Charles Banbury

Active Member

• Aug 1, 2016

• #1

Quick question. After experiencing a slipped liner on my P38 4.6 and having to sell the old girl, I have seen a very nice classic for sale. It's a 1993 3.9 and I have also seen a 1998 3.5. Do both of these also suffer from the 'slippage' of the P38 or, are they a safer bet? I really miss my Range Rover and would love to get back behind the wheel. Any advice? Anything reliable for sale? Many thanks in advance.

 

Charles Banbury

Active Member

• Aug 1, 2016

• #2

Sorry that was a typo. Second car was a 1988 3.5. Apologies

 

Saint.V8

Dyed-in-the-wool 100% RR Junkie

Full Member

• Aug 1, 2016

• #3

safer bet.....

 

P

pete1987RRC

Well-Known Member

• Aug 1, 2016

• #4

3.5 is solid, no issues and most of the 3.9s wil be OK if they lasted this long

 

martynv8

Well-Known Member

• Aug 2, 2016

• #5

+1 3.5 were bullet proof. 3.9 & 4.6 is where it all went wrong.

 

paul58

Member

• Aug 2, 2016

• #6

martynv8 said:

+1 3.5 were bullet proof. 3.9 & 4.6 is where it all went wrong.

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i,m not a mechanic so just my thoughts,could an engine be built from the original bore of 3.5 then the longer stroke crank and rods of a later 4.6 engine fitted to give an engine of about 4.4 ltrs ,but without the slip liner problems.

 

martynv8

Well-Known Member

• Aug 2, 2016

• #7

Not sure, but the later 3.9 & 4.6 blocks were cross bolted to give more strength to the crank.

 

norseman

Well-Known Member

• Aug 2, 2016

• #8

pete1987RRC said:

3.5 is solid, no issues and most of the 3.9s wil be OK if they lasted this long

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Not always the case, both myself & a mate each converted a 3.9 to LPG back in the 'nineties with engines that had covered around 90k at the time. Within one year/12k both had developed the dreaded slipped liner syndrome - neither conversion was a DIY job either. It is possible to re-build a 3.5 to 4.3 (Real Steel used to supply the kit) which results in a very torquey engine without the need for excessive revs. whilst retaining the 3.5's reliability. I knew a LR mechanic who carried out this conversion on his own 3.5 but you have to respect the transmission thereafter