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Joined: Aug 19 2019
Posts: 186

Must be on Bosch. My '01 Disco has it, IIRC it's a vacuum line for the brakes. That doesn't sound right for a P38 though, with the ABS pump giving the muscle.

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Joined: Jan 16 2017
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UK Spec Disco 2 here, and Rave confirms its for the brake servo there on the Disco (I could have walked out to it to check, but was easier to check Rave). Mine has it, I know that from losing the red clip previously and having issues locating a replacement as its not on the parts list.

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Joined: Dec 29 2016
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The new engine we've just fitted from V8 Developments has a high torque cam, bigger valves and gas flowed heads.

We're still in the running in period and I'm being religious with it so I've not done anything daft with it yet so I can't comment for sure... However, Rob at V8 Dev said when pulling away I can use full throttle but not to let it go over 4k. Apparently using full throttle helps to bed the rings in. On the motorway if I drop to 65, pull it into 3rd manually and give it a boot full it certainly feels a LOT more sprightly then the other identical car we've got.

Once it's done it's running in and we've got our 16ft trailer behind it will be the test :)

David.

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Joined: Aug 19 2019
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Brian did you find a part number? Mine broke when I removed the plenum. It's on with RTV for now.

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Joined: Jun 17 2018
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When I rebuild tractor engines we get them on a PTO dyno and load them down to seat the rings..

I see no reason why not to do the same with a V8, work on an M62 I did and she pulls hard..

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Joined: Jan 16 2017
Posts: 734

Harv wrote:

Brian did you find a part number? Mine broke when I removed the plenum. It's on with RTV for now.

Afraid not. I was lucky around a month later found it stuck on top of the chassis rail thanks to the muck all over it from various oil leaks. How it managed to stay there that long is beyond me. Mine was wedged in with ptfe tape in the meantime

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Joined: Dec 29 2016
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StrangeRover wrote:

When I rebuild tractor engines we get them on a PTO dyno and load them down to seat the rings..

Some of those big 6 cylinder tractors sound amazing whilst at full chat on the dyno!

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dhallworth wrote:

StrangeRover wrote:

When I rebuild tractor engines we get them on a PTO dyno and load them down to seat the rings..

Some of those big 6 cylinder tractors sound amazing whilst at full chat on the dyno!

That they do!

The best yet was a Case CVX Puma!!!

That sounded incredible

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Joined: Jun 24 2020
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Gilbertd wrote:

Maybe because yours is NAS spec but what's the pipe stuck in the red bit next to the PCV? On a UK car that is normally blanked off or is that part of the mod?

That vacuum line is for the brake servo as someone else mentioned.
There is also the 3rd mini vacuum line is for Secondary Air Injection (SAI) system for emission control on the Bosch engine. From what I've read, LR installed it on P38s and Disco 2s that were sold in California and I think in Japan.

Be lucky that SAI is not on Land Rovers over here in the UK. It is a PAIN to troubleshoot with the extra vacuum tubing, and extra electrics.

BrianH wrote:

Mine has it, I know that from losing the red clip previously and having issues locating a replacement as its not on the parts list.

Look up Saab nipple bushing 9mm ID #55557389 or #9179318. I had to replace mine a month ago. The Saab part is way cheaper than LR and it has the same dimensions. I punched it out from inside of the manifold with a 3/8” drive long extension and a 3/8” to 1/4” adapter at the tip.

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Joined: Dec 30 2015
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Makes sense for it to be a vacuum take off for the brake servo which would explain why the P38 doesn't have anything connected as it doesn't need one. SAI was fitted to all NAS spec cars, not just California, one of the many subtle differences as well as the steering wheel being fitted in the wrong place.

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Joined: Aug 19 2019
Posts: 186

I think SAI is only on the later D2's. My 2001 (Canadian NAS) doesn't have it and I don't think it ever did.

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Joined: Aug 19 2019
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Thanks for the part number Juke. I'll see about ordering one.

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Joined: Jan 16 2017
Posts: 734

JUKE179r wrote:

Look up Saab nipple bushing 9mm ID #55557389 or #9179318. I had to replace mine a month ago. The Saab part is way cheaper than LR and it has the same dimensions. I punched it out from inside of the manifold with a 3/8” drive long extension and a 3/8” to 1/4” adapter at the tip.

Much obliged, have made a note of that for future use as its bound to go missing again. Looks like I've cured one oil leak (valley gasket) to discover another one now (rear crankshaft seal).

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StrangeRover wrote:

dhallworth wrote:

StrangeRover wrote:

When I rebuild tractor engines we get them on a PTO dyno and load them down to seat the rings..

Some of those big 6 cylinder tractors sound amazing whilst at full chat on the dyno!

That they do!

The best yet was a Case CVX Puma!!!

That sounded incredible

I'm half seriously looking for a tidy John Deere 3650 just now. Have a notion for one on wide tyres and a wide step with that 6 pot turbo. Total overkill for what we need but it would be fun!

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Joined: Jun 17 2018
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dhallworth wrote:

StrangeRover wrote:

dhallworth wrote:

StrangeRover wrote:

When I rebuild tractor engines we get them on a PTO dyno and load them down to seat the rings..

Some of those big 6 cylinder tractors sound amazing whilst at full chat on the dyno!

That they do!

The best yet was a Case CVX Puma!!!

That sounded incredible

I'm half seriously looking for a tidy John Deere 3650 just now. Have a notion for one on wide tyres and a wide step with that 6 pot turbo. Total overkill for what we need but it would be fun!

Good tractors, mechanically quite strong, only time i've had one in was for a clutch...

What work you planning on having it do?

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Joined: Dec 30 2015
Posts: 1963

Mow the lawn - really fast :)

I'm only half kidding.. we have a (smaller) John Deere at work to pull the 9m gang mover. It's amazing how much they can cut in a morning!

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Joined: Jul 21 2020
Posts: 38

Just seen this thread. I sold my 5.5 RV8 engined na TVR Chimaera earlier this year.

400bhp on Surrey Rolling Road. Super reliable, loads of track days, sprints and drag days, (11.83 seconds).

Of course this all comes at a price but to keep costs sensible, I built the engine, ( and everything else).

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Joined: Aug 05 2019
Posts: 88

phazed wrote:

Just seen this thread. I sold my 5.5 RV8 engined na TVR Chimaera earlier this year.

400bhp on Surrey Rolling Road. Super reliable, loads of track days, sprints and drag days, (11.83 seconds).

Of course this all comes at a price but to keep costs sensible, I built the engine, ( and everything else).

phazed wrote:

Just seen this thread. I sold my 5.5 RV8 engined na TVR Chimaera earlier this year.

400bhp on Surrey Rolling Road. Super reliable, loads of track days, sprints and drag days, (11.83 seconds).

Of course this all comes at a price but to keep costs sensible, I built the engine, ( and everything else).

What transmission did you have behind it?

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Joined: Jul 21 2020
Posts: 38

T5 box which is strong enough for all that torque if not abused too much.

Saying that. I’ve done many drag days and have run and 11.83 which is pretty good for the old RV8.