[T3] Fwd: Type 3 Auto Oil Leak

Jim Adney jadney at vwtype3.org
Sat May 21 08:50:38 PDT 2022

Check the air filter. The oil should not be above the "step" in the bottom half 
of the filter housing. When you take the filter apart, never turn the top part 
upside down. If you do, oil will drip into the duct were it will get sucked into 
the IAD next time the engine runs.

You can check for oil collected in the IAD by opening the throttle and 
pushing a stick in there and down toward the bottom, sort of a dipstick. 
There should not be any oil pooled inside the IAD.

Make sure your breather stand nuts are tight, and check to make sure the 
breather box on top is also tight. On your '72, make sure the hose from the 
underside of the breather box to the rear of the IAD is connected and snug 
at both ends.

On 21 May 2022 at 7:30, William Jahn wrote:

> While I was checking to see why the engine had dropped 200 RPM yesterday
> ,( I described what I found in another post ). I noticed in only 1300
> miles since I cleaned the top on the engine case and replaced the runner
> boots and all vacuum line and fuel lines that the top on the case on both
> sides is wet with oil again. I even noticed the TPS bottom of the plastic
> cover had engine oil drops on it. I know I didn't overfill the oil bath
> plus the right side of the engine has no oil cooler and the case slopes
> down from the center on both sides and I retorqued all the top case half
> bolts and nuts. No idea where the oil is coming from. I don't see any oil
> squirting oil while running hot or cold. I know the torque converter  fan
> blows air at the top of the engine case which might spread it and the only
> place it can leak oil on the top is the cooler . I know when I rebuilt it
> in 1997 I sealed the case halves properly.   All I can do is remove the
> oil bath and see what I can find  and wipe it off .

Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA

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