Office of Steam Logo_1

Author Topic: Jensen 95G  (Read 65 times)

Nick

  • Administrator
  • Hero Member
  • *****
  • Posts: 2643
  • Location: Minnesota, USA
    • Nick's Flickr Album
Jensen 95G
« on: December 10, 2019, 11:36:45 pm »
First run and leaks plenty of steam from the throttle, will have to fix that...

Sure has a nice gauge on it though  ;)  8)

https://www.youtube.com/watch?v=qS4bQHPibE4
Nick

St Paul Steam

  • Global Moderator
  • Sr. Member
  • *****
  • Posts: 1302
  • Location: St. Paul Indiana
Re: Jensen 95G
« Reply #1 on: December 11, 2019, 04:22:10 am »
wonderful engine Nick , love the whine up to speed, I wish we could create that sound all the time , but unfortunately it takes throttle up & down to make er' sing like that , I have always wanted one of those 95's , very nice plant for sure.
Bruce
St. Paul Indiana , USA

txlabman

  • Global Moderator
  • Sr. Member
  • *****
  • Posts: 1015
  • Location: Plano, Texas
Re: Jensen 95G
« Reply #2 on: December 11, 2019, 05:28:48 am »
Thanks for sharing a very nice video Nick.

The 95G is at the top of my Jensen Want List.

I am surprised about the throttle leaking.

I am interested how you plan on fixing it.

jkbixby

  • Full Member
  • ***
  • Posts: 621
  • Location: Ontario, Ohio
Re: Jensen 95G
« Reply #3 on: December 11, 2019, 05:56:28 am »
That's a nice engine Nick with a sweet sound - sure am sorry I didn't pull the trigger when they were available.
Regards,
Larry

classixs

  • Global Moderator
  • Full Member
  • *****
  • Posts: 797
  • Location: Jutland
    • www.SteamUp.dk
Re: Jensen 95G
« Reply #4 on: December 11, 2019, 06:29:03 am »
That is so cool Nick, thanks for sharing!

The 95 being such a young model, have quickly been turned into a relatively rare beast, with its removal from the Jensen productionline.

Now you just need to that valvestem lapped into the seat properly, as these steamhogs merrily will eat all that the standard 3" boiler is capable of throwing at it :)
WEBSITE: SteamUp
YOUTUBE: SteamUp

Nick

  • Administrator
  • Hero Member
  • *****
  • Posts: 2643
  • Location: Minnesota, USA
    • Nick's Flickr Album
Re: Jensen 95G
« Reply #5 on: December 11, 2019, 05:37:17 pm »
Thanks for sharing a very nice video Nick.

The 95G is at the top of my Jensen Want List.

I am surprised about the throttle leaking.

I am interested how you plan on fixing it.

All the Jensens seem to have a drip or two from the throttle, but this one really needs lapping. I filmed it outside this morning at -6F and you can really see the loss of steam in that video... will hopefully get it uploaded tonight...
Nick

Nick

  • Administrator
  • Hero Member
  • *****
  • Posts: 2643
  • Location: Minnesota, USA
    • Nick's Flickr Album
Re: Jensen 95G
« Reply #6 on: December 11, 2019, 05:38:21 pm »
That's a nice engine Nick with a sweet sound - sure am sorry I didn't pull the trigger when they were available.

That is so cool Nick, thanks for sharing!

The 95 being such a young model, have quickly been turned into a relatively rare beast, with its removal from the Jensen productionline.

Now you just need to that valvestem lapped into the seat properly, as these steamhogs merrily will eat all that the standard 3" boiler is capable of throwing at it :)

I really regretted not buying one from Jensen, that's why I drove to Chicago for this one!  :D
Nick

Nick

  • Administrator
  • Hero Member
  • *****
  • Posts: 2643
  • Location: Minnesota, USA
    • Nick's Flickr Album
Re: Jensen 95G
« Reply #7 on: December 11, 2019, 05:39:38 pm »
wonderful engine Nick , love the whine up to speed, I wish we could create that sound all the time , but unfortunately it takes throttle up & down to make er' sing like that , I have always wanted one of those 95's , very nice plant for sure.

It really sings when it's not belted up, unfortunately the gears have a bit of chatter which kind of ruins the whine. Sure is a pretty engine though
Nick

Nick

  • Administrator
  • Hero Member
  • *****
  • Posts: 2643
  • Location: Minnesota, USA
    • Nick's Flickr Album
Re: Jensen 95G
« Reply #8 on: December 12, 2019, 05:10:02 pm »
I am surprised about the throttle leaking.

I am interested how you plan on fixing it.

Doing some reading, it looks like two other Jensen 95's had very leaky valves on the steam line... Bad batch/quality control at the time these were made? As I said, this is by far the worst one I have...

This was posted by Jeff Bicht (I know mine did not come from his collection as the previous owner bought mine new)

Quote
I tried oil on the tapper of the steam valve but mine was leaking so bad it did not help what so ever as I tried this first. The condition of the steam valve on my 95G I have to tighten it so much or it will not hold pressure. Matter of fact I have to keep pushing down on the valve while it is running to help keep the pressure up do to it leaking so bad even after lapping it. I know all Jensen steam valves leaking but this is the worse I have ever seen or at least out of the 17 Jensen's I have.

And from our own John Reid

Quote
I did this on my 95G and really reduced the amount of steam that the regulator leaks, still drips a little though as that Boiler really generates the Steam.

The regulator is part of the Steam Line, there is a Stem which has a spring and a nut on one side of the Steam Line and a Handle on the other. In the area that is inside the Steam Line there is a hole that is positioned when the stem is twisted in order to allow steam to pass or not to pass on into the Steam Chest or engine.

I first removed the Steam Line from the Boiler and Engine and then removed the nut, washer, and spring, then I removed the stem from the regulator.

Then, I cleaned everything and applied a small amount of Valve Grinding Compound on the regulator, replaced the regulator and twisted the stem, around and around with pressure applied to it. Not too much though, all I was after was to make the surfaces mate better.

I then took the Stem, and the Steam Line and washed them thoroughly as one does not want abrasive getting into the engine as that would cause premature wear.

Once clean, I reassembled everything and was happy with the results. I do not think this should be repeated, it should only be done once as it does wear the surfaces down.

The compound and tools are downstairs and I am not able to go up and down anymore today, so sorry, no pictures
Nick

Junkologist

  • Jr. Member
  • **
  • Posts: 72
  • Location: USA
Re: Jensen 95G
« Reply #9 on: December 12, 2019, 06:27:05 pm »
wonderful engine Nick , love the whine up to speed, I wish we could create that sound all the time , but unfortunately it takes throttle up & down to make er' sing like that , I have always wanted one of those 95's , very nice plant for sure.

It really sings when it's not belted up, unfortunately the gears have a bit of chatter which kind of ruins the whine. Sure is a pretty engine though

Not much you can do about the gear noise. I tried different oils to quiet them and all I got was very brief results and a mess to clean up.
Iíll have to run my 95s again and see how my throttle valves are. I donít recall them leaking like yours does. A little lapping should fix you up though. They do make a fantastic whine when spooling up!
Mike

Check out my YouTube channel here: https://www.youtube.com/user/Cletrac

Nick

  • Administrator
  • Hero Member
  • *****
  • Posts: 2643
  • Location: Minnesota, USA
    • Nick's Flickr Album
Re: Jensen 95G
« Reply #10 on: December 12, 2019, 08:13:36 pm »
Not much you can do about the gear noise. I tried different oils to quiet them and all I got was very brief results and a mess to clean up.
Iíll have to run my 95s again and see how my throttle valves are. I donít recall them leaking like yours does. A little lapping should fix you up though. They do make a fantastic whine when spooling up!
Not too many people can say my 95's (plural)  ;)  :D

I didn't know if a very light grease or even Vaseline would help? Guess if they all do it, I'll leave mine alone and not have the mess to clean...

Yes mine really leaks, but the heater has no trouble keeping steam up  8)
Nick

Roscoe

  • Jr. Member
  • **
  • Posts: 143
  • Location: Northwest, Indiana
Re: Jensen 95G
« Reply #11 on: December 16, 2019, 09:25:39 am »
Love them 95ís, hope to have one some day.
John

Nick

  • Administrator
  • Hero Member
  • *****
  • Posts: 2643
  • Location: Minnesota, USA
    • Nick's Flickr Album
Re: Jensen 95G
« Reply #12 on: December 16, 2019, 10:40:32 pm »
Love them 95ís, hope to have one some day.

Thanks John, if you find one, don't let it get away!
Nick

 

January EOTM Winner:

Don's Bengs Modellbau "Donatus"

BENGS DONATUS