My 144 has the rubber gasket and no aluminum trim. I
put the gasket in dry since I had recycled the glass
that was on before and it was a little scratched. I
wanted the option of reusing the gasket without any
trauma so I didn't use any anything.


The water can seep under the gasket on the top, flow
around the sides and puddle inside the cavity between
the gasket and frame or where the glass sits inside the
gasket. Mine leaks a tiny bit in heavy rain from
between the glass and gasket in one corner but not at
all between the frame and gasket. I think even with
goop in those cavities, unless there is perfect
coverage, there will still be small cracks that will
allow water to seep in.

I'm assuming that you've got the correct aluminum
trim that fits into the rubber gasket?

Is the car parked on a slope? I think the drains
are important in that they prevent too much water from
pooling between the gasket and the frame; if the car
is parked at enough of a slope the water might be able
to overflow under the gasket into the car if you've
only got one drain. Because the bottom edge of the
gasket covers the screws that hold the top of the
dashboard in place, I'm not sure you'd see water
leaking from between the gasket and frame since it
would have a direct path to the dashboard.

Does anyone know if the windscreen in a rubber
gasketed 140 is a different size than a butyl glued
screen? Also, is the glass for the later 240 the
same size as the earlier 240 glass? When I was
(re)installing the glass on my 140 I got the feeling
that it would seal better if it was a 16th or 8th
of an inch larger.

On my 145 I'm thinking of using the late 240 window
seal, but only if it has chrome trim.
chris