Advise on fitting a Nissan SD33 into a land Rover 90/110

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eddie.d

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Hello Can anybody help?

I see that a few people have converted there Land rovers to run a 6 Cylinder Nissan patrol SD33 Engine.



I am in considering this (FOR MY SINS:) ) as I have a Nissan patrol 160 which as usual has more rust that Steel, and wondered if there is any advise on this matter. I have a Landrover 110 that is complete except its engine and is a 'F' plate, where as the Nissan is a 'C'.
I have a couple of Questions though.:confused:

1. How do you get around the problem of the difference in voltage being that the Nissan is 24 Volt and the land rover is 12 Volt?:confused: is it a case of getting hold of a 12 volt starter, Alternator, and relay assembly or as I suspect a bit more involved.....

2. Is there any Company's out in the real world, or cyber world that anybody could recommend regarding adapter plates. Nissan SD33 6 cylinder onto a Lt77 box. Short splined shaft. Landy had a 300TDI in it at one time. or any other parts that may be needed.

Many thanks for all your help.

Eddie.
 
Hello Eddie.d,for a conversion adapter try Conversion & Precision on 01246 855520 or www.engineconversions.co.uk I`ve no experience of this particular conversion,but have read articles that didn`t sound too difficult.Best of luck Dave
 
Hi,

I bought a 90 with the SD33 engine fitted but the electrics were not complete.

I initially got a quote for rewiring the starter motor as a 12V one but it was very expensive and they wouldn't guarantee the work.

Somebody had fitted a 12V alternator to my SD33 - I’m not sure if this was the original landrover one or the one off the 12V version of the sd33 (Nissan apparently made a 12V version as well but I looked into swapping the starter motor for the one off the 12V version but I was told this wouldn't fit - you may wish to check this yourself).


This is what I did:

I found a great auto electrical shop (I have forgotten the name but will try to find the receipt this evening) who were able to supply a solenoid which apparently is fitted to a Mercedes truck which enables two 12V batteries to be wired in parallel (giving you 12V), when you turn the ignition to start the engine the solenoid puts the two batteries in series to supply 24V to the starter solenoid and starter motor, and then when you release the ignition from start position it puts the batteries back into parallel so they are both charged from the 12V alternator.

The 24V glow plugs had already been replaced for 12V ones by the previous owner.

I then replaced the 12V stop solenoid for a pull chord (using a bonnet release cable and home made bracket) which I took through the bulkhead and mounted onto the dash. I suppose you could use the original 12V stop solenoid if you can mount it but this was missing from my engine.

It took me a while to work out how to arrange the electrics and while I have found this a good solution I am a novice and advise that you check this out with an auto electrician in case there are issues that I have not thought about.

Hope this helps and let me know if you are interested in the name of the shop who supplied the solenoid to control the batteries.

Regards

Tom
 
Hi,
I am just now considering putting an SD 33 engine into my defender 110. I have no idea how easy/difficult/crazy this is to do.
Since you are planning to do the same, I would appreciate any feedback and info. I can get. My Nissan comes with an original 12V electrics.
Thanks. Zaini
 
Hi eddie d.

Why on earth would you place such an odd post in a forum section titled

"Website Feedback, Suggestions and help!"?

If it's that difficult to find the correct section in which to place your post, woe betide you trying to carry out an engine conversion. I'm amazed you passed a driving test with your iq.
 
TheVengefulElephant said:
Hi eddie d.

Why on earth would you place such an odd post in a forum section titled

"Website Feedback, Suggestions and help!"?

If it's that difficult to find the correct section in which to place your post, woe betide you trying to carry out an engine conversion. I'm amazed you passed a driving test with your iq.
Click to expand...
heffers his after help!
So he went to the help section!
Logic init!
 
TheVengefulElephant said:
If it's that difficult to find the correct section in which to place your post, woe betide you trying to carry out an engine conversion. I'm amazed you passed a driving test with your iq.
Click to expand...



That's rich coming from you Dumbo after your disgrace on the nomore disco thread.
 
I know this is an older posting but I have the same problem fitting a 24V SD33 to a 12V vehicle.

I need the 12V so after a lot of searching found a device called a "series parallel switch" which (apparently) keeps everything 12V with both batteries connected in parallel for charging and for loads. When you energize the solenoid the 12V loads keep working off battery 1. Battery 2 gets disconnected and reconnected in series to the starter and battery 1, this provides 24V for cranking only (1500 Amp Intermittent duty). Bad news it's about £130+drat

See:
NT-SP9844

I have an autoelectrician looking for a suitable 12V bolt in starter. If I can get one, I'll post the details. If anyone knows of a a fairly complete patrol wreck with a nice SD33, I'd be interested.
Cheers
 
This is an OLD post.

£130 - having a laugh.

What the £130 device is doing is what any high current relay will do if you wire is correctly.

You have your two batterys side by side, and you connect a double pole relay of appropriate current capacity between the batterys in the following order:

common - neg on battery one
normal position pin: (i.e. not energised) to neg on battery two so basically unless this relay is energised it has both the batterys in parallel - i.e. 12v.
energised position pin: live on battery two.

So when the relay is energised the circuit for the starter is as follows, live from battery 1 to neg on 2, and live on two goes to starter and neg on battery 1 will always be connected to chassis. However when the relay pulls it over to pin two, it disconnects the batterys negs and lets live in.

Very simple - COULD be done with a big current double pole switch as long as you remembered to turn it on and off for stater.

You can set a relay up on the lives slightly differently so that the lives are joined in the non energised state - so you can use both batterys.

I reckon the single relay setup could be done for £40.
 
eddie.d said:
Hello Can anybody help?

I see that a few people have converted there Land rovers to run a 6 Cylinder Nissan patrol SD33 Engine.



I am in considering this (FOR MY SINS:) ) as I have a Nissan patrol 160 which as usual has more rust that Steel, and wondered if there is any advise on this matter. I have a Landrover 110 that is complete except its engine and is a 'F' plate, where as the Nissan is a 'C'.
I have a couple of Questions though.:confused:

1. How do you get around the problem of the difference in voltage being that the Nissan is 24 Volt and the land rover is 12 Volt?:confused: is it a case of getting hold of a 12 volt starter, Alternator, and relay assembly or as I suspect a bit more involved.....

2. Is there any Company's out in the real world, or cyber world that anybody could recommend regarding adapter plates. Nissan SD33 6 cylinder onto a Lt77 box. Short splined shaft. Landy had a 300TDI in it at one time. or any other parts that may be needed.

Many thanks for all your help.

Eddie.
Click to expand...

Not sure if Eddie.d is still around but just found this post looking on youtube and just wondered what the out come was did he finish the project or not, was it a worth while conversion and is it any more powerfull than a 200tdi engine :)
 
Last edited:
cornish rattler said:
Not sure if Eddie.d is still around but just found this post looking on youtube and just wondered what the out come was did he finish the project or not, was it a worth while conversion and is it any more powerfull than a 200tdi engine :)
Click to expand...

One of these ones you give a load of advice and nothing comes back! Annoying, I believe shortly after someone used the advice above to make their system 12/24V.
 
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