Series 3 engine replacement - options and advice?

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Longstride

Active Member
Posts
120
Location
Hampshire
Hello folks,

I recently bought a "cheap" 1984 series 3 truck cab off flea-bay! Chassis is reasonable, electrics work, the only real MOT blocker was the smokey diesel! I was hoping to get a proper expert to fix it with timing chain or pump adjustment, but it went from white smoke to bellowing black smoke. I've been told it's a full rebuild required by a local "specialist". I've no idea if true!

I like the landy but would prefer a petrol engine. I'm considering my options and after some advice. Searched the web, this forum and you tube etc but not quite found my answer.

Question:

1) should I just buy another cheap diesel and swap it? (Easiest?)

2) could I drop a 2.25 petrol in and flush tank and change electrics?

3) is this a good opportunity to do a V8 conversion? (I've read many a thread and guide on this and would to try it - appreciate it's more work to modify bulk head etc).

I'm in Hampshire Uk, done lots of minor engine work, but never an engine swap.

Any tips on what's involved appreciated. I'll happily spend a bit to get it done right (i.e but an engine crane, pay one of you experts to help ;) etc!

Cheers

 

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Who told you it was a complete rebuild? Get a second opinion. V8 would be the preferred option for many but V8 engines in good nick are getting harder to find and I've never seen a really neat conversion. An engine replacement of any type depends on your budget and mechanical skill, a straightforward swap of the 2.25 for another 2.25 either diesel or petrol isn't difficult but a wise man might consider replacing a fair few bits whilst the engine is out, e.g clutch, water pump, seals etc.

Col
 
Who told you it was a complete rebuild? Get a second opinion. V8 would be the preferred option for many but V8 engines in good nick are getting harder to find and I've never seen a really neat conversion. An engine replacement of any type depends on your budget and mechanical skill, a straightforward swap of the 2.25 for another 2.25 either diesel or petrol isn't difficult but a wise man might consider replacing a fair few bits whilst the engine is out, e.g clutch, water pump, seals etc.

Col
The landrover "specialist" garage. I've tracked a few down locally, but I'm getting the impression most of them just want to bolt on LEDs to new defenders at £90 / hr for an easy life!

It's hard to find a decent garage who can be bothered to work on an older rover I think.
 
Don't be seduced by petrol. Stick with a nice agricultural diesel. I would find a proper old school garage to get a second opinion on the current engine and depending on what they say start looking for a direct swap for the same again.
 
It might just need an injector or two or the pump timing might be off. Do a compression test before writing off the engine. How many miles has it done?

Col
 
It might just need an injector or two or the pump timing might be off. Do a compression test before writing off the engine. How many miles has it done?
Col


If the Odo is to be believed, and I think it's possible its correct, then only 45k! I know naff all about diesels! Any recommendations near Hampshire to take it to?
 
If the Odo is to be believed, and I think it's possible its correct, then only 45k! I know naff all about diesels! Any recommendations near Hampshire to take it to?
No sorry, I avoid garages whenever I can. Your best bet might be to get a mobile mechanic out if you can find one who is good with diesels. These engines are pretty straightforward so he doesn't need to be a genius.

Col
 
#1 on compression check, you need to know what condition the bores, rings and pistons are in. It could be a new set of rings will cure it well enough.
 
Thanks for help guys, your comments have helped me decide. I think the advice from the garage has been duff, I don't think the landy is in bad shape. These things are tractors!

Booked her in with R D Avery near Wiltshire now. They seem happy to take a look. Sound like some good old school mechanics there!
 
Hello folks,

I recently bought a "cheap" 1984 series 3 truck cab off flea-bay! Chassis is reasonable, electrics work, the only real MOT blocker was the smokey diesel! I was hoping to get a proper expert to fix it with timing chain or pump adjustment, but it went from white smoke to bellowing black smoke. I've been told it's a full rebuild required by a local "specialist". I've no idea if true!

I like the landy but would prefer a petrol engine. I'm considering my options and after some advice. Searched the web, this forum and you tube etc but not quite found my answer.

Question:

1) should I just buy another cheap diesel and swap it? (Easiest?)

2) could I drop a 2.25 petrol in and flush tank and change electrics?

3) is this a good opportunity to do a V8 conversion? (I've read many a thread and guide on this and would to try it - appreciate it's more work to modify bulk head etc).

I'm in Hampshire Uk, done lots of minor engine work, but never an engine swap.

Any tips on what's involved appreciated. I'll happily spend a bit to get it done right (i.e but an engine crane, pay one of you experts to help ;) etc!

Cheers
There are a lot of engine swap options.


-Diesels will be noisier and less refined and potentially slower, but usually better mpg. So it all depends what you are wanting at the end of the day.


-Budget it correctly, even simple engine swaps will cost money, and often it’s all the little bits that add up, such as engine mounts, new clutch, new hoses, etc. £500-1000 minimal is probably wise, but very easy to double this or more.



Easiest option is another 2.25 or get yours looked. But remember all 2nd ones are old. Plus the stock 2.25d is slow, low powered, noisy and not all that economical.


A 2.25 petrol would be a relatively ease swap and mostly a bolt in job, but a few differences. The 2.25 is also slow, but should be refined and a lot smoother, mpg not as good. Remember all 2.25 petrol’s are also old.


The 2.5 version of the petrol or the diesel (NaD) are also easy swaps, although will require a few adaptions and mods to work. The diesel is only moderately more powerful. The petrol does give a power hike and you can spend a lot tuning them, making them quite nice power plants, but will always drink fuel and never be all that powerful.


The 2.5 TD from a 90/110 is a similar amount of work to swap in as the 2.5’s and will offer a power hike and mpg hike over the older engines. But these are all old these days.


-Remember you’ll need an entire new exhaust with more powerful engines and probably new radiator setups. Much fits about 90% of the way and can be adapted using latter factory parts. But it will increase the cost.


200Tdi is a nice swap and still plenty of choice. The Tdi engines are lot more powerful than earlier offerings and can be tuned more easily also. The 200Tdi will fit about as easily as a the 2.5TD does. This is still a good engine to consider. Only downsides are, the Tdi’s are less refined than the older diesels. So in a Series will always be noisy. But they will go well and return good mpg.


Personally I see no point at all in doing the “Di” conversion, i.e. taking the turbo off the Tdi. It really doesn’t make it any easier to install, it just saves having to buy a custom exhaust downpipe from the turbo. A 200 Di is likely to perform very similar to a 2.25 petrol or a 2.5 Nad diesel.


300Tdi. These engines offer the same power/mpg as the 200Tdi and are largely the same engine. Really the 300 was LR’s attempt to make the engine cheaper to mass produce. It does use a serpentine belt setup over the older vee belt of the 200Tdi which is nice, but hardly a deal breaker. There are no other technical reasons to opt for a 300 over a 200. However, due to some of the changes to the 300Tdi, it is a fair chunk more work to fit than a 200Tdi and will cost more in time, effort and money.


Rover V8. A fairly straight forward swap, but you will need a few bits of bespoke custom work. V8’s vary in power depending on spec/CR/condition, as a rule they should offer similar mpg to a 2.25 petrol as well as good refinement and similar power to a Tdi or more.


T-Series 2.0 litre. This is a modern 16v petrol engine from a Rover car, and was fitted to some Discovery’s. It’s a nice engine with more grunt than the stock 2.25, but also plenty of revs and more power than a 200Tdi, as well as being a lot lighter. They should go very well in a Series. Although you might have to spend some time finding all the bits. And of course Rover offer this engine in turbocharged form in some cars, to lots of options for more poke.


These above are the main engine swap options you have. However other LR engines such as a Td5, BMW TD6, L-Series diesel, even a K-Series could all be adapted using bits from LR, even a BMW 2.8 straight 6. But all of these will require far more extensive mods and will likely need to you consider upgrading things like axles, brakes, transmission and steering too.


Then there are other non LR engines you could consider. I believe you can still buy some bits to fit Ford V6, something once quite common. The Perkins diesel was also a popular choice in times past. But with the array of good LR based engines, you’d have to really want to opt for something else to make it worthwhile.
 
You might want to have a look at this thread to avoid diesel mayhem. In short, have your garage lift the top and check that the hotspots aren't going walkies. I'd recommend a swap to new ones, while you're at it. Also, this web page is very useful for a diesel owner!
 
As said above, tdi is a well-known option, if a little noisy. 2.5 NA or TD can be had fir very little and will be less powerful, but quieter. For V8, talk to JE or Kingsley as they put tuned Rover engines (among other things) into the Defender so a series should be doable.
 
Hello folks,

I recently bought a "cheap" 1984 series 3 truck cab off flea-bay! Chassis is reasonable, electrics work, the only real MOT blocker was the smokey diesel! I was hoping to get a proper expert to fix it with timing chain or pump adjustment, but it went from white smoke to bellowing black smoke. I've been told it's a full rebuild required by a local "specialist". I've no idea if true!

I like the landy but would prefer a petrol engine. I'm considering my options and after some advice. Searched the web, this forum and you tube etc but not quite found my answer.

Question:

1) should I just buy another cheap diesel and swap it? (Easiest?)

2) could I drop a 2.25 petrol in and flush tank and change electrics?

3) is this a good opportunity to do a V8 conversion? (I've read many a thread and guide on this and would to try it - appreciate it's more work to modify bulk head etc).

I'm in Hampshire Uk, done lots of minor engine work, but never an engine swap.

Any tips on what's involved appreciated. I'll happily spend a bit to get it done right (i.e but an engine crane, pay one of you experts to help ;) etc!

Cheers



Far and away the easiest would be another 2.25, either petrol or diesel, or a 2.5 naturally aspirated diesel, or a 2.5 petrol.
Either of the latter require only a few changes to the rest of the vehicle, and provide a useful improvement in power.
 
If you want to get back on the road for this summer then an like for like swap or a short engine are your best bets. There is a lot of choice but every thing that involves modification takes a load more time and requires lots of bits to be made or adapted. My S2A has a Perkins engine, i like it but hoses are specials, the rad is a special (a 400 mile round trip for the only one off the shelf in the UK when mine failed) and the down pipe is near the end of its life and its a special too. I'm gettng the exhaust sections ready to make a new system but I can take time because its on the road.
 
Thanks for help guys, your comments have helped me decide. I think the advice from the garage has been duff, I don't think the landy is in bad shape. These things are tractors!

Booked her in with R D Avery near Wiltshire now. They seem happy to take a look. Sound like some good old school mechanics there!
Let us know what the garage says.

Col
 
If you want to get back on the road for this summer then an like for like swap or a short engine are your best bets. There is a lot of choice but every thing that involves modification takes a load more time and requires lots of bits to be made or adapted. My S2A has a Perkins engine, i like it but hoses are specials, the rad is a special (a 400 mile round trip for the only one off the shelf in the UK when mine failed) and the down pipe is near the end of its life and its a special too. I'm gettng the exhaust sections ready to make a new system but I can take time because its on the road.

One of the reasons a Perkins was a favourite conversion of the old 6 cylinders. The 6 cylinder had a huge rad that was well suited to the cooling needs of the Perk.

For the downpipe, it was common to cut off the end, and the exhaust flange lower down, and fit a section of stainless flexi exhaust using a couple of clamps and gun gum. Doing this also reduces vibration in the lower part of the exhaust system.
 
I've always tried to avoid engine swaps, the ones I have done have always had unforeseen complications except when it was like for like. Many on here are skilled engineers albeit self taught and they always make things sound reasonably easy, to me a snapped head bolt is a major drama. An engine has to be really, really knackered to make it worthwhile unless you want extra power. At the end of the day it is a landy, an old one at that. Any replacement might end up just as bad or worse in a year or two unless you can get a garenteed, reconditioned one. In my madder moments I've thought about swapping my 2.25 for a v8 but quite apart from not really having the facilities, I would always be worried about the effect the extra power was having on my old gearbox and axles.

Col
 
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