advice needed on 3.5 v8 EFI

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300 truck cab

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im goin to look at a range rover classic at the weekend it,s a 3.5 v8 EFI jus wondering what to look out for with the v8,s
thanks
 
On the 3.5 you need to make sure all the wiring and ECU are all in good nick and if its a flapper system then dont even bother as there so unreliable its unreal and plus parts like ECU AFM are getting hard to get. if your going for a 3.5 then get the hot wire system as there not brill but alot better than the flapper sort.

Just so you no Flapper models have a flap inside the air flow meter and the hot wire has a tube with what looks like a probe inside
 
discopaul, i don`t know where you get your info from but id say its a carb set up thats the one to steer clear of (as they go out of balance) all EFI systems i have had have been brill and i have had a few in my time,flapper or hot wire,just my though.
 
You won't find a 3.5 RRC with a hot wire system that was later with a disco.
In the 10 years I had my 3.5 all I had go wrong with the engine management was the ECU failing giving difficult starting (over rich) and a ECU coolent temp sensor failing.

What to look for, blue smoke from the tail pipe, oil fumes from the rocker cover, remove the two rocker rocker cover breathers and check on condition the both they should be clean especially the foam one at the rear also condition of hose's, plug leads oils/fulids etc the usual stuff and no rattles.
By now I would think most of the important stuff as been replaced, best to start the engine from cold ie. over night, if the engine has been pre warmed before you get there this can hide an few problems.
 
carbs may go out of balance but its somthing that only needs time to sort and not hunting down parts that are hard to get hold of plus for off road use there are less electrics and things to go wrong
 
If it runs quietly you're half way there.

If it's missing or lumpy it's probably ignition, but could be more serious so be aware.

Try to get it started from cold as above, and see if it revs nicely after a few minutes to warm.

Shine a torch in the oil filler to get an idea of how much barbecue is in there, ideally nice and brown and clear but usually black ****. That needs cleaning and probably all the breathers too.

They all seem to leak oil from the rear main bearing seal/cap too - not a major worry.

As above, IF it's actually running sweet and quiet at time of purchase you're doing pretty well. Oil colour, when it was last changed, and inside rocker cover condition will tell you the rest.

Cheap and easy to repair the fuel and igntion system, pretty safe bet tbh if it's a smooth quiet runner :D
 
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