Today's Message Index:
----------------------
1. 04:32 AM - Re: TG-List: Vernitherm Question (FLYaDIVE@aol.com)
2. 04:35 AM - Re: Powder Coat for the engine mount (FLYaDIVE@aol.com)
3. 04:51 AM - Re: Powder Coat for the engine mount (Bradley Kidder)
Message 1
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| Subject: | Re: TG-List: Vernitherm Question |
--> TeamGrumman-List message posted by: FLYaDIVE@aol.com
In a message dated 8/20/03 1:59:10 AM Eastern Daylight Time,
steven.jackson14@adelphia.net writes:
> TG,
>
> I don't know if I even spelled it right, but my engine is an O-320B2B.
> During the engine teardown that's on-going, the nut was pulled off the
> accessory case and there was nothing behind the nut. No ball in the
> sleeve--nothing. Is this proper? How does the engine know when to send
oil
> to the cooler without this, or is it designed to always go to the cooler?
> My oil temps always seemed to take a while to warm up during run up--could
> this have been the culprit?
>
> Steven Jackson
> AA-1B
> N1434R
> L22
> Yucca Valley, CA
===============
Hi Steve:
I'm not sure exactly what you are referring to. You say NUT, what nut? A
Vernatherm is located on the back of the engine, on the accessory case, in the
housing that is either your Fine Oil Screen or Adapter housing for a remote Oil
Filter (ala-ADC, Oil Filter, or remote spin on filter). The Vernatherm has a
large Hex Head that should look like a light color of Brass or Aluminum.
There is also stampings on the head that give the temperature, 85 Deg C if I
recall correctly.
Now if this is what you are referring to, the Vernatherm has either a crimped
nut or a roll-pin staked nut at the end of a threaded shaft that is about a
8-32 thread.
If you have the crimped nut that it is your responsibility to inspect that
nut at EVERY oil change. There is an AD against the Vernatherm and crimped nut,
the Pin'd nut does not have that AD.
If this is the part you are referring to and the nut and seating dome are
missing then you are luck that you are doing a tare-down because those parts must
be floating around inside the engine. Not a good thing.
Can the Vernatherm be rebuilt? YES, but not by you or your A&P. The parts
must be replaced with new and there is a special cold height that must be
maintained to insure the proper length movement of the hemisphere so it will seat
properly against the engine case. The engine case seat should also be checked
and honed for proper fit.
You can replace the Vernatherm with either the old or new style Vernatherm.
Old, of course still keeps the AD requirement of inspection at every oil
change.
And as you say, your oil temps will take a bit longer to warm up. But the
more important part is they will run HIGH because the oil is NOT getting to your
oil cooler.
Have you found the missing parts? Have you replaced the Vernatherm as yet?
Are you interested in an Old style Vernatherm?
Barry
"Chop'd Liver"
Message 2
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| Subject: | Re: Powder Coat for the engine mount |
--> TeamGrumman-List message posted by: FLYaDIVE@aol.com
In a message dated 8/20/03 2:03:29 AM Eastern Daylight Time,
steven.jackson14@adelphia.net writes:
> TG,
>
> For anyone in the Southern Cali area, any recommendations for a shop to
> powder coat the engine mount?
>
> Steven Jackson
> AA-1B
> N1434R
> L22
> Yucca Valley, CA
=============
Steve:
I can tell you where NOT to go... General Magnaplate. Dollars to donuts they
will warp your mount and be two weeks past delivery time on returning it to
you.
Barry
"Chop'd Liver"
Message 3
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| Subject: | Re: Powder Coat for the engine mount |
--> TeamGrumman-List message posted by: Bradley Kidder <sparksnmagic@usa.net>
Barry is in touch with his feelings...
Bradley Kidder
N188FW AA-1 #124 "Hawg One"
NTSB / EAA / AOPA / AYA
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