Today's Message Index:
----------------------
1. 03:48 PM - Re: Pushrod Oil Leak (carmine pecoraro)
2. 07:53 PM - Bad news from AOA (ROBINFLY@aol.com)
3. 08:39 PM - Re: Bad news from AOA (Peter and Dorothy Scott)
Message 1
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| Subject: | Pushrod Oil Leak |
--> Beech-List message posted by: "carmine pecoraro" <aeroauto@hotmail.com>
Sometimes stubbon leaks can be stopped by coating the new seals with fuel
lube prior to assembly.
cheers carmine pecoraro
>From: "Gary Strong" <gjstrong@comcast.net>
>Reply-To: beech-list@matronics.com
>To: <beech-list@matronics.com>
>Subject: Beech-List: Pushrod Oil Leak
>Date: Sat, 21 Feb 2004 22:21:05 -0600
>
>--> Beech-List message posted by: "Gary Strong" <gjstrong@comcast.net>
>
>I have a 1979 V35B with the IO520 engine with about 800 hrs on a factory
>rebuild. I have been leaking oil out of the pushrod tubes right around
>where the springs and rubber gasket/washer meet at the crankcase. Not
>tons of oil, but definitely enough to make the cowling & belly oily. At
>the annual a few weeks ago we replaced all the seals with Real Gasket
>Pushrod seals w/ tapered springs (supposedly the best seals out there).
>Bottom line is I still see some oil leakage, while definitely less than
>was there previously. I've only owned the aircraft 2 years so I don't
>know if its always been this way since rebuild. I heard that possibly
>the oil fill cap/seal could be bad and cause some case pressure so I
>replaced that as well with no result.
>
>My question - Are oil leaks around the seals/springs common on the
>IO520? It is fixable or something I have to live with? What's the
>"normal" amount?
>
>Thanks!
>
>Gary
>N77QQ - Minneapolis
>
>
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Message 2
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| Subject: | Bad news from AOA |
--> Beech-List message posted by: ROBINFLY@aol.com
Just received my AOA oil analysis report. My last report had a high iron
value (66 ppm), and this report the iron value is even higher at 75 parts per
million. AOA issued the following 4 recommendation codes:
117 iron appears high
129 possible cam/lifter wear
108 check oil filter for chips
135 resample 25 hours to monitor wear trend
This is a Continental E225-8 with only 322 hours on new Conti cylinders major
by a well-known shop 7 years ago. It runs great and burns 1 qt every 18 hr.
Last annual, all compressions were over 70.
Should I keep flying it and resample in 25 hours like AOA says or do
something now? If I should something now, what should I do?
Do you see a bottom end overhaul in my near future?
Thanks.
Robin Hou
Message 3
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| Subject: | Re: Bad news from AOA |
--> Beech-List message posted by: "Peter and Dorothy Scott" <winginit@jps.net>
Fly it for another couple hundred hours
----- Original Message -----
From: <ROBINFLY@aol.com>
Subject: Beech-List: Bad news from AOA
> --> Beech-List message posted by: ROBINFLY@aol.com
>
> Just received my AOA oil analysis report. My last report had a high iron
> value (66 ppm), and this report the iron value is even higher at 75 parts
per
> million. AOA issued the following 4 recommendation codes:
>
> 117 iron appears high
> 129 possible cam/lifter wear
> 108 check oil filter for chips
> 135 resample 25 hours to monitor wear trend
>
> This is a Continental E225-8 with only 322 hours on new Conti cylinders
major
> by a well-known shop 7 years ago. It runs great and burns 1 qt every 18
hr.
> Last annual, all compressions were over 70.
>
> Should I keep flying it and resample in 25 hours like AOA says or do
> something now? If I should something now, what should I do?
>
> Do you see a bottom end overhaul in my near future?
>
> Thanks.
>
> Robin Hou
>
>
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