Olds roller rocker qeustion - 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
  #1 (permalink)  
Old 10-16-2011, 01:15 PM
Registered User
Last photo:
Join Date: Oct 2011
Location: colorado
Posts: 1
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Olds roller rocker qeustion

hey guys, new here.
background info:
i have a 82 Buick century with the Olds 4.3 v6 diesel. i converted the rocker arms over to a set of Harland Sharp rollers. this diesel uses the stock roller cam, and Olds 307 style roller lifters.

the problem:
im not getting oil flow to the to the rockers. im using a set of oiling trick flow hardened push rods, and the fit both the lifter and the rocker cups great. the lifters are oiling ( i have the manifold and covers off right now) and oil is coming out of the top if the lifter. so everything below the push rods seems to be working right.

my question is can i drill a hole in the oil control plate in the lifter. (the one that controls oil flow to the push rod and rocker) to gain more flow? if i remove this plate the rocker oil fantastic. but i don't want to do all 12 of them and find out i have no oil pressure. i did start the motor and i had 60psi at idle (750) using a mechanical gauge, 80 psi when revved to 2500 (red line is 3700).

has anyone had problems like this before on a motor?

here is a few pictures:

specs are:
.020 over bore
total seal rings
arp rod bolts (BB Chrysler)
Full balance job (rods, pistons, crank)


Last edited by lorddurock@gmail.com; 10-16-2011 at 01:22 PM.
Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 10-16-2011, 03:15 PM
Registered User
Last photo:
Join Date: Jul 2004
Location: At Speed
Age: 54
Posts: 2,012
Wiki Edits: 0

Thanks: 44
Thanked 208 Times in 184 Posts
Oil can only flow up the pushrod when the hole in the rocker and the hole in the pushrod are lined up.
Maybe the pushrods are too long?
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 10-17-2011, 08:00 AM
Registered User
Last wiki edit: Wheelbase database Last photo:
Join Date: Jan 2007
Location: Virginia
Posts: 4,724
Wiki Edits: 1

Thanks: 23
Thanked 413 Times in 369 Posts
Sorry, I don't have anything useful to add to your post, but all I can say is WOW! This is very cool in a perverse sort of way. Talk about dare to be different - and you're using a manual trans! I've been a Olds guy for decades and this is only the third V6 diesel that I've ever seen. What are you putting it into?
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
38 olds inner rocker ? 38 old coupe Body - Exterior 1 01-13-2009 06:02 AM
Roller Rocker vs. Roller Tip Rocker Ozz1967 Engine 15 01-08-2008 04:53 AM
roller rocker 1.5 to 1.6 tomthecomic Engine 6 12-23-2007 04:33 PM
Roller rocker (?'s) on 5.7 scheetz93 Engine 15 04-24-2005 07:20 PM
Roller Rocker ? onehotchev Engine 5 11-14-2003 11:50 PM

All times are GMT -6. The time now is 09:32 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.