Running air-cooled gas engines at full throttle. - Page 2 - Snowblower Forum : Snow Blower Forums
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post #11 of 79 Old 01-23-2019, 06:51 PM
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Originally Posted by tdipaul View Post
Agreed, but who is going to rig that up?

How about the gun pointed at one of the head bolts near the exhaust port?

.

Anyone with a DVM that supports temps and a $5 thermocouple? Not much more work that using an IR gun . . .
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post #12 of 79 Old 01-23-2019, 06:54 PM
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whats a dvm?

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post #13 of 79 Old 01-23-2019, 06:54 PM
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I think I am in agreement with sscottsman on this - long term thermal is more relevant, although that isn't a constant either, since load on a blower is changing constantly. The key would be to look at some known load cases and compare once things are settled into a steady state.
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post #14 of 79 Old 01-23-2019, 06:56 PM
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Quote:
Originally Posted by sscotsman View Post
if you wish to dispute any of the manufacturer-provided info in the first post..thats fine..but the contrary info must *also* be from air-cooled engine manufacturers, or OPE manufacturers. Personal opinion is irrelevant, on both sides.
I don't disagree with the principle, anyways. But I don't think info should be limited to stuff from the manufacturers.

If someone wanted to measure their engine temps, ideally with a full load (throttle wide open) at full-RPM, and a full load at partial-RPM, I think that would still be very educational, as an example.

(Oops, sorry, there have been a bunch of posts since I loaded this page. I'm late to the party.)

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post #15 of 79 Old 01-23-2019, 06:59 PM
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Originally Posted by tdipaul View Post
whats a dvm?

Digital Volt Meter. A lot of them (even cheapies) have thermocouple ports, since folks in the trades often use them to measure temps.
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post #16 of 79 Old 01-23-2019, 07:01 PM
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but the load (ie the blower processing the snow) can vary from one pass to the next. Would this affect the results?
.

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post #17 of 79 Old 01-23-2019, 07:04 PM
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Quote:
Originally Posted by tdipaul View Post
Agreed, but who is going to rig that up?

How about the gun pointed at one of the head bolts near the exhaust port?

.

Hard to get head temp with the cooling shrouds on, and hard to get cooling with them off . . .



Thermocouple could just be pushed into the fins on the head past the plug into the fins.
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post #18 of 79 Old 01-23-2019, 07:06 PM Thread Starter
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We do have a problem with such an expirement though..
Whichever way it seems to "prove", someone wont believe it..

I have said in this thread I only want manufacturer data..
And tadawson has said he doesnt believe the manufacturer data (in post 1 of this thread) because it isnt specifically from *engine* manufacturers.

So im willing to accept any manufacturer statements, tadawson only wants engine manufacturers specifically. Neither of us will likely believe an unscientific test from someone on youtube!

Would still be interesting to see, even it probably cant be considered definitive "proof".

But for the most part, yes, we really do need to rely on what the manufacturers say, because they are the only true experts..we are not.

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Last edited by sscotsman; 01-23-2019 at 07:09 PM.
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post #19 of 79 Old 01-23-2019, 07:18 PM
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Quote:
Originally Posted by sscotsman View Post
Since this thread has the potential to drift into conspiracy-theory land, if you wish to dispute any of the manufacturer-provided info in the first post..thats fine..but the contrary info must *also* be from air-cooled engine manufacturers, or OPE manufacturers. Personal opinion is irrelevant, on both sides.
Thanks,
Scot

Your argument is with Honda as I stated in the other thread. Honda is running their engines and generators at 3000RPM in the rest of the world with no reported adverse effect, so why is Honda wrong and where is your proof of reduced engine service life?
Generator service is likely the most severe duty an engine will see.


EDIT ONE OF MY POSTS HAS BEEN DELETED ALREADY.

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post #20 of 79 Old 01-23-2019, 07:20 PM Thread Starter
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Your argument is with Honda as I stated in the other thread. Honda is running their engines and generators at 3000RPM in the rest of the world with no reported adverse effect, so why is Honda wrong and where is your proof of reduced engine service life?
Generator service is likely the most severe duty an engine will see.
I have no idea what you are talking about, in relation to Honda.
As I said, feel free to post direct quotes from manufacturer documents, and provide a link to the original document, like in post #1.

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