[ARC5] BC-454-B Dymamotor Question

J. Forster jfor at quikus.com
Sat Jan 19 16:28:50 EST 2013 

You mean CA has omitted regulating something? Astounding. CA is regulation
central.

-John

===============

> John,
>
> In Washington and California there is no safety check. On a smog check.
>
> Kids here do drive cars/trucks over 25 years old.
>
> Bob Macklin
> K5MYJ
> Seattle, Wa.
> "Real Radios Glow In The Dark"
> ----- Original Message -----
> From: "J. Forster" <jfor at quikus.com>
> To: "Bob Macklin" <macklinbob at msn.com>
> Cc: "Mike Hanz" <aaf-radio-1 at aafradio.org>; <arc5 at mailman.qth.net>
> Sent: Saturday, January 19, 2013 10:38 AM
> Subject: Re: [ARC5] BC-454-B Dymamotor Question
>
>
>>I doubt they have exempted the safety standards and I doubt that many
>> kids
>> could affort a 25 year old hotrod, unless Bill Gates is their daddy,
>> judging from what they sell for.
>>
>> In the northeast, cars are rust buckets long before 25 years.
>>
>> -John
>>
>> ================
>>
>>
>>> In Washington and California they have a 25 year rule. You can do
>> anything you want to a car over 25 years old.
>>>
>>> In my area we have several ORIGINAL hot rods some with flathead Ford
>>> engines. They have no smog equipment and no inspection is required.
>>>
>>> Bob Macklin
>>> K5MYJ
>>> Seattle, Wa.
>>> "Real Radios Glow In The Dark"
>>> ----- Original Message -----
>>> From: "J. Forster" <jfor at quikus.com>
>>> To: "Mike Hanz" <aaf-radio-1 at aafradio.org>
>>> Cc: <arc5 at mailman.qth.net>
>>> Sent: Saturday, January 19, 2013 10:21 AM
>>> Subject: Re: [ARC5] BC-454-B Dymamotor Question
>>>
>>>
>>>> One reason for kids not working on cars anymore is the heavy boot of
>>>> government. You cannot get plates without safety inspections and
>>>> emissions
>>>> checks, and if you modify anything, you will likely fail those tests.
>>>>
>>>> Even lawn mowers are regulated, so go-carts may be illegal in some
>>>> places.
>>>>
>>>> So, government regulations have essentially stopped any
>>>> experimentation
>>>> or
>>>> innovation.
>>>>
>>>> Lack of any hands-on skills is just collateral damage.
>>>>
>>>> YMMV,
>>>>
>>>> -John
>>>>
>>>> =====================
>>>>
>>>>
>>>>
>>>>> I have to agree with John on this. Reference the dynamotors, the
>>>>> manuals
>>>>> are full of notes like the need to maintain surgical cleanliness of
>>>>> bearings, not spinning them with compressed air, and using a sleeve
>>>>> and
>>>>> solid support to press on new bearings, just as examples.  It's not
>>>>> rocket science.  The fit used with all the dynamotors I've worked on
>>>>> is
>>>>> considered an HN 1 "light drive fit" in the interference fit grades
>>>>> listed in Machinery's Handbook, so it doesn't take a big hydraulic
>>>>> press
>>>>> if the shaft is clean and polished.  I use the old WWII arbor press
>>>>> shown at http://aafradio.org/garajmahal/arbor_press.htm and it
>>>>> presses
>>>>> the bearings on without any real effort at all - just a bit of care.
>>>>> The
>>>>> training textbooks are surprisingly comprehensive in theory, unlike
>>>>> the
>>>>> ones in use now that are simply gigantic flowsheets that doesn't take
>>>>> a
>>>>> lot of training or functional knowledge to follow...this from my son,
>>>>> a
>>>>> former ET on boomers.
>>>>>
>>>>> My father was a budget guy for the AFSWP (later DASA) in Albuquerque
>>>>> after the war, but he worked on his own car (replaced all the pistons
>>>>> and crankshaft at least twice while I was growing up), repaired just
>>>>> about anything in the house, and was a whiz at cobbling together
>>>>> something to make a recalcitrant device useful again.  Most of his
>>>>> friends were that way as well.  Popular Science and Popular Mechanics
>>>>> were full of building projects for father and son that involve
>>>>> mangling
>>>>> wood or metal.  Maybe it was the Great Depression that made them that
>>>>> way...  I'm having a hard time finding any kids today that have that
>>>>> kind of "get your hands dirty" interest.
>>>>>
>>>>>   - Mike
>>>>>
>>>>> On 1/19/2013 12:20 PM, J. Forster wrote:
>>>>>> I wouldn't bet on that assumption.
>>>>>>
>>>>>> In the 1920s and 1930s, Americans were not infected with afluenza.
>>>>>> Also,
>>>>>> technology was a lot simpler, and much more repairable.
>>>>>>
>>>>>> When a radio or toaster or table lamp broke, they fixed it or had it
>>>>>> fixed. Also, many more grew up on farms, where machinery had to be
>>>>>> repaired. Kids bought old cars, like Model Ts and As.
>>>>>>
>>>>>> The point is that skills to fix machinery were far more widespread
>>>>>> than
>>>>>> today.
>>>>>>
>>>>>> If your latest iToy breaks, it instantly becomes iPoo. If your car
>>>>>> stops
>>>>>> running, do you have any idea how to fix it, other than filling the
>>>>>> gas
>>>>>> tank? Can you even gat a wiring diagram or the 'puter diagnostic
>>>>>> codes.
>>>>>>
>>>>>> Anyone who can strip and fix an engine, could probaly be trained in
>>>>>> a
>>>>>> few
>>>>>> weeks to reliably refurbish dynos.
>>>>>>
>>>>>> Also, there were plenty of radio repair shops in civilian life
>>>>>> pre-war.
>>>>>> I'm certain some of those guys went into the services. Fixing a
>>>>>> table
>>>>>> radio was not very different than an ARC-5 receiver.
>>>>>>
>>>>>> There are pretty comprehensive TMs from the era on most things
>>>>>> electronic.
>>>>>> They would certainly give any reasonably intelligent person a fair
>>>>>> grounding in the theory. You don't need to be a design engineer to
>>>>>> understand most circuits. Analysis is far easier than synthesis.
>>>>>>
>>>>>> YMMV,
>>>>>>
>>>>>> -John
>>>>>>
>>>>>> ===================
>>>>>>
>>>>>>
>>>>>>
>>>>>>> I would have assumed most of the "techs" were none too savvy in
>>>>>>> that
>>>>>>> era.
>>>>>>> Ball bearings in general would have been quite novel in those days,
>>>>>>> and
>>>>>>> even
>>>>>>> now, most people don't know how to handle, install, clean,
>>>>>>> lubricate,
>>>>>>> or
>>>>>>> pre-load them properly.  Radio specialists during the great war
>>>>>>> were
>>>>>>> processed through signal corps school in a not too effective
>>>>>>> fashion,
>>>>>>> and
>>>>>>> even if they did retain most of what they were taught, they had
>>>>>>> precious
>>>>>>> little experience when they hit their duty station, and not too
>>>>>>> much
>>>>>>> time
>>>>>>> to
>>>>>>> hone those skill afterward.  They probably did the best they could
>>>>>>> by
>>>>>>> swapping parts.  I would assume the "tough dog" problems were
>>>>>>> relegated
>>>>>>> to
>>>>>>> the junk pile.  The great logistics monster that was created during
>>>>>>> WWII
>>>>>>> eventually made deep troubleshooting and repair unnecessary
>>>>>>> (Witness
>>>>>>> the
>>>>>>> huge amount of surplus now in our hands that causes us to ponder
>>>>>>> these
>>>>>>> things now, some seventy years on.
>>>>>>>
>>>>>>>
>>>>>>> Scott W7SVJ
>>>>>>>
>>>>>>> -----Original Message-----
>>>>>>> From: arc5-bounces at mailman.qth.net
>>>>>>> [mailto:arc5-bounces at mailman.qth.net]
>>>>>>> On
>>>>>>> Behalf Of Kenneth G. Gordon
>>>>>>> Sent: Friday, January 18, 2013 5:33 PM
>>>>>>> To: ARC5 at mailman.qth.net
>>>>>>> Subject: Re: [ARC5] BC-454-B Dymamotor Question
>>>>>>>
>>>>>>> On 18 Jan 2013 at 16:22, WA5CAB at cs.com wrote:
>>>>>>>
>>>>>>>> Probably because the field installation of the bearings was done
>>>>>>>> with
>>>>>>>> a hammer and something like a 1/2" socket.  And they bent the
>>>>>>>> outer
>>>>>>>> shield and/or brinnelled the races.
>>>>>>> Well, I had thought of that too, but I figured that not every radio
>>>>>>> tech
>>>>>>> in
>>>>>>> those days was a dolt. ;-)
>>>>>>>
>>>>>>> Ken W7EKB
>>>>>>> ______________________________________________________________
>>>>>>> ARC5 mailing list
>>>>>>> Home: http://mailman.qth.net/mailman/listinfo/arc5
>>>>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>>>>> Post: mailto:ARC5 at mailman.qth.net
>>>>>>>
>>>>>>> This list hosted by: http://www.qsl.net
>>>>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>>>>
>>>>>>> ______________________________________________________________
>>>>>>> ARC5 mailing list
>>>>>>> Home: http://mailman.qth.net/mailman/listinfo/arc5
>>>>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>>>>> Post: mailto:ARC5 at mailman.qth.net
>>>>>>>
>>>>>>> This list hosted by: http://www.qsl.net
>>>>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>>>>
>>>>>>>
>>>>>>
>>>>>> ______________________________________________________________
>>>>>> ARC5 mailing list
>>>>>> Home: http://mailman.qth.net/mailman/listinfo/arc5
>>>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>>>> Post: mailto:ARC5 at mailman.qth.net
>>>>>>
>>>>>> This list hosted by: http://www.qsl.net
>>>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>>>
>>>>>>
>>>>>
>>>>> ______________________________________________________________
>>>>> ARC5 mailing list
>>>>> Home: http://mailman.qth.net/mailman/listinfo/arc5
>>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>>> Post: mailto:ARC5 at mailman.qth.net
>>>>>
>>>>> This list hosted by: http://www.qsl.net
>>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>>
>>>>>
>>>>
>>>>
>>>> ______________________________________________________________
>>>> ARC5 mailing list
>>>> Home: http://mailman.qth.net/mailman/listinfo/arc5
>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>> Post: mailto:ARC5 at mailman.qth.net
>>>>
>>>> This list hosted by: http://www.qsl.net
>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>
>>>
>>>
>>
>>
>>
>
>

More information about the ARC5 mailing list