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disco2 v8 misfire

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Range Rover Blues:
P.S. you daid the garage had had the engine apart? did they skim the heads? if so do you know what gaskets were fitted to them?

remmy7:
Hi all,

Here goes first of all Extremeteam I am in Kirkcaldy. The heads were skimmed but I have no idea what thickness of gasket has been used. I have just been out and disconnected the MAS and whilst it was slightly worse on gas it was just the same on petrol. The engine seams to pull very well regardless of incline once above 4000rpm, idles with a slight burble and revs freely, it is only when it is put under load at lower rpm that it doesnt want to know and begins to mis and backfire. Re the timming issue I know that the timming sensors on the crank were replaced at the rebuild but you have to excuse my ignorance here but again I assumed that the engine management made the appropriate calculations therefor I have know idea about the initial set up of timming I just assumed that the bloke knew what he was about.(just realised that there are a lot of assumptions here and I know what that makes). Lamda sensors were replaced around 20000 miles ago.

Thanks again Remmy7

Xtremeteam:
remmy7

do u fancy a wee trip over?
im in the garage today stripping a dif but if u wanted to u could pop round & ill have a wee look & can discuss

thermidorthelobster:
Crank sensor is also a possibility worth considering.

Do you have an electronic unit which adjusts the timing on LPG?  If so, some have a bypass setting.  You want to get it running sweetly on petrol before you worry about the LPG, and bypassing as much of the LPG paraphernalia as possible is a good place to start.

Xtremeteam:

--- Quote from: "remmy7" ---Hi all,

Here goes first of all Extremeteam I am in Kirkcaldy. The heads were skimmed but I have no idea what thickness of gasket has been used. I have just been out and disconnected the MAS and whilst it was slightly worse on gas it was just the same on petrol. The engine seams to pull very well regardless of incline once above 4000rpm, idles with a slight burble and revs freely, it is only when it is put under load at lower rpm that it doesnt want to know and begins to mis and backfire. Re the timming issue I know that the timming sensors on the crank were replaced at the rebuild but you have to excuse my ignorance here but again I assumed that the engine management made the appropriate calculations therefor I have know idea about the initial set up of timming I just assumed that the bloke knew what he was about.(just realised that there are a lot of assumptions here and I know what that makes). Lamda sensors were replaced around 20000 miles ago.

Thanks again Remmy7
--- End quote ---


give me a call on 070 if u want to come round

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