RE: JetJoe OWNERS thread
 

http://www.6158.net/com/stks1/home.php works with IE but not with Google Chrome for me.

RE: JetJoe OWNERS thread
 

later day site was not accessible..then now is "on" for all web browser

RE: JetJoe OWNERS thread
 

I have a 1400 that does not run. Every time it ramps, the turbine does not accelerate properly. It surges as if its not getting a constant flow of kerosene. Ater it times out, it says " weak gas"/ Any suggestions on what is going on. I can get my values that the ecu is set to tomorrow or can someone with a good running 1400 give me their values and I will try to run it with the same.
Thanks, Steve

RE: JetJoe OWNERS thread
 

Try to start the turbine with no gas valve just go direct ,I start mine with no gas valve .look on you tube ,tooommmek and check mine Rafale go on jj 1400 now I have like 30h and no problems mine starter is wracked so I help with electric blower to start on hot days .

RE: JetJoe OWNERS thread
 

Thanks, I'll try that this evening.
Steve

RE: JetJoe OWNERS thread
 

The valve wont have anything to do with it, unless of course it is faulty, the 1400 like the small wrens are fussy on gas, they both benifit from a restrictor (cant post pic for some reason RCU playing up again) on the gas line for reliable starting.

Most of the time gas problems are too much gas, always start with little gas, I always see guys continually opening and closing the gas can valve shaking tin, turning it upside down all in the effort to get the turbine running.

All I do is open my gas valve 1 turn for my wren/jetjoes, (1 1/2 for my Jetcats) sit the can on the ground and wait for it to ramp up and it will do that everytime without fault.

This is what I do when setting one up for the first time.
I fit a restrictor as mentioned above in the gas line onboard the aircraft, I dont bother with a gas valve but do use a self sealing connector on the gas pipe.

To set the restrictor I close it completly then blow through it, and open it until I get a slight hiss.
I then check my gas can valve and open it just enough again so there is a slight hiss and note how much it is open.

Connect all up and try to start with the HDT connected, it should just pop then carry on to start, if not or get weak gas message then I open the gas can another 1/4 turn and try again. If it pops but the temp is not rising on the HDT then I open the can slightly until I see themps start to rise, once it starts I turn the gas off again at about 28K making note of how many turns open the valve is.

Next time and every time after that I open the gas can to the amount of turns put it on the ground and it always starts first time.

Over the weekend I done the same with a AMT Pegasus, no restrictor used but it starts now first go everytime.

RE: JetJoe OWNERS thread
 

My engine is very touchy on the starting gas as I found out and it's getting up past 100 degrees celsius and going into fuel ramp. After it starts to spool/ ramp up, it starts to surge and shoot a fireball out the back of it. It then shuts down and says " weak gas." It seems to me that the starting gas required is ok since it's getting up to ramping temperature.

RE: JetJoe OWNERS thread
 

Fireball says too much gas the HDT dosnt always tell the correct story,
very little gas is needed

RE: JetJoe OWNERS thread
 

I'm still trying to get my engine to start reliably. The original starter quit working so I replaced it with a motor I had lying around. After blowing several glow plugs, I turned the voltage down. I got it to run only after using my blower to help spool the engine after the start sequence was initiated as the motor does not seem to have enough power to do it on its own. The original motor wouldn't spool it up either although the battery was freshly charged. After it started running, the temps at full throttle ran around 750 degrees celcius. The idle is very inconsistent. It ranges from 43,000 to 67,000. Can someone with a smooth running engine post your parameters and give me some insight as to how to make my engine run good?
Thanks, Steve

RE: JetJoe OWNERS thread
 

If you look back through my posts you should find some parameters, you need the proper starter motor, also what pump are you using?

RE: JetJoe OWNERS thread
 

I'm using the pump that was supplied which is the Jet joe pump. I have a Flightworks pump that was used when I had a JJ1800 but was told that it couldn't be used because it would pump to much fuel for the 1400. I'll search to see if I can find your post on the parameters. Where can I find a good starter motor?
Steve

RE: JetJoe OWNERS thread
 

If it is the standard silver jetjoe pump then it is no good if it is the blue one (Fliteworks copy) then it will be ok

Best get one from Jetjoe I messed about at the start as well and ended up getting one from jetjoe

RE: JetJoe OWNERS thread
 

I use a flightworks pump and have no issue with it. The jet joe pumps are not as realiable and may not drop down to a consistent idle. Set the pump start point lower if it floods your engine.

Andy

RE: JetJoe OWNERS thread
 

<div style="margin: 0in 0in 0pt"><span style="font-size: 9pt">Steve,</span></div><div style="margin: 0in 0in 0pt"></div><div style="margin: 0in 0in 0pt"><span style="font-size: 9pt">You have too many variables going on here.You need to make sure you have a good pump and if you are using a starter, you have to have a known to be good starter. Obviously make sure your batteries are fully charged.

Flightworks pump for JJ is fine. Lower the pump start point. There are some other things to tweak but I do not have the parameters in front of me. The pump being bad will cause idle to go all over the map. The ECU figures out how to get back to idle by recording the electrical current applied. if you have a bad pump, the ECU goes back to the current value it has stored and has no idea what the RPM is/was.If your pump is not in good shape, the current needed to make the engine idle might be lower or higher from the last known value. So your idle winds up all over and probably won't drop down from 60 k or so.

The starter being bad if it does not spool up in proper response to the ECU will definitely cause your engine to over heat fast because the pump is cranking fuel but your motor is not spinning up fast enough in response. Your best bet (assuming you have the pump issue resolved) is to air start the engine with compressed air. The starter on these motors is a bit ofan Achilles heel to start so when you are working with other possible issues leave the starter out of the mix and I always go for air start.Once all the bugs are ironed out, then I try it with the starter. There are just too many other potential issues to let a starter become an issue.
</span></div><div style="margin: 0in 0in 0pt"><span style="font-size: 9pt">
Fix the pump issue, try to air start the unit and after it is running look at the temps as the motor increases thrust.If the temp is too high but reachesfull RPM, you may be able to get away with trimming the exhaust cone little by little to get the temps down.If the engine does not reach full RPM and you are overheating, then there is probably something else going on but try the obvious stuff first. </span></div><div style="margin: 0in 0in 0pt"></div><div style="margin: 0in 0in 0pt"><span style="font-size: 9pt">Andy
</span></div>

RE: JetJoe OWNERS thread
 

Thanks guys. I'll try the Flightworks pump and see what happens.
Steve

RE: JetJoe OWNERS thread
 

Steve,

How did you make out?

Andy

RE: JetJoe OWNERS thread
 

Hi guys,
Does the flightwork 400 good for the JJ3000 ?

RE: JetJoe OWNERS thread
 

The FW 400 should work this is the size turbine it was designed for.

RE: JetJoe OWNERS thread
 

Hi Andy, I got it to start using air. For some reason, the temps are fine now although I'm not complaining. I still have to order a new starter motor. I've replaced starter motors before and didn't have an issue with them spinning the compressor at enough rpms but I guess it does matter the type motor that is used in a Jetjoe.
Thanks for your help,
Steve

RE: JetJoe OWNERS thread
 

Steve,

Is there any drag in the motor bearings at all? It sounds like the motor is running fine which is a good thing.Did you try a new Joe starter or other? Any speed 300 motorwillfit.I have tried a lot of different motors but unfortunately they come and go so if you find any that work, buy2. Here are a couple below.The first one is an 8 dollar motor off tower.Itlooks identical to the jet joe motor and does work.The second one isa much beefiermotor butI do not know if it will deliver the RPMs needed.Thedifference is the 7.2 volts versus 6.0 but I would try this if I had it to try. Both have the spleened shaft you wantfor the securing the bendix clutch to.

This motor Ihave in one of my turbines:

http://www3.towerhobbies.com/cgi-bin...LXGLK3&amp;P=7

Here is another that may work... The dimensions are right but I have not tried this oneand noupper RPMposted.

http://www3.towerhobbies.com/cgi-bin...LXAHK6&amp;P=7

Let me knowhow this works.

If you want to use a JetJoe starter, I will have these in next week.

Andy
<span style="font-size: larger">JetJoe Authorized Dealer and Service
</span><span style="font-size: larger">www.crxdesigns.com</span><span style="font-size: larger">
</span>

RE: JetJoe OWNERS thread
 

Thanks Andy. I'll definitely give the first motor a try.

RE: JetJoe OWNERS thread
 

For anyone in the UK there is a new dealer for JetJoe and has all the parts etc listed on his website.
Might be a good idea to email them first as they seem to be just starting to bring in stock. See also they are showing the ATJ turbine.

[link=http://www.sportsturbine.com/acatalog/JET-JOE.html]Sports Turbine[/link]

RE: JetJoe OWNERS thread
 

anyone can give feedback about [link]http://www.sportsturbine.com[/link]??

i put the order but no reply to my mails...

RE: JetJoe OWNERS thread
 

Hi Guys :D

Haven't been in this thread for yonks - nor have I even started my Turbines for a couple of years now.

How's everything going in JJ-Land?

I notice that the www.jetjoe.com web page no longer works - have they gone under?

BJ:)

RE: JetJoe OWNERS thread
 

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