hydraulic lifters. - Team Camaro Tech
Engine General Engine Discussion.

 
LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old May 5th, 04, 05:00 PM Thread Starter
Tech Team
Phil
 
Join Date: Dec 2003
Location: Eastern Canada
Posts: 99
Post

Good Day. A friend just fired up his fresh engine with a hydraulic camshaft. He was planning on re ajusting the lash after the cam has been broken in. Is it necessary to recheck this? I was to the opinion that when building the engine, you adjust the the rocker nut so there is no clearance between the lifter and push rod. A additional 1/2 - 3/4 turn of the rocker nut would put the lifter plunger in the middle of its travel. I can not see how running the engine would change anything. He tells me the oil will pump up the lifter. I thought the oil was a cushion and would self adjust to any wear that occures after time. If re adjusting is necessary, does G.M. do this to all their new cars or engines? Personally, I don't think so. Anyone care to clear this up?
Thanks in advance.
Phil
fyrefighter103 is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old May 5th, 04, 06:18 PM
Banned
 
Join Date: Dec 2003
Location: NORTH EAST
Posts: 938
Post

On our performance engines we build with hydraulic lifters we adjust them on the engine stand and never touch them till it comes in for a refresh.
CNC BLOCKS N/E is offline  
post #3 of 4 (permalink) Old May 6th, 04, 06:31 PM
 
Join Date: Jan 2004
Posts: 217
Post

I second that, Carl. If hyd. lifters are properly adjusted when the engine is assembled, and nothing stupid like a rocker nut failure happens, you should not have to touch them. There are lots of engines that don't even have an adjustable valvetrain.
Blue69 is offline  
 
post #4 of 4 (permalink) Old May 9th, 04, 01:04 PM
Team Member
John
 
JohnZ's Avatar
 
Join Date: Sep 2000
Location: Washington, Michigan USA
Posts: 7,728
Post

The Viper valvetrain is non-adjustable; when we build them, the roller rocker fulcrum stands just bolt down solid to the machined pedestals on the heads after we drop the pushrods in. We use Rhoads variable-duration roller lifters in every Viper engine, and the rockers are investment-cast stainless steel alloy.





[img]graemlins/beers.gif[/img]

JohnZ
CRG
JohnZ 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