NH pajero valves need replacement

gday robbo.
one thing to be carefull if doing the valves is the heads have a tendancy to crack.
another thing to think about is yank the motor out and stick some rings and bearings in it.
after recently doing a v6 overhaul and heads on another its probly only a couple of hours more to pull the engine out and in.there quite simple to remove compared to some cars.you might save the time any way with all the pulleys ect you have to remove to get the heads off easier outa the vehicle.
heads/valves arnt a cheap job depends if it needs valve seats/guides ect you could be looking all up around $2000-2500.this includes labour.
a fully recod one fitted is around the $4000.

Hi Ian, if the rest of the truck is in good nick and you are going to keep it I would seriously think about getting the motor reco-ed or a replacement motor.
The problem of getting the valves done at that sort of K's is that the top end will work a treat but the piston rings are still 250,000 K's old and that will lead to other
problems.
But I think you allready suspected that.
Will

Not keen on buying someone else's old engine (reconditioned or replacement) .

I can live with a bit of smoke on idle - been making smoke for a couple of years - and will put off having the valves replaced for now - or until it is absolutely necessary. Maybe a change in the old I use - rather than GTX Magnetic or GTX3 to a thicker oil might help a bit.

Yes - I plan on hanging onto the old truck for at least a few more years - there is absolutely no rust in it, and it's body and interior are in good nick, as is the rest of the mechanical stuff - recently hard front and back shocks replaced, tappets were replaced in November, a/c overhaul in Febuary, clutch overhauled late last year, it's got a new altenator and starter motor (summer last year cf NRMA roadsiide service) and a battery that's only a few months old.

hi robbo we have a 91 nh paj 300cc as well just done over 280.000ks we brought it 2 yrs ago and have had problems with the engine room we have spent thousands on getting it set up for outback travel from a long range fuel tank to a glind shower .now the engine has gone so because we love the old truck to bits it,s in getting a total rebulid from new heads to a new oil pump to a h/d clutch kit i.ve told my machanic to replace any thing that he thinks needs replacing to replace it no holding back .so i now how you must be feelling just think your not the only one in the same vote ,we hope to have travel free problems after we get it back and the first place i,ll be going is north cheer,s peter

What do you the engine has gone ?

I bought mine brand-new and have looked after it even if it's done some long trips (up north and out west). I'm hoping to see 350,000 km before the engine is stuffed , crossing fingers.

hi robbo it,s hard to explain in words i,d be here all night other wise the last owner must have thrashed it to bits all i know so far is that i told our machanic which i have high respects for to not stop at nothin he has just informed me that one of the heads has a hair line crack in it ok so weve orded two brand new heads at 750 each plus a new oil pump as well thats just to start with i told him not to ring me unless it,s ready if any thing needs to be replaced just doit thats the story so far cheer,s peter

Some people - whio buy 4x4s and treat them like a sportcars.

It's a truck - so should not be expected to perform like sportcar.

I've alway been gentle on the accelerator and tried not to push the engine. Rarely red line it.