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;amp;amp;amp;amp;amp;amp; Hot Air Engines
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(DIR) Return to: Restorations
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#Post#: 34302--------------------------------------------------
Jensen 76 Restoration
By: CaptCraig Date: January 29, 2021, 2:37 pm
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I have received my Jensen Model #76 from eBay today. The
gentleman that sold this did a great job packing it up and all
of the pieces were present.
I have started in on the restoration of this steam engine. I am
NOT a professional with steam engines, but I know I will enjoy
making this work and look good.
The first order of business is the steam tank. It appears that
there is a bunch of calcium inside of it. I have cleaned the
inside with PJ Blaster. The outside has scorch marks.
I used Scotch-Brite to clean it up.
#Post#: 34303--------------------------------------------------
Re: Jensen 76 Restoration
By: CaptCraig Date: January 29, 2021, 2:45 pm
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I removed the glass and the gaskets from the tank. The glass is
pitted from calcium or some other adhesive. I will order a new
glass and a complete gasket kit from Jensen on Monday. I did
clean up the ring a bit as it was rusty.
#Post#: 34304--------------------------------------------------
Re: Jensen 76 Restoration
By: classixs Date: January 29, 2021, 3:04 pm
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Some good progress made already, well done! :)
I´d suggest that you get hold of some polish, like Autosol,
Mothers Finest, Maas, or SimiChrome.
Personally i am much in favour of Autosol, but all of the above
will polish (and clean) a Jensen boiler to a very high finish.
When it comes to your sightglass, i´d suggest you save the money
for a new one, and simply throw the one you have in a glass of
ordinary household vinegar over night.
Tomorrow you can wipe that glass clean again, and if not a light
polish will remove any remaining deposits.
#Post#: 34306--------------------------------------------------
Re: Jensen 76 Restoration
By: CaptCraig Date: January 29, 2021, 3:20 pm
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[member=15]classixs[/member] Thanks for the tips! I am trying to
decide if I just want to buff this tank, or nickel plate it.
Buffing might be easier so I will give that a shot first. All of
the metal is pitted for some reason. I am going to assume that
the water that was used was fairly acidic or dust ate away at
it. Also, the glass looks as though it is chipped on 2 sides.
The fine people at Jensen have told me that they used to cut
them by hand, so they may not have been perfectly round at the
time of manufacturing. They have new ones that are better than
the originals. It is hard to tell what caused the chipped edges,
but I think I would like to replace it. I will save the old one
for nostalgia.
#Post#: 34308--------------------------------------------------
Re: Jensen 76 Restoration
By: classixs Date: January 29, 2021, 3:54 pm
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You won´t loose much by trying out a mere polishing first, as
you´d have to buff it anyway if planning to plate it.
The original glass you have there, has actually been cut nicer
than many i´ve seen.
#Post#: 34339--------------------------------------------------
Re: Jensen 76 Restoration
By: Nick Date: January 29, 2021, 6:22 pm
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Find some 0000 steel wool and if you have a Wal-Mart or Ace
Hardware near you, get some MAAS metal polish. It is near the
cleaning supplies (mops, floor/toilet cleaning) at Wal-Mart.
Otherwise look for Simichrome, they are pretty much the same
polish in different containers... I believe Harley stores carry
Simichrome. You will end up with a mirror finish.
I have also had good luck using the metal polish on the sight
glass itself after cleaning with vinegar. If you buy gaskets,
soak them in steam oil before installing. I would swap them out
with teflon/ptfe gaskets.
#Post#: 34345--------------------------------------------------
Re: Jensen 76 Restoration
By: St Paul Steam Date: January 29, 2021, 6:56 pm
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Many a time I have used a sharp razor blade to remove the scale
from a port hole window glass. If you pm me your address I will
send you a drop in set of Teflon gaskets.
#Post#: 34347--------------------------------------------------
Re: Jensen 76 Restoration
By: Jim Date: January 29, 2021, 7:00 pm
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Resto coming along nicely.
#Post#: 34349--------------------------------------------------
Re: Jensen 76 Restoration
By: Nick Date: January 29, 2021, 7:06 pm
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[quote author=St Paul Steam link=topic=3657.msg34345#msg34345
date=1611968186]
Many a time I have used a sharp razor blade to remove the scale
from a port hole window glass. If you pm me your address I will
send you a drop in set of Teflon gaskets.
[/quote]
I sent a set out to Montana earlier this week in an envelope,
waiting to see if they make the trip with cheap postage. What
thickness are you using? I use 0.025” as suggested by Rog, but
haven’t bought any since 2008 and am having trouble finding more
in that size...
#Post#: 34359--------------------------------------------------
Re: Jensen 76 Restoration
By: St Paul Steam Date: January 29, 2021, 8:05 pm
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[quote author=Nick link=topic=3657.msg34349#msg34349
date=1611968782]
[quote author=St Paul Steam link=topic=3657.msg34345#msg34345
date=1611968186]
Many a time I have used a sharp razor blade to remove the scale
from a port hole window glass. If you pm me your address I will
send you a drop in set of Teflon gaskets.
[/quote]
I sent a set out to Montana earlier this week in an envelope,
waiting to see if they make the trip with cheap postage. What
thickness are you using? I use 0.025” as suggested by Rog, but
haven’t bought any since 2008 and am having trouble finding more
in that size...
[/quote]
I use 0.030 , I prefer that thickness as it brings the ring out
more even with the front of the boiler. I have sent many a
gasket set through the mail with 0 issues , I just tape them in
rows so they don't gather in the corners.
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