Is There A Solution To The ''Sewing Machine" Sound
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Is There A Solution To The ''Sewing Machine" Sound GC oil has nothing to do with it. In fact that made my valve train a lot noiser. But i have in there 7.425" PRs.. Someone said that i should have went with 7.4" PRs...
Any idea on how to quiet the valve train? I am not sure if it could be a lifter or what...
Any idea on how to quiet the valve train? I am not sure if it could be a lifter or what...
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From: Bergen County, NJ
Don't guess, measure for the required lifter preload, get it set properly and you're valve train will be nice and quiet. If you an agressive acm lobe and high lift you'll hear it a little but will be pretty darn quiet if set up correctly.
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Originally Posted by DaddySS
Don't guess, measure for the required lifter preload, get it set properly and you're valve train will be nice and quiet. If you an agressive acm lobe and high lift you'll hear it a little but will be pretty darn quiet if set up correctly.
taklked with a lot of people, they all said 7.425" would be perfect.
it is a 228/232 .588/.595
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From: Chicago
Originally Posted by BBADWS6
The easiest way to get rid of the sewing machine sound is to put on loud exhaust.
uhhhhhhhhh my exhasut is loud
Cam + QTP LTs + O/R H Pipe + ! Chmaber Flows
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From: Bergen County, NJ
Originally Posted by TORCHD 02 TA
taklked with a lot of people, they all said 7.425" would be perfect.
it is a 228/232 .588/.595
it is a 228/232 .588/.595
Now, to a certain degree, you cannot make a 588 595 valve train (I assume an XER type lobe) silent - but you can make them only as noisy as they have to be.
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I have the same issue. I just upgraded my lifters to the Cadilac high performance lifters hoping it would go away. It made no change to the sound. I was thinking windage tray but I know it was clearnanced. I have attached the sound that my car makes does your sound like it? I have tried everything. My car has over 5k miles with a few track passes and lots of high speed rolls. I figured it would have blown up by now. There is no metal shavings on my drain plug. I am just tired of the noise. The car runs great I just hate how it sounds.
http://members.***.net/kane-forum/enginenoise.wma
Thanks,
Kane
http://members.***.net/kane-forum/enginenoise.wma
Thanks,
Kane
They are non adjustable rockers. I am using stck 6.0 heads and a small cam. The engine shop put 7400 in. What is weird is the sound is coming more from the bottom end not the top.
Kane
Kane
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From: Chicago
Originally Posted by 3.4camaro
put 3oz. of power steering fluid in the oil. It should make things quieter.
yea i am not too sure if i would do that
Originally Posted by Kaneman
I have the same issue. I just upgraded my lifters to the Cadilac high performance lifters hoping it would go away. It made no change to the sound. I was thinking windage tray but I know it was clearnanced. I have attached the sound that my car makes does your sound like it? I have tried everything. My car has over 5k miles with a few track passes and lots of high speed rolls. I figured it would have blown up by now. There is no metal shavings on my drain plug. I am just tired of the noise. The car runs great I just hate how it sounds.
http://members.***.net/kane-forum/enginenoise.wma
Thanks,
Kane
http://members.***.net/kane-forum/enginenoise.wma
Thanks,
Kane
wow yours is loud.... mine is not that loud at all. you can really hear it when driving next to a car or in a place where there is an echo....
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From: Chicago
Originally Posted by 85ta383
echo through your long tubes.. everything sounds louder with long tubes.. might check for an exhaust leak also.
when i did my LTs. i used the 3 layer copper gaskets with Stage 8 locking header bolts.. No leak for me
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From: Bergen County, NJ
Originally Posted by Kaneman
They are non adjustable rockers. I am using stck 6.0 heads and a small cam. The engine shop put 7400 in. What is weird is the sound is coming more from the bottom end not the top.
Kane
Kane
Kaneman mines at LEAST as loud as yours. I had longer pushrods in there and it was quiet but according to my tuner and engine builder lots of pre load is quiet but hurts performance and is not as durable. I had to change valvesprings anyways so when I did I checked the pre load and I was at .100 with a 7.4 so i backed it off to .50 with a 7.35 and it runs great but LOUD!!
it does run stronger up top though. Hope this is okay because the noise scares the **** out of me HAHA
Mines only audible at idle but it sounds EXACTLY like yours and its definitely valvetrain because it came the day I shortened the PR's
it does run stronger up top though. Hope this is okay because the noise scares the **** out of me HAHA
Mines only audible at idle but it sounds EXACTLY like yours and its definitely valvetrain because it came the day I shortened the PR's
My car has always runs great and you can not hear it at WOT just idle. I have Yellow Terra non adjustable rockers what is the easiest way to check pre load?
I had teh Comp R lifters in my car and with all of the reading I did you should have adjustable rockers with them because the pre load is a lot different then stock. I switched to the LS7 lifter hoping the noise would go away but no change which I thought was weird.
I am just glad that other people are having this issue. If it really is just pushrod length then cool, but the sound comes more from the bottom of the engine then the top.
Kane
I had teh Comp R lifters in my car and with all of the reading I did you should have adjustable rockers with them because the pre load is a lot different then stock. I switched to the LS7 lifter hoping the noise would go away but no change which I thought was weird.
I am just glad that other people are having this issue. If it really is just pushrod length then cool, but the sound comes more from the bottom of the engine then the top.
Kane
Originally Posted by cam
Kaneman mines at LEAST as loud as yours. I had longer pushrods in there and it was quiet but according to my tuner and engine builder lots of pre load is quiet but hurts performance and is not as durable. I had to change valvesprings anyways so when I did I checked the pre load and I was at .100 with a 7.4 so i backed it off to .50 with a 7.35 and it runs great but LOUD!!
it does run stronger up top though. Hope this is okay because the noise scares the **** out of me HAHA
Mines only audible at idle but it sounds EXACTLY like yours and its definitely valvetrain because it came the day I shortened the PR's
it does run stronger up top though. Hope this is okay because the noise scares the **** out of me HAHA
Mines only audible at idle but it sounds EXACTLY like yours and its definitely valvetrain because it came the day I shortened the PR's