(DIR) Return Create A Forum - Home
---------------------------------------------------------
Office of Steam Forum for Model &amp
;amp;amp;amp;amp;amp; Toy Steam Gas &amp
;amp;amp;amp;amp;amp;amp; Hot Air Engines
(HTM) https://officeofsteamforum.createaforum.com
---------------------------------------------------------
*****************************************************
(DIR) Return to: Restorations
*****************************************************
#Post#: 61319--------------------------------------------------
Restoration of Doll 365
By: Hassellbear Date: March 4, 2024, 10:10 am
---------------------------------------------------------
The restoration of the Doll 365 is now underway.
The 1st repair completed is the bent crankshaft. The shaft isn't
perfectly straight, but it's much better than before. Tapping
with a soft faced hammer did the trick. A purpose-built clamping
and gauging fixture made the job simpler. That fixture allowed
rotation of the shaft to gauge the runout, and tightly clamping
the shaft for tapping with the hammer.
(HTM) https://youtu.be/T5ybLjTpdMU
(HTM) https://youtu.be/iF8NPKiuTko
Shaft Clamping Fixture
[attachimg=1]
Happy Steaming :D
#Post#: 61321--------------------------------------------------
Re: Restoration of Doll 365
By: Steamloco Date: March 4, 2024, 10:18 am
---------------------------------------------------------
Much improved! At least as good if not better than new.
#Post#: 61328--------------------------------------------------
Re: Restoration of Doll 365
By: txlabman Date: March 4, 2024, 12:40 pm
---------------------------------------------------------
Well executed.
Congratulations.
#Post#: 61329--------------------------------------------------
Re: Restoration of Doll 365
By: skeptic49 Date: March 4, 2024, 1:09 pm
---------------------------------------------------------
Good repair!
#Post#: 61332--------------------------------------------------
Re: Restoration of Doll 365
By: Paula Date: March 4, 2024, 1:19 pm
---------------------------------------------------------
Excellent work! [attachimg=1]
Paula
#Post#: 61341--------------------------------------------------
Re: Restoration of Doll 365
By: Hassellbear Date: March 4, 2024, 2:00 pm
---------------------------------------------------------
Thanks for all of the encouragement. Half of the crankshaft
repair battle was mustering enough courage to hit an
irreplaceable part with a hammer.
Paula, you are very correct about how prone this Doll's
crankshaft is to bending because it doesn't have a shaft support
outboard of the flywheel. Plus, due to the crank supports being
a bit worn, there was enough play that the bend occurred in the
closest connecting rod journal. Going forward, this engine will
be gently handled and operated.
Happy steaming!
#Post#: 61531--------------------------------------------------
Re: Restoration of Doll 365
By: SteamTech Date: March 8, 2024, 2:22 pm
---------------------------------------------------------
i'M musically inclined. Brass hammer in time usually gets me
there. Good Job, looks great!
#Post#: 61538--------------------------------------------------
Re: Restoration of Doll 365
By: Hassellbear Date: March 8, 2024, 2:47 pm
---------------------------------------------------------
If all goes well, the Doll may be ready for steam later this
weekend or early next week.
The crankshaft end play was a bit much and has been reduced
using brass shim washers. I am now working to address excessive
connecting rod - rod journal clearance (worst one was 0.018 in.)
using inserts made from brass shim stock. A wrap-around insert
seems to work well and the shape locks into place in the rod and
doesn't spin in the rod.
After that, all that remains is a solder repair on the burner
and installing new seals on the boiler ports.
[attachimg=1]
[attachimg=2]
[attachimg=3]
#Post#: 61573--------------------------------------------------
Re: Restoration of Doll 365
By: D E Jones Date: March 10, 2024, 11:59 am
---------------------------------------------------------
Interesting idea on the rod bearing insert . Looks like a good
repair .
#Post#: 61581--------------------------------------------------
Re: Restoration of Doll 365
By: St Paul Steam Date: March 10, 2024, 7:03 pm
---------------------------------------------------------
nicely done, looks near dead level. :)
*****************************************************
(DIR) Next Page