Yep I typically saw around 27MP 2700 RPM. The control in the cockpit is fully advanced. So sounds like it could be that the timing was change slightly at the shop vs the oddball prop arm beingstalled improperly? Are you aware of any STC paperowk that states this is how the timing is set?
Thanks for the response!
Doyne conversion
Moderators: GAHorn, Karl Towle, Bruce Fenstermacher
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c170b53
- Posts: 2560
- Joined: Mon Apr 22, 2002 8:01 pm
Re: Doyne conversion
You might Pm Bruce Fenstermacher to sort out your membership status.
Jim McIntosh..
1953 C170B S/N 25656
02 K1200RS
1953 C170B S/N 25656
02 K1200RS
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GAHorn
- Posts: 21290
- Joined: Fri Apr 12, 2002 8:45 pm
Re: Doyne conversion
What do you mean by “timing”..? Timing usually refers to ignition timing such as the magneto advance, which is set by the engine mfr’r.
If your max RPM is not being achieved…that is probably a governor or prop-control rigging adjustment.
The fact that you might have a unique gov-control-arm which your mechanic “has never seen before” doesn’t mean much. The Doyn STC is a custom installation and may very well utilize a special part. Can you post a pic of the control arm..?? and do you have a part number or reference number for your prop gov and prop control cable..?
Here’s two pics found online of the B-2 gov with control arms. Does yours look anything like these?
If your max RPM is not being achieved…that is probably a governor or prop-control rigging adjustment.
The fact that you might have a unique gov-control-arm which your mechanic “has never seen before” doesn’t mean much. The Doyn STC is a custom installation and may very well utilize a special part. Can you post a pic of the control arm..?? and do you have a part number or reference number for your prop gov and prop control cable..?
Here’s two pics found online of the B-2 gov with control arms. Does yours look anything like these?
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'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
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cfzxo
- Posts: 137
- Joined: Sat Oct 19, 2002 3:29 pm
Re: Doyne conversion
Shanmoon, I have sent you a pm please email me . I have had this situation with the governor before
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