Valvetrain noise - Team Camaro Tech
Engine General Engine Discussion.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 16 (permalink) Old Aug 11th, 09, 07:02 AM Thread Starter
Tech Team
Patric
 
Join Date: Sep 2007
Location: Montreal
Posts: 75
Valvetrain noise

Hi i will try to make the story short, i replace cylinder heads, cam and lifters, pushrods, rockers and distributor.

I am having an issue with a noise try to change timing (ping) problem isn't there. I have reajust the lifters (hydraulic) cold way (no mess) and hot enine running ( i have read the article in the forum). I had to tight a lot 2 turn more and noise was gone. Next morning car didn'T start because of valve staying open, back up nut 1/4 turn and check compression in all cylinder 150 psi but noise is back. Is it possible that the lifters are defective ( not sealing properly) Is there a way to check them in the car or i have to take everything apart.


thank you fo your help
patvac is offline  
Sponsored Links
Advertisement
 
post #2 of 16 (permalink) Old Aug 11th, 09, 08:21 AM
DHH
Gold Lifetime Member
Don
 
DHH's Avatar
 
Join Date: Apr 2006
Location: Midlothian Illinois
Posts: 522
Re: Valvetrain noise

When you changed the heads did you check your pushrod length? If everything else was done correctly I would guess that they are too short. Check with the company that makes the heads for their recommendation on pushrod length.

Some videos I'v made for youtube

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
DHH is offline  
post #3 of 16 (permalink) Old Aug 11th, 09, 10:41 AM Thread Starter
Tech Team
Patric
 
Join Date: Sep 2007
Location: Montreal
Posts: 75
Re: Valvetrain noise

Hi, yes the push rod had to be .100 longer and i have confirm with a push rod lenght tool.
patvac is offline  
 
post #4 of 16 (permalink) Old Aug 11th, 09, 01:47 PM Thread Starter
Tech Team
Patric
 
Join Date: Sep 2007
Location: Montreal
Posts: 75
Re: Valvetrain noise

Here is a link to listen to the sound what do you think?????
http://s114.photobucket.com/albums/n...MOV03853-1.flv
patvac is offline  
post #5 of 16 (permalink) Old Aug 11th, 09, 01:53 PM
Gold Lifetime Member
"Tri-Tip"
 
Gary L's Avatar
 
Join Date: Aug 2002
Location: Clovis , CA, USA
Posts: 10,079
Re: Valvetrain noise

The noise doesn't seem to change with RPM, if I am hearing what you are hearing.

"Government is not reason; it is not eloquent; it is force. Like fire, it is a dangerous servant and a fearful master." ..... George Washington

Gary,TC Member with a Lemans Blue/Ivory 02D X33, DZ, M20, MS, flat hood. Only the BU code rear end is original.
Gary L is offline  
post #6 of 16 (permalink) Old Aug 11th, 09, 02:51 PM Thread Starter
Tech Team
Patric
 
Join Date: Sep 2007
Location: Montreal
Posts: 75
Re: Valvetrain noise

Try this one then
http://s114.photobucket.com/albums/n...itdemoteur.flv
patvac is offline  
post #7 of 16 (permalink) Old Aug 11th, 09, 03:49 PM
DHH
Gold Lifetime Member
Don
 
DHH's Avatar
 
Join Date: Apr 2006
Location: Midlothian Illinois
Posts: 522
Re: Valvetrain noise

I could be in left field but that sounds more like something rotating and self clearancing on something else (like on a lathe) than valvetrain to me. Maybe take a look at all your pulleys/timing pointer etc.

Some videos I'v made for youtube

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
DHH is offline  
post #8 of 16 (permalink) Old Aug 13th, 09, 10:15 AM Thread Starter
Tech Team
Patric
 
Join Date: Sep 2007
Location: Montreal
Posts: 75
Re: Valvetrain noise

hi, i have check the pulley and timing marker everything is clear.
Any other hints or possibility.
thank you

2 links are available to listen hot or cold noise is there
patvac is offline  
post #9 of 16 (permalink) Old Aug 13th, 09, 01:32 PM
Senior Tech
MARK
 
Join Date: Apr 2000
Location: Butler, North NJ
Posts: 952
Garage
Send a message via AIM to PROZ11
Re: Valvetrain noise

Maybe a rocker is hitting the a valve cover somewhere? Could always check them for any damage. If no damage is seen you could always start the car a run it for few seconds while the covers are off. It would be easier to pinpoint the noise if its from the valvetrain.

.

Pro Street Z11 clone

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


YOUTUBE VIDEO:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



.
PROZ11 is offline  
post #10 of 16 (permalink) Old Aug 13th, 09, 02:01 PM
Senior Tech
Ron
 
Join Date: Nov 2006
Location: North Channel Lake Huron
Posts: 3,934
Re: Valvetrain noise

Exhaust Gasket leak sounds like a Tappet noise, Fuel Pump Arm or rod too short. Ensure that Bolt on the Front of the Block Psgr Side isn't too long and interfering with the Fuel Pump Rod. Cracked Flex Plate if running an Automatic.

Z15CAM - There was a Viper in my Rear View
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

This was my 70 1/2 Z28

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Z15CAM is offline  
post #11 of 16 (permalink) Old Aug 13th, 09, 06:51 PM
Gold Lifetime Member
Dave
 
Join Date: Jun 2006
Location: Vacaville CA
Posts: 1,362
Re: Valvetrain noise

Loose dust shield hitting the back of the flywheel/flexplate?

Dave

Known to run with scissors....
__________
1969 Camaro Z/28 "clone", GMPP ZZ383, Autogear M22W, Moser 12bolt w/TruTrac 3:73.
Fred Mertz is offline  
post #12 of 16 (permalink) Old Aug 13th, 09, 07:20 PM
Gold Lifetime Member
Scott
 
scblucam's Avatar
 
Join Date: May 2005
Location: Houston, TX
Posts: 2,443
Garage
Re: Valvetrain noise

I have to agree it sounds more rotational than reciprocal.
scblucam is offline  
post #13 of 16 (permalink) Old Aug 14th, 09, 09:04 AM
Gold Lifetime Member
Tom
 
Join Date: Mar 2008
Location: the 02176
Posts: 5,985
Re: Valvetrain noise

Quote:
Originally Posted by DHH View Post
I could be in left field but that sounds more like something rotating and self clearancing on something else (like on a lathe) than valvetrain to me. Maybe take a look at all your pulleys/timing pointer etc.
I agree. It's small and spinning. Check inside the disti, maybe?

'67 rs - ordered new by my Grandfather
327 L30, K-K, Deluxe int, tach & gauges, 12 bolt posi, 4 speed.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
-
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Melrose RS is offline  
post #14 of 16 (permalink) Old Aug 14th, 09, 10:27 AM
Senior Tech
 
Join Date: Dec 2003
Location: Wyoming
Posts: 1,635
Re: Valvetrain noise

Can you pull the valve covers and check for the noise with the engine running with a hose or stethoscope? If you do find the noise is actually coming from the valve train you need to isolate which valve rocker it is coming from and check the lifter. From your "mess" description it sounds like you are getting oil to all of the rockers. Did you verify clearance between the valve and piston when you installed the new heads?
deerhunter is offline  
post #15 of 16 (permalink) Old Aug 15th, 09, 09:48 AM Thread Starter
Tech Team
Patric
 
Join Date: Sep 2007
Location: Montreal
Posts: 75
Re: Valvetrain noise

Hi ,i have found a defective roller rocker, but my noise is not there,i have install all my regular rocker and noise is still there. I have put back the old distributor same thing. The car his automatic but there are no cover on it. I have thight the headers and exhaust flange. The clearance where check before heads where on and to select proper cam. I am going to look at at the fuel pump rod and at the flex plate today.

thank you
patvac is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome