Vacuum leak near alternator?

[mandodave]

I was doing a smoke test checking for vacuum leaks. Pretty confused when I saw smoke coming out of or around the alternator. I can't figure why that would be. This is on a 2 liter fuel injected bus

Thoughts?

Thanks

[busdaddy]

Dipstick boot?
Thermostat pulley bolt?
Rocker cover?
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[Volswagon]

Cooling air is blown through the alternator via a boot connected to the fan housing.
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'75 Bus https://www.thesamba.com/vw/forum/viewtopic.php?t=697183&highlight=

[mandodave]

Thank you for making me think about the alternator cooler again. That now makes sense to me.. When I am blowing smoke in to the system it is eventually going through canister which is attached to the fan housing and makes its way to the alternator.

Thanks again

[Volswagon]

Probably going straight from the fan to the alternator.

_________________
I know the pieces fit, cos I watched them fall away.
Wanna hear God laugh? Just talk about your plans.

'75 Bus https://www.thesamba.com/vw/forum/viewtopic.php?t=697183&highlight=