Thread: New heart and drive for D2

Originally Posted by TerryO

Hi CJT,

I take it that when you say a brand new built 4.6 you talking about a crate engine that is not one of their rebuilt 4.6's?

If so just remember that a brand new 4.6 doesn't come with stepped liners.

Grumdriva went through this and he was told by a Land Rover shop that he should buy a new 4.6 as they had fixed the slipped liner problems. His brand new 4.6 got replaced twice, once with crank issues only several thousands k's after being originally fitted and then again after another 40k or so later because of a slipped liner.

He then brought a TRS recond 4.6 rather then going down the path of another new engine with the same potential liner weakness. Warranty did not cover the second 'new crate engine' failure as it was more than a year old so he ended up paying for his new engine twice.

I personally wouldn't buy a new Rover V8 because they don't come with stepped liners and they have not fixed the original problems no matter what they tell you. A recond 4.6 with stepped liners sounds like a good idea though.

Just ask Grumdriva...

cheers,
Terry

I thought about the liner issue after I spoke to them as well.

Would they not put liners in if I asked. They said they actually build the motor for me, so it could be a possibility.

Just when I thought I had it sorted out...

Originally Posted by Pedro_The_Swift

or, maybe start with a good 4.6 bare block and add a TRS 4.9 stroker kit,,
and all the 4L bits,,

Definetely something to think about.

I will talk to TRS again about further options.

TR Spares in Sydney had a 4.6 linered short block for $3500- when I was shopping around. Was good valueby comparison to the others but not as good as the 2K 4.6 I ended up with.

Originally Posted by CJT

Definetely something to think about.

I will talk to TRS again about further options.

I'd guess it would cost quite a bit more for them to pull apart a brand new motor and then have it machined for stepped liners and then rebuild the engine.

If I remember rightly your intention is to do some heavy towing, with my D2 V8 the engine gets really hot when towing 2.5 ton, but runs fine when not.

It would seem that high temperatures are what these V8 motors don't like.

Good luck with it.

cheers,
Terry

There is a good site that I think Pedro has posted up before that sites (with some authority) that the cause of many or most V8 rover failures are cracks in the block (on the outside area of the pot - ie outside the liner) causing overheat and liner movement. Ie its not the liners themselves going first. So...if it were my coin I would want a crack detected 4.6 where it was re-built with new top hat liners, pistons, rings, crank, cam, rods, new or well re-coed heads etc.

Cheers

Having had the same thought process and going with a new 4.6 without the top hat liners - thinking the 12month new warranty should go someway to help - and knowing that I will do some towing but not much - how does one go ahead and protect a motor from over heating? A larger fan? A larger radiator? Bonnet scoop? What do I need to do to protect my D2 and my wallet?

On a side note...the 4.6 is meant to be the real heart of a D2.