Today's Message Index:
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1. 06:07 AM - cooling (BobbyPaulk@COMCAST.NET)
2. 02:41 PM - Re: cooling (jim)
Message 1
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All,
i have the 3300 in a 601 XL. it has the original low Ram Air Ducts with the plug
wires going thru the duct at the plugs. i have glassed in the dams between the
plugs and can move the temps around but can not get all of them in a safe operating
range. on the left side i got #2 down to 270 degrees but #4 went up to
340 plus. i put a longer dam at #4 and it came down to 285 BUT #6 went to 353
even at low power settings. i have installed the dams - ground off an 1/8" at
a time - removed them and put them back at different angles. nothing i do seems
to work. i can't help but think there is not enough air in the shallow duct
to cool all three cylinders on one side. the right side 3 cylinders seem to
be O.K.
has anyone had this problem and have you solved it ?? i know the prop is coming
up on the left side and down on the right side so it changes the angle of entering
air, but how do i get them all cool.
thanks for any help.
i have 85 hrs on it and still fighting CHT's
DO NOT ARCHIVE
Bobby
N131BP
Message 2
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Hi Bobby
If you can please give a call, I have some questions about your
installation so I can direct in the right direction on reducing your CHT=B9s.
Jim McCormick
Jabiru Pacific LLC
255 W Fallbrook Suite 202B
Fresno, Ca 93711
P 559.431.1701
F 559.233.3676
www.jabirupacific.com
On 7/23/09 5:59 AM, "BobbyPaulk@COMCAST.NET" <BobbyPaulk@COMCAST.NET> wrote
:
> All,
> i have the 3300 in a 601 XL. it has the original low Ram Air Ducts with t
he
> plug wires going thru the duct at the plugs. i have glassed in the dams
> between the plugs and can move the temps around but can not get all of th
em in
> a safe operating range. on the left side i got #2 down to 270 degrees bu
t #4
> went up to 340 plus. i put a longer dam at #4 and it came down to 285 BUT
#6
> went to 353 even at low power settings. i have installed the dams - groun
d off
> an 1/8" at a time - removed them and put them back at different angles.
> nothing i do seems to work. i can't help but think there is not enough ai
r in
> the shallow duct to cool all three cylinders on one side. the right side
3
> cylinders seem to be O.K.
>
> has anyone had this problem and have you solved it ?? i know the prop is
> coming up on the left side and down on the right side so it changes the a
ngle
> of entering air, but how do i get them all cool.
>
> thanks for any help.
> i have 85 hrs on it and still fighting CHT's
>
> DO NOT ARCHIVE
>
> Bobby
> N131BP
>
>
>
>
>
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