I thought that since diesel runs at no vacuum (compared to gasoline) the
coolant does not even get sucked into the combustion chamber. On the
contrary, leaky chamber will give you lots of exhaust going into the jacket
(due to higher compression) which in a VANAGON bieng rear engined traps the
gas preventing coolant circulation and causing chronic overheating.
No, this is not leaking.

Entity Terry Kay spoke thus:

> Believe it or not your eyes and nose will tell you.
>
> If the exhaust smells sweet---it's coolant