RE: OS 1.60 woes (with perry pump even)

RE: OS 1.60 woes (with perry pump even)
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RE: OS 1.60 woes (with perry pump even) - 12/31/2004 11:51:14 PM

fredycompean

Posts: 215
Joined: 4/11/2004
From: Santa CatarinaNuevo Leon, MEXICO
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Can I calculate the real altitude by calling the Airport to get the Density Altitude?

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RE: OS 1.60 woes (with perry pump even) - 1/1/2005 1:19:39 AM

JoeAirPort

Posts: 7302
Joined: 8/11/2003
From: Milwaukee, WI, USA
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Wow this thread is way off topic. I wonder if he ever got his OS 1.60FX and his Perry pump running?

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RE: OS 1.60 woes (with perry pump even) - 1/1/2005 1:52:46 AM

fredycompean

Posts: 215
Joined: 4/11/2004
From: Santa CatarinaNuevo Leon, MEXICO
Status: offline

It's not the first O.S. 160 topic that takes off this way. It's just a motor that has a lot to learn and share about it. Hope that it remains long enough to help other guys with this motor. I think the information that has been posted here until now applies for a lot of people.

thanks a lot to all of you that have contributed to my problem and I promise I'll post a complete review of MY experience after trying some of the suggestions posted here.

I already have a small video (not edidted yet) and I will take more so we can really see the results.

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RE: OS 1.60 woes (with perry pump even) - 1/1/2005 2:05:52 AM

Schpankme

Posts: 267
Joined: 6/6/2004
From: Naperville, IL,
Status: offline

Install the perry Pump and follow the diagram provided.

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RE: OS 1.60 woes (with perry pump even) - 1/1/2005 7:45:03 AM

PlaneKrazee

Posts: 3583
Joined: 5/15/2002
From: Westerly, RI, USA
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< Message edited by Skypilot_one -- 1/2/2005 4:23:08 PM >

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RE: OS 1.60 woes (with perry pump even) - 1/1/2005 3:54:00 PM

dlucas48

Posts: 56
Joined: 11/14/2002
From: Crosby, TX, USA
Status: offline

Happy New Year all! Well,I had a rough week, bronchitus from Xmas visiting, and then a sprained ankle. Anyway, I went in 3 turns on the pump and ran it on the ground yesterday. NV ended up at 5/8ths, and I tried setting the half-throttle position with the low-end NV instead of setting the idle and transition by that NV, because the idle and transition were good at all settings, and I could fine-tune the half-throttle mixture exactly. Also checked the half setting by pinching the line. It ran very well! This was without the cowl, but I've REALLY opened it up, and it should be fine. I do think that was the problem, not enough air. That was the only real change between this plane and the other. When I put the cowls side-by-side and compared them, I could see the differences. Will let ya know how it goes in the air, soon as I can hobble out there.
Thanks, all!
Dennis

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RE: OS 1.60 woes (with perry pump even) - 1/1/2005 7:55:51 PM

JoeAirPort

Posts: 7302
Joined: 8/11/2003
From: Milwaukee, WI, USA
Status: offline

So don't you think it was because you turned the pump in 3 turns rather than the open cowling? Turning the pump way in is what made mine run so well.

quote:

ORIGINAL: dlucas48

Happy New Year all! Well,I had a rough week, bronchitus from Xmas visiting, and then a sprained ankle. Anyway, I went in 3 turns on the pump and ran it on the ground yesterday. NV ended up at 5/8ths, and I tried setting the half-throttle position with the low-end NV instead of setting the idle and transition by that NV, because the idle and transition were good at all settings, and I could fine-tune the half-throttle mixture exactly. Also checked the half setting by pinching the line. It ran very well! This was without the cowl, but I've REALLY opened it up, and it should be fine. I do think that was the problem, not enough air. That was the only real change between this plane and the other. When I put the cowls side-by-side and compared them, I could see the differences. Will let ya know how it goes in the air, soon as I can hobble out there.
Thanks, all!
Dennis

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RE: OS 1.60 woes (with perry pump even) - 1/1/2005 8:20:11 PM

Cyclic Hardover

Posts: 7238
Joined: 5/7/2002
From: New Mexico, USA
Status: offline

No problem, I have a density Altitude Calculator I can get to you somehow. All you need is Field Elevation, Temperature, Altimeter and Dew Point. Send me your email in a PM and Ill send it back hopefully as an attachment

Also I saw a guy today with a 160 in a Dave Patrick Extra running a 16/8 apc. Went real good and no pump

quote:

ORIGINAL: fredycompean

Can I calculate the real altitude by calling the Airport to get the Density Altitude?

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RE: OS 1.60 woes (with perry pump even) - 1/1/2005 8:35:11 PM

Ed

Posts: 1810
Joined: 12/5/2001
From: Bemis, , USA
Status: offline

Density Smensity ....

Mine runs real good too; no pump, medium size fuel tubing, Bisson Pitts muffler both stacks open, but I fly scale.

However, if I stood my plane on it's tail, and tried to imitate a helicopter, I might have those kinds of problems too.

< Message edited by GeeBeeJim -- 1/1/2005 10:54:02 PM >

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Post #: 59

RE: OS 1.60 woes (with perry pump even) - 1/1/2005 8:51:12 PM

fredycompean

Posts: 215
Joined: 4/11/2004
From: Santa CatarinaNuevo Leon, MEXICO
Status: offline

I have a tuned pipe for a .60 size engine and one for a .46 size. could those be used in the 1.60? Would it help the presurizing of the fuel tank.

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RE: OS 1.60 woes (with perry pump even) - 1/2/2005 2:33:02 AM

dlucas48

Posts: 56
Joined: 11/14/2002
From: Crosby, TX, USA
Status: offline

I had a mix of problems. It started when I would invert, and it would lean and die, as if the clunk was stuck. But it wasn't. The brass tube I used in the tank (came with the Katana if memory serves) was so hard that I had to heat it to bend it, and I think it cracked and sucked air. Hence, the new liner. I always flew with the cowl on, and the power would sag. But with it going dead inverted I was chasing two problems at once. One or the other got me almost every flight and caused a deadstick.The pump adj.? All I know is I was at 3/4 turn, now I'm at 5/8, so does not seem like a big difference. The reason I always flew with a cowl was it always ran great on the ground with it on, and I've got it set up so tailheavy already I was afraid to fly without it. In hind sight, I should have known I had more than one problem and tried to solve them one at a time, but I tend to spend much of a flight inverted<G>. Seems obvious now but the power fading during a flight is overheating. Why? That's the Tower Hobbies $150 question! (new liner, piston, ring, and head gasket. I would have bought a new motor, but I have a set of $80 ceramic bearings in this one, they are awesome!) Comes down to too lean or not enough cooling air. Thanks.

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RE: OS 1.60 woes (with perry pump even) - 1/2/2005 3:31:13 AM

PlaneKrazee

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From: Westerly, RI, USA
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It sounds like you richend the low end to get the midrange right, that will stop the engine from overheating in the air. Proper airflow over the engine is always a big help too. I make sure all the air that goes in the cowl has to go over the cylinder and head not around it. The muffler will be ok with whatever air comes across it after having gone thru the fins of the cylinder. I always block off the left opening in the cowl and paint it black. If you need a 1 to 3 ratio of inlet to out no sense in having a inlet hole that does nothing but require a larger outlet.

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RE: OS 1.60 woes (with perry pump even) - 1/2/2005 3:57:42 AM

dlucas48

Posts: 56
Joined: 11/14/2002
From: Crosby, TX, USA
Status: offline

I have taken you guys recomendations and have blocked the inlet on the dead side. Question-Have you found it more beneficial to open the cowl around the head (on the side of the cowl) or mainly let the hot air out the bottom? I used to just make a hole for the igniter, but on this plane I have now opened up all around the head, even though it does not protrude. That is the hottest area, yes? Have not got one too cool yet. (Texas)

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RE: OS 1.60 woes (with perry pump even) - 1/2/2005 5:03:27 PM

JoeAirPort

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From: Milwaukee, WI, USA
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There is some turbulent air that cools the top of the head if you open up the cowling on the side. In the future you can always avoid that by gluing baffles inside the cowling on the engine head side. That forces air into the head's cooling fins. Blocking the left side and putting baffles on the right side is the best cooling you can achieve. But you still have to make sure the exit hole is big anough.

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RE: OS 1.60 woes (with perry pump even) - 1/3/2005 4:58:59 PM

fredycompean

Posts: 215
Joined: 4/11/2004
From: Santa CatarinaNuevo Leon, MEXICO
Status: offline

Problem solve! Mission accomplished! Challenge complete! While making absolutley sure that it in fact was my gas tank not getting enough presure when at less than half full, my friend apprached offering a perry pump that works on vibration instead of having to drill in the motor back plate. I gave it a try just for the sake of it, and not only did I not loose RPM on putting the plane verticaly, but I also gained about 600rpm on both vertical and horizontal. Still witht the master airscrew 18X8, 30% nitro, and a temperature of about 50ºF the plane just took off and skyrocketed. there was a huge noticeable change in performance, and it hoovered well. i still would like to get a little more out of it, but I guess changing the prop to an 18X6 or 19X6 will do the trick.
I was so excited to finally see the plane torque roll. It's a great plane so far and I still have to fine trim and get to know it better.
I'll post a video soon.

Thanks to all.

Fredy

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