300Tdi oil leak? - Defender Source
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  #1  
Old July 23rd, 2006, 02:37 PM
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George Kase
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300Tdi oil leak?

I knew it would be too much to hope for to have a leak free engine just because it was rebuilt...anyway, it appears to be coming from the right side (US passenger side) and we thought it was the poorly mounted gasket under the oil filter adapter(or mounting) plate, which was poorly mounted and the mounting surface was not flat...but having sorted that...it stills leaks from that general area...the oil lines are all checked and solid...valve cover looks good...pan looks OK...is there a "look for this first" kind of leak on these engines?
George
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  #2  
Old July 24th, 2006, 10:50 AM
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jim pendleton
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oil pressure sensor?
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Old July 24th, 2006, 11:21 AM
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George Kase
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Nope...that looked dry...thanks for the suggestion though...I just ordered the oil return hose that goes into the breather valve and also will replace the vacuum pump gasket...we'll see...
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Old July 24th, 2006, 11:22 AM
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Check the hoses and gasket on the oil cyclone. The hose clamps there tend to gte forgotten easily and it will then druel oil down the mid RH side of the engine. They are also easy to knock off when yuo are doing the wiring and such.
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Old July 24th, 2006, 11:30 AM
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George Kase
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Hmm...what's an oil cyclone?
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  #6  
Old July 24th, 2006, 11:43 AM
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Don't all rovers leak? I thought it was par for the course. I always heard rovers are engineered to a total loss fluid system or something. Maybe that's a bunch of crap, but that's what I always heard.
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Old July 24th, 2006, 11:46 AM
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George Kase
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Call me old fashioned...but, I don't think it should leak if it's new or recently rebuilt...means it wasn't put together right or the parts were not right, or something...
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Old July 24th, 2006, 11:48 AM
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I have a 300 Tdi. And you should see my driveway.
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Old July 24th, 2006, 12:13 PM
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A new or recently rebuilt 300 Tdi won't leak.

The oil cyclone is the small black canister on the RH side of the engine, near the valve cover between cylinders 2 and 3. It has 2 hoses going into it and is bolted to the head with 2 bolts. They are prone to leak on new installs as the hose clamps get forgotten. The oil leaks down the motor and start to appear as leaks coming from the vac. pump gasket and such. Trace the oil upwards and make sure the cyclone is leak free.

I've even seen a few of them broken on installs as people get a little agro with the engine lift chains and the cyclones are easy to snap and crack.

Not saying it is the cuase, just a good easy place to look beofre you start tearing larger things off the engine.
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