Thread: 4.6 Rebuild

Originally Posted by RonMcGr

A lot of british ones, you can.
El cheapo Holden, Ford and asian, probably not.

Bullplop, can machine and sleeve them all

Originally Posted by Pedro_The_Swift

yea,, but what does it GO like????

Not as well as the RR Sport S/C I was following this morning on the way home from Simon's (abaddonxi) place.

you WERE told to go super,, supa


was it by much???

Up hills in traffic he walked away.

but its better than before right?

Of the lights, it is quicker - at least I think it is. It does leave a lot of cars behind.

It's smoother but has an annoying light vibration at idle. Fuel consumption appears to be higher.

I haven't yet decided whether to chip it or not.

Hi Ron,

I've not frequented this forum often until recently.

I noticed you experienced a slipped cylinder. Do you know what caused that to happen? Was it an overheating situation?

On Christmas Eve 2007 my engine (1999 DII 4.0 V8) with 190,000 kms on the odometer, experienced a slipped liner, but I feel cheated because it wasn't even hot. In fact it was a rather cold evening and the I was just parking my vehicle after a slow drive. However it has been experiencing strange gurgling noises in the heater core, so presumably there was a huge air bubble trapped somewhere in the cooling system that ultimately led to my engine's demise.

I now have a 4.6 V8 with stepped liners and pretty much similar sort of components fitted, like yours.

My V8 is fitted with sequential LPG injection, and the 9.35:1 compression pistons. Would love to compare notes.

Thanks,

Lawrance Lee
'99 DII V8 auto
Melbourne eastern suburbs

G'day Lawrance - in from the AU-LRO mailing list and on RRNET as well.

I now believe that mine had been over heated and had the slipped liner from when I bought it nearly 6 years ago. The symptoms fit the bill. It also had a very blocked radiator when I bought the car.



At the time, I think the slipped liner problem wasn't as well known as it is now. I'd never heard of it and the local mechanics were unaware as well. It's a pity I initially spent a lot of money on the engine replacing head gaskets etc., when they weren't the problem. We looked at the gaskets and couldn't see anything wrong. I can't recall if the supposed steam cleaning of the head/piston crown had occurred. I do remember that the LPG tank was bone dry and the system had not long before been converted to venturi gas by the previous owner. I think he may have given up on LPG owing to backfiring - which I experienced from day one of ownership.

I';d be interested to hear how many litres/100km LPG you are getting highway and city. Mine's ranging between 18 hwy and 27 city at the moment.