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Post by sweepleader on Mar 3, 2018 15:37:18 GMT -5
This is by a guy named Agent JayZ, in Canada. He is a turbojet engine mechanic. This video shows him replacing a big engine bearing with heat. He does a great job of showing and explaining how heat can be used and just what happens. www.youtube.com/watch?v=RuFZFwIb2xIHe has a lot of other videos on jet engine repairs, I like them. |
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Post by stillsawing on Mar 3, 2018 15:59:05 GMT -5
Neat and informative!
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Post by Deleted on Mar 3, 2018 16:49:45 GMT -5
I wasn't aware that Homelite put jet engines in their equipment.Lol Imagine the possibilities....
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Post by sweepleader on Mar 3, 2018 18:27:44 GMT -5
Well, have you seen this yet? www.youtube.com/watch?v=_Aog-6mFPcYIts a total rip-off of a post war Homelite project attempting to give brand S credit for the concept. Homelite started with a couple of jet engineers who had worked for Boeing during the war on jet aircraft. Boeing dropped the project when GE got the nod from the US government. These guys had a prototype they showed Homelite and the board of directors gave them the green light to tool it up. It was to be an AC generator, very light, lots of power but they could not get the gearing right. The Gen had to run much slower than the turbine in the engine. That was when they decided to try it in a smaller version in a saw. It was different from the knock off in the video, the engine sat crosswise and used all belt reductions similar to the belt drive saws that most are familiar with. Really made a ton of power but used a lot of fuel, something that Detroit found out in the '60s when they tried turbines in cars. Undee70ss has some of the drawings and a couple of engine parts, ask him about them, very cool. I have never seen pictures of a completed saw, but there must be some floating around somewhere. They will turn up one day and they will get posted here. I am guessing that the prototypes were destroyed or are in someone's collection somewhere near Gastonia. Onlyhomelites provided some of this information to me. |
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Post by sweepleader on Mar 4, 2018 7:56:04 GMT -5
OK, OK, yes this story is BS, totally made up. Well, except for the brand S turbine saw, that is real. I thought sure someone would call me on it, particularly Greg and Leon since neither of them would know what the heck I was talking about. Story sounded pretty good though, eh? :{) I will be good in the future, stick to the facts.
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Post by onlyhomelites on Mar 4, 2018 10:01:09 GMT -5
I thought sure someone would call me on it, particularly Greg and Leon since neither of them would know what the heck I was talking about. Story sounded pretty good though, eh? :{) I will be good in the future, stick to the facts. I just read this beautiful story and was racking my brain trying to remember what beer induced bullsh!t I might have sent you...nice one Dan!!  |
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Post by sweepleader on Mar 4, 2018 10:27:10 GMT -5
Now that is funny! :{)
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Post by jerseyhighlander on Mar 4, 2018 11:17:46 GMT -5
As to part one, with the jet engine bearing; Very cool, hard to believe how little heat made that bearing start moving. And 400 hours and it's done! That's one hell of a bearing to be disposable. Have to wonder what industrial machine might get it next. and the new one, from 1962, packed in "polar bear grease".
Part two, Hilarious. Could picture Leon racking his brain thinking he was losing it.
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Post by undee70ss on Mar 4, 2018 15:07:31 GMT -5
With airplanes, parts get replaced long before they get worn out. Once a part is this old, or has this amount of hours on it, it gets replaced. Done for safety reasons.
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Post by jerseyhighlander on Mar 4, 2018 18:12:18 GMT -5
With airplanes, parts get replaced long before they get worn out. Once a part is this old, or has this amount of hours on it, it gets replaced. Done for safety reasons. I do understand and more so, appreciate that, it still never ceases to boggle my mind. I think Helo's are even worse that way. I cut up a helocopter years ago for a job I was doing. It was an interesting thing playing with those parts and metals. You would think aircraft aluminum wasn't even the same metal as the aluminum we play with. I'd like to have one of those bearings just to hang on my wall. |
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Post by Deleted on Mar 4, 2018 18:15:00 GMT -5
I have a friend who is an airplane mechanic/troubleshooter & he told me that an aircraft engine has to be completely torn down & dismantled by law every 500 hrs.Maybe this is for small aircraft though.Funny thing was,when I met him after he'd gotten out of the military he was insulating houses for a living.We were sitting having a couple of beers one day & he was telling me his qualifications that he'd gotten while in the Armed Forces.I said to him"Dave,why the hell are you insulating houses?You should be working at the airport making big bucks"At that time I had contacts at BUF airport & told him who to go see.They hired him on the spot.He's moved on since then to better positions & makes a hell of a lot more money than if he'd continued to insulate houses.
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