Ticking thread #8 Million
Thread Starter
On The Tree
iTrader: (20)
Joined: Feb 2006
Posts: 101
Likes: 0
From: Riverside, CA (So Cal)
Ticking thread #8 Million Hello there, I recently finished a ls1/t56 swap in my RX7 and I had a question. There is a very small tick that seems to be coming from the top of the intake manifold, it sounds like its going super fast at idle, almost like the sound you hear if you were to pull the plug wire from the coil pack and hear the spark shooting across. But its pretty quiet. Since this is my first piston motor that i've worked on i'm not too sure, I heard ls1's are supposed to be noisy motors maybe thats it?
So should I assume its a bent valve? It's a 100% bonestock engine all it has is a custom exhaust from stock mani's back and a intake, 21K miles and its a 01' engine. Thats why I posted a thread, most of the guys that have previous thread have tons of mods, but mine is bone stock! It's just weird my engine has such little miles and has no cam or valvetrain mods...
Thanks in advance!
BTW, How do you change the valve stems or is that what they're called?
So should I assume its a bent valve? It's a 100% bonestock engine all it has is a custom exhaust from stock mani's back and a intake, 21K miles and its a 01' engine. Thats why I posted a thread, most of the guys that have previous thread have tons of mods, but mine is bone stock! It's just weird my engine has such little miles and has no cam or valvetrain mods...
Thanks in advance!
BTW, How do you change the valve stems or is that what they're called?
Thread Starter
On The Tree
iTrader: (20)
Joined: Feb 2006
Posts: 101
Likes: 0
From: Riverside, CA (So Cal)
Originally Posted by Stanger88
Its all them big ol' 28# injectors a snappin 
-Bent pushrod
-Bent valve
-Injectors
-LS1's are just noisy, get used to it!
A video is definetly going to help! I hope to have one tommorow!
Banned
Joined: Dec 2004
Posts: 2,636
Likes: 2
Use a rod and listen to different parts, that should help, get you a piece of REBAR or something. I am voting for LS1 is noisy/injectors. Do a compression check if you want, that would rule out the valve if they are all the same +-5-10%.
i doubt very seriously it's a bent valve,the push rods will bend first.ls1s are sorda noisy but the sound shouldn't be all that bad.if what you're hearing is really fast at idle it probably isn't a bent p-rod unless there are a few that are bent.
TECH Enthusiast
Joined: Dec 2003
Posts: 535
Likes: 0
From: Warner Robins, GA
The real skinny. Some lifter bores expand so much when the engine gets hot it allows a small amount of lifter bleed down thus causing the valve tap. All aluminum block LS series engines have this problem in various degrees. Comes with the territory.
Trending Topics
Thread Starter
On The Tree
iTrader: (20)
Joined: Feb 2006
Posts: 101
Likes: 0
From: Riverside, CA (So Cal)
AS Promised- Videos:
You have to put the volume up a bit and really concentrate on the video and try to cancel out the static that the cheapo digi cam puts out.
***ALSO***
I was driving it today at night and the oil temps kept going higher and higher until it was 235+ The sender is located by the oil filter (where everyone normally taps) and the exhaust system is pretty close to it, you think its just the heat of the exhaust system being absorbed by the sender making it get hot? Or do you guys have it there and have no problem? Remember its a LS1 RX7 so the pipes are somewhat close which could make a difference. THANKS!
You have to put the volume up a bit and really concentrate on the video and try to cancel out the static that the cheapo digi cam puts out.
***ALSO***
I was driving it today at night and the oil temps kept going higher and higher until it was 235+ The sender is located by the oil filter (where everyone normally taps) and the exhaust system is pretty close to it, you think its just the heat of the exhaust system being absorbed by the sender making it get hot? Or do you guys have it there and have no problem? Remember its a LS1 RX7 so the pipes are somewhat close which could make a difference. THANKS!
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo Banned
Joined: Dec 2004
Posts: 2,636
Likes: 2
LMAO, all I heard was a squeeky pully man I get a little noise out of my 302 and its quiet as hell internally, just the roller rockers tick a little bit, not much, you have to listen to hear it, but all the same, its not a rotary, things in that motor CHANGE DIRECTION! and when they do, there is a TINY!!!! amount of tolerance that is/has developed and its 100% normal to have a bit of noise. Nothing is perfect, if it was, you wouldnt get only 33% of the horsepower your motor makes to the flywheel. Sadly, thermodynamics and the like DO! exist.
I get a little noise out of my 302 and its quiet as hell internally, just the roller rockers tick a little bit, not much, you have to listen to hear it, but all the same, its not a rotary, things in that motor CHANGE DIRECTION! and when they do, there is a TINY!!!! amount of tolerance that is/has developed and its 100% normal to have a bit of noise. Nothing is perfect, if it was, you wouldnt get only 33% of the horsepower your motor makes to the flywheel. Sadly, thermodynamics and the like DO! exist. 
LOL, you've never heard a ticking ls1.... yours is fine, work on the tune.... the temps shouldnt be that high on a cruise though, possibly wrap the header near the temp sender, what was the coolant temps?
Thread Starter
On The Tree
iTrader: (20)
Joined: Feb 2006
Posts: 101
Likes: 0
From: Riverside, CA (So Cal)
Temps were in the 170-180 when I wasnt on it (Big aluminum radiator) and when i was on it it was 180-200ish, I didnt bother to look at it constantly, the ls1 sure is a fun motor though 