leaks oil at pulley

[charmdog]

Recently I "upgraded" my 1641 single relief engine. I added Empt oil pump, oil filter, 1 1/2 sump, oil filter and new Empi power pulley. Motor runs great! i.e.: no oil or vapor leaks......However when I turns off engine about a teaspoon of oil "squirts" out of pulley? That's it! leak stops... I know air cooled like to mark their territory......and a teaspoon isn't that much.......but everytime I turn off motor???......added: my new oil capacity (with filter, cooler, sump, and 10' of hoses) is now 7 quarts. Any advise or solutions? thanks much

[robcy04]

The pulley has a reverse screw ridge that pushes any oil back into the engine. I have found that many aftermarket pulleys have a low ridge that does not generate enough air movement to push the oil back into the case. I went through 3 different aftermarket pulleys until I found one that does not allow oil to escape behind the pulley.

Wow, 7 quarts. My external filter/deep sump has 5 1/4 quarts and it takes for ever to warm up, I started putting in only 4 quarts as that allowed a more normal warm up. Cold oil does not allow contaminates from blow-by to evaporate and they sit in your oil longer which ruins it.

[croSSeduP]

[madmike]

7 qts? should be about 5 qts
only fill to the first line on the dip stick
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'Black Ice'Drag Buggy 'Turbo'
Rail Buggy 1915 turbo
76 Drag/Street bug 2180cc 'Turbo' 11:85 @113 mph"If I go any faster I'll burn up the Hamster" ,gets 28 mpg. also 10/09/22 11.90 @115 mph
"If I'm ever on Life Support,UNPLUG Me, Then Plug me back In see if that Works"

[GARRICK.CLARK]

Take pulley off and measure case hole, it should be 50mm.
Sometimes it's been cut to 50.5 or 51mm.
If it's any of the 2 bigger numbers it will leak. There are oversize pulleys available.

[74 Thing]

Get a new pulley.

[mcmscott]

I just, litterlly min. ago, machined a pulley for a sand seal. I zero'd it using the snout that goes into the case, then used the front of a crankshaft cut just after #4 bearing and in the pulley then used the bearing surface to zero the pulley, I found the spiral snout section was not true to the crank by almost .020", this was also considered a "quality" pulley.
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68 Ghia
67 T-1
65 Notch
02 Mexican beetle
74 Thing
15 Long travel rail
07 Nomad
05 f-250

[charmdog]

Thanks for responses. I've purchased new pulleys. Also,,,,the grooves in the pulley's neck ARE working properly as stated! The oil ONLY leaks when I shut the motor off! A teaspoon in seconds and that's it. New ideas? thanks again

[mikemck]

I would double-check the 7 quarts.

I have an oil cooler and 1 1/2 quart thin sump. I don't think I can put in more than 5 quarts. I was surprised how little my Setrab oil cooler holds. Maybe you can check the website for your cooler to confirm how much to allow for it.

[charmdog]

Thanks for response and info. I drained 1 quart of oil. Now oil level is midway between lines on dipstick. Now when I turn off motor only 1/2 teaspoon leaks out with less pressure. next step I want to try original crank pulley.

[Howard 111]

Is the case vented?
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1973 Karmann Ghia
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http://www.thesamba.com/vw/forum/viewtopic.php?t=531270