Is this a sewing machine noise?
Thread Starter
Racer
Joined: Nov 2014
Posts: 276
Likes: 6
[QUOTE=vettenuts;1591849759]What is the cam and what is the lifter preload? Which lifters?
Sounds like sewing machine noise to me, and the camera usually makes it sound worse than it is.[/QUOT
Stock lifter and I don't know the preload because I didn't do the install. Comp cam adv dur: 277 287
dur: .050 227 234
Sounds like sewing machine noise to me, and the camera usually makes it sound worse than it is.[/QUOT
Stock lifter and I don't know the preload because I didn't do the install. Comp cam adv dur: 277 287
dur: .050 227 234
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Please do a VID from the top. Do a little engine revving and RPM deceleration.
Who did the install???
There is a LOT to doing a quality CAM install.
Here are a few of them::
Checking the lifter preload to select the correct push rod length, Installing NEW LIFTER BUCKETS, Checking the rockers and rocker pedestal stand for wear, and last but not least,, spending the cash and installing NEW LIFTERS that are able to live up to the increased lift and higher spring pressures.
Did they install new valve springs?????
Bill
Who did the install???
There is a LOT to doing a quality CAM install.
Here are a few of them::
Checking the lifter preload to select the correct push rod length, Installing NEW LIFTER BUCKETS, Checking the rockers and rocker pedestal stand for wear, and last but not least,, spending the cash and installing NEW LIFTERS that are able to live up to the increased lift and higher spring pressures.
Did they install new valve springs?????
Bill
Last edited by Bill Curlee; Mar 25, 2016 at 03:02 PM.
Thread Starter
Racer
Joined: Nov 2014
Posts: 276
Likes: 6
Please do a VID from the top. Do a little engine revving and RPM deceleration.
Who did the install???
There is a LOT to doing a quality CAM install.
Here are a few of them::
Checking the lifter preload to select the correct push rod length, Installing NEW LIFTER BUCKETS, Checking the rockers and rocker pedestal stand for wear, and last but not least,, spending the cash and installing NEW LIFTERS that are able to live up to the increased lift and higher spring pressures.
Did they install new valve springs?????
Bill
Who did the install???
There is a LOT to doing a quality CAM install.
Here are a few of them::
Checking the lifter preload to select the correct push rod length, Installing NEW LIFTER BUCKETS, Checking the rockers and rocker pedestal stand for wear, and last but not least,, spending the cash and installing NEW LIFTERS that are able to live up to the increased lift and higher spring pressures.
Did they install new valve springs?????
Bill
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Thread Starter
Racer
Joined: Nov 2014
Posts: 276
Likes: 6
My trans am had that ticking sound as well. It was the normal cammed ls sound when cammed.
https://youtu.be/RPSKko6YzZQ
https://youtu.be/RPSKko6YzZQ