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Yak 50

 
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wamflight(at)gmail.com
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PostPosted: Wed Oct 12, 2022 1:14 pm    Post subject: Yak 50 Reply with quote

Is this a standard size oil cooler for Yak 50? My oil temp. is always in the red. Removed, soaked in cleaner 2 days, pumped cleaner until showing clear. No change….

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richard.goode(at)russiana
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PostPosted: Wed Oct 12, 2022 11:30 pm    Post subject: Yak 50 Reply with quote

It is a common error to think that you can clean out a 40 year old oil cooler with solvent. Over the years the entire inside of the cooler will be covered with caked and hard oil residue, and no amount of solvent will remove it. The only way to do this is to go to a specialist company with big industrial ultrasonic cleaners which vibrate the oil cooler and these parts will then become dislodged. After that you then use your solvent. There is no other way that will work! Richard

RICHARD GOODE AEROBATICS
Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK
Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129
e-mail: richard.goode(at)russianaeros.com
www.russianaeros.com
WORLD LEADERS IN SOVIET & CHINESE RADIAL AIRCRAFT ENGINES
In partnership with Aerometal Kft, Hungary.

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wamflight(at)gmail.com
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PostPosted: Thu Oct 13, 2022 6:41 am    Post subject: Yak 50 Reply with quote

But, is this a standard size or is there a larger one. I have had comments saying both….. And is the current size sufficient enough to cool the oil?
Quote:
From what I could see on my bore scope, the inside was clean.

[quote] On Oct 13, 2022, at 2:34 AM, Richard Goode <richard.goode(at)russianaeros.com> wrote:



It is a common error to think that you can clean out a 40 year old oil cooler with solvent. Over the years the entire inside of the cooler will be covered with caked and hard oil residue, and no amount of solvent will remove it. The only way to do this is to go to a specialist company with big industrial ultrasonic cleaners which vibrate the oil cooler and these parts will then become dislodged. After that you then use your solvent. There is no other way that will work! Richard

RICHARD GOODE AEROBATICS
Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK
Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129
e-mail: richard.goode(at)russianaeros.com
www.russianaeros.com
WORLD LEADERS IN SOVIET & CHINESE RADIAL AIRCRAFT ENGINES
In partnership with Aerometal Kft, Hungary.

--


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dougsappllc(at)gmail.com
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PostPosted: Fri Oct 14, 2022 2:42 pm    Post subject: Yak 50 Reply with quote

Bill, 
The "fin area" on the one I have measures 9 1/2 X 4 3/4.
Doug Sapp
On Wed, Oct 12, 2022 at 2:18 PM Bill <wamflight(at)gmail.com (wamflight(at)gmail.com)> wrote:

Quote:
Is this a standard size oil cooler for Yak 50? My oil temp. is always in the red. Removed, soaked in cleaner 2 days, pumped cleaner until showing clear. No change….




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wamflight(at)gmail.com
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PostPosted: Fri Oct 14, 2022 9:42 pm    Post subject: Yak 50 Reply with quote

Send the pix again plz. Front & back

Quote:
On Oct 14, 2022, at 5:46 PM, doug sapp <dougsappllc(at)gmail.com> wrote:

Bill,
The "fin area" on the one I have measures 9 1/2 X 4 3/4.
Doug Sapp
On Wed, Oct 12, 2022 at 2:18 PM Bill <wamflight(at)gmail.com (wamflight(at)gmail.com)> wrote:

Quote:
Is this a standard size oil cooler for Yak 50? My oil temp. is always in the red. Removed, soaked in cleaner 2 days, pumped cleaner until showing clear. No change….






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