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Search: Posts Made By: qazimoto
Showing results 1 to 19 of 19
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Forum: Everything Diesel
10-21-2018, 04:19 PM
Replies: 91
Views: 13,674
Posted By qazimoto

I think that you've just rediscovered the glow...

I think that you've just rediscovered the glow engine.

These are my two most recent acquisitions from a local deceased estate.

Both nib, a Doonside Mills, and a mk2 Rossi glow. I have a spare...
Forum: Everything Diesel
10-19-2018, 07:56 PM
Replies: 91
Views: 13,674
Posted By qazimoto

Well there you go! I thought all along we were...

Well there you go! I thought all along we were talking about model diesel engines powered by fuels using ether, kero and castor oil (or similar).
Forum: Everything Diesel
10-18-2018, 02:35 PM
Replies: 91
Views: 13,674
Posted By qazimoto

The table below represents the surface...

The table below represents the surface temperature of a steel object against surface colour. Normally you start with a shiny surface and it's colour changes as the surface temperature changes. The...
Forum: Everything Diesel
10-18-2018, 01:55 PM
Replies: 91
Views: 13,674
Posted By qazimoto

The surface on the baffled piston on the Polish...

The surface on the baffled piston on the Polish engine shown above clearly demonstrates that it hasn't been anywhere near red heat. I'd guess an absolute max of about 250 degrees C.
Forum: Everything Diesel
10-17-2018, 07:26 PM
Replies: 91
Views: 13,674
Posted By qazimoto

It's the heat generated by the compression of the...

It's the heat generated by the compression of the fuel that causes ignition. Who said that it was the...
Forum: Everything Diesel
09-15-2018, 04:24 PM
Replies: 91
Views: 13,674
Posted By qazimoto

Same here, as a kid flying glows on the oval...

Same here, as a kid flying glows on the oval behind my house right into dusk on a summers evening. Bright exhaust glow. Of course a Mills 1.3 is right down one end of the spectrum as diesels go. I'll...
Forum: Everything Diesel
09-15-2018, 12:17 AM
Replies: 91
Views: 13,674
Posted By qazimoto

Ok at 5.30pm, dusk. no light from exhaust. ...

Ok at 5.30pm, dusk. no light from exhaust.

At 6.14pm it's dark, the Kookaburra's just gave their night time greeting. Complete tank, no light from exhaust.

I'd say that any light produced (if...
Forum: Everything Diesel
09-14-2018, 11:15 PM
Replies: 91
Views: 13,674
Posted By qazimoto

I've just set up a Mills 1.3 diesel on the test...

I've just set up a Mills 1.3 diesel on the test bench and run it. It's just after 5pm here on the East coast of New South Wales, and the sun will set in about 30 minutes.

No light from the exhaust...
Forum: Everything Diesel
09-05-2018, 12:59 AM
Replies: 91
Views: 13,674
Posted By qazimoto

I think it's saying that the slightly recessed...

I think it's saying that the slightly recessed contra is just a starting position. Dead flat is aspirational which may not be mechanically possible without fine shimming. That is also confirmed by...
Forum: Everything Diesel
09-04-2018, 06:52 PM
Replies: 91
Views: 13,674
Posted By qazimoto

Modern racing diesels with push pull contra...

Modern racing diesels with push pull contra heads are mostly dead flat. Didn't we discuss the earlier in the thread? Or was that another?
Forum: Everything Diesel
05-22-2018, 08:24 PM
Replies: 91
Views: 13,674
Posted By qazimoto

Clever! Love to see a youtube video of it running...

Clever! Love to see a youtube video of it running :-)
Forum: Everything Diesel
05-22-2018, 02:25 AM
Replies: 91
Views: 13,674
Posted By qazimoto

So much intellectual effort expended in this...

So much intellectual effort expended in this thread!

Yes I noticed that. You could just clean it up and reassemble. Suouldn't make that much difference. I'm wondering why they went to so much...
Forum: Everything Diesel
05-21-2018, 11:09 PM
Replies: 91
Views: 13,674
Posted By qazimoto

Wow! What an engine. I've been looking for...

Wow! What an engine.

I've been looking for an excuse to use the term "Necro-bounce" :-)
Forum: Everything Diesel
05-29-2014, 12:36 AM
Replies: 91
Views: 13,674
Posted By qazimoto

It's all explained here in Adrian Duncan's fine...

It's all explained here in Adrian Duncan's fine article: http://www.modelenginenews.org/ad/max15d.html
Forum: Everything Diesel
05-28-2014, 07:14 PM
Replies: 91
Views: 13,674
Posted By qazimoto

I gather that the OS 15 Diesel was a good engine....

I gather that the OS 15 Diesel was a good engine. Surprisingly I know quite a few people, maybe four or five who actually own one. I have seen one used and it went well.

However it wasn't a great...
Forum: Everything Diesel
05-27-2014, 03:27 PM
Replies: 91
Views: 13,674
Posted By qazimoto

Chris, I'm a bit confused by your post above...

Chris,

I'm a bit confused by your post above but I suspect that you're arguing both for and against 500 years of established vector mathematics.

The piston in an IC engine is there to convert...
Forum: Everything Diesel
05-27-2014, 05:36 AM
Replies: 91
Views: 13,674
Posted By qazimoto

Gerryndennis is right Chris. The...

Gerryndennis is right Chris.

The "projected" surface area of the conical piston top to a vertical force will be the same as the actual surface area of a flat top piston of the same diameter.
...
Forum: Everything Diesel
05-22-2014, 04:43 PM
Replies: 91
Views: 13,674
Posted By qazimoto

Why would you want to correct the name? It looks...

Why would you want to correct the name? It looks exactly like what a mk2 Olly Cub with a serial number of 274 should look like.

The engines in my pic are all genuine Oliver Tiger Cub MK2.

Are...
Forum: Everything Diesel
05-22-2014, 05:37 AM
Replies: 91
Views: 13,674
Posted By qazimoto

It would seem that the Eifflaender's, John...

It would seem that the Eifflaender's, John Oliver, and Tom Ridley have come to the same conclusion about conical/domed pistons.

I just checked a few late model PAW 15 GTS and they all have flat...
Showing results 1 to 19 of 19


 
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