Thread: Stuck oil rings & engine flush?

Originally Posted by PAT303

I'd give it some stick on the highway for a few K's and see what happens,thats a common fix for old peoples cars,either that or some ajax down it's neck. Pat

The old Italian tune up Seems to work on my old Rangie And its fun

HOLD EVERYTHING!!!

Check the MAF output too, I have seen a thor engined RR P38a use oil with a faulty MAF, thing ran lean and pinged its head off under load, oil consumption was chronic in 2000km, new MAF halted it immediately.

This was last year, I'm sorry the lightbulb only just came on

JC

makes sense unless his pistons are all insideoutsidemelty.


But Id have thought that the mechanic that tipped the desludger in might have picked up on it pinging and the fact that itd be running off idle like a slug....

Originally Posted by Blknight.aus

makes sense unless his pistons are all insideoutsidemelty.


But Id have thought that the mechanic that tipped the desludger in might have picked up on it pinging and the fact that itd be running off idle like a slug....

True, but I had driven this P38 and it just felt down on power,( not like some with a total MAF failure), and the pinging, well some people think it isn't even from their car...Don't get me started but amazingly replacing the MAF caused an instant halt to oil consumption, and being a Hi Comp motor I also told them to run it on premium, that also helped matters.

JC

pinging a hi comp motor... bet the rods loved that....

I can see how it happens tho especially if the scraper rings are just a little iffy and the second compression ring is doubling up as an oil scraper.

...With a 4litre or 4.6 it's just one step closer to liner issues and cracked castings if the detonation is caused by leanness, as the combustion temps are through the roof, never mind the rods and crank they'll last longer. she'll nip up a piston or overheat one or more and then they'll shrink after cooling and say hello to more oil consumption and piston slap when cold...
Why can't they get engine management/ protection right??? Take for example a Saab Turbo engine, the B234R. These 9.5:1 2.3litre engines have fantastic boost control and built in safety/ conservative boost levels yet heaps of power and stunning economy especially the manual versions. A Very simple system that works well as some of these engines will easily see 250 to 300K without any problem. (Not talking about the odd turbo failure, just bottom end and head etc)

The apparent forward steps in LR's engine management are backward in my opinion. Again, I have never seen more unreliability in the little alloy V8 since the advent of the P38 and D2 versions.

Just a little side rant there

JC

How I would have wished for it to be the MAF! However, no pinging, and it pulls right off idle very happily. I am not discounting that the MAF might be a bit old though... if you run it in first gear without touching the accelerator it is a little lurchy.

But idles okayish (a tad lumpy - might be carboned valves?).

Hmmm. I don't *think* it is pinging, but please describe what it would sound like