'Roman,
Your situation with the crankshaft concerns me. From your description it sounds like your crankshaft is the victim of an improper bearing installation. If you look at the lands for each crank bearing, you will see a pin installed in the center of the mount area. Each bearing sleeve has a hole drilled off center to allow the bearing to be installed on the pin. This pin prevents the bearing from spinning which will cause the galling and excessive wear both on the bearing surface and the crankshaft surface. If the bearing is installed in such a way to push down the pin, it will certainly spin. Your crankshaft is basically scrap, so trying to grind out to a smooth surface will be next to impossible and is not worth the monetary effort.
I don't understand your comments about the wear on the counterweights so could you explain a bit more of what you have?
My recommendations are to replace the entire crankshaft with counterweight assembly, and procure new replacement bearing sets for both the crankcase and connecting rods. You should also have a zyglo inspection performed on the upper and lower crankcase half to insure that they have not undergone undo stresses from the spinning bearings. Just curious, how much metal did you find in the oil?
If you have any further questions, please feel free to contact me.
Mike Denest
----- Original Message ----
From: fairchild24_de
To:
fairchildclub@yahoogroups.com
Sent: Thursday, December 14, 2006 4:25:27 PM
Subject: [fairchildclub] Re: Ranger and Warner 145 Engine Mount Bushings
Hi Jamie
I´d be very interested in that bushings! We´re just overhauling our
200hp Ranger to get our plane flying again in spring! As we removed
the engine one of the mounts failed already, so we definetely have
to replace them!
In addition we need a servicable crankshaft as ours is worn at the
bearing shafts. It looks like one of the last owners ran it with low
or zero oil level what lead to feelable groves in the bearing shafts
and an eggshape up to .03mm. As far as I know there is no
maintenance instruction to repair this by grinding and using
oversize/undersize bearings.
Another problem we have are worn flyweights at the crankshaft, they
are too loose and moving too easily. Is there any possibility to fix
that!? Any tricks and tips welcome.
Greetings from Germany
Roman
www.fairchid24. de
--- In fairchildclub@ yahoogroups. com, "Jamie S. Treat"
wrote:
>
> Ranger and Warner 145 owners,
>
> I have a complete set of (4) Ranger and (4) Warner 145 Bushings
for
> sale at my cost. They are new stock manuf by Southland Manuf. Just
> require pressing into your mount. They are not cheap but will last
> many years longer than the 60 year old bench stock that we have
been
> purchasing. Warner 145 and 165 bushings are not available anymore.
>
> Contact me direct. The four 145 Warner bushings are ready to ship
> from my shop, the Rangers are at Southland.
>
> New Warner 165/185 bushings are also available from Southland
Maunf.
> They just finished a complete set for NC22036. Shipping to me this
> week.
>
> Excellant workmanship, highly recommend.
>
> What ever you do, do not throw away or damage the bushings steel
> inserts, they can be reused by Southland.
>
> Jamie S. Treat
> Aircraft Restoration & Repair
> 303-648-0103
>
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