Genny cooling issues

[thomas_sorrentino]

Greg,

I'm coming into this thread late. But FYI I have the 12.5 Yanmar with the Kohler
also. My fan is mounted directly on top of my radiator (which is horizontally
mounted) and blows air from the fan through the radiator to the ground. Seems to
work well!

Tom Sorrentino
1987 PT38
Bedford Hills, NY



--- In WanderlodgeForum@yahoogroups.com, Greg Young wrote:
>
> Hi Everybody -
>
> Ernie and all - Thanks on the pointers on the Chrysler power seat controls.
Found one, and after a little plastic modification it fit and works perfectly.
Now we can move the co-pilot's seat again!
>
> This one's a little more critical. Late last week we had the generator worked
on after it completely stopped producing power - its rotor bearing was shot and
the stator and rotor were about to start arcing due to insulation wear. Had
them "washed, baked and dipped," and $1700 later are now getting plenty of
power. However, it seemed to be overheating still, as it did on last year's
long trip. We have a 1986 PT-40 with the side-mounted radiator and the Kohler /
Yanmar12.5K generator. So I've pulled the radiator and noted that the fan
wasn't getting any current from the generator. I bypassed the feed and found
that the fan blades were binding on the housing. I've now got the binding
fixed, so it will rotate freely - but two things still baffle me:
>
> 1. Is there a circuit breaker or fuse somewhere on the power feed to the fan
that could have blown because the fan blades were stuck? Any idea of where to
look for this?
> 2. Have noted that the fan was installed so that the airflow is from outside
to inside - pulling air through the radiator and exhausting it out through the
cage and to the center of the coach. Is this normal? Functional? Flipping the
fan blade doesn't help - it's got scooped fins and only collects air in one
direction. Thoughts? The guys who repaired the genny suggested I get a 12V
radiator fan at a local auto parts store, but then I'm faced with having that
switch on when the genny's running.
>
> Thanks!
> Greg Young
>
> 86 PT-40 Bluefire
> itching to get on the road.
>
> Each time you judge yourself you break your heart.
> -Kirpal Venanji
>