Date: Tue, 20 Oct 1998 16:36:11 -0400
From: Bob Burkitt
Subject: GMC: Onan operation in cold weather
I guess that those of you in the warmer areas can tune this one out, but
in the past I have noticed a carburetor icing condition when running the
Onan 6KW generator in my '77 Palm Beach during winter months. Later Onan
units have a setting for cold weather which circulates exhaust manifold
heat over the intake during the cold months, but the dealers that I have
approached know of no such accessory for the earlier units such as ours.
Has anyone ever seen or constructed a device to prevent icing?
The icing will cause my generator to stop after a period of running,
then after a short while the heat will "soak" to the intake and the unit
can be restarted. I am tempted to try to construct some type of
removable cover that incorporates both manifolds but hate to reinvent
the wheel if it has already been done. Any thoughts?
Bob Burkitt Cincinnati '77 PB
I suffered the same problem with my 78 Palm Beach. I enclosed the air
filter with a can (I think it was a tennis ball container). I riveted a
nipple over a hole in the side of the can then connected a standard
aluminized hot air duct tube. The other end of the tube was placed under
the exhaust manifold so it would draw in warm air. Works like a charm.
Terry Harris
Jasper,Alberta
403-852-5404
tharris
From: Bob Burkitt
Subject: GMC: Onan operation in cold weather
I guess that those of you in the warmer areas can tune this one out, but
in the past I have noticed a carburetor icing condition when running the
Onan 6KW generator in my '77 Palm Beach during winter months. Later Onan
units have a setting for cold weather which circulates exhaust manifold
heat over the intake during the cold months, but the dealers that I have
approached know of no such accessory for the earlier units such as ours.
Has anyone ever seen or constructed a device to prevent icing?
The icing will cause my generator to stop after a period of running,
then after a short while the heat will "soak" to the intake and the unit
can be restarted. I am tempted to try to construct some type of
removable cover that incorporates both manifolds but hate to reinvent
the wheel if it has already been done. Any thoughts?
Bob Burkitt Cincinnati '77 PB
I suffered the same problem with my 78 Palm Beach. I enclosed the air
filter with a can (I think it was a tennis ball container). I riveted a
nipple over a hole in the side of the can then connected a standard
aluminized hot air duct tube. The other end of the tube was placed under
the exhaust manifold so it would draw in warm air. Works like a charm.
Terry Harris
Jasper,Alberta
403-852-5404
tharris
