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Caterpillar 3208 Solutions This sub-forum is hosted by Mike Hohnstein who has been at this kind of thing for 50+ years now, guess I'm addicted. The saga has been all about progressively larger shop space since then. Honestly, never wanted to get into the CAT 3208's that were originally considered to be a throwaway engine but that's all that works in a FC in my world. Same thing with my Ford toter, that came with a NA, too much effort to hang in a 6, so been at it with the CAT V-8 for 20 years now. In reality you can get excellent life out of a CAT 3208 if it's built correctly. Post your questions about the CAT 3208 engines here and Mike will try to help you out.

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  #1  
Old 06-21-2018
JustLoafin's Avatar
JustLoafin JustLoafin is offline
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Default Black Spot under engine...is this a concern?

Just got an indoor space for her (yea!). Parked her after idling for just a few mins (perhaps 10), and noticed this

https://imgur.com/a/VjFR5Bb

I suspect that the hose is some sort of "vent"...perhaps for the crankcase?

The pic does not do it justice...it is a coal black spot.

She also puffs a good bit of dark exhaust (black/blue in color)

Just had a reman engine put in a few thousand miles back...is this something I should be concerned with?

Phil
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90 Wanderlodge 36
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Old 06-22-2018
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Mike Hohnstein Mike Hohnstein is offline
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Things like piston ring seal come to mind. I believe you might have an issue. That hose is the crank case vent, shouldn't mark it's place like that.
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Old 06-23-2018
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Thanks Mike...that is what I was afraid of...
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Old 06-24-2018
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Mike

After paying $30K for the remanufacture engine install last summer, still recovering from the recent bad news...


It makes sense...if the piston rings are not sealing, that would lead to extra pressure in the crankcase.


A few follow up questions:


What would typically cause this? I plan to contact the company I purchased the engine from monday to see what they say.

And on an SP36, is it possible to address this by dropping the oil pan and crank (so pulling the pistons out from below)?

Finally, what is the impact of running the engine under load for the short term...I suspect it is not a good idea...but is it really bad (like should I be thinking of getting a tow...I have to travel over a 1.5K' pass and some very hilly terrain to get to the CAT dealer).

Thanks Mike
Phil
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Old 06-25-2018
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Drive it over to the them, leave it.
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