
Ok. Thanks. In your thread on loss of oil pressure, u mentioned something about the harmonic balancer might have been put on too far damaging the pump. I put mine on until it bottomed out. I wonder if it could have been rubbing the pump causing my whine issue.. Idk though..
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If I remember right there is a shoulder it goes against and can't go on too far. Just make sure you prime the engine/pump before starting the engine.
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