Pajero - miss at idle

[RB30-POWER]

The thing has gotten worse, and it is almost definately a borked valve, you can hear it in the exhaust, going to compression test it tomorrow and then rip one of the heads off. No biggie, glad I got the car cheap though

If it's a valve, it will usually miss on idle fairly good and be a consistant miss, when you rev it up off idle the miss should go away because the valves are opening and closing that fast it doesn't matter that it's not seating properly.

Start with compression test, fairly sure you need to remove manifold if it's the model i'm thinking of to access all the plugs, might be worth considering plugs and leads as well if you do not want to rip off the manifold again.

Usually the gaskets are metal type and I re-use with silicon on them, as these engines can develop vac leaks for whatever reasons from these gaskets, silicon is a sure way not to be caught out.

I did a later model the other day, just out of warranty only 60k on the clock, had a massive vac leak, but could not identify source because of all the manifolding, i tore the thing down to the cylinder head face ports and re-sealed every gasket back up and it fixed it, but no evidence of where the leak was on any of the gaskets, but i wasn't doing to job twice so went right down to the cylinder head, but usually for plugs, you only need to remove the top half of the manifold and leave the bottom half of the runners.

[JZK25]

Those old clangers love to recess and burn valves.

[myliberty]

Gq.

[Dave]

forum is borked, I can't see myliberty's last post (telling me to buy a patrol), yet in the menu it appears, weird shit.

[Dave]

now I can see it, and I was right, weird shit.

[Billzilla]

The forum has a burnt exhaust valve.

[Euroboost]

Have you checked the dizzy cap? The Magnas were well known to arc across the cap, usually under load although I came across some that only did it at idle.

[Dave]

2 cyls fucked on compression test, of course they are on different heads. Going to do timing belt, hoses etc while we are in there.

[BigMuz]

Awesome news :D Think of it as a dose of what every month would have been like if you bought the Landrover/ Range Rover/ whatever it was.

[myliberty]

My old man used to own a GQ before trading up to a GU.

Both of them idled perfectly. Just sayin.

[da9jeff]

Awesome news :D Think of it as a dose of what every month would have been like if you bought the Landrover/ Range Rover/ whatever it was.

lol, so true

[MartyHusseinXF]

Awesome news :D Think of it as a dose of what every week would have been like if you bought the Landrover/ Range Rover/ whatever it was.

Fixed

I bet the previous owner had no idea

[Dave]

what a cunt of a thing to pull apart, it is going back together with new everything as I never ever want to pull this cunt of a thing apart ever again. Bores look good, should easily get another 100,000 out of the cunt once it is back together.

Thinking about getting stellite seats and getting a gas conversion, whilst the rebate is still on.

[myliberty]

gas conversion

best idea ever.

[Glenno]

what a cunt of a thing to pull apart, it is going back together with new everything as I never ever want to pull this cunt of a thing apart ever again. Bores look good, should easily get another 100,000 out of the cunt once it is back together.

Thinking about getting stellite seats and getting a gas conversion, whilst the rebate is still on.

Its a mitsu engine the rings are made of plasticine so they end life smokey but with good bores.