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Stopping the shakes
Posted: Tue Jun 06, 2017 11:46 pm
by LouiseM
Just spotted this interesting article about a twin cam split screen traveller and how a vibration problem was solved. Fascinating to see the amount of work that has gone into it, including designing a damper for the rear view mirror to balance out the vibration from the exhaust
https://www.hemmings.com/blog/2017/06/0 ... ompromise/
Re: Stopping the shakes
Posted: Wed Jun 07, 2017 7:39 am
by MikeNash
Thanks for that Louise. MikeN.
Re: Stopping the shakes
Posted: Sun Jun 11, 2017 4:27 pm
by moggiethouable
It is interesting and on reading it I realise I must fall in to the "if it aint broke dont fix it" brigade, also I switch off a little when I see the words "heavily modified"
Issigonis Leonard Lord et all would spin at high revs in their graves if they were to understand a cousin from across the pond fitted a Japanese engine in place of the original A series model.
Now I know I stand to open a can of worms with the modifiers, but in defence I myself robbed a Rover V8 of its engine to build a kit car once, but once a car is this "heavily modified" it looks like a Morris Minor, but really is no more a Morris Minor than the A.C. Cobra I built from refurbished scrap yard bits.
Now like a 2nd world war Lancaster bomber pilot over Berlin, I am waiting for the flak.
Re: Stopping the shakes
Posted: Sun Jun 11, 2017 5:13 pm
by firedrake1942
Rear Gunner to Pilot, 'Skipper, each to his or her own, but you are not alone.'
Re: Stopping the shakes
Posted: Sun Jun 11, 2017 6:44 pm
by SteveClem
Yes, it's still a free country...just about. Do your own thing.
Re: Stopping the shakes
Posted: Mon Jun 12, 2017 12:50 am
by myoldjalopy
Original/authentic cars are rarer and will become even more so. Those that exist should not be modified irreversibly, if at all.....
Re: Stopping the shakes
Posted: Mon Jun 12, 2017 7:34 am
by philthehill
Now who was it that said that there were not many controversial subjects on here!!!!!!!!!!!!!

Re: Stopping the shakes
Posted: Mon Jun 12, 2017 10:27 am
by palacebear
Any subject can be turned into controversy... if you know how!

Re: Stopping the shakes
Posted: Mon Jun 12, 2017 10:38 am
by Monty-4
There is a Pathe video on YouTube that demonstrates a British manufacturer, I think BMC, putting cars and components through extensive stress testing. This includes sticking cars on vibrating platforms to see where the resonances are so they can adjust the designs accordingly. So this kind of stuff isn't new and that old method sounds like more fun than building a mathematical model!
Re: Stopping the shakes
Posted: Mon Jun 12, 2017 12:23 pm
by firedrake1942
Do you have a link, sounds like fun . (retired and bored)
Re: Stopping the shakes
Posted: Mon Jun 12, 2017 5:18 pm
by Monty-4
Indeed! (not retired but bored at work)
https://youtu.be/QWz5zqsIMiw?t=6m10s
Re: Stopping the shakes
Posted: Mon Jun 12, 2017 5:44 pm
by firedrake1942
Fascinating.
Lovely lowlight NWL435 (Doesn't seem to have any bumper spacers although NWL576 was the first production model) with no doors, no seat belts and driver and technician at serious risk.... H&S ?? What H&S ??
Another early one (Bumper inserts) OJO 20.
Re: Stopping the shakes
Posted: Mon Jun 12, 2017 5:55 pm
by palacebear
NWL433 was a 'narrow' pre-prod tourer registered Sept 1947. Likely that NWL435 was pre-prod 'narrow' saloon. Chassis no. EX/133 fitted with 800cc flat-four.
Re: Stopping the shakes
Posted: Mon Jun 12, 2017 6:26 pm
by firedrake1942
Ahh they looked normal , I will watch again.
Re: Stopping the shakes
Posted: Mon Jun 12, 2017 6:51 pm
by palacebear
Beginning to doubt myself. NWL435 looks like a normal 'wide' S.MM even the 1949 onwards tail lights but no bumper joint. Was it retained as a development prototype? Or just random dummy numberplates for Pathe's benefit?
Re: Stopping the shakes
Posted: Mon Jun 12, 2017 7:13 pm
by firedrake1942
Thats what i was thinking. Certainly seems 'widened' but the plate would seem to predate the first production or what has been acknowledged as the first production ???
Re: Stopping the shakes
Posted: Mon Jun 12, 2017 9:09 pm
by palacebear
Publicity pic in Paul Skilleters book shows black tourer and production light-coloured saloon. Saloon plate is partially obscured but reads NWL43? Page 49 if you have a copy of it.
Re: Stopping the shakes
Posted: Mon Jun 12, 2017 9:46 pm
by firedrake1942
I'll see if i have it.