HI all, after 270,000Kms the old 4JX1 finally succumbed to diesel leaking into the coolant, so much that it was just running out of the overflow bottle during idle.
No probs I thought and armed with the excellent procedures I found on this site I proceeded to pull out the injector sleeves and replace the seals that cause this problem. (For info the 16mm dyno bolt does not fit in my sleeves? so i had to borrow the tool from local isuzu garage)
Unfortunately upon sleeve removal I found corrosion in the cylinder head right where the sleeve seal sits, have replaced them twice but cant cure the leak so am looking for a replacement head.
I have a 2003 Auto with aircon that is an original Philippines car, not a Jap import.
Anyway the local Isuzu garage want 254,000 pesos for a replacement head, thats over 6,300 AUD....... is that the normal sort of price for this part?
I have since seen numerous after market heads from China and even S Africa but has anyone had any experience of these non OEM parts?
The other question I have is are the cylinder heads all the same for 2003 engines? Some people say yep others say they can be different for auto or manual; aircon or non aircon etc..., per the Isuzu catalogue here in the Philippines the part number for my truck is 8-97204-140-0.
The non OEM parts I find all tend to be part number 8972451841. Can anyone supply any info if these non OEM parts are compatible for a straight swap and what is the quality like as they only cost 10% of the OEM price.
Any help greatly appreciated.
Best regards,
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4JX1 cylinder head replacement
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