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My Jenson #10 Running Under Steam!
Posted by
RichSteamTx
on 03 Apr, 2022 10:47
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Well some good news and bad.The Good:I used office manila envelopes to make some gaskets for the boiler connections (sight blocks, whistle, steam line, & pressure valve). A tip from Mike I believe. Then I actually had some spare fiber gaskets for my D10 that I used for the Steam Line/Sight Block screws. I have one Phillips screw for a block (Mike is sending me some new screws and fiber gaskets when he sends me the new Smokestack). With that that dodgy work she is running!The Bad:No power to the lamp. The connection from the brushes to lightbulb is good, as I used alligator clips from a AA battery connected to the brushes, the light lights up. When I test continuity between the amateur in the brush screws, my digital multimeter beeps. 
When I first flipped on my power strip, I blew its pop fuse. The heater blanket had its wire insulation come loose/off and was causing a direct short. That was an easy fix. Cut off some bad wire, then I shored it up with electrical shrink tube. Good as new!I can't believe everything seems to be sealed and not leaking. I was sure I'd have leaks, especially around the sight glass. I guess the sun has to shine on a dogs butt ever once and awhile!Jensen 30's #10 - Work in Progress
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#1 Reply
Posted by
skeptic49
on 03 Apr, 2022 12:34
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Congratulations...runs great!
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well done Richard, sure didn't take you very long. runs like a champ & looks great !
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Thank you Bruce, I couldn't have gotten this far without your care package. Mike's package and Jenson's will be icing on the cake!
It really runs like a champ, fast little bugger.
Though try as I might I can't figure out why I am not producing power from the generator - I think it is dead.
1. supplying external power at the brushes makes the light turn on. So wiring at brushes and up to lamp are good.
2. get good continuity from shaft to bottom / screws of brushes.
3. the outside and inside generator wires are connected. I did lift up the outside wire a bit, to insure it wasn't touching the opposing polarity.
4. Looked all around the windings with my large work desk magnifying glass - not seeing anything wrong / nicked / mangled.
Really bummed about the power generator/light.
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#4 Reply
Posted by
RedRyder
on 03 Apr, 2022 14:38
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Congrats, Richard...!!!
Very well done!
Gil
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here some photos, not that I think it helps see the any problems.... but I could be wrong.
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so with the brushes pulled back, to take the wiring / lamp out of circuit - I am reading .002~.004 ohms and continuity (beep) goes off on my digital multimeter.
So short in the generator wiring?
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I've never encountered a Jensen generator that was dead, try taking the connecting rod off of the crank shaft (1 screw) & see if the magnet from the generator seems to have any pull, it should always want to settle with the 2 wired armatures against the magnet curves.
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interesting you bring up the magnets, as I been thinking about them. They don't seem to have hardly any magnetism - neither side will hardly hold a sewing needle anywhere on them (if at all). I'll do the screw test now but I don't think the magnets are strong enough to pull on it (if it can hardly hold a sewing needle).
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Darn it, its the magnets! I have all these little magnets on the outside horse shoe (now all my Polaroid's have fallen off my refrigerator) and I now have electricity / light!
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That whole horseshoe part is the magnet , they can be removed and re:energised from somebody probably in your home town, there are also hacks on YouTube to do it with a car battery I've seen awhile back when I had a week magnet.
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Do you mind listing the best way to get the horseshoe out? I spied some screws under the North and South poles of the magnet (so those are oddly placed). I am very cautious of messing it up while trying to figure out disassembly - meaning I don't want to F'it up trying to take it apart.
I did watch a YouTube about using strong neodymium magnets to re-energizing all kinds of magnets (including horseshoe ones).
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I have had some weak magnets on my Jensens, none were ever completely dead.
If you can’t find anyone local to re-charge your magnet, you can send it to me and I’ll do it. I built a magnet charger a number of years ago to repair magnetos for my antique gas engines.
To remove the magnet, you’ll have to remove the entire engine base from the wood board to access the brass screws underneath holding the magnet. Keep track of the small brass blocks and any paper shims to make sure they go back together exactly as they were so the clearance between the armature and the magnet remains the same. Once the magnet is loose, just slide it sideways to clear the armature and remove it. There is no need to remove the pole pieces from the inside of the magnet.
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Seem I am the lucky one, now it is dark I pulled all my little magnets off to see if the flickers at all, nope nada. I barely get .5v AC on my digital multimeter and with my little magnets on I get about 1.1v AC.
I did some searching for something in Austin for "re-charging / re-magnetizing magnets and came up with no hits. I did email kjmagnetics.com - they have a YouTube about doing this and they have ALL kinds of magnets. Some of their neodymium magnets have such a powerful pull you can't pull them apart if you put two of them together!
Thank you for those tips on how to get the horseshoe off.
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