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rvdave
Joined: 24 Jan 2009
Posts: 191
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 Posted: Fri Feb 06, 2015 8:05 am Post subject: Propellor clocking |
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Hartzell 2 blade, ring gear is at #1tdc comp stroke with gear showing #1tc on top rear at engine split line. Also on starter hole for front of gear. So I know the ring gear is on correctly question is prop. Don't remember during install if there was only one way it goes on or not . It currently sits at 11/5 o'clock from pilot seat. It got me thinking if it is correct ? Or should it be different so it stops at the 8/2 o'clock during shut down?
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Dave Ford
Cadillac, MI |
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jesse(at)saintaviation.co
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| Posted: Fri Feb 06, 2015 9:14 am Post subject: Propellor clocking |
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Usually there is a "0" on the ring gear and the prop has one stud that has no recess where it mates with the prop flange. If no "0", there are 2 threaded inserts on the prop flange that are shorter. It can only go on 2 ways and fully seat.
Jesse Saint
I-TEC, Inc.
jesse(at)itecusa.org
www.itecusa.org
www.mavericklsa.com
C: 352-427-0285
O: 352-465-4545
F: 815-377-3694
Sent from my iPhone
| Quote: | On Feb 6, 2015, at 11:05 AM, rvdave <rv610dave(at)gmail.com> wrote:
Hartzell 2 blade, ring gear is at #1tdc comp stroke with gear showing #1tc on top rear at engine split line. Also on starter hole for front of gear. So I know the ring gear is on correctly question is prop. Don't remember during install if there was only one way it goes on or not . It currently sits at 11/5 o'clock from pilot seat. It got me thinking if it is correct ? Or should it be different so it stops at the 8/2 o'clock during shut down?
--------
Dave Ford
RV6 for sale
RV10 building
Cadillac, MI
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=438115#438115
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rvdave
Joined: 24 Jan 2009
Posts: 191
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| Posted: Fri Feb 06, 2015 9:41 am Post subject: Re: Propellor clocking |
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Ok I know it had the O so it probably is on correctly but only could be 180 deg diff? Btw what makes it stop during shutoff at 8/2 o'clock? Haven't started mine yet so wondering.
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Dave Ford
Cadillac, MI |
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jesse(at)saintaviation.co
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| Posted: Fri Feb 06, 2015 11:13 am Post subject: Propellor clocking |
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Yes, it can only be wrong by being 180 off. I don't know on the 8/2 thing. I think it stops at any compression stroke, which is the same position on a 4-cyl, but not on a 6.
Jesse Saint
Saint Aviation, Inc.
352-427-0285
jesse(at)saintaviation.com
Sent from my iPad
| Quote: | On Feb 6, 2015, at 12:41 PM, rvdave <rv610dave(at)gmail.com> wrote:
Ok I know it had the O so it probably is on correctly but only could be 180 deg diff? Btw what makes it stop during shutoff at 8/2 o'clock? Haven't started mine yet so wondering.
--------
Dave Ford
RV6 for sale
RV10 building
Cadillac, MI
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=438117#438117
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bob.kaufmann(at)gmail.com
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| Posted: Fri Feb 06, 2015 1:01 pm Post subject: Propellor clocking |
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How can a prop stop 180 off if its a two blade prop?
Sent from my iPad
| Quote: | On Feb 6, 2015, at 11:10 AM, Jesse Saint <jesse(at)saintaviation.com> wrote:
Yes, it can only be wrong by being 180 off. I don't know on the 8/2 thing. I think it stops at any compression stroke, which is the same position on a 4-cyl, but not on a 6.
Jesse Saint
Saint Aviation, Inc.
352-427-0285
jesse(at)saintaviation.com
Sent from my iPad
> On Feb 6, 2015, at 12:41 PM, rvdave <rv610dave(at)gmail.com> wrote:
>
>
>
> Ok I know it had the O so it probably is on correctly but only could be 180 deg diff? Btw what makes it stop during shutoff at 8/2 o'clock? Haven't started mine yet so wondering.
>
> --------
> Dave Ford
> RV6 for sale
> RV10 building
> Cadillac, MI
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> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=438117#438117
>
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rene(at)felker.com
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| Posted: Fri Feb 06, 2015 1:33 pm Post subject: Propellor clocking |
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By numbering the blades 1 and 2 and using the engineering principles used in
the Turbo Encabulator (if you do not know what that is, look it up on
youtube).
Do not archive.
But to be serious.....I think they were refereeing to relative position in
degrees from top dead center and only using one blade as a reference.
Rene'
801-721-6080
--
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jesse(at)saintaviation.co
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| Posted: Fri Feb 06, 2015 3:17 pm Post subject: Propellor clocking |
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It can be installed 180 off. It doesn't really matter, but there is a "0" on the ring gear and a "0" on the prop hub that are supposed to line up. I can't imaging it would make any difference, though.
Jesse Saint
Saint Aviation, Inc.
352-427-0285
jesse(at)saintaviation.com
Sent from my iPad
| Quote: | On Feb 6, 2015, at 2:58 PM, Bob Kaufmann <bob.kaufmann(at)gmail.com> wrote:
How can a prop stop 180 off if its a two blade prop?
Sent from my iPad
> On Feb 6, 2015, at 11:10 AM, Jesse Saint <jesse(at)saintaviation.com> wrote:
>
>
>
> Yes, it can only be wrong by being 180 off. I don't know on the 8/2 thing. I think it stops at any compression stroke, which is the same position on a 4-cyl, but not on a 6.
>
> Jesse Saint
> Saint Aviation, Inc.
> 352-427-0285
> jesse(at)saintaviation.com
>
> Sent from my iPad
>
>> On Feb 6, 2015, at 12:41 PM, rvdave <rv610dave(at)gmail.com> wrote:
>>
>>
>>
>> Ok I know it had the O so it probably is on correctly but only could be 180 deg diff? Btw what makes it stop during shutoff at 8/2 o'clock? Haven't started mine yet so wondering.
>>
>> --------
>> Dave Ford
>> RV6 for sale
>> RV10 building
>> Cadillac, MI
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=438117#438117
>>
>>
>>
>>
>>
>>
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>>
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rvdave
Joined: 24 Jan 2009
Posts: 191
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| Posted: Fri Feb 06, 2015 4:27 pm Post subject: Re: Propellor clocking |
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I know there was an O on the crank flange and the ring gear which I lined up but just couldn't remember if there was more than one way to mount the prop to the crank flange. Probably what the indexing stud is for, aha moment.
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Dave Ford
Cadillac, MI |
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Kellym
Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ
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| Posted: Fri Feb 06, 2015 6:12 pm Post subject: Propellor clocking |
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On rare occasion, swapping blade 180 may help smoothness.
On 2/6/2015 4:14 PM, Jesse Saint wrote:
| Quote: |
It can be installed 180 off. It doesn't really matter, but there is a "0" on the ring gear and a "0" on the prop hub that are supposed to line up. I can't imaging it would make any difference, though.
Jesse Saint
Saint Aviation, Inc.
352-427-0285
jesse(at)saintaviation.com
Sent from my iPad
> On Feb 6, 2015, at 2:58 PM, Bob Kaufmann <bob.kaufmann(at)gmail.com> wrote:
>
>
>
> How can a prop stop 180 off if its a two blade prop?
> Sent from my iPad
>> On Feb 6, 2015, at 11:10 AM, Jesse Saint <jesse(at)saintaviation.com> wrote:
>>
>>
>>
>> Yes, it can only be wrong by being 180 off. I don't know on the 8/2 thing. I think it stops at any compression stroke, which is the same position on a 4-cyl, but not on a 6.
>>
>> Jesse Saint
>> Saint Aviation, Inc.
>> 352-427-0285
>> jesse(at)saintaviation.com
>>
>> Sent from my iPad
>>
>>> On Feb 6, 2015, at 12:41 PM, rvdave <rv610dave(at)gmail.com> wrote:
>>>
>>>
>>>
>>> Ok I know it had the O so it probably is on correctly but only could be 180 deg diff? Btw what makes it stop during shutoff at 8/2 o'clock? Haven't started mine yet so wondering.
>>>
>>> --------
>>> Dave Ford
>>> RV6 for sale
>>> RV10 building
>>> Cadillac, MI
>>>
>>>
>>>
>>>
>>> Read this topic online here:
>>>
>>> http://forums.matronics.com/viewtopic.php?p=438117#438117
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
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| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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Kelly McMullen
A&P/IA, EAA Tech Counselor # 5286
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