Post by: K2-K6 on March 28, 2023, 12:00:30 PM
https://youtu.be/F39gjxxGHfY
Warning, for the impatient it may not be for you :) slow delivery but a very lucid look at this element of engineering from Brian Garvey.
Post by: Laverdaroo on March 28, 2023, 01:19:03 PM
I can see that he must be a good engineer, he must be able to get those hands into the smallest of places, have you seen how much his thumb bends the wrong way when he's holding that sprocket assembly :o..............old bannana thumbs! ;D
Post by: K2-K6 on March 28, 2023, 01:27:58 PM
Yes, needs to bring the speed up a little hence my warning for the impatient. Very clear in his view and explanation though.
Post by: Johnwebley on March 28, 2023, 01:39:00 PM
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Post by: Laverdaroo on March 28, 2023, 01:43:02 PM
;D I thought the same about thumb dexterity Roo.
Yes, needs to bring the speed up a little hence my warning for the impatient. Very clear in his view and explanation though.
I kinda got it straight away and having a visual aid meant that it was really clear. I was always pretty good at physics and maths, couldn't really see why he said folk dont understand that particular theory really, you can see the extrra travel on the crank to allow room for the swing and rotation of the con rod. Anyway, spot on, cheers 8) ;)
Post by: Laverdaroo on March 29, 2023, 10:32:02 AM
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Post by: K2-K6 on March 29, 2023, 12:40:28 PM
Something else interesting https://www.f1technical.net/news/20316 overview of how they burn really really lean fuel mix currently.
But.......https://global.honda/heritage/episodes/1972introducingthecvcc.html this principle was developed by Honda to production in the 70s just how far ahead were they :) and interesting that they have come to the fore in F1 terms recently.
Post by: Multiman on March 29, 2023, 10:53:21 PM
It appeared to me that every time he turned the crank to 90 deg it looked like he turned it too far, hence I was unconvinced.
I was sure he was right and that it was simply a slight camera angle offset that made it look suspect, so being a bit anal I drew it out myself which made it blindingly obvious.
10cm con rod and 3cm crank.
Got to do the maths now just to see if I still have half a brain cell left.
Worryingly I did an engineering degree and the first year was common across all disciplines.
I can remember doing vector diagrams to dynamically balance several different weights about a rotating shaft so I may well have done all this stuff and forgotten all of it. It was 1976? ish.
If you mention this year, Roo will gleefully tell you he was aged 1. Don't ask how I know.
However what an amazing bit of engineering and mind boggling all the torsional tweaks they have to do to the camshaft to get it to work as well as they can.
Post by: Laverdaroo on March 30, 2023, 12:13:07 AM
Post by: Oddjob on March 30, 2023, 03:57:58 AM
In fact I honestly thought someone had put a nose on a scrotum.
Post by: Laverdaroo on March 30, 2023, 10:14:38 AM
I have lovely skin, how very dare you, it's like antique, horse leather ;D ;D ;D
Anyway, get stuffed, at least I'm not a 'left footer' from the wrong side of the hill 8)
And it's a BAP, not a balm! ;) :D
Post by: Oddjob on March 30, 2023, 01:56:42 PM
Post by: Laverdaroo on March 30, 2023, 02:01:57 PM
, a long distant memory
but it’s a bap really Sent from my iPhone using Tapatalk
Post by: Oddjob on March 30, 2023, 02:05:31 PM
Post by: Laverdaroo on March 30, 2023, 02:12:10 PM
I better not look like bloody Ken Dodd after
All this, I’ll be gutted
Saying that the hairs not far off today………..fishing mode, out of bed straight out the door and on the road. Just stopped to brew up in the back of the van.
Just like to say thanks to my current sponsor , The Long Haired General, who filled the tank up for me yesterday so I could bolt off today………….what a gal
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Post by: Multiman on March 30, 2023, 02:38:44 PM
I was two ;D ;D ;D
Your ageist comments are so uncool Roo.
Like when I helped you set your 2nd contact breaker up correctly and you said I understood it because "contact breakers are more your era"
If you can't say something nice don't say anything.
PS got my bus pass today! There thats made you envious!
Post by: Bryanj on March 30, 2023, 03:05:57 PM
Oh yeah the buiding society insisted
Post by: Multiman on March 30, 2023, 03:50:03 PM
I'm still doing a day a week which I do enjoy, but its got a 3.5hr round trip commute attached to it, so I leave at 07.00 and get back at about 20.00-20.30 and I am cream crackered.
Not sure how many of those I could manage now.
Post by: Johnny4428 on March 30, 2023, 05:38:23 PM
Post by: Oddjob on March 30, 2023, 06:21:34 PM
Post by: Laverdaroo on March 30, 2023, 10:38:05 PM
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Post by: Multiman on March 30, 2023, 10:45:32 PM
I am tired because I couldn't get to sleep as I was trying to understand why the top half of the piston stroke is faster/further than the bottom 90 deg.
Fortunately I had alight bulb moment so I hope to sleep better tonight.
Have a good time fishin.
Post by: Laverdaroo on March 30, 2023, 10:51:15 PM
I’ll bob over next week and hear the Swiss watch that is the 400 after your fiddling
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Post by: Johnny4428 on March 30, 2023, 11:18:01 PM
I gave up my HGV this year as well Johnny, just couldn't justify the £100 medical, I was thanking of maybe doing a few days on the agency but they said I had to have driven within the last 6 months so I needed a refresher course. Only been driving the damn things for over 40 years so how they can think I don't know how to do it is beyond me. I did renew last year but didn't do a days work so why bother. Plus you need to renew your other licenses every year as well, I didn't do that at one point as I thought they were all valid till 70 but no, had to go on a course and they said your license has expired and I said no just the HGV but it appears not to be the case.What the hell Ken! Refresher Course?? Yes bit of an insult! Medical here was going to be £180. Wasn’t a problem, employer said they would pay. But just decided this retirement game is for me. Plenty going on!
Post by: Laverdaroo on March 30, 2023, 11:21:20 PM
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Post by: Johnny4428 on March 31, 2023, 10:33:23 AM
Good for you Johnny, you’ve done enough, enjoy yerself, it sounds lovely up there. Bar the ice obvsThanks Roo! Could do with just a couple more degrees of heat sometimes, other than that it’s great.
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Post by: McCabe-Thiele (Ted) on March 31, 2023, 12:32:05 PM
Post by: Johnny4428 on March 31, 2023, 05:11:05 PM
They don't wear those Aran jumpers for nowt.Not me! I’m a T-shirt guy. Climatiseation.😁🥶🥶
Post by: Johnny4428 on March 31, 2023, 05:13:16 PM
Post by: Laverdaroo on March 31, 2023, 06:25:35 PM
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