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#1
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SB Chevy Lifter Noise
I have a 350 that has excessive lifter noise that will not go away.
It almost sounds like the lifters just do not get enough oil or something. Have tried adjusting 1/4 & 1/2 & 3/4 & 1 full turn after clacking stops. none of those adjustment steps worked. Have installed new rocker arms and new pushrods. no help. Added powerpunch. no help Run 10-40 oil The motor is basically fresh and clean (new rings/bearings) 350 nothing special for 66 Impala SS Ragtop. flat top pistons camel hump heads (redone by professional) Edelbrock Performer intake Edelbrock carb. Reground cam 224 duration 467 lift could it be bad regrind or bad lifters... Any ideas would be appreciated, if nothing else, going to order a new cam/lifters to see if that helps. Only drove the car once last summer cause the noise annoys me so much.. (does sit in garage). Thanks! |
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#2
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Some cams and lifters tick no matter what you do.
"Rick2950" > wrote in message oups.com... >I have a 350 that has excessive lifter noise that will not go away. > It almost sounds like the lifters just do not get enough oil or > something. > > Have tried adjusting 1/4 & 1/2 & 3/4 & 1 full turn after clacking > stops. none of those adjustment steps worked. > Have installed new rocker arms and new pushrods. no help. > Added powerpunch. no help > Run 10-40 oil > The motor is basically fresh and clean (new rings/bearings) > 350 nothing special for 66 Impala SS Ragtop. > flat top pistons > camel hump heads (redone by professional) > Edelbrock Performer intake > Edelbrock carb. > Reground cam 224 duration 467 lift > could it be bad regrind or bad lifters... > > Any ideas would be appreciated, if nothing else, going to order a new > cam/lifters to see if that helps. Only drove the car once last summer > cause the noise annoys me so much.. (does sit in garage). > > Thanks! > |
#3
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Got oil pressure??? Theres no such thing as hydraulic lifters with
"normal" ticking noise no matter what you do. |
#4
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Got plenty of oil pressure 50-60lbs. and oil does come out of the
rockers when adjusting them. pater wrote: > Got oil pressure??? Theres no such thing as hydraulic lifters with > "normal" ticking noise no matter what you do. |
#5
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Rick2950 > wrote:
> Got plenty of oil pressure 50-60lbs. and oil does come out of the > rockers when adjusting them. > pater wrote: > > Got oil pressure??? Theres no such thing as hydraulic lifters with > > "normal" ticking noise no matter what you do. Lets see, flat spots on cam, pressed in rocker studs slowly pulling out. Then of course you can truly have a bad lifter. Don't take but a couple three lifters or so to make a hell of a racket. |
#6
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Edward Strauss wrote:
> Lets see, flat spots on cam, pressed in rocker studs slowly pulling > out. Then of course you can truly have a bad lifter. Don't take but > a couple three lifters or so to make a hell of a racket. Right....but none of the above could be considered "normal". The point is that if there is "ticking" lifter.....something is wrong. There is no situation where it could be considered "normal" to have to noisy lifter in these motors. Ian |
#7
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shiden_kai > wrote:
> Edward Strauss wrote: > > Lets see, flat spots on cam, pressed in rocker studs slowly pulling > > out. Then of course you can truly have a bad lifter. Don't take but > > a couple three lifters or so to make a hell of a racket. > Right....but none of the above could be considered "normal". The > point is that if there is "ticking" lifter.....something is wrong. There > is no situation where it could be considered "normal" to have to > noisy lifter in these motors. > Ian Ticking lifters are not normal. Never said that they were. Funny thing about this, I have a friend with a 2004 Sequoia that with the hood down you can't hear it running but, with the hood raised it sounds almost like a solid lifter motor. Dealer tells him it's normal... |
#8
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Edward Strauss wrote:
> Ticking lifters are not normal. Never said that they were. > Funny thing about this, I have a friend with a 2004 Sequoia > that with the hood down you can't hear it running but, with > the hood raised it sounds almost like a solid lifter motor. > Dealer tells him it's normal... We tell people all the time that "what sounds like a lifter noise" in their new generation small block chev engines is a normal noise. It's piston slap....but it does sound very much like lifter noise. Ian |
#9
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Edward Strauss wrote:
> > Ticking lifters are not normal. Never said that they were. > Funny thing about this, I have a friend with a 2004 Sequoia > that with the hood down you can't hear it running but, with > the hood raised it sounds almost like a solid lifter motor. > Dealer tells him it's normal... Of course its a product of the holy factories of TOYOTA, and couldn't possibly have a problem. <sarcasm off> Actually, a lot of fuel injected engines have pretty noisy fuel injectors, which sound a bit like lifters. As for the OP- this was said to be a "fresh" engine... makes me wonder if some crud from the reassembly process was missed, and got into several lifters causing them to leak down. Other than that, I'm a little baffled. I'm used to shaft-rocker engines where you bolt 'em together and they work- no diddling with rocker arm stud nuts, varying rocker angles, etc. |
#10
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Steve > wrote:
> Edward Strauss wrote: > > > > Ticking lifters are not normal. Never said that they were. > > Funny thing about this, I have a friend with a 2004 Sequoia > > that with the hood down you can't hear it running but, with > > the hood raised it sounds almost like a solid lifter motor. > > Dealer tells him it's normal... > Of course its a product of the holy factories of TOYOTA, and couldn't > possibly have a problem. > <sarcasm off> > Actually, a lot of fuel injected engines have pretty noisy fuel > injectors, which sound a bit like lifters. > As for the OP- this was said to be a "fresh" engine... makes me wonder > if some crud from the reassembly process was missed, and got into > several lifters causing them to leak down. Other than that, I'm a little > baffled. I'm used to shaft-rocker engines where you bolt 'em together > and they work- no diddling with rocker arm stud nuts, varying rocker > angles, etc. Your right it sounds like fuel injector clatter to me but, thats the point from where we are sitting it could be anything. Something had to be over looked, gravel in the engine, etc. Noises are hard enough to figure out when you are standing right next to it... |
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