Hyd roller lifters in oil for 2 years - Page 2 - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
lost password?   |   register now

LinkBack Thread Tools
  #16 (permalink)  
Old 03-12-2013, 05:19 PM
Registered User
Join Date: Nov 2009
Location: Westerly,RI
Posts: 61
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I just ignore the valve opening on a pumped up lifters. Adjust by putting the lifter on the lobe heel and zero lash it -- give it the preload and that's it. It will self adjust with the engine running. Also I don't by into the-- just give it--1/4 or 1/2 turn thing. Find out what the manufacturers required preload range is for that particular lifter and see how many turns it takes to get to the preload you want in the range. It may be 1/4, 1/2, 5/8 or 3/4 or whatever. Rocker ratio and stud thread type/count will dictate. If you really want to experiment and know your stuff you can go .010 from the bottom or say .003 from the top. But that is another topic for experienced guys.

Reply With Quote Quick reply to this message
Sponsored Links
  #17 (permalink)  
Old 03-13-2013, 08:57 AM
Registered User
Join Date: Jun 2010
Location: TX
Posts: 2,493
Wiki Edits: 0

Thanks: 28
Thanked 271 Times in 251 Posts
I quit fiddling with lifter "pre-load" worries when using hydraulic lifter camshafts in 1973, after I started using Melling JB-951R limited travel hydraulic lifters in Pontiac/Olds engines. . Now I use Comp Cams short travel hydraulic roller lifters for Chevy engines.. I set them like solids on the heel of the cam lobes with a feeler gauge, .005" lash or without a feeler gauge in the pits using 1/8 turn, which is just a flick of the wrist.

They are legal to use in classes that require hydraulic camshafts with a minimum vacuum limit. That is why they are called "cheater lifters". You must cheat to win.
Reply With Quote Quick reply to this message
  #18 (permalink)  
Old 03-16-2013, 01:32 PM
Registered User
Join Date: Nov 2009
Location: Westerly,RI
Posts: 61
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
You can still get the lash right--the valve will open on the pre Load that's all. It will self adjust when it runs. Agreed that you should not fill them or pump them up in an oil bath. If and I mean if you are careful protect them- put them in a vise and push some of the oil out with a wood dowel. I did this after I cleaned mine in in mineral spirits. As a matter of fact new Hydraulic lifters have a coating of termalene grease on them and sometimes inside- thus the reason for the mineral spirits bath. Get the plunger to move with some light oil after cleaning them.
Reply With Quote Quick reply to this message
  #19 (permalink)  
Old 03-16-2013, 06:23 PM
Registered User
Join Date: Feb 2013
Posts: 91
Wiki Edits: 0

Thanks: 0
Thanked 12 Times in 12 Posts
That was my thought with the dial indicator test I mentioned previously, non intrusive in the sense of tearing into the engine other then popping the valve covers off and observing the leak down movement of each lifter when the cam is turned to bring the lifter up onto the lobe using the valve spring as the force. If you never saw any leak down with a lifter under that test, then you would know something was amiss inside a lifter. My guess is from your readjusting and it running fine is that they are ok but worry more about the rocker arms having been backed off for that period of experimental time in running that way and damaging the cam or lifter bottom surface.
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Hyd. Roller lifters on Solid roller cam danrace1 Engine 6 01-28-2010 05:21 PM
Hyd Roller Cam W/Solid Roller Lifters? RoyLeoGracie Engine 11 02-03-2009 10:15 AM
noisy hyd roller lifters 65Guera Engine 22 05-13-2008 03:17 PM
Hyd. Roller lifters problems hotrodf1 Engine 121 10-25-2007 01:31 PM
Hyd Roller lifters underdog305 Engine 7 10-13-2006 08:42 PM

All times are GMT -6. The time now is 12:43 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.