Valve Train Noise - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

zz430camaro · 05-23-2018, 04:23 PM

After my cam install I am noticing increased noise from the valvtrain I think. I can hear it slightly when I am just cruising down the road and some at idle. Is this normal? Its driving me nuts, Its not real bad but it is still there. I did all pushrod measurements so the preload is correct, its about .075 or one turn. Is there anything that works to quiet it like rocker bushings?

go_go_gadget88 · 05-23-2018, 04:30 PM

I can hear a slight valve-ish noise when cruising certain RPMs, but it wasn't related to my cam swap. It was after I installed headers. At first thought it was a leak, then I realized I am literally just hearing the valves opening and closing through the exhaust tubing. Maybe that's what some of the noise is at least?

Does the noise seem to be coming from the valve cover area? Is it more prominent from under the car?

zz430camaro · 05-23-2018, 04:32 PM

Quote:

Originally Posted by go_go_gadget88

I can hear a slight valve-ish noise when cruising certain RPMs, but it wasn't related to my cam swap. It was after I installed headers. At first thought it was a leak, then I realized I am literally just hearing the valves opening and closing through the exhaust tubing. Maybe that's what some of the noise is at least?

Does the noise seem to be coming from the valve cover area? Is it more prominent from under the car?

seems to be more from under car but its hard to tell just cruising down the road.

frankwjr · 05-23-2018, 07:48 PM

bronze rocker bushings quieted my valve train down quite a bit....

peace

Bo White · 05-23-2018, 07:59 PM

The LS sewing machine sound. your ok.

Dbunch9 · 05-23-2018, 09:02 PM

Thought I had bad valve train noise after doing heads cam lifters and trunnions even though the noise came from under the car. Turns out we didn't put my headers back together well and they were vibrating. Readjusted the coupler holding the collector to the x pipe and mounted the pipes closer together and now it sounds stock

theragtopguy · 05-23-2018, 11:16 PM

I noticed today while I was waiting in line that my LS-3 has a slight valve tap at idle. Not too loud to worry, I have had many many smallblocks in my younger years that tapped.

I'll keep monitoring it though.

Avenging Orange · 05-24-2018, 07:59 AM

Quote:

Originally Posted by Bo White

The LS sewing machine sound. your ok.

'Zactly.

zz430camaro · 05-24-2018, 11:41 AM

Quote:

Originally Posted by Avenging Orange

'Zactly.

I just wanted to know if anyone tried to minimize it and what did or did not work.

Bo White · 05-24-2018, 01:14 PM

You got a full turn preload so you have the right pushrod lengh. Thats about it dude. Some inluding myself run 7-7.5qts of oil instead of the usual 8. It seems to help.

xc_SS/RS · 05-24-2018, 01:39 PM

Quote:

Originally Posted by Bo White

You got a full turn preload so you have the right pushrod lengh. Thats about it dude. Some inluding myself run 7-7.5qts of oil instead of the usual 8. It seems to help.

this is why i run 7 - 7.5 quarts. i saw you mention it and i tried it to quiet some lifters and it worked. i think my engine is quieter now than it was when i got it lol

i'd give it a shot next oil change if it really bothers you

zz430camaro · 05-24-2018, 02:25 PM

Quote:

Originally Posted by xc_SS/RS

this is why i run 7 - 7.5 quarts. i saw you mention it and i tried it to quiet some lifters and it worked. i think my engine is quieter now than it was when i got it lol

i'd give it a shot next oil change if it really bothers you

I'm good with it, its just a little noisier than stock (it made noise then also).

StingrayblueSS · 05-25-2018, 12:34 AM

Quote:

Originally Posted by Bo White

You got a full turn preload so you have the right pushrod lengh. Thats about it dude. Some inluding myself run 7-7.5qts of oil instead of the usual 8. It seems to help.

That's the opposite of what I would think. I had thought about going a half qt. Over. Learn sitting every day here.

Bo White · 05-25-2018, 01:01 AM

Granted Im not 100% sold on why but....
theory behind it is the oil level with 8qts puts it close enough to the crank that it airates the oil and it accumilates in the lifters and causes them to tick.

05-23-2018, 04:23 PM	#1
zz430camaro Drives: 2015 1LE Join Date: Oct 2015 Location: Cleveland, OH Posts: 1,485	Valve Train Noise After my cam install I am noticing increased noise from the valvtrain I think. I can hear it slightly when I am just cruising down the road and some at idle. Is this normal? Its driving me nuts, Its not real bad but it is still there. I did all pushrod measurements so the preload is correct, its about .075 or one turn. Is there anything that works to quiet it like rocker bushings?

05-23-2018, 04:30 PM	#2
go_go_gadget88 Drives: 2010 Camaro 2SS/RS ABM 6M Join Date: Jul 2017 Location: Kansas Posts: 617	I can hear a slight valve-ish noise when cruising certain RPMs, but it wasn't related to my cam swap. It was after I installed headers. At first thought it was a leak, then I realized I am literally just hearing the valves opening and closing through the exhaust tubing. Maybe that's what some of the noise is at least? Does the noise seem to be coming from the valve cover area? Is it more prominent from under the car? __________________ 2010 ABM 2SS/RS LS3 6 Speed -- Rotofab CAI \| Speed Engineering 1 7/8" Longtubes w/ cat Delete \| Magnaflow competition catback \| TSP 231/246 cam\| TSP/PAC .660" Spring Kit \| TSP CNC Ported Heads \| Bo White PTB \| GPI Ported/RM Intake \| 3.91's \| BC Catch Can \| MGW Shifter \| BMR 1" Drop Springs \| BMR Trailing arms/Toe Rods/Rear UCA Bushings \| Pegasus Subframe Mounts

05-23-2018, 07:48 PM	#4
frankwjr Drives: 2010 SS 2SS M6 Join Date: Aug 2016 Location: Smithsburg, Md. Posts: 2,445	bronze rocker bushings quieted my valve train down quite a bit.... peace __________________ 2010 SS 2SS M6 - Tune by RDP dynoSteve!(Woot) - Daily Driver - *150K!* - All work by me...

05-23-2018, 07:59 PM	#5
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,019	The LS sewing machine sound. your ok. __________________ Retired wanna be cylinder head porter 2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X

05-23-2018, 11:16 PM	#7
theragtopguy Lifetime Philly Fan Drives: 2015 Spring Edition 2SS M-6 Join Date: Mar 2012 Location: South Central Florida Posts: 1,862 View My Garage	I noticed today while I was waiting in line that my LS-3 has a slight valve tap at idle. Not too loud to worry, I have had many many smallblocks in my younger years that tapped. I'll keep monitoring it though. __________________ 2015 Green Flash, Delivered 4/10/15 CAI, NPP Exhaust, Short-throw shifter BBK LT HEADERS 1 7/8” Tune by DynoSteve via SCTx4 Tuner One of 82 GF Ragtops built in '15 out of 811 Total [/SIZE]

05-23-2018, 09:02 PM	#6
Dbunch9 Drives: 2010 Camaro 2SS Join Date: Aug 2016 Location: Orlando, FL Posts: 294	Thought I had bad valve train noise after doing heads cam lifters and trunnions even though the noise came from under the car. Turns out we didn't put my headers back together well and they were vibrating. Readjusted the coupler holding the collector to the x pipe and mounted the pipes closer together and now it sounds stock

05-24-2018, 01:14 PM	#10
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,019	You got a full turn preload so you have the right pushrod lengh. Thats about it dude. Some inluding myself run 7-7.5qts of oil instead of the usual 8. It seems to help. __________________ Retired wanna be cylinder head porter 2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X

05-25-2018, 01:01 AM	#14
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,019	Granted Im not 100% sold on why but.... theory behind it is the oil level with 8qts puts it close enough to the crank that it airates the oil and it accumilates in the lifters and causes them to tick. __________________ Retired wanna be cylinder head porter 2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X