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Mechanical Troubleshooting

Brand: Caterpillar - Model: CAT T50

Number of messages: 5

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sleepywheel
British Columbia, Canada

Anyone have problems with the engine losing oil through the crankshaft baffle into the torque converter housing? This model engine doesn't have a seal and uses a baffle system to keep the oil from leaking out. I've changed the PCV valve and the crankcase breather filter in the hopes that maybe crankcase backpressure was blowing the oil out with no luck. It's not overfilled with oil so I'm at a loss of what to do except pulling the engine out and disassemble for inspection. Anyone have any ideas?

Posted 18 Jan 2008 03:55 AM

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carl_v
Pennsylvania, United States

Have seen the symptom when truck run on ramps and grades.

Posted 22 Jan 2008 04:27 AM

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proshadetree
Tennessee, United States

If pcv is still run on #3 cylinder move it to port under carborator and try that I have had problems of fouled #3 plugs and oil use.Single cylinder pulses to much for pcv.#1 at flywheel side of motor #4 at fan side.

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"Work leads to profit, mere talk leads to poverty"

Posted 31 Jan 2008 10:35 AM

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Forkliftt
Louisiana, United States

I recall the rear seal on the 2.0 was called a "hydrodynamic seal" Not really a seal at all. High base pressure can push oil past it. I did an inframe in the field shortly after they came out in the late 80"s. It has free standing wet liners that are shimmed at the bottom to get the correct liner projection. I have one customer running the engine with over 15,000 HOURS! T30D. This is the exception, not the rule. EPS will not even offer this engine anymore the last time I asked.
Steve

Posted 13 Jul 2009 05:36 AM

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sleepywheel
British Columbia, Canada

I remember that when these units first came out, I was working for a Cat dealer at the time. There isn't a replaceable seal at the back of the crankshaft.
Peugeots are noted for leaking head gaskets and if you weren't careful removing the head, the liners would break loose and cause a lot more problems. I found that the breathers, hoses, and oil filler tube had a nice yellow foam coating plugging the openings. I guess they were preventing the PCV system from working properly and building up internal pressure which is causing the oil leaks.

Now try and get a Peugeot to start and run properly....................that's another can of worms.

Posted 13 Jul 2009 08:33 AM

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