Saito 82 vent line
10-23-2007 | 01:22 PM
#1
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From: Calimesa,
CA
Saito 82 vent line
I currently have the vent line running out the bottom of the cowl. The problem is that the oil works its way down the bottom of the fuselage and into the area where the wing is attached (P-51D). Is there a maximum amount of vent line tube that I can install? Can I run a line through the firewall and into the fuselage and have it exit somewhere near the tail? Total length of the vent line would be about 30". Is that a problem?
Thanks,
Pete
Thanks,
Pete
10-23-2007 | 10:07 PM
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From: va beach,
VA
RE: Saito 82 vent line
i saw on a thread here a fella had a metal u control tank set up on the firewall to catch the oil from the vent line if you have the room that would be an idea. he said he empty it after about every three flights it has two lines going into it so a suction bottle or even the fuel pump could empty it.was on a thread a guy is building a c130 gunship.
10-23-2007 | 10:16 PM
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From: Calimesa,
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RE: Saito 82 vent line
ORIGINAL: horace315
i saw on a thread here a fella had a metal u control tank set up on the firewall to catch the oil from the vent line if you have the room that would be an idea. he said he empty it after about every three flights it has two lines going into it so a suction bottle or even the fuel pump could empty it.was on a thread a guy is building a c130 gunship.
i saw on a thread here a fella had a metal u control tank set up on the firewall to catch the oil from the vent line if you have the room that would be an idea. he said he empty it after about every three flights it has two lines going into it so a suction bottle or even the fuel pump could empty it.was on a thread a guy is building a c130 gunship.
10-23-2007 | 10:35 PM
#5
RE: Saito 82 vent line
I got a question,
I have a couple of Magnum four's. Would it be possible to put a nipple on the muffler somewhere near the exhaust exit and get some positive crankcase ventilation?
Too much would probably be a bad thing huh?
I have a couple of Magnum four's. Would it be possible to put a nipple on the muffler somewhere near the exhaust exit and get some positive crankcase ventilation?
Too much would probably be a bad thing huh?
10-24-2007 | 12:31 PM
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From: Calimesa,
CA
RE: Saito 82 vent line
ORIGINAL: scratchonly
A fella at our field had all kinds of problems with a long vent line on a OS 48. Ran fine after shortening to about 6".
A fella at our field had all kinds of problems with a long vent line on a OS 48. Ran fine after shortening to about 6".
10-24-2007 | 06:25 PM
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From: Wynne,
AR
RE: Saito 82 vent line
I used a peice of that clear hose that they use in hospitals for the oxygen. Its a little bigger which makes be feel better about it breathing properly. From the nipple of my saito 72 i have it ran through the fus all the way back to the tail feathers 56 inches. Hardly any goo on my model at the end of the day. 10 to 12 flights. Most goo from a saito comes from that breather. the ext is fairly clean. Just my two dimes
10-24-2007 | 06:36 PM
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From: Calimesa,
CA
RE: Saito 82 vent line
ORIGINAL: masonman
One more thing mesa. This hose won't close its self off when the piston is going up in the cylinder. which an be a bad thing
One more thing mesa. This hose won't close its self off when the piston is going up in the cylinder. which an be a bad thing
And did you change the barbed nipple for the engine vent to a larger size?
Thanks
10-24-2007 | 06:39 PM
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From: Port MacquarieNew South Wales, AUSTRALIA
RE: Saito 82 vent line
Hi mesaflyer,
Many ways to skin a cat? A method I use with my Saitos is to run a short loop (<2") of 1/8" brass tube fixed to the fire wall so the end is at the mouth of the carby and use fuel tube from the breather to the tube. In this way the oil is recycled through the motor and only exits from the exhaust. Dramatically reduces the grunge and cleaning time.
I saw this method written up in an article from Brian Winch (Oz engine guru, see Oz Airborne or British RCME magazines), I had my doubts but gave it a try and it works fine.
Cheers,
Colin
Many ways to skin a cat? A method I use with my Saitos is to run a short loop (<2") of 1/8" brass tube fixed to the fire wall so the end is at the mouth of the carby and use fuel tube from the breather to the tube. In this way the oil is recycled through the motor and only exits from the exhaust. Dramatically reduces the grunge and cleaning time.
I saw this method written up in an article from Brian Winch (Oz engine guru, see Oz Airborne or British RCME magazines), I had my doubts but gave it a try and it works fine.
Cheers,
Colin
10-24-2007 | 06:48 PM
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From: Wynne,
AR
RE: Saito 82 vent line
I have seen that before crash. That what o.s. does but they shoot it in the intake. Mesa the fuel line most of us have is real easy to sqweeze closed with our fingers. so when you have a long length of this hooked to the vent nipple it can colapse on the ext stroke or the power stroke. The breather not only pushes oil out but it also sucks air in every time the turns over twice. So with the hose i am talking about it has four ribs inside the hose that run the length of it which makes it almost imposible for it to colapse its self
10-24-2007 | 06:53 PM
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From: Calimesa,
CA
RE: Saito 82 vent line
ORIGINAL: Crash Campbell
Hi mesaflyer,
Many ways to skin a cat? A method I use with my Saitos is to run a short loop (<2") of 1/8" brass tube fixed to the fire wall so the end is at the mouth of the carby and use fuel tube from the breather to the tube. In this way the oil is recycled through the motor and only exits from the exhaust. Dramatically reduces the grunge and cleaning time.
I saw this method written up in an article from Brian Winch (Oz engine guru, see Oz Airborne or British RCME magazines), I had my doubts but gave it a try and it works fine.
Cheers,
Colin
Hi mesaflyer,
Many ways to skin a cat? A method I use with my Saitos is to run a short loop (<2") of 1/8" brass tube fixed to the fire wall so the end is at the mouth of the carby and use fuel tube from the breather to the tube. In this way the oil is recycled through the motor and only exits from the exhaust. Dramatically reduces the grunge and cleaning time.
I saw this method written up in an article from Brian Winch (Oz engine guru, see Oz Airborne or British RCME magazines), I had my doubts but gave it a try and it works fine.
Cheers,
Colin
LOLThis is an idea I will have to try. Does ALL of the oil that comes out of the brass tube end up going through the carb, into the engine, and out of the exhaust? If it does, I would think this would be the "standard way" to run the vent line. Only thing I would have a problem with would be if the oil didn't make it to the carb, it would end up all over under the cowl.
Pete
10-29-2007 | 09:29 PM
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From: somewhere,
OH
RE: Saito 82 vent line
i got tired of all the oil on my plane so the easiest way i found was that i glued tubing to the inside of the landing gear down to the tire and pointed it to the rear of the plane, and then connected the other end to the engine. hardly any clean up at the end of the day.
10-29-2007 | 11:30 PM
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From: Calimesa,
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RE: Saito 82 vent line
ORIGINAL: jamesrxx951
i got tired of all the oil on my plane so the easiest way i found was that i glued tubing to the inside of the landing gear down to the tire and pointed it to the rear of the plane, and then connected the other end to the engine. hardly any clean up at the end of the day.
i got tired of all the oil on my plane so the easiest way i found was that i glued tubing to the inside of the landing gear down to the tire and pointed it to the rear of the plane, and then connected the other end to the engine. hardly any clean up at the end of the day.
Masonman has me a little worried about the line I ran to the rear. How long was the tube you ran and was it standard fuel line? I decided that I would just run mine out next to the muffler. At least that way all of the mess would be in the same place. [X(] Maybe I will try the route back to the carb next time I have the cowl off.
10-30-2007 | 08:14 AM
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From: somewhere,
OH
RE: Saito 82 vent line
i just used standard fuel tubing and it wasn't that long maybe a foot of tube. just used CA to attach it to the gear and you can barely see it. and again hardly any mess to clean up.
12-02-2007 | 08:53 PM
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From: Calimesa,
CA
RE: Saito 82 vent line
ORIGINAL: mesaflyer
Many ways to skin a cat, and I'll bet the cat doesn't like any of them LOL
This is an idea I will have to try. Does ALL of the oil that comes out of the brass tube end up going through the carb, into the engine, and out of the exhaust? If it does, I would think this would be the "standard way" to run the vent line. Only thing I would have a problem with would be if the oil didn't make it to the carb, it would end up all over under the cowl.
Pete
ORIGINAL: Crash Campbell
Hi mesaflyer,
Many ways to skin a cat? A method I use with my Saitos is to run a short loop (<2") of 1/8" brass tube fixed to the fire wall so the end is at the mouth of the carby and use fuel tube from the breather to the tube. In this way the oil is recycled through the motor and only exits from the exhaust. Dramatically reduces the grunge and cleaning time.
I saw this method written up in an article from Brian Winch (Oz engine guru, see Oz Airborne or British RCME magazines), I had my doubts but gave it a try and it works fine.
Cheers,
Colin
Hi mesaflyer,
Many ways to skin a cat? A method I use with my Saitos is to run a short loop (<2") of 1/8" brass tube fixed to the fire wall so the end is at the mouth of the carby and use fuel tube from the breather to the tube. In this way the oil is recycled through the motor and only exits from the exhaust. Dramatically reduces the grunge and cleaning time.
I saw this method written up in an article from Brian Winch (Oz engine guru, see Oz Airborne or British RCME magazines), I had my doubts but gave it a try and it works fine.
Cheers,
Colin
LOLThis is an idea I will have to try. Does ALL of the oil that comes out of the brass tube end up going through the carb, into the engine, and out of the exhaust? If it does, I would think this would be the "standard way" to run the vent line. Only thing I would have a problem with would be if the oil didn't make it to the carb, it would end up all over under the cowl.
Pete
Thanks for your help,
Pete
12-02-2007 | 10:19 PM
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From: Frostproof,
FL
RE: Saito 82 vent line
not a problem. tap the intake pipe for a 6-32 fuel line nipple . after grinding some of the threads off the nipple so it does not stick to far into the intake pipe, install. use a gasket and thread lock. run piece of fuel line from crankcase nipple to the one you just installed. Been doing this for many years on both OS and also my Saitos. Works great, does not have any effect on the running or adjustments of the motor, and gets rid of ALL the mess!
Bruce
12-03-2007 | 10:06 PM
#19
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RE: Saito 82 vent line
if you look at the newer OS surpassII engines the vent recircs through the intake manifold just like aa2dd just described, I have 3 of them and they run great there doesn't seem to be any difference in exhaust oil color or consistancy from the older surpass engines that vent from the bottom of the case other than the lack of that extra oil dripping out.
12-04-2007 | 12:01 AM
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From: Calimesa,
CA
RE: Saito 82 vent line
ORIGINAL: aa2dd
not a problem. tap the intake pipe for a 6-32 fuel line nipple . after grinding some of the threads off the nipple so it does not stick to far into the intake pipe, install. use a gasket and thread lock. run piece of fuel line from crankcase nipple to the one you just installed. Been doing this for many years on both OS and also my Saitos. Works great, does not have any effect on the running or adjustments of the motor, and gets rid of ALL the mess!
Bruce
not a problem. tap the intake pipe for a 6-32 fuel line nipple . after grinding some of the threads off the nipple so it does not stick to far into the intake pipe, install. use a gasket and thread lock. run piece of fuel line from crankcase nipple to the one you just installed. Been doing this for many years on both OS and also my Saitos. Works great, does not have any effect on the running or adjustments of the motor, and gets rid of ALL the mess!
Bruce
Thanks. I think I will try the fuel line nipple. The way I have it now makes a big difference in the oil on the outside of my plane. Your way sounds pretty easy.
Pete
