Andrew's Defender 90 3.2i Project

[Andrew325is]

I used to work for land rover. A guy I worked with had a disco 1 that he swapped a Cummins turbo diesel into. Iirc, he used a p38 steering box, like you said. He did a lot of fab work in the swap (obviously), and he may have made a spacer to move it farther out of the way.

That's very cool, except a 1,000+ lb engine in a Rover would not be ideal in my opinion. I'm going to keep the original Defender steering box since I'll be using the electric PS pump. :)

[Andy.B]

I used to work for land rover. A guy I worked with had a disco 1 that he swapped a Cummins turbo diesel into. Iirc, he used a p38 steering box, like you said. He did a lot of fab work in the swap (obviously), and he may have made a spacer to move it farther out of the way.

[Andrew325is]

I tried looking for a Mercedes electrical troubleshooting manual online to find out how to wire the PS pump, but I couldn't find any for the A-Class. From a MB forum I found a link to this page: http://www.aclassinfo.co.uk/mypage.49.htm and towards the bottom there's info on the wiring. It's clever how MB set it up. Red is power and brown is ground of course, but the blue wire connects to the alternator (charge indicator wire) so the pump knows only to run when the engine is running.

[Andrew325is]

My Mercedes A-Class electric power steering pump arrived from the UK today. They shipped it just 2 days ago!

[einhander]

Upset? No way! I like this more than most of the E30s up in here.

[Andrew325is]

I installed some new carpet in the truck today. It's commercial with a foam backing. The square yard pieces are typically about $25 each, but I got some for free. :) It was convenient that the load bay is exactly 1 yard wide so I only had to cut a small piece to fill in back there. (The images are slightly out of focus because I was trying out a Minolta AF 50mm f/1.7 portrait lens.)

[Andrew325is]

Okay, so I've actually found some published data for the Range Rover Classic, which would have the same system as the Defender at http://workshop-manuals.com/landrove...tion/steering/. It's power steering pump operates at 70-77 bar, or 1000-1100 psi, at 1000 rev/min. The Mercedes A Class pump with part # A1684660401 operates at 73 bar, or about 1050 psi, according to the label on one I found. That's spot on! I've crossed referenced the Mercedes pump part #'s and they are interchangeable so they must all be pretty much the same.

[Andrew325is]

No clue here; it's been a while.

Check and compared output pressure specifics? It will be interesting to see how close the spec is to the land rover

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Okay, that's a good idea. Hopefully I can find that info.

[Wanganstyle]

Okay, awesome. I'm looking at some A Class power steering pumps on eBay and I noticed there's different part numbers like A1684660401, A1684660501, and A1684660601. Do you know if it matters which one I get?

No clue here; it's been a while.

Check and compared output pressure specifics? It will be interesting to see how close the spec is to the land rover

Sent from my SAMSUNG-SGH-I337 using Tapatalk

[E30_Pare]

You've caught my attention! Always loved D90s and my only real off road experience is in a D90.

2004 Turbo Diesel. Sweeeet ride and so easy to drive. One day I will own my very own. Sub'd

[Andrew325is]

Racers use these and similar ;)

For water pump if the mechanical belt unit cannot be ran a e92 n55/54 electric water pump can be fitted.

Okay, awesome. I'm looking at some A Class power steering pumps on eBay and I noticed there's different part numbers like A1684660401, A1684660501, and A1684660601. Do you know if it matters which one I get?

[Andrew325is]

Okay, thanks Austin!

[e30austin]

Be careful with electric power steering pumps. They're a common issue on Minis, burning up and stuff.

Awesome project, man! Glad to see you around again. I used to see you driving down 257th occasionally when I still went to Mt. Hood.

[Wanganstyle]

Hey good to know! Thanks! :)

Racers use these and similar ;)

For water pump if the mechanical belt unit cannot be ran a e92 n55/54 electric water pump can be fitted.

[Andrew325is]

If you can't fit a mechanical ps pump a Mercedes A class electrical ps pump can be fitted.

Sent from my SAMSUNG-SGH-I337 using Tapatalk

Hey good to know! Thanks! :)