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#Post#: 6091--------------------------------------------------
Re: old number one
By: RhysN Date: March 20, 2022, 11:21 am
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Nothing ventured, nothing gained.
I appreciate your trying.
#Post#: 6585--------------------------------------------------
Re: old number one
By: guest274 Date: May 1, 2022, 9:02 am
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An update on my CK. It's running and steering and braking
(just). The floor is 20mm shuttering ply bolted onto the chassis
from underneath using coach bolts. The seat is also 20mm ply and
is hinged to give access to the oil filler/dipstick and the
on/off switch. Steering column made from tubing off a 6ft table.
steering wheel is 2 pieces of 6mm ply glued together. I am
hoping to finish it with cedar round the circumference. Track
rods are aluminium tube tapped for 8mm track rod ends.
The body is next. I don't foresee any problems with it except
for the bullnose. Anybody got any ideas how to achieve that
shape?
#Post#: 6586--------------------------------------------------
Re: old number one
By: Jimr1999 Date: May 1, 2022, 9:06 am
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Coming on well MorrisGarage! Brings a whole new meaning to
ladder frame chassis :) You will have that done before long at
that rate.
#Post#: 6590--------------------------------------------------
Re: old number one
By: Adrian Date: May 2, 2022, 7:12 am
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yes, ts looking very good. The ladder idea is a cracker.
I would like to make an observation regarding the steering
linkages however. I think the manner by which you have fixed the
track-rods to the steering knuckles on the hub has a couple of
safety issues. The bolt linking the track-rods to the hub is far
too long and the feedback torque will bend it badly and after a
lap or two will break it apart by the steering hub. Steering
will be very imprecise too.
There is a very wise 'rule' to follow in this area and that is
to make all linkages as short as possible and NEVER weld
anything if at all possible. Looks like you have welded a bolt
to a bolt.
I'm sorry to say it but I think you need to re-think your
steering design.
This is one of those areas where you can run into trouble
because your making great progress on everything else and
suddenly you have painted yourself into a corner as it were.
Don't be disillusioned by this, many of us do it al the time! I
certainly do, right now I have a similar issue with the exhaust.
Great job though!
:>)
Essentially, the same rules apply to the brakes too.
#Post#: 6596--------------------------------------------------
Re: old number one
By: Graham Hill Date: May 2, 2022, 7:37 am
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[quote author=Morrisgarage link=topic=752.msg6585#msg6585
date=1651413740]
The body is next. I don't foresee any problems with it except
for the bullnose. Anybody got any ideas how to achieve that
shape?
[/quote]
Jim Tanner made a smashing job with the Dodge by using his old
helmet !
#Post#: 6603--------------------------------------------------
Re: old number one
By: jim Date: May 3, 2022, 12:07 am
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Thanks Graham, I am rather pleased with the look of my helmet.
If anyone would like a drawing of it, I could lay it out on a
piece of paper and draw round it so you'd get the correct scale
and shape.
#Post#: 6608--------------------------------------------------
Re: old number one
By: guest274 Date: May 3, 2022, 3:22 am
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[quote author=Adrian link=topic=752.msg6590#msg6590
date=1651493570]
I'm sorry to say it but I think you need to re-think your
steering design.
[/quote]
Adrian, I appreciate your comments and advice. I'm not sure how
to do it yet but I foresee a lot of "what about doing" and "if
that goes there will it work ?"
#Post#: 6609--------------------------------------------------
Re: old number one
By: guest274 Date: May 3, 2022, 3:26 am
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[quote author=Graham Hill link=topic=752.msg6596#msg6596
date=1651495046]
[quote author=Morrisgarage link=topic=752.msg6585#msg6585
date=1651413740]
The body is next. I don't foresee any problems with it except
for the bullnose. Anybody got any ideas how to achieve that
shape?
[/quote]
Jim Tanner made a smashing job with the Dodge by using his old
helmet !
[/quote]
Interesting. What sort of helmet was it?
#Post#: 6610--------------------------------------------------
Re: old number one
By: kon8000 Date: May 3, 2022, 3:43 am
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Might be a silly (young'un) question, but what does a bullnose
look like? Do you have any pics of the inspiration car please?
Loving the work so far, you've done very well in such a short
time, I bet you must be pleased. Love the ladder for the ladder
frame. It looks like ally... is it worth putting in thin
plastic/rubber between the ally and the steel brackets, to stop
it corroding together? Not sure how long that takes to happen
when you have steel pressed up against ally.
#Post#: 6611--------------------------------------------------
Re: old number one
By: guest274 Date: May 3, 2022, 4:59 am
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[quote author=kon8000 link=topic=752.msg6610#msg6610
date=1651567398]
Might be a silly (young'un) question, but what does a bullnose
look like? Do you have any pics of the inspiration car please?
Loving the work so far, you've done very well in such a short
time, I bet you must be pleased. Love the ladder for the ladder
frame. It looks like ally... is it worth putting in thin
plastic/rubber between the ally and the steel brackets, to stop
it corroding together? Not sure how long that takes to happen
when you have steel pressed up against ally.
[/quote]
The inspiration car is "old number one" which was built in 1925
and was the first MG (badged as a Morris) made specifically for
competition. I chose it because I'm a Morris. There is a good
video of it on Youtube. The chassis is made from an aluminium
ladder and I did consider corrosion from dissimilar metals but
as I understand it, there needs to be an electrolyte between the
two metals to conduct a charge. Water seems to be the only
contender for that and as I don't intend to drive it in the
rain, then in theory nothing should happen.
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