Bluesman wrote:
The first tip Jack I didn’t understand. There is an oil line between the block and alternator? That strikes me as odd. Is that specific to Diesels?
Also are the heater hoses readily available?
John,
Yes, diesels don't produce engine vacuum, which is needed for the brake booster and the ventilation system. So Isuzu mounted a vacuum pump to the rear of the alternator. It's a vane pump that requires a constant oil bath. Interestingly, GM used a different approach in the diesel Chevy S10 / GMC S15. They used a separate belt-driven diaphragm pump so that the could use the same Delco alternator as the gas trucks used. Anyway, that oil line is rubber, with a fabric cover for reinforcement. Over time, the rubber gets brittle and fragile. If you so much as bend it (while troubleshooting your alternator, for example) you can break the rubber line, with no visible damage because of the fabric covering. When you start the engine and drive, you can dump all your engine oil in under a minute. Quite a few engines have been destroyed this way.
Heater hoses - They're all molded specifically for this vehicle, and I believe they're all available. Did I send you the email address of my supplier?
Jack
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'83 Isuzu P'up Diesel LS - Original Owner
JoeIsuzu@IsuzuPup.comIsuzuPup.com