I would think if your forward clutch was slipping enough to affect your
MPG, it would destroy itself in pretty short order.  Wait, I'm thinking of
the forward clutch in the tranny.  Is there a TC component called a
forward clutch?

Edward

> Searching for reasons for poor mileage in Mellow Yellow (1984 1.9l auto
> transmission), Dennis Haynes suggested I might check the torque
> converter for slippage.
>
> Using the procedure in Bentleys 37.16, my readings were high. The stall
> speed spec for this transmission type* is 2450 to 2750 rpm. I measured
> 2850, 2700, 2850 in three successive tests (allowing for cooling time in
> between), as indicated on my Tenma digital engine analyzer. The cheap-o
> analog tach on the dash read lower. So there might be a question of
> measurement accuracy here.
>
> According the Bentley's, if the stall speed is high, the test is to be
> done again in first gear. Here I measured 3000 rpm, still high.
> Bentley's tells us that in this case, "forward clutch is defective."
>
> First thing I'm going to do is see if I can get my mitts on a
> known-to-be-good tachometer to sort out possible instrumentation error.
>
> Second thing I'm going to do is toss out the following question: if the
> forward clutch is defective, how sucky is that?
>
> ====
> * I presume it is the NH type based on the model year of the van (1984),
> the NH came into play in 10/82 per page 37.1a. How does one i.d. the
> auto transmission?
>
> --
> Mike "Rocket J Squirrel" Elliott
> 71 Type 2: the Wonderbus
> 84 Westfalia: Mellow Yellow ("The Electrical Banana")
> 74 Utility Trailer. Ladybug Trailer, Inc., San Juan Capistrano
> KG6RCR
>