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Old 10-03-2013, 10:47 PM   #31 (permalink)
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Originally Posted by Occasionally6 View Post
I think Toyota's use a proprietary coolant from the factory. It's not compatible with some other coolants so flush well before swapping in something else. If you don't, you can get a mud like sediment in the cooling system if the old and new coolants react.
I've already seen some folks getting in trouble with Toyotas for that matter.

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Old 10-04-2013, 01:09 AM   #32 (permalink)
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I offer a very hearty thank you FAA for their support of general aviation technological stagna...advancement.
Well, I can understand it up to a point. After all, you can't just pull over to the side of the road if your airplane engine conks out.

....But yeah, the certification process does tend to stifle innovation. Badly.

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Old 10-04-2013, 03:26 AM   #33 (permalink)
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In 5 years and 600 hours of piston single time I have had 2 certified ignitions fail. Aircraft typically have 2 magnetos for performance, (because they suck) and for redundancy, (because they suck in a second more serious way).

In 18 years and who knows how many hours/miles (in < 1 year I have driven 20000 miles at a educated guess averaging 35mph for a total of 570 hours) I have had 1 electronic ignition fail that caused the engine to quit.

Most of the noncertified electronic ignition systems I have seen are dual redundant systems as well, because once in a great while one could, possibly, eventually fail...maybe. And as you say you can't just pull over when the engine stops.

I'll just stop here because it's o.t. and I could write a 5 page paper on virtues of various noncertified systems and the FAA's bureaucratic obstructionism and it's cost to the industry.
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Old 10-04-2013, 04:00 AM   #34 (permalink)
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I'll just stop here because it's o.t. and I could write a 5 page paper on virtues of various noncertified systems and the FAA's bureaucratic obstructionism and it's cost to the industry.
Here, maybe this will help:

Hahaha
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Old 10-04-2013, 05:36 PM   #35 (permalink)
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Here, maybe this will help:

Hahaha
perhaps a bit
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Old 10-08-2013, 02:09 AM   #36 (permalink)
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Everyone has, at one point or another, started their car, forgot they started it already and then turned the key again. If there is anybody around, it's one of the most embarrassing things to do. But what causes the horrific screeching sound?
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Old 10-08-2013, 02:14 AM   #37 (permalink)
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Everyone has, at one point or another, started their car, forgot they started it already and then turned the key again. If there is anybody around, it's one of the most embarrassing things to do. But what causes the horrific screeching sound?
Normally when you start the engine, the ring gear (attached to the crankshaft) is stopped. The starter gear pushes/engages into it and then starts spinning to turn it.

When the engine is running, the ring gear is spinning. If you hit the starter, the starter gear gets pushed into an already spinning ring gear.

Sort of like poking your finger into a spinning fan. You would be screeching too!
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Old 10-08-2013, 02:16 AM   #38 (permalink)
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That is the sound ones pride makes as it is violently stripped from your ego, it sounds exactly like a starter gear contacting the already spinning flywheel.
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Old 10-08-2013, 02:21 AM   #39 (permalink)
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@mechman, thank you! So on cars that have a starter-generator, does a driver have that same problem?

@bestclimb, haha! I can definitely feel my pride being forcibly taken away from me.
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Old 10-08-2013, 02:32 AM   #40 (permalink)
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@mechman, thank you! So on cars that have a starter-generator, does a driver have that same problem?.
I would not think so, the gears of starter generators I have been around are always engaged.

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