ls1 lifter noise - LS1TECH

Go Back   LS1TECH > LS1-LS2-LS3-LS6-LS7 PERFORMANCE > Generation III Internal Engine
Log In 
Search


Generation III Internal Engine
1997-2006 LS1 | LS6
Sponsored by
Texas Speed & Performance


     
Old 04-25-2016, 05:00 PM
How-Tos on this Topic
 
Last edit by: IB Advertising
See related guides and technical advice from our community experts:

Browse all: Steering and Suspension Guides
Print Wikipost

ls1 lifter noise

Reply
 
Thread Tools Search this Thread
Old 07-03-2012, 07:47 PM   #1
Teching In
 
Join Date: May 2011
Posts: 48
Default ls1 lifter noise

i have a 2001 pontiac trans am m6 i just recently did a ms3 cam swap in my car and also did luntai dual valve springs with seats, retainers, locks, seals, locators and tsp hardened 7.4" pushrods, ls7 lifters, a melling high volume oil pump and a ls2 strengthened timing chain. about a week after i did this it started making a really bad ticking noise sounded like a lifter and a teacher at my school (uti) said i had a collapsed lifter so i replaced them again and its still making the noise. ive checked the lifter pre load multiple times, checked the cam bolts to make sure they werent backing out, ive checked my header bolts multiple times and none of it fixed the problem. friday night i pulled the valve covers back off to check the rocker arm geometry and when the rockers where off i went ahead and pushed on the pushrods to see if the lifters would plunge and both the lifters on cylinder 7 would plunge. im not sure if this is from them bleeding down too fast or not getting adequate oil to them. any help is greatly appriceated since i have been going at this for about 3 weeks now and havent figured out whats wrong.
thanks, collin
ws6_34 is offline   Reply With Quote
Old 07-03-2012, 09:12 PM   #2
Technical Facepalm
iTrader: (2)
 
crainholio's Avatar
 
Join Date: Aug 2003
Posts: 2,980
Default

How much lifter preload are you running, and how did you measure it?
__________________
Psychology Today studies LS1Tech "please help!!" posters:
"The Dunning-Kruger effect describes a cognitive bias in which people perform poorly on a task, but lack the meta-cognitive capacity to properly evaluate their performance. As a result, such people remain unaware of their incompetence and accordingly fail to take any self-improvement measures that might rid them of their incompetence."
crainholio is offline   Reply With Quote
Old 07-03-2012, 10:22 PM   #3
TECH Apprentice
iTrader: (3)
 
Join Date: Jun 2012
Location: Long Island
Posts: 309
Default

noramlly valvetrain noise is from not having the correct pushrod length from what i have been reading
SStressin is offline   Reply With Quote
Old 07-04-2012, 04:07 AM   #4
TECH Junkie
iTrader: (33)
 
LS1-450's Avatar
 
Join Date: Aug 2005
Posts: 3,777
Default

If the valve wipe pattern is good, there is no problem. Lifter noise (sounds like a sewing machine) is common. The more you load the rockers, the more noise you're gonna get. I believe that it's the heavily loaded needle bearings in the rockers. Others will claim that it's the dual springs. Personally, I've never heard a spring make a noise from compressing & unloading. It's the higher spring force from the dual springs applied to the needle bearings in the rockers that makes the sound, IMO.

#7 is last to get oil & first to drain. Don't worry about being able to push the pushrod into the lifters there. Again, if the valve wipe pattern is good, there is not issue.
__________________
2003 LSX MUNSTER (NB-MX5)

Notable people: Mr. Hutter, (Ron) Hutter racing engines
.......................Tony Mamo, Mamo Motorsports
LS1-450 is offline   Reply With Quote
Old 07-04-2012, 10:05 AM   #5
Teching In
 
Join Date: May 2011
Posts: 48
Default

i have 1/2 a turn of pre load after zero lash to 22 ft lbs and ive been told that is in the range of what you want to have. ive also checked to see if one of the trunions where just taking a crap on me from this high lift cam and spring pressure but they hardly had any side to side movement when bolted down and also didnt feel like they had a bind in them when i checked them with them off the car. and will cylinder 7 lifters bleed down 30 mins after the car has been off? i didnt know they would bleed off that fast
ws6_34 is offline   Reply With Quote
Old 07-04-2012, 10:08 AM   #6
Teching In
 
Join Date: May 2011
Posts: 48
Default

ohhh and also this isnt the normal ls sewing machine noise the valvetrain makes. this is more of a tapping noise that increases frequency with rpm
ws6_34 is offline   Reply With Quote
Old 07-04-2012, 10:24 AM   #7
TECH Addict
iTrader: (2)
 
Darkman's Avatar
 
Join Date: Apr 2009
Location: Spring, Texas
Posts: 2,175
Send a message via ICQ to Darkman
Default

That preload is only 0.024" (uncorrected) or 0.0133" (corrected) which is quite small. I think the minimum acceptable preload is larger.

See:
Lifter pre-load?
Darkman is offline   Reply With Quote
Old 07-04-2012, 10:41 AM   #8
Teching In
 
Join Date: May 2011
Posts: 48
Default

how did you figure out .024"?
ws6_34 is offline   Reply With Quote
Old 07-04-2012, 10:50 AM   #9
Teching In
 
Join Date: May 2011
Posts: 48
Default

ohh well i called texas speed and they said with the ms3 cam and 7.4" pushrods u want from 1/2 turn to 3/4 of a turn after zero lash.
ws6_34 is offline   Reply With Quote
Old 07-04-2012, 10:51 AM   #10
TECH Addict
iTrader: (2)
 
Darkman's Avatar
 
Join Date: Apr 2009
Location: Spring, Texas
Posts: 2,175
Send a message via ICQ to Darkman
Default

Quote:
Originally Posted by ws6_34 View Post
how did you figure out .024"?
The method that specifies preload based on the number of turns (aka Shane's method) assumes 0.047" to 0.049' of preload for each turn, which is 0.024" of 1/2 turn. This "flat-rate per turn assumption" is a little off, but usable within the applicable range. (Corrected numbers are contained in the other thread I referenced.)
Darkman is offline   Reply With Quote
Old 07-04-2012, 10:53 AM   #11
TECH Fanatic
iTrader: (14)
 
Join Date: Aug 2009
Location: Charlotte NC
Posts: 1,648
Default

Quote:
Originally Posted by ws6_34 View Post
how did you figure out .024"?
Read Darkman's attached link.
__________________
98 Z28...799 Heads, LS6 Intake, 5308 Cam, Linginfelter Oil Pump, LS7 Lifters, LS2 Timing Chain, SLP Lid and Red FRC's. RevMax 2800 Stall, Hyperflex Suspension Bushings and Motor Mounts, Drilled and Slotted Rotors.

2008 Corvette CRM 3LT. C.A.I., ZR1 exhaust w/NPP.
LS1121 is offline   Reply With Quote
Old 07-04-2012, 03:53 PM   #12
TECH Resident
iTrader: (5)
 
Join Date: Jan 2012
Location: NH/MA
Posts: 876
Default

The amount of preload you need is not determined by your cam or pushrods...it is the lifters. 1/2 to 3/4 seems pretty light to me, that is what is used on short travel lifters.
therabidweasel is offline   Reply With Quote
Old 07-04-2012, 06:14 PM   #13
Teching In
 
Join Date: May 2011
Posts: 48
Default

ok well i just replaced the oil pump o ring and i drove it for 20 mins and it never made the noise. and thats just what texas speed said it should be within 1/2 to 3/4 of a turn
ws6_34 is offline   Reply With Quote
Old 01-26-2016, 12:28 AM   #14
Teching In
 
Join Date: Dec 2015
Posts: 4
Default

Okay guys I have a question. I have 2002 ss six speed camaro. I jus recently like yesterday came to the same problem over again. I replace my lifters my cam my timer chain. Resurface my heads an re done my valves an. THe o ring We let the car run for like 20 mins after we put everything together. At first it wasn't no ticking then I drove an the ticking came back again. Smh an my oil gauge jumping Again An I ask my friend that replace my lifters how long did he let them soak in oil. He said for like a hour or two So I'm askin could that been the problem. My lifter was suppose to b in oil longer
Llchunky B Bashir is offline   Reply With Quote
Old 01-26-2016, 12:57 PM   #15
TECH Fanatic
 
gagliano7's Avatar
 
Join Date: Aug 2005
Location: Monroe,NY
Posts: 1,427
Default

The lifters sitting in oil isn't your problem. They pump up in 5 minutes. I have morel 5315 lifters and the said just coat with oil no need to soak them. No problems here. Make sure you don't have an exhaust leak. Since your gauge is jumping around maybe you pinched the o-ring installing it.
__________________
http://s302.photobucket.com/albums/nn97/gagliano777/
Future Engine LQ4 AI 243 Ported Heads
Cam Motion 225/231 114+3 .598 .587

1992 Chevy pickup 2wd 5 speed manual LM7 5.3 Heads
1 3/4 LT headers,PRC 2.5 5.3 heads 58cc
Cam Motion 222/226 115+3 .600 .600 cam
TBSS Intake Manifold 8.1 injectors
gagliano7 is offline   Reply With Quote
Reply


Similar Threads
Thread Thread Starter Forum Replies Last Post
Lifter noise after rebuild General2.0 Generation III Internal Engine 7 06-27-2016 05:39 PM
Lifter tap?? Kip Fabre Generation III Internal Engine 8 04-25-2014 11:47 AM
LS2 GTO Valvetrain/lifter noise thendawg Generation IV Internal Engine 5 06-20-2013 10:18 PM
pushrod length questions anotheraznguy Generation III Internal Engine 21 10-25-2011 09:14 PM
GM ls7 lifters failed RIC3ATR02 Generation III Internal Engine 22 05-09-2011 11:30 AM


Tags
bad, cam, engine, lifter, lifters, ls1, ls1tech, ls7, making, ms3, noise, noisy, rocker, tic, trans

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


 

All times are GMT -5. The time now is 04:47 PM.