 | Home > Series Land Rovers > Series 3 - engine choice |
 
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17450   
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If the heads are on the original blocks, the engine numbers will tell you. 8:1 engine numbers start 901... and 7:1 start 904...
The compression pressure are 160psi and 145psi respectively. Finally IIRC there will generally be an 8 or a 7 stamped on the flat machined boss just above the centre branches of the inlet manifold. |
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4th Feb 2016 10:34pm |
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| LR90XS2011 Member Since: 05 Apr 2011 Location: bickenhill Posts: 3645 
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also don't forget there are 3 and 5 main bearing cranks on series 3 s , 5 bearing obviously better. I've heard that the 2.5 petrol out of a Defender is a good upgrade but they are quite difficult to find S/H DEFENDER 90 TDCI XS,
I hope everyone is well and your land rovers make you happy |
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5th Feb 2016 6:36am |
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| Chris86 Member Since: 15 Jul 2014 Location: South Yorks Posts: 789 
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As a slightly left-field choice, of you can find one the perkins Prima 2.0l turbo diesel is a great swap. I helped Rallysteve on here do one in his 109 a few years ago and it was absolutely brilliant! Light, powerful, excellent performance and good on fuel!
Far better than the series petrol or diesels, I think I would possibly even take one in preference to a tdi....... Chris |
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5th Feb 2016 8:06am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17450
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I've always been lead to believe that the 3 bearing engine is more highly regarded than the 5, but I cannot now remember why and personally only have experience of the 3. I have a feeling that the crankshaft is actually stronger on the 3.
The 3mb engine is pretty indestructible, there is a story of one running half the length of Africa with a broken oil pump and an overfilled sump to splash lubricate the bottom end, but I don't know how true it is. |
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5th Feb 2016 10:27am |
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| Trebro Member Since: 28 Jan 2016 Location: Hampshire Posts: 241 
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I thought the crank was changed to 5 bearing as an improvement to a weakness in the 3 bearing crank.
Fwiw I would try and stick with an original spec engine, series are really rusing on price I've a s3 with a 2.25 petrol and another with a 200 tdi, the 200 tdi has been virtually maintenance free since I installed it in December 2010, yet I plan on taking it out putting a 2.25 petrol back in. My problem with the tdi is the noise and vibration! |
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12th Feb 2016 10:25pm |
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