Today's Message Index:
----------------------
1. 05:16 PM - High oil temperatures (David Harris)
2. 05:21 PM - Removing propeller (David Harris)
3. 05:31 PM - Re: Removing propeller (Stephen Beaver)
4. 06:20 PM - Re: Removing propeller (David Harris)
5. 07:45 PM - Re: Removing propeller (Stephen Beaver)
Message 1
INDEX | Back to Main INDEX |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | High oil temperatures |
We have been plagued with high engine oil temperatures for a long time. The symptom
is that all is well, and then quite quite quickly the temperature will go
up past the red line and stay there. To cut a long story short, we finally
found the cause - a blocked oil filter at the scavenge pump. The oil system has
two filters - a 3-stage mesh filter in the main oil line and a single mesh
filter at the scavenge pump entry. The guys who serviced our engine had forgotten
about this second filter and hadnt cleaned it for years. We cleaned it,
and the problem disappeared. The engine ran better too.
Message 2
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Removing propeller |
We need to remove the prop from our M332 engine. Weve managed to get the central
nut loose, but still cant get it off the drive shaft taper. We use an Avia
variable-pitch prop (electrically operated), This locates onto a taper on the
front of the crankshaft. It is supposed to work by undoing the nut, which then
comes up against a circlip within the front of the prop hub, and further undoing
is supposed to pull the prop off the taper. We have applied a lot of force
to this nut, but so far, to no avail. The prop hasnt been removed for at
least ten years, and has obviously got pretty well stuck on.
Any ideas?
Message 3
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Removing propeller |
Sorry, not with a VP prop. I have removed the fixed prop hub from the
crankshaft a few times using a 1 cm thick metal disk with holes drilled
for the prop bolts. The rear of the plate contacts the nose of the
crankshaft and I tighten the prop nuts one at a time in a what seems like
a reasonable sequence. It takes a lot of torque! I tighten the nuts about
as tight as I dare, apply a little heat to the hub/flange, tap it with a
brass hammer and eventually there is a loud bang and the whole assembly
pops off.
Not much help in your case, but it does give an idea of the force required.
Steve
On 5/3/14, 8:20 PM, "David Harris" <ddharris@ozemail.com.au> wrote:
>
>We need to remove the prop from our M332 engine. Weve managed to get
>the central nut loose, but still cant get it off the drive shaft taper.
>We use an Avia variable-pitch prop (electrically operated), This locates
>onto a taper on the front of the crankshaft. It is supposed to work by
>undoing the nut, which then comes up against a circlip within the front
>of the prop hub, and further undoing is supposed to pull the prop off the
>taper. We have applied a lot of force to this nut, but so far, to no
>avail. The prop hasnt been removed for at least ten years, and has
>obviously got pretty well stuck on.
>
>Any ideas?
>
>
>
>
Message 4
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Removing propeller |
Thanks for the quick response Stephen.
Unfortunately, the fixed pitch and VP prop fitment is very different.
I=92d love to be able to apply heat where it would do some good, but
it=92s completely inaccessible. For the present, I=92ve applied as much
tension as I can to the removal nut and left it, hoping that diurnal
temperature changes may have some effect. Last time we took the prop
off we did this, and had temporarily abandoned the effort while we went
and had a coffee. While we were drinking it, the prop came loose with
the loud bang you described.
I=92ve attached a couple of photos showing why we need to remove the
prop.
David :)
On 4 May 2014, at 10:01 am, Stephen Beaver <sbeaver@columbus.rr.com>
wrote:
<sbeaver@columbus.rr.com>
>
> Sorry, not with a VP prop. I have removed the fixed prop hub from the
> crankshaft a few times using a 1 cm thick metal disk with holes
drilled
> for the prop bolts. The rear of the plate contacts the nose of the
> crankshaft and I tighten the prop nuts one at a time in a what seems
like
> a reasonable sequence. It takes a lot of torque! I tighten the nuts
about
> as tight as I dare, apply a little heat to the hub/flange, tap it with
a
> brass hammer and eventually there is a loud bang and the whole
assembly
> pops off.
>
> Not much help in your case, but it does give an idea of the force
required.
>
> Steve
>
> On 5/3/14, 8:20 PM, "David Harris" <ddharris@ozemail.com.au> wrote:
>
<ddharris@ozemail.com.au>
>>
>> We need to remove the prop from our M332 engine. We=B9ve managed to
get
>> the central nut loose, but still can=B9t get it off the drive shaft
taper.
>> We use an Avia variable-pitch prop (electrically operated), This
locates
>> onto a taper on the front of the crankshaft. It is supposed to work
by
>> undoing the nut, which then comes up against a circlip within the
front
>> of the prop hub, and further undoing is supposed to pull the prop off
the
>> taper. We have applied a lot of force to this nut, but so far, to no
>> avail. The prop hasn=B9t been removed for at least ten years, and has
>> obviously got pretty well stuck on.
>>
>> Any ideas?
>>
>>
>>
>>
>>
>>
>
>
>
>
>
>
>
Message 5
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Removing propeller |
Poor Eagle. Best of luck with the repairs!
From: David Harris <ddharris@ozemail.com.au>
Subject: Re: Lom-List: Removing propeller
Thanks for the quick response Stephen.
Unfortunately, the fixed pitch and VP prop fitment is very different. I=A1=AFd
love to be able to apply heat where it would do some good, but it=A1=AFs
completely inaccessible. For the present, I=A1=AFve applied as much tension as
I
can to the removal nut and left it, hoping that diurnal temperature changes
may have some effect. Last time we took the prop off we did this, and had
temporarily abandoned the effort while we went and had a coffee. While we
were drinking it, the prop came loose with the loud bang you described.
I=A1=AFve attached a couple of photos showing why we need to remove the prop.
David :)
On 4 May 2014, at 10:01 am, Stephen Beaver <sbeaver@columbus.rr.com> wrote:
>
> Sorry, not with a VP prop. I have removed the fixed prop hub from the
> crankshaft a few times using a 1 cm thick metal disk with holes drilled
> for the prop bolts. The rear of the plate contacts the nose of the
> crankshaft and I tighten the prop nuts one at a time in a what seems like
> a reasonable sequence. It takes a lot of torque! I tighten the nuts about
> as tight as I dare, apply a little heat to the hub/flange, tap it with a
> brass hammer and eventually there is a loud bang and the whole assembly
> pops off.
>
> Not much help in your case, but it does give an idea of the force require
d.
>
> Steve
>
> On 5/3/14, 8:20 PM, "David Harris" <ddharris@ozemail.com.au> wrote:
>
>>
>> We need to remove the prop from our M332 engine. We=A9=F6ve managed to get
>> the central nut loose, but still can=A9=F6t get it off the drive shaft taper
.
>> We use an Avia variable-pitch prop (electrically operated), This locate
s
>> onto a taper on the front of the crankshaft. It is supposed to work by
>> undoing the nut, which then comes up against a circlip within the front
>> of the prop hub, and further undoing is supposed to pull the prop off th
e
>> taper. We have applied a lot of force to this nut, but so far, to no
>> avail. The prop hasn=A9=F6t been removed for at least ten years, and has
>> obviously got pretty well stuck on.
>>
>> Any - The Lom-List -->
>> http://www.matronics.========================http://www.matronics.com/co
====
>> ===========
>>
>>
>>
>> <http://www.matronics.com/contribution>
<http://www.matronics.com/Navigator?Lom-List>
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|