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1997 Hiace Super Custom 2L TurboDiesel

John Gagnon

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I recently purchased this van for use in the Philippines. It's an oddball, coming from Japan originally as a right hand drive, then converted to left hand drive in the Philippines. The engine is clearly stamped a 2L and it has a Turbo on it, although I can't find it listed anywhere for this model of van. I had to change the alternator on it, which involved quite a bit of work, but we finally got it done. The question I have is: What is the oil pump mounted on the front of the alternator for? I would take it that the engine has it's own internal pump, I was just wondering what this second one is for?

Thanx in advance!

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I found the answer to my question. The front mounted pump on the alternator is not an oil pump, it is a vacuum pump that is lubricated by the engine. Diesel engines produce little vacuum, so this auxiliary pump is used to supply vacuum to the power brakes.

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