Interesting, Mike.
Mine is a Europa Classic with the 80hp 912. It does have the very small cooling intakes.
Since the oil cooler sits behind the port radiator, I was concerned that the extra ‘blanking’ created by the larger cooler might prove to be a problem with the water cooling but
that doesn’t appear to have happened. Before changing the oil cooler, I did try carefully straightening out all the bent and damaged fins on the radiator and cleaning out the bugs in the hope that that might have helped improve the airflow through the radiator
and on into the oil cooler. Disappointingly it didn’t seem to help at all, and my initial impression was that my radiator cleaning attempts may have made matters worse! Because of that, I did start down the road of looking at replacing the port radiator or
getting it re-cored to improve airflow – but I found both options would have been very expensive. I was very glad that none of that seemed to be necessary when the bigger oil cooler fixed the oil temp problem straight away and without seeming to create any
noticeable rise in the water temps (which had never been a problem anyway).
It seems to me that my ‘winter maintenance’ addition of the fire-sleeve to the oil lines was really the only change I had made from last year’s configuration that might have contributed
to the oil temp problem seen this year, so removing the sleeves was to have been my next course of action. However, now that the oil temps have come down so much more than expected, I’m planning to leave the sleeves in place so will probably never know what
they did or didn’t do to the oil temps!
I wonder if you really need any kind of oil cooler on the back of your radiator now that you have an oil cooler in its own, much better chin location? Could you try removing the
8-row one entirely from the radiator and seeing if you’d still have OK oil temps just using your large chin cooler?
The other wisdom I have picked up from many other useful contributors to this whole issue is the importance of air exit area, as well as to ensuring that all incoming air goes through
the radiators and not round their edges. When we were in the midst of our major oil overheating problems, and away from base on a very hot day, we managed to get by through packing washers under the bottom edge of the lower cowl to increase air exit area,
as well as using foil tape to seal the edges of the radiators to the cowl. That made just enough of a difference to keep us going and get us home!
If you need a 10-row oil cooler to play with then let me know, as mine is now redundant!
David
G-BWJH
From:
owner-europa-list-server@matronics.com <owner-europa-list-server@matronics.com> on behalf of Mike <mike@nyumba.co.uk>
Date: Wednesday, 8 November 2023 at 16:21
To: europa-list@matronics.com <europa-list@matronics.com>
Subject: RE: Europa-List: Re: Cooling impact of using firesleeve on oil lines
--> Europa-List message posted by: "Mike" <mike@nyumba.co.uk>
Hello David
I haven't been following this but looking at what you have done I am pleased
that it worked for you. I am unsure what engine you have but when I changed
mine from 80HP to 100 HP as I half expected I immediately encountered oil
cooling problems so fitted a chin inlet and located a larger oil cooler
there removing the one behind the port radiator. This helped but did not
solve the problem. At this point I fitted the 16 row as you have (in
addition to the chin radiator), this solved the oil issue but promptly gave
me water temp problems!
I have now changed the 16 row for an 8 row which has still cured the oil
issue and although the water temp issue is better it is not entirely cured.
I am now considering whether a re- core of the water radiators might help.
Just as a matter of interest I have not fitted firesleeve to any of my oil
lines thinking that this would result in the maximum radiated heat.
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Davidcripps
Sent: 08 November 2023 15:26
To: europa-list@matronics.com
Subject: Europa-List: Re: Cooling impact of using firesleeve on oil lines
--> Europa-List message posted by: "Davidcripps" <dpc@knightonweb.com>
Here are a couple of photos of the new 16-row Mocal oil cooler installed on
the back of the port radiator. Works a treat! PS. Glass wrap around exhaust
has now been removed. It was only there as a 'back-up' as new oil cooler is
much closer to the exhaust stub than before, but this hasn't seemed to cause
any problems with the oil cooling.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=511952#511952
Attachments:
http://forums.matronics.com//files/new_oil_cooler_mounted_and_installed_656.
jpg
http://forums.matronics.com//files/original_oil_cooler_mounted_on_radiator_8
83.jpg
http://forums.matronics.com//files/new_oil_cooler_mounted_on_radiator_179.jp
g
http://forums.matronics.com//files/new_oil_cooler_side_view_212.jpg
===========
st Email Forum -
pa-List">http://www.matronics.com/Navigator?Europa-List
===========
p; - MATRONICS WEB FORUMS -
ums.matronics.com
===========
p; - NEW MATRONICS LIST WIKI -
matronics.com
===========
p; - List Contribution Web Site -
p; -Matt Dralle, List Admin.
ps://matronics.com/contribution
===========
