OM606 Revisited for Defender

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brycee22

Member
I like your progress Arcadeus. Curiously, I just found this thread while Googling something else as I am also installing a 606 into my 110 and it appears we're about similar progress. I'm hoping to get it fired up for the first time within the next couple weeks. Just need to complete some wiring and tubing.

We took similar approaches but I opted for the 7.5mm mechanical IP from deiselmeken. I also had Ashcroft build me an HD R380 Stumpy and HD rebuilt LT230 for good measure. Most everything else is sourced from K2 (love working with Dominic and Duncan...great guys) and also from DPUK (I don't care that for that Luke guy, but so far the parts supplied have seemed good quality).

When the borders open up we'll have to meet up somewhere and compare notes. I'm just down here in Seattle. Attached are some random photos of the build.
 

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Arcadeus

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Nice! Will have to check that out when we can. I have the same pump ( not sure if yours is EDC) and my transfercase is also from Ashcroft. What turbo are you using?

Btw here are some pics of the progress... It's almost rolling, just having an issue with the map sensor
 

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brycee22

Member
Very nice. Why the far reach with the air intake hose? I'm currently debating how I want to do mine. My 110 is a RHD and I have a snorkel on the opposite (passenger) side. I would still like to utilize a snorkel but I'd have to source one for the drivers side and I'm concerned that a snorkel might be too constricting. Currently I don't have a solution for tapping into the side vent, but I figure once everything is installed, I (and by "I", I mean my mechanic) can make something custom real quick.

As for a turbo, for now I'm just using the Hybrid V2 turbo sourced from DPUK. I wanted to be a bit conservative with the initial build, but use HD components if I wanted to upgrade later. I figure upgrading the turbo later would be easy.

Have you had any clearance issues so far? And where did you get that guard pan just under the muffler there? Are you keeping stock prop shafts?

I also decided last minute to convert from a 2.5td engine mount to a 300tdi mount which required a bit of fab work. Turned out good though. I also have the HD half shafts and drive flanges (Ashcroft) yet to be installed, but need to swap out the front diff gear to accommodate for the different spline count first.
 

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brycee22

Member
So I assume you just hacked the original radiator mount off? Just did a test placement last weekend thinking this just uses the original mounts, but when placed, the radiator is way too high....(pics below). Before we go hacking away, was this your approach as well?
 

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Arcadeus

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brycee22 said:
So I assume you just hacked the original radiator mount off? Just did a test placement last weekend thinking this just uses the original mounts, but when placed, the radiator is way too high....(pics below). Before we go hacking away, was this your approach as well?
Click to expand...
Yes the original mounts were replaced.. i think they moved it forward a bit too... do you have the AC grill mount?
 
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Arcadeus

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So she is up and running now. Turned out the transmission issue was a single option in how the TCU communicates over its CAN bus line. As soon as I switched it to PCL it worked fine. Also I have the ECU and TCU communicating on the same CANbus line now i.e. obdll link will work
 
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Arcadeus

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I do recommend however that you use an external fuel pump and blank the lift pump off on the IP.

So I am currently installing a dakota digital gauge system. I went for separate gauges instead of the one unit.

HDX-2070: Universal 7 Gauge Round, Analog HDX Instruments



The original panel wont fit all of them so I got these from raptor engineering and they custom designed the panel to fit the three larger gauges.

Standard-Binnacle.jpg



for the smaller cluster I also bought one of these....
1632183355852.png


Not sure if I like the look but if it bugs me enough i will eventually do something about it and it will be functional for now.
 
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Arcadeus

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The reason I went with the display center in the middle gauge is because I can program it to display my egt and boost. or alternatively, I could just get it to flash a warning once the readings hit a programmable threshold.
 
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brycee22

Member
Arcadeus said:
I do recommend however that you use an external fuel pump and blank the lift pump off on the IP.
Click to expand...

Why do you recommend using an external fuel pump? Also, how did you work out your air hoses for the turbo and inlet manifold? Got any pics to share? I'm currently trying to figure out how I want to go about it. I tried K2, but they sent me a bunch of stuff that didnt work too well.
 
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Arcadeus

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brycee22 said:
Why do you recommend using an external fuel pump? Also, how did you work out your air hoses for the turbo and inlet manifold? Got any pics to share? I'm currently trying to figure out how I want to go about it. I tried K2, but they sent me a bunch of stuff that didnt work too well.
Click to expand...
 

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Napalm00

Napalm00

Technical Excellence Contributor
Fyi a good buddy just got his om606 up and going. He has some pretty serious surging issues. Dpuk makes a kit to help , must go on the pump body fyi
 
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Arcadeus

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I’m not 100 percent sure that the snorkel isn’t going to starve it for air… I did the calculations and if I recall correctly it’s good up to 4500 rpm or so…
 
MountainD

MountainD

Technical Excellence Contributor
Arcadeus said:
I’m not 100 percent sure that the snorkel isn’t going to starve it for air…
Click to expand...
i had to read this 10 times to understand what you’re saying, and now I’m 100% uncertain that what you said isn’t entirely incorrect. 🤪
awesome build—can’t wait to hear it run!,
 
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Arcadeus

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MountainD said:
i had to read this 10 times to understand what you’re saying, and now I’m 100% uncertain that what you said isn’t entirely incorrect. 🤪
awesome build—can’t wait to hear it run!,
Click to expand...
And in English… I don’t know if the air intake is large enough to supply the air the turbo wants at higher rpm.
 
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