Today's Message Index:
----------------------
1. 04:28 AM - Re: Oil problem (Thom Riddle)
2. 07:17 AM - Re: Oil problem (Pete Krotje)
3. 08:49 AM - Re: Re: Oil problem (pj.ladd)
4. 09:50 AM - Re: Re: Oil problem (Kayberg@aol.com)
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 |
|
Pat,
If your engine has the VDO oil pressure sending unit, that could be the problem.
They are notorious for low indication after some time in service. If you can
get your hands on an accurate mechanical oil pressure gauge to confirm the actual
oil pressure under same conditions, this should help you diagnose the source
of the low reading. I have both a mechanical oil pressure gauge installed
and the VDO sending unit giving its signal to the Grand Rapids EIS. The EIS oil
pressure reading is generally about 5-7 psi lower than the mechanical gauge.
--------
Thom Riddle
Buffalo, NY
Kolb Slingshot SS-021
Jabiru 2200A #1574
Tennessee Prop 64x34
A complex system that works is invariably found to have evolved from a simple system
that works.
- John Gaule
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=264093#264093
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 |
|
More likely the oil pressure sending unit
Pete
-----Original Message-----
From: owner-jabiruengine-list-server@matronics.com
[mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of pj.ladd
Sent: Sunday, September 20, 2009 4:23 PM
Subject: JabiruEngine-List: Oil problem
hi,
I run a jabi 2200 on a Kolb 3xtra microlight her in the UK and have a
problem
On starting the oil pressure goes at once to its proper place but over about
10 minutes it starts to decay. In half an hour it is right back at the start
of the yellow quadrant.
I am no mechanic but I think filter and pump as the first place to
investigate. Any comments? Only about 70 hours on the engine.
Cheers
Pat
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 |
|
If your engine has the VDO oil pressure sending unit, that could be the
problem.>>
Hi Thom.
Flew to a repairer about 30 minutes away this morning. The fix which he
suggested involved removing the filter and putting another washer behind the
spring which keeps the relief valve from opening. Thinking was that if the
spring is a bit weak the relief valve is opening at too low a pressure.
this seemed to make sense but as he didn`t have a replacement filter we
decided to postpone the job for a couple of days.
However while furkling about we noticed the the VDO sensor was just touching
the exhaust pipe so we moved the exhaust about 1/4 inch. Flying home the
pressure didn`t drop below 200. Has this fixed the problem?. maybe. Further
flying required and by the time I landed it had got so rough I did not want
to fly again so i wait for another window.
Thanks everyone for their input. It may be needed yet.
Cheers
Pat
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 |
|
Pat,
The advice you got from Pete at USJabiru was not from ignorance. It was
from the largest dealer of Jabiru engines and aircraft in the world.
The senders frequently have problems. Change washers only after you
change the sender.
Doug Koenigsberg
In a message dated 9/21/2009 11:50:02 A.M. Eastern Daylight Time,
pj.ladd@btinternet.com writes:
--> JabiruEngine-List message posted by: "pj.ladd"
<pj.ladd@btinternet.com>
If your engine has the VDO oil pressure sending unit, that could be the
problem.>>
Hi Thom.
Flew to a repairer about 30 minutes away this morning. The fix which he
suggested involved removing the filter and putting another washer behind
the
spring which keeps the relief valve from opening. Thinking was that if the
spring is a bit weak the relief valve is opening at too low a pressure.
this seemed to make sense but as he didn`t have a replacement filter we
decided to postpone the job for a couple of days.
However while furkling about we noticed the the VDO sensor was just
touching
the exhaust pipe so we moved the exhaust about 1/4 inch. Flying home the
pressure didn`t drop below 200. Has this fixed the problem?. maybe.
Further
flying required and by the time I landed it had got so rough I did not
want
to fly again so i wait for another window.
Thanks everyone for their input. It may be needed yet.
Cheers
Pat
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! --
|