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Old 09-23-2016, 10:40 AM   #791
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Why am I not able to post photos today?
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Millicent The Bus - roof raised two feet, toy-hauler tailgate.
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Old 09-23-2016, 06:29 PM   #792
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Quote:
Originally Posted by EastCoastCB View Post
LOL its like disney but four times the price.
now that's funny
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Old 09-23-2016, 07:02 PM   #793
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Right on, Elliott! I went to BRC in 1999 and 2009 - wish I go go back more often, but at least I have Flipside(Austin regional burn) and Myscheivia (North TX regional burn) to be able to keep my burnin' on! A great way for newcomers is to check out a regional burn to "test the waters". We are always welcoming to new people and you can enjoy it on a smaller, less-expensive scale...

John
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Old 11-21-2016, 07:16 PM   #794
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Join Date: Oct 2005
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A couple months ago, I mentioned that the power steering is failing.
So far I have replaced the filter in the reservoir, and also the supply hose from reservoir to pump, which could be subject to collapsing inside from low pressure. (You may have noticed that bottom radiator hoses have a coil spring inside. That's to keep it open if there's a bit of a vacuum in there.) But both were fine.

Then I remembered... in September... I inadvertently lowered the tilt steering column to lower than usual, and the steering became worse. I drove a dozen miles at no more than 40 mph because it was downright difficult to follow the road.

When I returned the column to its usual mid-position, it acted like before -- power steering failing at idle but OK at speed.

And then I forgot about that episode.

Now I'm thinking.... I must take her for a spin with the column all the way up against the dash -- with the U-joint at the bottom of the column straight.
What if it's the U-joint binding up? It's under a rubber bellow, so my next step is to loosen that and take a peak under it.
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Old 11-21-2016, 09:08 PM   #795
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a U-joint when bent.. in fact the further bent.. has points in its turn where the velocity is higher and the the velocity is lower..

if you bend that U-joint closer to the 90 degree mark.. the steering wheel will be harder to turn at the point of High velocity ..

its hard to explain in words.. but open up your socket set.. pull out your U-joint and put an extension on each end of it.. hold it in 2 hands.. imagine the left hand is the steering shaft and the right hand is the steering wheel side of the shaft.. if you hold the U-joint straight and pin the right hand you will notice the shaft in your left hand spins at a constant speed and at the same speed as your right hand..

now move the right hand so that the U-joint is bent like a wheel tilted down and turn it... you will notice that the right hand gets harder and easier to turn and that the shaft in the left hand speeds up and slows down as you turn...

if it were a steering wheel then whe the left hand is trying to spin faster, it will take more torque input at the wheel to turn the shaft.. meanign the wheel is harder to turn.. continue to turn the wheel and you'll notice that the wheel gets easier to turn for part of the turn... then hard again...

thats how a U-joint acts...

sorry for my poor explanation, I do not have a picture or diagram to show you.

-Christopher
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Old 11-21-2016, 09:20 PM   #796
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You are of course right. And I know this from decades ago, in my automobile technician training. Also, I once built a street rod where I would feel the steering ratio change as I turned the wheel -- too much angle. So I reworked it to better alignment. Never take shortcuts, yes.

And this is why the U-joints of a driveshaft -- any shaft with two u-joints -- must be phased correctly, and have the same angle at both ends.

Yup.

But if this U-joint is binding up, it must be failing -- bone dry, worn, whatnot. Bet I'll know something as soon as I lift that rubber boot.
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Old 11-21-2016, 10:46 PM   #797
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New first post

I was wondering if with the roof raise would there be room to add a bunk over the drivers area. Possibly that hinged at the front and could be angled up out of way when not needed. I am hoping to relocate my entrance door.
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Old 11-21-2016, 10:57 PM   #798
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FWIW...when I was building my steering system (from scratch), my research indicated that the absolute difference in angle on any steering segment joined by U-joints should never exceed 30 degrees. That was the number I consistently found among everything from rat dodders to F1 chassis builders. And they all agreed...less was better. Might check those angles. Maybe someone else has some more data.
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Old 11-21-2016, 11:21 PM   #799
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Join Date: Oct 2005
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Oh absolutely. 30 degrees is an awful bleepin' lot for any U-joint.
Yeah, I built two cars from scratch -- meaning I designed and fabricated the frame and where everything went on it -- and learned all kinds of useful stuff in the process. Great fun.

Millicent does in fact have a bunk over the driver's seat. Though it is lengthwise. It is hinged to the left wall and folds up to clear the driver's head. It's kind'a my Captain's bunk.

I have had it at three different heights, and nothing is satisfactory. This is one of the factors in my decision to raise the roof further.

With the ceiling high enough, I could put this bunk sideways as you suggest -- and also other bunks sideways, safely above people's heads.

And... in that case, I could make a bunk or two movable -- slide fore and aft on simple tracks -- to make single and double beds as needed. This is desirable with our varied assortment of travel companions, but not realistic now.

All that said, I am fond of the lengthwise Captain's bunk, and will probably keep it that way. But as always, I enjoy experimenting, so anything is possible.
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Old 11-21-2016, 11:26 PM   #800
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With a little more height you could put in a loft
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