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Old 07-11-2021, 03:42 AM
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Originally Posted by 1200SportsterRider
MIke, I could trade you a silver 80 for the 56, I have two 50's and no 56.
Sure
Old 07-11-2021, 04:30 AM
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Originally Posted by Glowgeek
Dave, remember he has the 170 R3, the one with a tiny vent nipple hole. Could be that some of the fuel standoff present in the intake tract during valve overlap periods is entering the crankcase by design.

Rob, does any oil come out of the crankcase nipple while running the engine?
Yes some,, but have not measured the exact amount.
Will check to be sure.
Old 07-11-2021, 04:59 AM
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Originally Posted by RoKit
Yes some,, but have not measured the exact amount.
Will check to be sure.
Whether it's strickly oil or a fuel/oil mix coming out of the vent will be very telling.
Old 07-11-2021, 06:45 AM
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Originally Posted by Glowgeek
Whether it's strickly oil or a fuel/oil mix coming out of the vent will be very telling.
As far as I could judge it was oil.
Old 07-11-2021, 03:01 PM
  #50705  
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Originally Posted by Captcrunch44
Sure

Nice clean Saito 80 new carb, new bearings and new valves and gaskets.

Early 65, 80, and 65 BK.

Please don't laugh, my first effort at a home made muffler, I need to work on the soldering.

Old 07-11-2021, 07:24 PM
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Originally Posted by 1200SportsterRider

Nice clean Saito 80 new carb, new bearings and new valves and gaskets.

Early 65, 80, and 65 BK.

Please don't laugh, my first effort at a home made muffler, I need to work on the soldering.
Dave what ever you want its yours I will go through the my stash and see what I come up with.
saito 56 that is.
hows your stock on 80s, 91s, and 100s.
Old 07-11-2021, 10:05 PM
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Originally Posted by Glowgeek
Whether it's strickly oil or a fuel/oil mix coming out of the vent will be very telling.
Out of 0.75 liter fuel I get about 2 cl oil through the vent.


Old 07-12-2021, 02:33 AM
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Originally Posted by Glowgeek
Dave, remember he has the 170 R3, the one with a tiny vent nipple hole. Could be that some of the fuel standoff present in the intake tract during valve overlap periods is entering the crankcase by design.

Rob, does any oil come out of the crankcase nipple while running the engine?

I have ordered about 6 crankcase vents recently and they are all with the small holes. It should not be possible for raw fuel to enter the crankcase no matter the vent hole size.
Old 07-12-2021, 04:37 AM
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Originally Posted by 1200SportsterRider
I have ordered about 6 crankcase vents recently and they are all with the small holes. It should not be possible for raw fuel to enter the crankcase no matter the vent hole size.
I would agree, however in the case of Rob's 170 R3 it appears to be possible. Problems with unequal fuel delivery between the 3 cylinders is a known problem as well. No wonder Ray English or whoever offered a new intake manifold design. I would love to see the new design.
Old 07-12-2021, 07:00 AM
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Originally Posted by Glowgeek
I would agree, however in the case of Rob's 170 R3 it appears to be possible. Problems with unequal fuel delivery between the 3 cylinders is a known problem as well. No wonder Ray English or whoever offered a new intake manifold design. I would love to see the new design.
There is no fuel in the crank case in the 170R3,, if any its through the normal "blow by" as in every piston engine.
(Auto motive engines sometimes have diluted engine oil due to bad piston rings and/or leaking injectors when engine is stopped.)

Some of the after market manifold designs ...does let the fuel/oil mix in to the crank case for better methanol & oil blending / "stiring",
and they also claim that the lubrication becomes better..
Old 07-12-2021, 08:12 AM
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Originally Posted by RoKit
There is no fuel in the crank case in the 170R3,, if any its through the normal "blow by" as in every piston engine.
(Auto motive engines sometimes have diluted engine oil due to bad piston rings and/or leaking injectors when engine is stopped.)

Some of the after market manifold designs ...does let the fuel/oil mix in to the crank case for better methanol & oil blending / "stiring",
and they also claim that the lubrication becomes better.
.
With the intake runners open to the crankcase your 170 R3 is using the pumping action of the pistons to help stir the mix as well, albeit only inside the intake runners and in very close proximity to them. At least that's what it appears Saito was attempting to do, to stir the mix to help keep the oil in atomized suspension.

If you ever decide to invest in the aftermarket intake please post pics here. I would love to see how the problem was resolved.


Last edited by Glowgeek; 07-12-2021 at 08:14 AM.
Old 07-12-2021, 09:27 AM
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Originally Posted by Glowgeek
With the intake runners open to the crankcase your 170 R3 is using the pumping action of the pistons to help stir the mix as well, albeit only inside the intake runners and in very close proximity to them. At least that's what it appears Saito was attempting to do, to stir the mix to help keep the oil in atomized suspension.

If you ever decide to invest in the aftermarket intake please post pics here. I would love to see how the problem was resolved.
Not 100% sure but I dont think Saito have any engine where the intake is open in to crank case,,
Their re-design is "only" making a central chamber in the manifold.
I dont think I will ever spend that kind of money just because Saito have missed the customers expectations.
I am stubborn about things like that,, will probably spend many hours re-working the old one or even make a new.
But sure I will share any useful in sight I find along the way .

Old 07-12-2021, 10:35 AM
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EATING MY HEART OUT! I for one like your homemade muffler, how effective is it compared to a stock muffler?

Originally Posted by 1200SportsterRider

Nice clean Saito 80 new carb, new bearings and new valves and gaskets.

Early 65, 80, and 65 BK.

Please don't laugh, my first effort at a home made muffler, I need to work on the soldering.
Old 07-12-2021, 11:10 AM
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Originally Posted by FlyerInOKC
EATING MY HEART OUT! I for one like your homemade muffler, how effective is it compared to a stock muffler?
Me too! A little sanding to remove the excess solder, easily done, and polishing that thing out on a buffing wheel with a little Rouge it'll look like a million doll hairs. Alternatively, painting it up with high temp ceramic paint will make it look like it rolled off of the Saito factory floor.

Excellent job Dave! Now I want a few!
Old 07-12-2021, 11:16 AM
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Truth be told, I haven't run yet, it's 91 degrees here, I don't think it will happen today. I used a Saito baloney muffler header, the muffler was badly bent, I tried to straighten it but no can do.

Thanks all, I will try again.
Old 07-12-2021, 11:27 AM
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All the things I can do with the equipment I have, but lack one very important part. Can anyone guess what that is?
Old 07-12-2021, 11:57 AM
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Either Time or Beer.

Whoops, you're Todd, not Pete.

So, Time?

Last edited by Glowgeek; 07-12-2021 at 12:01 PM.
Old 07-12-2021, 12:15 PM
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Time. a little lack of ambition too. Since I spend so much of my time down here working every day, I have a hard time sitting here trying to do things not work related.
Old 07-12-2021, 01:00 PM
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Oh man, do I ever get that. I've spent the last month in my shop building a complete cabinet set for a kitchen addition I'm building. The last thing I want to do at the end of my work day is to spend one single more minute in there. I have 3 planes that are 3 hours of work or less from ready-to-fly and they just sit there. I just don't have the energy I had in my youth.
Old 07-12-2021, 01:06 PM
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I still have not completed the Corsair. All I need are a few stickers, a pilot and canopy. Can't find a pilot that fits, they are too big. Just an hour or two to complete. I am in no rush to finish my boat either, I got it several years ago and just started it this year. Just need to put the transom wood on and give it a sanding. I can wait though, its mostly for display, but plan to float and run it someday. I still have some servos to replace in the P-47, then give it a final balance and throws and can fly it once again. I like how it flies, just need to make sure i have better judgement so I miss the roof, but that area that was blocked before has been cleaned up and no longer need to thread the needle.
Old 07-12-2021, 02:25 PM
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IIRC, your Corsair is the same as mine, a Top Flite 1/8 scale 62" WS F4U Gold Edition. There's lots of 1/7-1/8 Scale WWll pilot figures available online. Some of the nicest come from here:
https://www.warbirdpilots.com/category_s/1850.htm
Will a 10" pilot figure not fit?
Old 07-12-2021, 02:33 PM
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10" will not fit, needs to be <7" to fit. Thats been the dilemma, finding a pilot under 7".
Old 07-13-2021, 03:31 AM
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The pilot was wounded and needs a 3" amputation of both legs.
Old 07-13-2021, 06:15 AM
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It's the torso that is too long, the head sticks up too high. I didn't get the floor down low enough apparently
Old 07-13-2021, 09:11 AM
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He was belly shot and requires amputation from the ribcage down? Bummer, I hate when that happens!

I'd better check the floor to canopy height on mine before ordering a pilot figure. I built it to plan.

I can always stick Pamela in there. She says they're real, obviously a lie, no way those are authentic Oakleys.



Last edited by Glowgeek; 07-13-2021 at 09:42 AM.

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