hard to find a good HJ diesel mechanic

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Hey Look. It's a record for me! Three mud posts in 1 day!

Dearest Whirlwind.... Do not, under any conceivable circumstance, take a Toyota diesel, with a diesel problem, to any mechanic of any description, regardless of reputation or qualifications. The only people I know who do good work on engines and can solve mysterious engine problems, work in everything EXCEPT the mechanical industry. Most of them are employed in the IT industry. None of them work on anyone elses rigs.

Seriously. You can blow a huge wad of cash on getting your motor 'fixed', but it won't get fixed. You have to do this yourself.

So, start with a compression test. If the glow plugs 'stick' then slowly rotate them back and forth untill you work them out. If carbon breaks off, not really a big deal, your engine is pretty much garbage now anyway, just don't break the glow plug itself, as that would be bad news and would warrant pulling the head.

If you have low compression, which I would say is 90% likely, then drive the bastard until it won't start anymore. Only then is it really time to do something about it. Then I would suggest it's time to call G&S Cruiser parts and order up a spanky new (OK, actually Used) 12H-T. DO NOT, under any circumstance, let anyone talk you into a rebuild, or putting another sorry 2H under your hood. It will cost you $3,500 to rebuild if you do 90% of the work yourself. A good take out motor will give you WAY more power, not cost much more than a rebuild, and minimize your down time to aprox 1 weekend of hard work to swap the engine.

Peter Straub
 
Wayne, the dealer said they unscrewed the plugs as far as they could without forcing anything. They came out far enough to wiggle so they must have been almost out. He then asked me if I wanted them to force them out with the possibility of knocking stuff into the cylinder. I told them not to force them so they retightened them. I'm going to pull them this weekend just to see what they're talking about. I'll just try to get them out without knocking too much junk into the cylinder.If I do then so be it. I'm not quite ready to do an engine swap so I'd like to get a few more miles out of this engine.
Behemoth , I plan on doing the exact swap you're talking about but not for a while. It didn't make any sense to rebuild this motor when I could buy a low mileage Japanese one that's turboed for roughly the same price. This motor is actually not running too rough now except when it's cold. I just don't want to make it any worse. Hopefully I won't break off a plug. I wonder if that's what the dealer was worried about in the first place. Maybe that's why they did'nt want to force them out.
thanks, pete
 
when you have the plug almost out and it is starting to bind then put a pry under the 12m section and put steady force up and with a 12 m ratchet turn the plug. the small amount of crud that is stuck on will break off, no damage will be done to you engine.
cheers and relax, this is a common problem with the diesels...
 
I pulled out the glow plugs . The first one needed a bit of gentle prying with a bar but the rest came out by hand . Not much carbon at all. I don't know why the dealer thought it was such a big problem.I did a continuity check and the plugs are all working . Searched around for a compression tester but nobody has a diesel one so it's back to the dealer for the test. I don't really want to take it there but now that I've got the plugs freed they shouldn't have a problem. The plugs seemed a bit oily and I just wiped them up and put them back in. Now I just have to wait for the bad news after the comp test. Thanks again for everyones help. pete
 
I have had a plug break off into the head, had to pull the head and retreive the little bastard. And it was not carbon, the plugs were sold old and faulty they started too mushroom.

The hard part was parting with the 100 dollars for the head gasket, otherwise it was rather easy.

Pull the air cleaner and listen for a audible thumping sound, kinda like a drum. If you hear this it could be a bad cylinder. Open the oil cap on the valve cover and check how much pressure is coming out, there is generally some positive pressure.

As Peter mentioned a complete rebuild will cost, last one we did was more like 7K. The 12HT is a great option, I would also strongly recommend that engine.
 
Wherlwind said:
I pulled out the glow plugs . The first one needed a bit of gentle prying with a bar but the rest came out by hand . Not much carbon at all. I don't know why the dealer thought it was such a big problem.I did a continuity check and the plugs are all working . Searched around for a compression tester but nobody has a diesel one so it's back to the dealer for the test. I don't really want to take it there but now that I've got the plugs freed they shouldn't have a problem. The plugs seemed a bit oily and I just wiped them up and put them back in. Now I just have to wait for the bad news after the comp test. Thanks again for everyones help. pete

excellent.
i would suggest buying a tester, i know it is a few bucks but a dealer will charge you half the price so 2 tests and it has paid for itself...
just a suggestion...
 
Wherlwind said:
Searched around for a compression tester but nobody has a diesel one so it's back to the dealer for the test.

I got a Hasting diesel compression tester from Lordco a couple of years ago. You'll need the Toyota adaptor as well as it only had adaptors for VW, GM and something else.
Expect to pay around $75 or so.
 
I'm sure a trip to the dealer will be at least 75 bucks so I might as well buy one and do it myself. There is a Lordco in the town I work in so I'll have a look there. Did the adapter come from there too and will they fit all Toyotas ?
I've never done a compression test. Any little details I should know about?
 
Wherlwind said:
I'm sure a trip to the dealer will be at least 75 bucks so I might as well buy one and do it myself. There is a Lordco in the town I work in so I'll have a look there. Did the adapter come from there too and will they fit all Toyotas ?
I've never done a compression test. Any little details I should know about?

It's going to be special order from them. I had to come back the next day (I was in Surrey so it could be longer if you're out in the interior). The adaptor went into the injector hole I think rather than the glow plug hole so you'll be bleeding the system when you're all done too.
The adaptor wasn't listed as for Land Cruisers either. I think it was listed for the pickups but might have been the diesel Camry as well.
 

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