> A quick question here.  I was wondering just how often should the injectors
> be replaced on a 86 Vanagon with a 2.1 motor?  Is there a service life on
> these, or is it one of those things sort of like if it seems to work, keep
> your mits off?

This is all hearsay, but long ago I had a conversation with a Nissan
mechanic about the Bosch injectors in my 280Z, which are essentially
the exact same animal as used in the wasserboxer. His assertion was
that injectors are a "100,000-hour-plus" part-- in other words, 99.9%
of them will last longer than the vehicle they're in, and one in a
thousand or so will crap out at random for no discernible reason.
Assuming, of course, that they're fed a diet of clean fuel and don't
get gummed up or wedged open with carbon or random particulate matter
or something, they could probably run continuously for 20 years before
wearing out. So yeah, basically they're a "use until they break" part.

--
John Bange
'90 Vanagon - "Geldsauger"