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Old 10-28-2009, 05:54 PM   #1
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ISC 330 Cummins - Have I got a problem?

OK folks. I'm not exactly sure what I am looking at here. Can you identify whether this is good news, or bad news?

I was up under, doing an oil change. I've never seen an uncovered threaded hole like this.

Please identify what I am looking at here.

Everything has operated normally. Is there supposed to be a plug?



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Old 10-28-2009, 06:11 PM   #2
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The threaded hole is at the bottom of the "bellhousing". The engine flex plate and transmission torque converter reside in the bellhousing cavity. That area should theoretically be "dry", but you might see some deposits from seepage around a rear main seal on the engine or the front pump seal on the transmission.

I can't answer whether or not your chassis builder would normally plug this cavity, but (as you say) it doesn't hurt anything for it to remain open other than some dirt and road splash possibly getting into the area.

Next time I'd suggest raising questions like this in the Cummins engine forum - it will get a lot more visibility among other Cummins owners.

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Old 10-28-2009, 07:19 PM   #3
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Quote:
Originally Posted by Gordon View Post
OK folks. I'm not exactly sure what I am looking at here. Can you identify whether this is good news, or bad news?

I was up under, doing an oil change. I've never seen an uncovered threaded hole like this.

Please identify what I am looking at here.

Everything has operated normally. Is there supposed to be a plug?
We have cummins isl 400. Also no Plug. Just looked
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Old 10-29-2009, 01:23 AM   #4
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Thanks everyone. I am to say the least, relieved!
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Old 11-02-2009, 03:00 PM   #5
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My previous coach had an ISC 330 and I almost had a stroke when I saw the "empty" hole like yours......my ISL 400 has the same thing. I agree..this is not a problem
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Old 12-25-2009, 01:03 PM   #6
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I believe they use this hole for engine removal.
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