Today's Message Index:
----------------------
1. 12:08 PM - Low RPM (john.pearson757)
2. 12:30 PM - Re: Low RPM (A. Dennis Savarese)
3. 12:41 PM - Re: Low RPM (George Coy)
4. 01:00 PM - Re: Low RPM (john.pearson757)
5. 01:19 PM - Re: Low RPM (A. Dennis Savarese)
6. 01:24 PM - Re: Low RPM (john.pearson757)
7. 01:26 PM - Re: Re: Low RPM (A. Dennis Savarese)
8. 01:37 PM - Re: Low RPM (john.pearson757)
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 |
|
I was getting only 90% RPM and for other reasons, changed engines on my Skybolt.
I'm still getting 90% at best, more like 87 or 88%.
The carb is different and is rebuilt by Jill at M-14P.com so that can't be the
problem. The mag timing is spot on and checked and re-checked. The blade angle
is finer that standard. All linkages and travel have been checked. The tach
is accurate and actual RPM has been checked.
When I reach full RPM, there is still quite a bit of throttle left so I guess I'm
just pouring more fuel into the mix.
If anyone has suggestions or advice, thanks.
J.P.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=409860#409860
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 |
|
Do I understand you correctly? Same prop? Different engine? What prop
is on the airplane? If an MT 3 blade prop, does the prop governor have
the correct spring in it for the MT prop? Do check with MT regarding
the correct spring for the prop governor.
You said all linkages and travel have been checked. Have you verified
the carburetor throttle arm is at WOT when the throttle cable is pushed
fully forward? Do this by removing the throttle linkage from the
carburetor throttle arm, move the throttle arm on the carb to WOT. Now
hold the throttle linkage next to the throttle arm and then see where
the linkage is positioned with the throttle fully forward.
A. Dennis Savarese
334-285-6263
334-546-8182 (mobile)
www.yak-52.com
Skype - Yakguy1
On 10/4/2013 2:08 PM, john.pearson757 wrote:
>
> I was getting only 90% RPM and for other reasons, changed engines on my Skybolt.
> I'm still getting 90% at best, more like 87 or 88%.
> The carb is different and is rebuilt by Jill at M-14P.com so that can't be the
problem. The mag timing is spot on and checked and re-checked. The blade angle
is finer that standard. All linkages and travel have been checked. The
tach is accurate and actual RPM has been checked.
> When I reach full RPM, there is still quite a bit of throttle left so I guess
I'm just pouring more fuel into the mix.
> If anyone has suggestions or advice, thanks.
> J.P.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=409860#409860
>
>
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 |
|
Is the governor arm moving to the stop? Have you re adjusted the stop?
-----Original Message-----
From: owner-m14pengines-list-server@matronics.com
[mailto:owner-m14pengines-list-server@matronics.com] On Behalf Of
john.pearson757
Sent: Friday, October 04, 2013 3:08 PM
Subject: M14PEngines-List: Low RPM
--> <ssvpearson@hotmail.com>
I was getting only 90% RPM and for other reasons, changed engines on my
Skybolt.
I'm still getting 90% at best, more like 87 or 88%.
The carb is different and is rebuilt by Jill at M-14P.com so that can't be
the problem. The mag timing is spot on and checked and re-checked. The
blade angle is finer that standard. All linkages and travel have been
checked. The tach is accurate and actual RPM has been checked.
When I reach full RPM, there is still quite a bit of throttle left so I
guess I'm just pouring more fuel into the mix.
If anyone has suggestions or advice, thanks.
J.P.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=409860#409860
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 |
|
Thanks for the reply.
The prop is a 2 blade V530 - different governors. It is going to the stop.
I think the throttle is OK. When I reach 87%, I can push the throttle forward
quite a bit more.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=409865#409865
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 |
|
Was the prop governor swapped from the old engine to the new engine?- =0A
Dennis=0A=0A=0A=0A=0A________________________________=0A From: George Coy <
george.coy@gmail.com>=0ATo: m14pengines-list@matronics.com =0ASent: Friday,
October 4, 2013 2:39 PM=0ASubject: RE: M14PEngines-List: Low RPM=0A =0A=0A
=0A=0AIs the governor arm moving to the stop? Have you re adjusted the stop
?=0A=0A-----Original Message-----=0AFrom: owner-m14pengines-list-server@mat
ronics.com=0A[mailto:owner-m14pengines-list-server@matronics.com] On Behalf
Of=0Ajohn.pearson757=0ASent: Friday, October 04, 2013 3:08 PM=0ATo: m14pen
gines-list@matronics.com=0ASubject: M14PEngines-List: Low RPM=0A=0A--> M14P
Engines-List message posted by: "john.pearson757" =0A--> <ssvpearson@hotmai
l.com>=0A=0AI was getting only 90% RPM and for other reasons, changed engin
es on my=0ASkybolt.=0AI'm still getting 90% at best, more like 87 or 88%.
=0AThe carb is different and is rebuilt by Jill at M-14P.com so that can't
be=0Athe problem.- The mag timing is spot on and checked and re-checked.
- The=0Ablade angle is finer that standard.- All linkages and travel ha
ve been=0Achecked.- The tach is accurate and actual RPM has been checked.
=0AWhen I reach full RPM, there is still quite a bit of throttle left so I
=0Aguess I'm just pouring more fuel into the mix.=0AIf anyone has suggestio
ns or advice, thanks.=0AJ.P.=0A=0A=0A=0A=0ARead this topic online here:=0A
=0Ahttp://forums.matronics.com/viewtopic.php?p=409860#409860=0A=0A=0A=0A
=
Message 6
| 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 |
|
No, the governor wasn't swapped - new or different governor and I've played with
the stops with no result.
J.P.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=409867#409867
Message 7
| 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 |
|
Look at the things that are common to both engines since the symptom has no
t changed when you changed the engine.=0A- Prop=0A- Throttle Cable=0A=0AWha
t did you set the blade angles to on the V530?- ie:- How many degrees a
nd at what reference point on the blades?=0A=0AThe throttle cable sleeve mi
ght be slipping.- If it slips at all, you will not get full throw at the
carburetor.- That could be why you feel like you can push it further with
no increase in RPM. - Check to see if the sleeve is moving anywhere from
the throttle lever through the firewall and then to the carburetor.=0A=0AD
o you have a fuel flow instrument in the airplane?- If so, what is the fu
el flow at WOT on take off?- Normal for an M14P 360HP engine is between 3
7 and 41 gallons per hour.=0ADennis=0A=0A=0A=0A=0A_________________________
_______=0A From: john.pearson757 <ssvpearson@hotmail.com>=0ATo: m14pengines
-list@matronics.com =0ASent: Friday, October 4, 2013 3:00 PM=0ASubject: M14
"john.pearson757" <ssvpearson@hotmail.com>=0A=0AThanks for the reply.=0ATh
e prop is a 2 blade V530 - different governors.- It is going to the stop.
=0AI think the throttle is OK.- When I reach 87%, I can push the throttle
forward quite a bit more.=0A=0A=0A=0A=0ARead this topic online here:=0A=0A
http://forums.matronics.com/viewtopic.php?p=409865#409865=0A=0A=0A=0A=0A
=========================0A
===================
Message 8
| 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 |
|
Thanks Dennis,
I'll double check all those things. I agree, it has to be something like that.
J.P.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=409871#409871
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! --
|