Engine Mechanical Topics Discussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.

Adjustable PRs or oem?

Thread Tools
 
Search this Thread
 
Old Nov 16, 2020 | 12:10 PM
  #1  
Weeboy1's Avatar
Weeboy1
Thread Starter
|
Stellar HDF Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Mar 2015
Posts: 2,937
Likes: 993
From: Winnipeg
Default Adjustable PRs or oem?

10 ultra. Planning to do bolt in cams in the spring. Andrews 48,woods 222 or S&Smr103 ??
anyway plan to open rockers to do lockouts, breathers and fix a minor oil seep issue.
that being said is it still advisable to add the expense of adjustable push rods and new tubes or should I just reuse my oems?
 
Reply
Old Nov 16, 2020 | 12:47 PM
  #2  
Architect's Avatar
Architect
Seasoned HDF Member
15 Year Member
Joined: Apr 2010
Posts: 9,493
Likes: 7,785
From: Long Island, New York
Default

Once you take the rocker covers off for other items, you might as well remove the rockers and reuse the stock push rods. Only advantage to adjustable is to avoid opening top of motor, but since you are going there save the money. Your time is free, good luck with the upgrade.
 
Reply
Old Nov 16, 2020 | 12:56 PM
  #3  
Weeboy1's Avatar
Weeboy1
Thread Starter
|
Stellar HDF Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Mar 2015
Posts: 2,937
Likes: 993
From: Winnipeg
Default

Thanks for the reply . So no need for further adjustment after the fact based on cam selection?
 
Reply
Old Nov 16, 2020 | 04:37 PM
  #4  
eighteight's Avatar
eighteight
Seasoned HDF Member
Joined: Oct 2019
Posts: 10,658
Likes: 7,247
From: OH
Default

Originally Posted by Weeboy1
Thanks for the reply . So no need for further adjustment after the fact based on cam selection?

any cam cam with a base circle close to stock will work with oem pushrods
hyd lifters have some latitude / forgiveness
 
Reply
Old Nov 16, 2020 | 05:29 PM
  #5  
todd-67's Avatar
todd-67
Ultimate HDF Member
Joined: Jun 2009
Posts: 6,899
Likes: 3,412
From: OH
Default

I agree if the cam you select is on the same base circle diameter as the stock cam and you're going in the top anyway just save some coin and reuse the stock rods.

The advantage with the adjustables allow you to set the lifter preload within the desired range (some vary the preload to assist with valve rain noise) and allow future cam chest work without pulling the boxes.
 
Reply
Old Nov 20, 2020 | 09:43 PM
  #6  
koolbreez's Avatar
koolbreez
Tourer
10 Year Member
Liked
Loved
Joined: Jan 2013
Posts: 277
Likes: 31
From: texas
Default

believe the base circle diameter on the Woods cams are different , call and talk to Bob Woods.
 
Reply
Old Nov 21, 2020 | 06:37 AM
  #7  
prodrag1320's Avatar
prodrag1320
Banned
Joined: Sep 2009
Posts: 3,569
Likes: 624
From: deland,florida
Default

the biggest advantages to adjustables is not just not having to take the rocker boxes off in the future,it is they allow you to properly set lifters.i would defanatly go with adjustables
 
Reply
Old Nov 21, 2020 | 08:53 AM
  #8  
bustert's Avatar
bustert
Seasoned HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Aug 2008
Posts: 5,048
Likes: 990
Default

if you are going to adjustable p/r, then you need to install collapsible p/r tubes, i use colony units on mine. this is the only way to accurately set them. also makes it easier to remove without any top side work.
 
Reply
Old Nov 21, 2020 | 09:01 AM
  #9  
Dan89FLSTC's Avatar
Dan89FLSTC
Seasoned HDF Member
Veteran: Navy
Active Streak: 30 Days
Top Answer: 3
Top Answer: 5
Joined: May 2008
Posts: 21,023
Likes: 12,543
From: South Carolina
Default

Originally Posted by bustert
if you are going to adjustable p/r, then you need to install collapsible p/r tubes, i use colony units on mine. this is the only way to accurately set them. also makes it easier to remove without any top side work.
Big twins all have collapsible pushrod tubes.
 
Reply
Old Nov 21, 2020 | 09:09 AM
  #10  
bustert's Avatar
bustert
Seasoned HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Aug 2008
Posts: 5,048
Likes: 990
Default

+1
will have to check on the soft tail in my storage building, but i believe it not to have them,
 
Reply



All times are GMT -5. The time now is 12:07 PM.