Author Topic: New Car in Aus  (Read 13960 times)

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Offline fabr

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Re: New Car in Aus
« Reply #75 on: July 08, 2015, 07:10:24 AM »
Looking great,Simon. For that tube DS is wanting you to put in,make it removable if it is in the way by using camburg clamps.  You need that tube,in our opinion.   
« Last Edit: July 08, 2015, 07:18:10 AM by fabr »
"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

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"I fear the day that technology will surpass our human interaction. The world will have a generation of idiots" Albert Einstein  (IT'S OFFICIAL THAT DAY IS HERE NOW!)

Offline dsrace

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Re: New Car in Aus
« Reply #76 on: July 08, 2015, 08:44:53 PM »
that will work
Don't never argue with an Idiot!
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Offline fastcorvairs

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Re: New Car in Aus
« Reply #77 on: July 09, 2015, 08:39:16 AM »
These are good, but be forewarned.  If they are in a stressed area they need to have a radius put in the corners.

The bottom picture is the way I had to fix it after the break. 
« Last Edit: July 09, 2015, 08:42:21 AM by fastcorvairs »

If I believe I cannot do something it makes me incapable of doing it. But when I believe that I can, then I acquire the ability to do it , even if I didn't have it at the beginning.

Offline Simon

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Re: New Car in Aus
« Reply #78 on: July 30, 2015, 02:56:27 AM »
A bit more. Logbook application in. 2 weeks to finish a millions jobs. Some of it is going to be pretty rough for the first event. Couldn't be happier with how the midboards turned out. Hopefully ball bearings are good enough.

Look closely for the rear shock stiffener  ;D.

Offline fabr

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Re: New Car in Aus
« Reply #79 on: July 30, 2015, 05:49:13 AM »
 8) 8)  8) 8)
"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
"I fear the day that technology will surpass our human interaction. The world will have a generation of idiots" Albert Einstein  (IT'S OFFICIAL THAT DAY IS HERE NOW!)

Offline Simon

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Re: New Car in Aus
« Reply #80 on: August 20, 2015, 04:00:34 AM »
First test of the car on the weekend. Everything went according to plan - even managed to drive the car back on at the end of the event.

Car has plenty of poke with the zx14. Home made gearbox performed flawlessly. Same with the midboards.

Tore down the gearbox and checked the internals after the event. Chain tension needs adjusting slightly, but otherwise all good. Dogs are perfect. I done a bit of grinding learning the best way to select forwards and reverse. Consequently found a small amount of damage on the engagement face of the reverse gears. These were cheap off the shelf items I done a home heat treatment on, so I'd say they fared well.

Offline fabr

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Re: New Car in Aus
« Reply #81 on: August 20, 2015, 05:54:27 AM »
Sounds great. What provision is there for chain adjustment?
"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
"I fear the day that technology will surpass our human interaction. The world will have a generation of idiots" Albert Einstein  (IT'S OFFICIAL THAT DAY IS HERE NOW!)

Offline Simon

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Re: New Car in Aus
« Reply #82 on: August 20, 2015, 06:03:27 AM »
Diff bearing housings are bored eccentrically. I rotate the housing a set of holes to adjust the chain.

Offline Yummi

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Re: New Car in Aus
« Reply #83 on: August 20, 2015, 08:05:17 AM »
Every time one of you takes a new ride out, I am in awe.  Some folks here have mad skills.  Me, not so much.  Congrats on a good shake down run.
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Offline fabr

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Re: New Car in Aus
« Reply #84 on: August 20, 2015, 09:47:41 AM »
Diff bearing housings are bored eccentrically. I rotate the housing a set of holes to adjust the chain.
Is the chain in the pic in need of a one hole adjustment or more than one hole? Or will it need more slack first? I guess what I'm asking also is how many adjustments will be available as the chain wears. I would think that after this initial break in it might not much further adjustment. Is that your thinking?
"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
"I fear the day that technology will surpass our human interaction. The world will have a generation of idiots" Albert Einstein  (IT'S OFFICIAL THAT DAY IS HERE NOW!)

Offline fabr

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Re: New Car in Aus
« Reply #85 on: August 20, 2015, 09:49:20 AM »
Every time one of you takes a new ride out, I am in awe.  Some folks here have mad skills.  Me, not so much.  Congrats on a good shake down run.
Maybe so but , you seem to know what works and what doesn't pretty much even if you don't do the actual work as much as some of us do.
"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
"I fear the day that technology will surpass our human interaction. The world will have a generation of idiots" Albert Einstein  (IT'S OFFICIAL THAT DAY IS HERE NOW!)

Offline fabr

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Re: New Car in Aus
« Reply #86 on: August 20, 2015, 09:54:42 AM »
Simon, the body looks great now. Much improved from first draft!
"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
"I fear the day that technology will surpass our human interaction. The world will have a generation of idiots" Albert Einstein  (IT'S OFFICIAL THAT DAY IS HERE NOW!)

Offline dsrace

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Re: New Car in Aus
« Reply #87 on: August 20, 2015, 12:34:40 PM »
what size chain are you using inside that box? i would think transfer case chain would be best imo. also what about routing the chain on the inside of the idler?  i really like the design and work!!
Don't never argue with an Idiot!
Because he will drag you down to his level and beat you with experience

Offline Simon

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Re: New Car in Aus
« Reply #88 on: August 20, 2015, 03:17:04 PM »
Thanks very much for the kind comments.

At the moment, I'm at about half way on the chain adjustment. Like you say and in my experience, the chains stretch a little at first, then not so much. What I have been doing is rotating the adjuster until tight and backing off one hole. Even with th chains as is, it performed fine in forwards, but jumped a tooth in reverse where there isn't much engagement. I think a plastic buffer block around the idler would solve that problem in the event the chain is a bit loose.

There are two 530 chains in the box. Transfer case chain would work very well i think, but I didnt use it because the chains and the sprockets are quite expensive and not readily available in aus. I could fit a 2" one in. I designed this so I could buy 1 x 120 link chain and split in half.

Routing the chain on the inside of the idler is definitely better for the engagement, but unfortunately I would get two forwards gears - no reverse.
« Last Edit: August 20, 2015, 03:22:57 PM by Simon »

Offline fabr

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Re: New Car in Aus
« Reply #89 on: August 20, 2015, 03:35:48 PM »
Transfer case or silent chain and gears are expensive as all get out here as well.
"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
"I fear the day that technology will surpass our human interaction. The world will have a generation of idiots" Albert Einstein  (IT'S OFFICIAL THAT DAY IS HERE NOW!)