----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]----
Glen.
I agree in that the rubber grommet is mainly there
to avoid metal to metal contact. It also gives a nice looking seal.
The strut - grease problem can only be explained
this way.
Someone managed to fill the strut with grease to
assure it's best operation. They did not know that the bushings inside are
oilite bushings and that grease is actually not what you want there. It's
oil you want. Oil that had been absorbed by the oilite material. One
doesn't need to replenish this at all, the bushings are usually soaked for
lifetime use. Fix would be to take the strut apart and clean.
The breather pipe used to end inside the cowling on
the first models, going straight down from the engine.
Since almost all engines are developing that
nasty blowby, the fix was to re-route the breather line over the engine going
down on the rear of the engine. It does not need to go outside the cowling, but
most installations are that way, because the blowby is still an issue and the
engine compartment is getting messy plus the belly of the plane. With the
breather line ending outside it's just the belly of the plane that is
getting messy.
My plane does not have the pressure
relieving notch and I never had a problem.
Hartmut
----- Original Message -----From: Jason J EllingsonSent: Monday, July 24, 2006 6:54 AMSubject: RE: [COUPERS-TECH] Cowling part----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]----The rubber ring... I can't answer that with authority, but I believe it is just for spacing and keeping metal against metal contact.I have no immediate ideas about your nose strut grease issue.The breather pipe should extend outside the cowling. There should also be a notch cut out of it inside the cowling. The notch is there in case the end gets frozen closed by moisture, which could result in pressure buildup in the crankcase. That can be seriously bad. I don't have them in front of me, but it should be in the parts, service, or other manual... If I can remember, I'll look for it tomorrow.- Jason
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Sunday, July 23, 2006 9:44 PM
To: [email protected]
Cc: Paul; Geoff (N23GD)
Subject: [COUPERS-TECH] Cowling part----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]----GangI have three questions:One, there was a rubber gasket around the headertank filler-neck, where in passes through the top of the cowling. I say "was" because I had a new cowling installed and the rubber part is no longer there! Can anyone tell me what is the purpose of this part (to keep the rain out, vibration dampening?) and where I can get a replacement?Two, there is dark Grey grease that collects on the chrome part of my nose strut after every flight. In fact, this grease seems to ooze out of the collar just above the chrome area of the strut, as well. I know we need some lubrication on that strut but this grease is really thick after every flight. Is this normal and if not, what is the cause?Three, there is a "breather" pipe that comes from the top on the engine, close to the front, and ends at the bottom of the cowling in the rear of the engine compartment. Is this pipe suppose to extend through the bottom of the cowling or terminate inside the cowling?Thanks for your help.Hope to see a lot of you at OSHKOSH!Glen Davis CFII
Grumman Tiger N70GD
1946 Ercoupe N3103H
www.ishootpictures.com
551 358 2600
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