JFS 100 # 2

[pitciblackscotland]

Hi all,
It's been a bit quite on this site so i thought i start a new topic. With all the other projects i have on the go this one i think will work out, this is the second JFS i have which is missing some bits and Pisces one of them is the straight splined shaft which would cost $400 + USD and some parts for the fuel pump as well. So i had a good chat with John W and we thought why can't we run the turbine with external oil and fuel pumps, as you can see in these pics it looks like it will run. I have a jacobs ladder for ignition 300 PSI 24 volt solenoid vale for air impingement start, two motor speed controllers for oil pump and fuel pump. I just done a test on the oil pump which is working very well just need to set up a high pressure air line and some electrical work and fingers cross that i don't fire it.

Cheers,
Mark

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[pitciblackscotland]

Accessories drive unit with oil screen tube

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[pitciblackscotland]

Top view of the drive unit the small hole on the left is were oil is pump through the oil screen tube and the oil drains back out onto theses slots and lubricates the bearings as well, the hole is ~3.5mm ID.

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[pitciblackscotland]

Machining up the oil inlet plug

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[pitciblackscotland]

Inlet plug with oil screen tube.

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[pitciblackscotland]

Side view i machine a grove for rubber o ring, the oil screen tube has a o ring as well.

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[pitciblackscotland]

Pumping ATF through at 20 PSI 1 liter in ~51 secs.

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[pitciblackscotland]

Now at 30 PSI 1 liter ~ 48 secs. Had no leaks from the o rings looking good, I had a chat to Dino from turbokart.com he said he ran oil pressure at 25 PSI. Also i found out the JFS will burn ~ 1 liter of flue in ~ 1 minute at full power.

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[racket]

Hi Mark

Looking like she's coming together nicely :-)

Cheers
John

[pitciblackscotland]

Hi John,
yep she's moving along nicely. I'll hold back on the oil cooler for the moment. Now there a burner drain valve that admits left over fuel when the engine is shut down so i will need to manually open that vale when i shut it down.

Cheers,
Mark..

[pitciblackscotland]

Hi all,
I have finish all the wring on the JFS and set up the air impingement system works perfectly Using 2,000 PSI tank pressure got her spinning up to around 26,000 RPM so should be good to light off. Just need to work on the fuel system.

Cheers,
Mark

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[pitciblackscotland]

PIC # 2 Also a video i made of the air impingement test.


youtu.be/XQg0WOijLn8

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[racket]

Hi Mark

Fast spoolup , nice :-)

Cheers
John

[pitciblackscotland]

Hi John,
Thanks, here is another video for your guys to look at. Just a walk around and test start on air.

youtu.be/_rs-vV-NlZg

Cheers,
Mark

BTW i am using 20,000 KPA tank pressure which is a bit under 3,000 PSI. I had a girl look

[racket]

Hi Mark

Thats a decent sized start bottle ;-)

Cheers
John