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;amp;amp;amp;amp;amp; Toy Steam Gas &amp
;amp;amp;amp;amp;amp;amp; Hot Air Engines
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#Post#: 35605--------------------------------------------------
Re: Bargain 1/2 hp G. Sipp .... the good, the bad & the ugly
By: Jim Date: February 14, 2021, 5:06 pm
---------------------------------------------------------
The builder wasn't too great at drilling holes accurately
[attachimg=1]
#Post#: 35606--------------------------------------------------
Re: Bargain 1/2 hp G. Sipp .... the good, the bad & the ugly
By: RedRyder Date: February 14, 2021, 5:06 pm
---------------------------------------------------------
[quote author=Stoker link=topic=3787.msg35456#msg35456
date=1613230602]
[quote author=RedRyder link=topic=3787.msg35444#msg35444
date=1613187507]
Hi Daniel, a big CONGRATS on a fine acquisition for your
collection.
Perhaps a bit of timing will help. 60 to 80 psi ought to be
downright scary on one of these without a work load and without
a governor.
[/quote]
I couldn't even get the D-valve to seat, so all the air I was
putting in was just blowing out the exhaust!
Most, if not all of the issues with this engine will be revealed
in due course .... so stay tuned!
[/quote]
Hi Daniel, It is a bit clutzy but with a Sipp you can often lift
it up on edge from the flywheel side with air going in and
gravity in combination with air will seat the D Valve. Another
solution if the engine is well worn is to pull the outside part
of the D-valve rod away from the engine frame. If it is loose
enough it can force the D-valve onto the port face.
Gil
#Post#: 35607--------------------------------------------------
Re: Bargain 1/2 hp G. Sipp .... the good, the bad & the ugly
By: RedRyder Date: February 14, 2021, 5:17 pm
---------------------------------------------------------
[quote author=Jim link=topic=3787.msg35605#msg35605
date=1613343999]
The builder wasn't too great at drilling holes accurately
[attachimg=1]
[/quote]
I am wondering if the casting was a little off because the 3
holes at the top all line up near perfectly in relation one
another if you lay a straight edge on your screen at the bottom
of each hole. Or is that a camera created illusion?
#Post#: 35608--------------------------------------------------
Re: Bargain 1/2 hp G. Sipp .... the good, the bad & the ugly
By: Stoker Date: February 14, 2021, 5:27 pm
---------------------------------------------------------
[quote author=RedRyder link=topic=3787.msg35606#msg35606
date=1613344019]
[quote author=Stoker link=topic=3787.msg35456#msg35456
date=1613230602]
[quote author=RedRyder link=topic=3787.msg35444#msg35444
date=1613187507]
Hi Daniel, a big CONGRATS on a fine acquisition for your
collection.
Perhaps a bit of timing will help. 60 to 80 psi ought to be
downright scary on one of these without a work load and without
a governor.
[/quote]
I couldn't even get the D-valve to seat, so all the air I was
putting in was just blowing out the exhaust!
Most, if not all of the issues with this engine will be revealed
in due course .... so stay tuned!
[/quote]
Hi Daniel, It is a bit clutzy but with a Sipp you can often lift
it up on edge from the flywheel side with air going in and
gravity in combination with air will seat the D Valve. Another
solution if the engine is well worn is to pull the outside part
of the D-valve rod away from the engine frame. If it is loose
enough it can force the D-valve onto the port face.
Gil
[/quote]
Actually did try both of those techniques Gil, and I did find
the D-valve wedged between the jam nuts once I did pull the
cover off, so there was a clue.
#Post#: 35609--------------------------------------------------
Re: Bargain 1/2 hp G. Sipp .... the good, the bad & the ugly
By: Stoker Date: February 14, 2021, 5:35 pm
---------------------------------------------------------
[quote author=RedRyder link=topic=3787.msg35607#msg35607
date=1613344679]
[quote author=Jim link=topic=3787.msg35605#msg35605
date=1613343999]
The builder wasn't too great at drilling holes accurately
[attachimg=1]
[/quote]
I am wondering if the casting was a little off because the 3
holes at the top all line up near perfectly in relation one
another if you lay a straight edge on your screen at the bottom
of each hole. Or is that a camera created illusion?
[/quote]
The hole locations in the steam chest cover all seem quite
acceptable. The only issue really is the top center stud is
loose in its threads. The stud location is fine, it just droops
a bit, so I suspect that hole was wallowed out a little when
drilled, or perhaps it was originally started to be taped at an
angle and needed to be re-taped at a different alignment. I'm
not too worried about it, as it just needs to be lifted slightly
when putting the cover on, and it cinches up fine. I think the
old bit of copper wire trick will tighten it up just fine when I
go for final reassembly.
#Post#: 35728--------------------------------------------------
Re: Bargain 1/2 hp G. Sipp .... the good, the bad & the ugly
By: KNO3 Date: February 16, 2021, 3:32 am
---------------------------------------------------------
Hi, very interesting restoration project. You seem to have a
lot to correct that was badly done in the first place, but with
some effort it should turn into a beautiful steam engine.
I had a similar project (but on a much smaller scale), an
oscillating antique engine with many hand made parts that never
were right, and ended up having to build several new parts to
get it to a good running condition. But it was worthwhile and I
learned a lot in the process.
#Post#: 35740--------------------------------------------------
Re: Bargain 1/2 hp G. Sipp .... the good, the bad & the ugly
By: Woe is me Date: February 16, 2021, 11:22 am
---------------------------------------------------------
[quote author=Stoker link=topic=3787.msg35604#msg35604
date=1613343418]
So now to continue this tale of woe (sorry Tommy),
I must confess to being very glad to see some actual liquid oil
upon opening the steam chest, as up to this point all the
lubricant that I'd come across was either gummy or solid
varnish, so seeing some that could actually perform the proper
function, especially in such a critical place, was encouraging
and even a bit reassuring. At the same time I'll have to say
that upon opening up the valve linkage packing gland I found no
solid substance at all, where there should be a few winds of
graphite yarn or a Teflon O-ring or something of the kind, all I
did find was the most sticky, jet black, get on everything and
impossible to wash off, tar like compound. Alcohol doesn't touch
it, Acetone does little better, Gasoline sort of works it with a
lot of mechanical action and any soap short of Lava is hopeless!
Even GoJo had a tough time with it!!!
No problem Dan. For that black stuff, did you try Zippo lighter
fluid? Mom always had it in the house for when
we tracked in tar on the linoleum. Goof-off is pretty good stuff
too but I think you have to watch the paint with
that one.
#Post#: 35742--------------------------------------------------
Re: Bargain 1/2 hp G. Sipp .... the good, the bad & the ugly
By: tenniV11 Date: February 16, 2021, 1:08 pm
---------------------------------------------------------
Very exciting report. I have restored a few big model steam
engines and
have seen many issues. The Screw underside of the Cylinder may
be an
inspection hole for perfect adjusting the position of the piston
or it is just a
train hole if you storage for longer time. Often these old
engines have
all steel Cylinder, Piston, Connecting Rod and the rust is not
far away
if there is not a perfect maintenance after use. The Slider must
be free
floating and will be pressed to the surface by the steam - never
mount too
tightly. Im am sure, that the rough run comes from inaccuracy of
the Piston,
Piston rings, Cylinder, Stuffing box and Connecting Rod and
TIMING. All others
like bearings etc. are not so important. Straightforwardness is
the solution.
Hope you will get it to a smooth running - after all the engine
is in a good
condition to restore. The Cylinder cover has to be made from
scratch - that will
be an other nice job.
good luck, Arnold
#Post#: 35779--------------------------------------------------
Re: Bargain 1/2 hp G. Sipp .... the good, the bad & the ugly
By: Stoker Date: February 16, 2021, 6:18 pm
---------------------------------------------------------
[quote author=Woe is me link=topic=3787.msg35740#msg35740
date=1613496152]
[quote author=Stoker link=topic=3787.msg35604#msg35604
date=1613343418]
So now to continue this tale of woe (sorry Tommy),
I must confess to being very glad to see some actual liquid oil
upon opening the steam chest, as up to this point all the
lubricant that I'd come across was either gummy or solid
varnish, so seeing some that could actually perform the proper
function, especially in such a critical place, was encouraging
and even a bit reassuring. At the same time I'll have to say
that upon opening up the valve linkage packing gland I found no
solid substance at all, where there should be a few winds of
graphite yarn or a Teflon O-ring or something of the kind, all I
did find was the most sticky, jet black, get on everything and
impossible to wash off, tar like compound. Alcohol doesn't touch
it, Acetone does little better, Gasoline sort of works it with a
lot of mechanical action and any soap short of Lava is hopeless!
Even GoJo had a tough time with it!!!
No problem Dan. For that black stuff, did you try Zippo lighter
fluid? Mom always had it in the house for when
we tracked in tar on the linoleum. Goof-off is pretty good stuff
too but I think you have to watch the paint with
that one.
[/quote]
[/quote]
I did not try lighter fluid, and yes, when I was growing up my
household used lighter fluid as a sort of dry cleaning fluid for
various purposed, besides keeping the folks Zippos topped off. I
did eventually get it cleaned up using the methods and materials
I described, but it was a lot of mechanical wiping and re-wiping
to get it done. Of course I ended up wearing more than my share
along the way, so personal cleanup was a time consuming followup
challenge as well.
Here's the offending GUNK:
[attachimg=1]
#Post#: 35813--------------------------------------------------
Re: Bargain 1/2 hp G. Sipp .... the good, the bad & the ugly
By: Woe is me Date: February 16, 2021, 11:21 pm
---------------------------------------------------------
Dang, that is some nasty looking stuff.
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