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[bigjeepzj]

the lpg kit can be reprogrammed for 6 cyl i believe
and so can the injectors
I'm sure the panic will confirm

[jay140285]

I dont want to scrap it TBH, its to nicer a Jeep to loose.

Need to Sell the RX8 when its back and put the money into the WJ.

[Jeepjedi]

mine has done 111k on LPG the head gasket went not the vavles, my flashlube was not working for 40,000 of those (the twisty bit had closed), just depends, LPG likes long runs and thats what mine gets, either way its just bad luck.

Hate to say this Jay but I am with Jezz on this, weigh it in and get an I6, they dont sound as good but it will go on forever

[Bulldog67]

thats true bout long runs, not had any probs bar blocked filters until i have started shufflin back and forth on short trips for work

[isle of man]

Indeed the six is sexksy for LPG.

[jay140285]

Ok, so I get what £700 for it as it stands.

Then what can I get if I put another grand to it, sweet FA thats what.

But I can spend a grand on the WJ and still have a nice ride.

Thats my dilema, plus if we scrap the WJ it wont be another one we get. Maybe a KJ depending on whats about.

[isle of man]

Forget GHAY and look at ML500.

[jay140285]

TBH, as we now do not need to tow a horse trailer as we have the lorry,

My on order insignia will tow our caravan if needed, so ML500 just seems excessive.

[Dutch]

Ok, so I get what £700 for it as it stands. Then what can I get if I put another grand to it, sweet FA thats what.

But I can spend a grand on the WJ and still have a nice ride.

    Think I said that in the beginning of this thread.

[bigjeepzj]

insignia  
when did you chop your cock off

[jay140285]

insignia  
when did you chop your cock off

Insignia SRI through work, will cost me £65 a months with BIK, makes sense for work miles I am going.

[Panic mechanic!]

what about the blown gearbox? cos its a weak box and as a wise man once said," you know you have got no life and no style left, when you drive a vauxhall......!"

[bigjeepzj]

RIP jay 

[Panic mechanic!]

he went so young ......... but at least i got 8 more weekends free from now on!

[jay140285]

Well, it could turn into Passat Highline. Just depends which has the shorter lead time!!!! Anyway its only for the motorway mile crunching nothing else.

Rob, I still got the XJ, so you know that is going to need some work for MOT when the time comes.

[jay140285]

Ok, so if I am looking at around £600 / £700 to strip down and sort out the mulered no2 valve, and put new gaskets on both sides.

How much should I expect to spend more to get all 8 valves re seated and what is involved with sorting them out.

I know its fucked, but what gets done, what is replaced in order to sort it out?

Cheers

[demonicwillow]

Ave you actually got the head off to see exactly what the problem is ?? could just be a head gasket seeing as they are prone to blowing em cos of the soft cheesy heads, a cylinder leak test would tell you if it was a gasket or a leaking valve 

[jay140285]

No, It going to have to go to someone to do it.

Dont want to have to pay out to have it stripped to find out its a no go if I can help it.

Surely if it was the HG still we would be seeing compression issues on to adjacent valves, not 7 with around 145psi and then only 1 valve with 0.

All the googling says 2 readings next to each other would be effected.

Kev was confident the HG is ok, hence the valve dilema and if 1 needs doing surly all the others should be done.

-----------------------------------------------------------------------------------------------------------------------------------------------------

Ok so am I correct in thinking that if it is the valves ideally I need:

new hardened valve seats installed in the head, and new valves?

[demonicwillow]

Ahh right im getting my head around this now alot of confusion is getting in by the use of the word valve instead of cylinder I think, so you have 7 cylinders fairly normal and one cylinder at zero, which would initially indicate a valve problem, a blown head gasket would normally produce some form of compression and yes Kev is right in what he has told you no question, a blown gasket between two cylinders would normally produce very similar if not the same low compression figures, sometimes they will blow to oil, the cost here is coming in from having to get someone to do the work for you, several choices you have here (1) just book it in and get the particular valve/valves replaced (2) phone around some engine repair specialists and get a quote for reworked heads with stronger valves (if they are available) (3) get another second hand head and fit that (4) get another engine and swap (5) break it and get an equivalent model with a 4 litre inline 6 remove the lpg system off yours and gas that, either way its going to cost a bit of cash, (its probably an exhaust valve) but you are not going to know the exact problem until the relevant head has been removed anyway, it may just be the valve burnt away or maybe Valve seat recession or both or the valve maybe just carboned up stopping it from seating properly and sealing, get the head whipped off first then take it from there, knowing exactly what is wrong will help you with your decision because if any other valves in the other cylinders are fubar then its fairly certain the other bank will be worn too but if its only one valve then you may be looking at a different cause for failure.

[Mike Pavelin]

I've had a valve seat fall out of a V8 head before as well.

[jay140285]

your options and very appreciated.

1: cheapest option but then am I on a ticking bomb for the others to fail.
2: requested a garage I use and trust to work this out for me, Also sent an enquiry off to a local recommended engine reconditoner to re do my engne.
3: If I get a second hand head, would I just need to have the heads swapped? any other parts required (apart from the gasket kit)?
4: Sent some enquires for replacement engine, but I also then need to budget to have my LPG re installed on the replacement engine.
5: This is looking like an option at the moment 


I am right in thinking to have my engine's valves and seats done, that been all 8 I would be looking at around £1500 ball park?

[demonicwillow]

The lpg system is un affected by swapping the heads etc, the injectors are fitted into the manifold which would be removed from the heads then replaced onto the heads regardless of repair or replaced, if it were me, I would pull the head, see what the problem is, probably source another one, have it skimmed, bung it on and run it on petrol only until I decided to sell it for summat else, preferably the same with a 4.0L which will run forever and a day happily on the most abysmal of crude setups.

[Shaggy]

Jay, I don't know how handy you are? these aren't hard engines to work on when everything is out of the way but I would rebuild it if it were mine! Valves, your looking at about a fiver each if you get them through an engineering firm that knows their salt, roughly £100 per head for knew seats & the head refacing, then lap em' in yourself, then you need a top end gasket set, head bolts, new oat coolant, & new oil & filter, doing the work yourself looking at about £500 all in! It's a no brainer to me! you just need to know a good engineering frim that you trust or come highly recommended, try to find out which firm local garages use, you will find they all use the same firm, then add 35-50% to the bill! The firm I use recently did me a pair of sierra 4x4 heads, all new valves, new hardened seats, new guides & skimmed for £120 & turn around was same day.
Stop thinking doom & gloom & looking for another engine, unless it has completely dropped a valve & eaten the bore & piston or been pinking like a twat & done a piston (in which case it's your lpg installers fault) rebuild it then you know what you have! if you drop a second hand lump in it how long till your in the same boat again?? these engines were made of monkey metal & don't like running warm! I was talking to Nick about his the other day & we both agreed that if his wasn't doing long runs all the time I would be looking at the rad & thermostat to make it run slightly cooler.
Just my ten pence worth.

[jay140285]

Cheers Chaps, TBH I have done a head before.

I know the local recommended place that heads and things go to and that all the garages use.

I guess if I am thinking its screwed already, what harm can I cause.

[bigjeepzj]

Thats the spirit