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I came across this quote on this forum discussing the reliability of the 90 series diesel . "Cooling and injection problems will kill the engine before its time, and these are the two areas that need maintanence in any older diesel." I recently purchased a 1996 model with 175,000 KM and would like advice on what I should be doing to it to avoid these problems. Thanks
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We'd need to know what engine you have, the 1KZ or the 1KD. We didn't get the KD here in Aus 90's but it arrived in later 120's and the 150's. The 120's seemed to give the most grief when it came to injectors but the problems are now understood, lots of info floating about.
The KZ had no injector problems, it's an OLD school engine. Pre-combustion chambers and conventional injectors. Some had a mechanical injector pump, others the electronic pump.
But the 90 has cooling issues and your car being so old (in years) might need looking at. Viscous hub on the fan is a common one that slowly deteriorates with age and will catch you out as overheating is the main cause of cracked heads in the KZ.
If you buy a new radiator, buy an exact replacement, not a single tube job if you intend towing. -
Is this a unit that a mechanic can check for wear and tear, or do you just replace the whole fan unit after a certain number of miles? 175,000 km is pretty low for a diesel engine, but I don't know much about when the auxiliary parts start going tits up.Originally posted by carco View PostComment
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Here in Aus. we replace or service the viscous hub when we see coolant temps rising for no apparent reason. I've never seen any indication of a silicon fluid leak and yet pull a crook one apart and she'll be way low. It must seep from the hub seal over time and that's what I was alluding to with the car's age.
Same as for a cam belt. At 175,000k's she's probably had one belt but at 20 years old, you'd hope that belt was done in recent times.Comment
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