Dolly Parton Engine bay…

This is the engine room for dolly Parton… my Land rover series III 109, bit messy :)
Dolly Parton Engine bay...


Replacing Wheel Brake Master cylinder

When you know something is not right and it only for temporary solution, we all want to make it right and solve it… The braking system for Dolly has been OK after using Toyota seals as you can read it here : but in the back of my mind… I always think what if it suddenly fail…

So finally I bought new set of Girling Wheel master cylinder… I got the genuine part cost around US$ 35 each… expensive I know but it is actually hard to get, when some one offer me the original part, I quickly take that offer. Here is the new Girling Brake wheel master cylinder….. Funny thing is, although it says Girling in the item… the packaging is Unipart… I guess Unipart is making the item for Girling or Vice versa… or someone messed up with the packaging..

It says Girling… not sure about the number means
View from Top

Because this is an NOS (new but OLD STOCK), I have to dismantle it first, make sure that nothing seized and rusted inside… after everything satisfactory. Installing is quite straight forward so no need to post picture here, you need to take off the tire and drum… and then bleed the system, you are good to go…

The brake is now good, worries are gone…  That’s it for now… Happy landying.. :)

Which spring and needle ? – SU HS6 For Landrover series

For those who have not read my set up of SU HS6 carburetor for land rover series 3 you can read it Part 1 here and Part Two here:

As you may aware, I bought the carburetor SU HS6 as a complete unit, it comes with BAK needle and green spring, and that what I use for the initial set up… It works but may be not optimal… from the forum and discussion, they are few suggestion:

  1. Copy ACR set up with BGB needle and Black spring
  2. BDM needle with red spring
  3. BDB or BBW but not sure what spring they use..

Just to remind you on the profile of the needle, you can see below  that BGB is very rich needle, BBW second, BAK third, BDM fourth and BDB is the leanest…

needle su

Actually I want to copy ACR set up, however after having discussion with Burlen… there is no such thing as black spring for HS6, I think they do not want to be copied, and may be they change the color of the spring to hide the their set up…

Finally I ordered BDM and BDB needle and  red spring, hence I have three needles and 3 springs (one spring is from old SU)… it will be interesting the try all possible combination.. :).

Here some photos when I am tried needle and spring combination

Three springs SU HS6
Three springs SU HS6 : the Green, the red and the unknown.. (from right to left)


Needle BDM and BDB fro burlen


Off the Dashpot, and we can easily change the spring and needle
Replace The spring with the another spring we want
Off the old needle and the new needle is ready to be installed
The needle center lead… its funny because actually the needle is slightly not centered even using this centering aid..

To make it apple to apple, first I have to make sure that the ignition timing is at 6 deg BTDC as suggested by ACR using their Cyl head.

So.. after the few tries… I finally concluded that the setup is best using green spring and BDB needle... The others also works but at high throttle it missed fire or blow back… or severely lost power compare to this one.  it is quite strange… ACR set up is using the richest needle, I am using the same head from ACR but it best using the Leanest of the option…

Bit confuse, but I find it very smooth and have more power using this set up, it capable of going uphill at 3rd gear,  previously it need the second gear to climb it… So thats it for now, any questions please write it down below.. hope it can be useful for you


Cheers for now..


Other set up is OK, but in the open throttle, I experienced a missed fire… even if I tried my best to adjust the

Adjusting fuel mixture using Gunson Colortune

The good things about having land Rover Series is you will learn lots of things about basic engine… and purchasing tools or accessories will give us same effect as women buying shoes…

Today I receive Gunson colortune, this  is a tool to help us adjusting or setting  fuel-air mixture from the carburetor, here is the picture…

This is the product… for land rover series you should order the 14mm thread

take one of you sparkplug… and check it see if it is too dark or too brown…

The spark plug seems quite healthy, I wonder whether this Gunson will give me better setting... lest see..
The spark plug seems quite healthy, I wonder whether this Gunson will give me better setting… lest see..

And this is how its set up…

replace the sparkpulg with supplied glass sparkplug... screw in the extension and connect the extention to cable lead.. you good to go..
replace the Sparkplug with supplied glass sparkplug… screw in the extension and connect the extention to cable lead.. you are good to go..

The result is slightly rich mixture, few adjustment needed and the landy is happy


New ACR 9:1 compression head for Dolly

It has been a long time since I post update on Dolly, the white Land rover series III long Station wagon… Not that I am giving up on her, on the contrary I planned an expensive upgrade for her … its a new  ACR head 9:1 compression head.

I have been planning this kind of upgrade since quite  along time…  been reading all discussion about this kind of upgrade, I was torn between ACR or Tuner engineering head. Lots of thinking and discussion in the forum, I finally decided to choose ACR, simply because it cost less, not necessary it’s better… for those who wants to understand deeper, should go and read to this page.

Cut the story short, I ordered one and when it arrived I feel like Xmast comes early..:)

Here is the box… around 20kgs
This is the new shiny ACR 9:1 head, it comes with the set of gasket


Inside of the head…
The Old head is off and cleaned…
There is a sign of blown gaskets in the old head
The New head is going in…
Installed and oil added…
Here is the notes on how to properly install and adjustment needed

With this new head + SU HS6 carburetor I notice Dolly now is much pleasant to ride compare to the stock head…. next plan is to replace the manifold with more free flowing pipe… any question on the set up please let me know..