AC 433I engine - oil use

Kell · Feb 27, 2012

Have a 433I engine in an F2 combine. Doesn't get used a ton, but after about 2200hrs on it, it seems to use about a quart of oil or so after a stiff 20 hours of heavy combining. Don't see much for blue smoke while while the engine isn't working, at slow or fast rpms. Is this fairly normal for this engine at this age? I've only had the combine for one season. Thanks.

Bob Bancroft · Feb 28, 2012

My experience with those engines is that they are not generally an oil burner.
I seldom, if ever, added oil to the ones we had.
Two 433T's(one in a tractor, one in a combine) and one 433I, were all the earlier version- they needed a whiff of ether for a cold start on anything but the warmest day.
I would suspect the turbocharger first. I've had one leak into the intake. I guess it's more common that they leak into the exhaust.

Kell · Feb 28, 2012

Definitely notice the hard starting. The ether assist gets used pretty much every time I start it.

I'll take a closer look at the TC, hadn't really considered that until you mentioned it. But you're right, the intercooler part of the TC has an oil feed.

AC 433I engine - oil use

Kell

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Bob Bancroft

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Kell

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