My question can perhaps be answered by other diesel
Vanagon owners, or those who have done a VW I4
conversion.

How exactly is the oil dipstick tube AFFIXED to the
engine block on a VW inline-4 (I suppose the
waterboxers may be done similarly)?

Is it threaded into the block, or is it a press-fit?
Are they prone to cracking from vibration?

My Vanagon bears a production date of 3/83, so was
probably one of the last diesel Vanagons produced.
Every other diesel Vanagon I've seen has its oil
dipstick integrated into the oil fill cap, and this is
what's shown in my Owners Manual. But mine, which I'm
sure is original, has its dipstick tube exiting from
the block in the usual place for GASOLINE I4
engines--down near the filter mount. From here it runs
straight upward and gently curves a full 90 degrees
rearward to end just behind the license-plate door,
from where one can grasp the dipstick handle.

I gave the engine compartment a good cleaning last
weekend, to try and track some oil leaks, and after
driving it to work and back I noticed fresh oil
spatters seemingly originating from the base of the
dipstick tube, where it exits the engine block. I do
not have any noticeable blow-by -- when I pull the
dipstick with the engine running (or open the oil cap)
I get no vapors or oil spattering out.

Any recommendations on fixing this leak?

Thanks in advance,

Jeffrey Earl
1983 diesel Westfalia "Vanasazi"

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