Diagnosing the dreaded ticking sound in an LS Engine... SOLVED!
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- เผยแพร่เมื่อ 6 ก.ย. 2024
- In this video, Nick takes a close look at his ls engine in his 1965 Impala SS, which he performed an ls swap for several years ago. He started to notice a ticking sound in the engine.
After some basic diagnostics, Nick determined the culprit was the trunnion bearing. Luckily, on this ls3 variant engine, it's an easy fix. It's also fairly straightforward on any ls engine.
Is your engine making a ticking noise? Let us know what it turned out to be!
#classicnation #65impala #lsengine
Would have been nice if you posted the ticking sounds
Exactly
The only way to not hear lifter tick on an Ls engine is to close the hood and not listen for it
I like the Brian Tooley v2 trunnion kit. While it’s still a needle bearing design, it is better with cartridge style race bearings. Ive heard a lot of stories with the bronze bushing type wearing or prematurely wearing out.
Agreed! I've heard that feedback on the BTR kit as well. Thanks!
I got michigan motorsports "bronze" bushings, i think they are causing valvetrain noise (sewing machine)
Those brass bushings are horrible. 1 set lasted me about 100 miles, the other lasted maybe 20 miles and 2 passes.. every single one of them were ovaled out severely. A couple were already eating into the rocker.
This video made me check my already upgraded rockers for a ticking noise…..popped the cover off…..sure enough, side 2 side play on 1 rocker……weird, low miles on them too.
Awesome job! My C5 likely has the same problem. Thanks for posting!
Certain trunions from a certain dealer are slightly undersised and wiggle on the stands. Better get maybe btr or che maybe.
Are the ChePrecision good?
@Alvaro Arana CHE are probably the best. Also, unlike some posts here, NOBODY uses brass in their bushings. They are bronze, which is far superior to brass......
I put a btr trunnion kit and stage 2 cam/springs in my 5.3 about a year ago and its been ticking really loud. I thought at first it sounded like lifters but idk after watching this it might be this. Id rather it be a rocker issue than a lifter because I really dont want to take the heads off. I put brand new lifters in too!
Def worth checking out. Let us know what you find out!
I checked the torque on all of the rocker arms and checked the rocker arms like you did in this vid looking for play but found none, spun the engine over and looked for anything out of the ordinary and I didn't see anything concerning to the eyeball in terms of rocker arms/pushrods. I put it back together and still making a noise so Im thinking its probably a lifter
@@pecanthejelly5854 keep us updated
Seat pressure / Spring rate too heavy for the upgraded trunnion bush set?
You most likely pushed that bushing in too far and it made it's own clearance. It's an easy mistake to make. After installing each bushing make sure that the lifter can easily spin or you'll run into this problem again.
Man, is that a 1965 impala SS? YES
ERNST BROS GARAGE!!! Hell ya lovin the fellow Spokanite!!! shouting out from Chesapeake va. Retire Military guy movin back soon, definite stopping in...
Good you got it fixed!
I hear people say dont do the upgrade couse the oem has better reliability. Though the needlebearings are not fun to get around inside the engine and couse havoc.
Great point!
Like your hat! Been having top end noise on my ls1. Appreciate the video.
Glad you found the problem and was an easy fix. 👍
Thanks 👍
My car just started doing this after a cam swap. 3k miles after the swap and just come out of nowhere. Hopefully this is the problem. Pulling the valve covers today.
Mine has done the same but it doesnt do it all the time. Maybe 2000 miles since Btr swap. Keep me posted once you've found out what it is.
@@swatman2294 I had a rocker bolt that broke off. Extracted the bolt and put in a new one. I probably stretched the bolt when I first did the cam swap.
What did the noise sound like
I recently got , not so much as a tick, but a squeal...i did a trunion upgrade
Had the same on my 396 rear lifter driver side.💯✊🏼
I hope you were able to correct it!
@@ClassicNation yeah I did.
Was the noise full time or did it come and go?
Shaft mount is the way
Just installed brand new lifters and still have the tick, didn’t notice any bad rockers but then again I didn’t pay that much attention to them
Might be worth double checking
Did your motor have to be in tdc to change that one rocker out?
Be cool if you actually let us hear the noise.
Why do they make them from brass? Why not stainless steel? Nice 67! I have a silver 66.
I've been fighting overhead noise for a while replaced lifters again and pushrods lengths and still have it my engine has 100 miles on rebuild and I did do trunions I'll have to check
Let me know what you find. I have tried everything to get rid of the ticking.
@@ericdolby1622 I found nothing wrong again ran engine with valve covers off and noise sounds it's coming from center of engine from intake to lifter and I know they are in perfect condition and measurements correct so at this point I'm going with half the internet that say a cammed ls makes noise
Could be cam/crank walk.
what oil pan and motor mounts did you used for the ls swap im getting ready to pull the plug thanks
Custom 3/4" raised height motor mounts and a Holley 302-1 oil pan. I hope that helps!
You did something wrong when you pressed that trunnion in but good job figuring it out
What trunnion kit did you go with originally?
Comp Cams Trunion Kit
It’s always that same side. Maybe there is a lot more force going to that area.
My 04 gto 5.7 ls1 alum block makes noise on that ssme side
Dodgy oil pump?
Part name
it would have been good to heart the noise
Agreed. Sorry about that. Once I discovered the noise, I tried to keep the running of the engine to a minimun so that I wasn't doing unnecessary damage.
Nice car
Thank you!!!
Those aren't sold on summit anymore because they suck. C.H.E. is the top dog for brass bushings. Second best is now shielded steel rollers. Those are bottom of the list.
Brass*
Correct.
Brass