Disco II Roller Rocker Project. - Land Rover Forums - Land Rover Enthusiast Forum
 


Modifications Done some work to your Land Rover to make it better on road or off? Talk about it here!

Reply
 
 
 
Thread Tools Search this Thread
  #1  
Old 12-19-2016, 12:15 AM
Junior Member
Thread Starter
 
Join Date: Feb 2013
Location: Hoover, AL
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Thumbs up Disco II Roller Rocker Project.

I thought I would share a bit about my 2003 D2. I overhauled the engine about 30k ago due to slipped sleeve. New top hat sleeves from Turner Engineering in England, bearings, heads overhauled, all assessories and sensors overhauled or replaced. The rockers have failed twice. Not really failed but one or more started ticking. Arrrrrrgggggg. I searched for roller rockers to upgrade the system but found no easy fix. Called Yella Terra but none available in the US. I suggested they contact Rovers North and Atlantic British as possible distrubutors. Called Harland Sharp and the reluctantly sold me a set but stressed they were not bolt on. That turned out to be very true. The Harland Sharp rockers are excellent but get ready for a bit of figment and research. Custom pushrods from Manton, 3/8" valve cover spacers water jet cut locally (Laser cutting services in Birmingham AL), I made aluminum rocker spacers on my lathe instead of using the stock springs, and replaced the lifters just for the heck of it. The valve cover spacers have a trickle down affect. The upper intake now has to be clearanced to clear the higher valve covers. More to come.








Good view of custom rocker spacers.





Valve cover spacers in place.



Manton push rods. A bit shorter and smaller ball on the rocker end.







You can see the valve cover spacers installed.

Reply With Quote
  #2  
Old 12-19-2016, 08:28 AM
Charlie_V's Avatar
Senior Member
 
Join Date: Nov 2012
Location: Longview, Texas
Posts: 3,528
Thanked 205 Times in 199 Posts
Default

Beautiful engine. Those rockers are art!
Reply With Quote
  #3  
Old 12-21-2016, 10:07 PM
XCELLER8's Avatar
Senior Member
 
Join Date: Oct 2008
Location: sackets harbor, ny
Posts: 1,442
Thanked 52 Times in 50 Posts
Default

looks great !.....what ratio rockers did you use ?
Reply With Quote
  #4  
Old 12-22-2016, 03:50 AM
loanrangie's Avatar
Senior Member
 
Join Date: Apr 2015
Location: Melbourne, Australia.
Posts: 277
Thanked 26 Times in 26 Posts
Default

Should be a nice strong motor.
Reply With Quote
  #5  
Old 12-22-2016, 07:39 AM
Junior Member
Thread Starter
 
Join Date: Feb 2013
Location: Hoover, AL
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Ratio is 1.6. I had to clearance the pushrod holes for the larger pushrods and the increased ratio.
Reply With Quote
  #6  
Old 12-23-2016, 08:38 AM
Junior Member
Thread Starter
 
Join Date: Feb 2013
Location: Hoover, AL
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Harland Sharp
Reply With Quote
  #7  
Old 12-24-2016, 12:10 AM
Junior Member
Thread Starter
 
Join Date: Feb 2013
Location: Hoover, AL
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Default

I finished up my roller rocker project tonight. All good. This was a fun project but took a lot of engineering on the fly. As a result of the valve cover spacers, the upper intake plenum had to be clearanced, the secondary air pipes had to have their mounting holes elongated, and I used six plenum gaskets stacked. The end results sounds great. It smoothed out as soon as the lifters filled with oil and he engine has never been quieter. I backed it out of the garage and topped the fluids but haven driven it yet. (By the way, I use Toyota red coolant) Will make a grocery run in the morning. This would have been much easier on the engine stand vs the engine bay. I am happy to answer any more detailed questions for the forum if needed. Best regards. Richard.
Reply With Quote
  #8  
Old 12-24-2016, 12:15 AM
Junior Member
Thread Starter
 
Join Date: Feb 2013
Location: Hoover, AL
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Default

If anyone on the forum needs valve cover spacers, Laser cutting services in Birmingham Alabama has the file under my name. Ask for Keith Waters. Laser Cutting Service, Inc. | Birmingham, Alabama - Contact Us
Reply With Quote
  #9  
Old 01-02-2017, 07:24 PM
Junior Member
Thread Starter
 
Join Date: Feb 2013
Location: Hoover, AL
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Quick update. The roller rocker project seems to be a success. I have a few hundred miles on the D2 since the upgrade and all is quiet. I would like to say that I can feel a performance increase but the gain is probably marginal. Quiet valve trane though. Hopefully will be more durable than the originals. Total project cost was under $1000 but that doesn't count a good bit of free labor. All good, Richard

Next project is adding a set of auxiliary driving lights using an OEM Land Rover wiring and switch kit and a set of LED lights attached to the factory soft bull bar.
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
LRO mag - Project V8 - 4.6 V8 repair and improve project acamato Discovery II 2 03-11-2016 12:07 PM
Trade my British sports car project for your British truck project? Corrigan Private For Sale/Trade Classifieds 0 04-26-2013 02:38 PM
Suggestions for a replacement window regulator roller or slider bcolins Discovery II 15 03-22-2012 05:47 PM
window track bushing/roller slave600 Discovery II 2 10-11-2008 08:51 PM
Support roller seems to be sticking... jwfuller Discovery II 2 09-29-2007 08:13 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are Off


Advertising
Featured Sponsors
Vendor Directory

All times are GMT -5. The time now is 10:38 PM.


LAND ROVER and its logo are the registered trademarks of Land Rover. Land Rover is not affiliated with LandRoverForums.com.