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Old 05-02-2021, 08:07 PM   #611 (permalink)
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Gaptooth (retired) - '00 Honda Insight
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Quote:
Originally Posted by MetroMPG View Post
So the spring that broke was chopped down a bit?



If it's like the chop job on my Firefly & Metro, the removed coil(s) includes the last, flat loop that contacts the perch. Seems possible there's might be enough leverage due to the chopped coil angle against the perch that it fatigues over time.
When I chopped my coils, I cut them from the bottom, specifically to avoid that! Oh well.

So, in addition to my springs breaking, rust took my receiver too. I was pulling a trailer full of pressure treated lumber home, when the support beam that runs under the car gave out, causing my rear bumper bar to be twisted off the car. I threw the 1600+ lbs of wood in the hatch and drove home with the bumper cover pulling the empty trailer.










Oops!

Years back, when I put my other hitch receiver setup together, I had my father do the welds. He's not here to do them for me anymore, so went to Harbor Freight and picked up a nice welder and decided to teach myself welding. If someone else can do it, I can too, right?

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Old 05-02-2021, 08:12 PM   #612 (permalink)
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Gaptooth (retired) - '00 Honda Insight
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90 day: 54.26 mpg (US)

Such Fit - '07 Honda Fit Sport
90 day: 41.27 mpg (US)

Connect - '15 Ford Transit Connect XL
90 day: 20.83 mpg (US)

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Saturday evening I did a practice weld, then cut it up to see how it looked inside. Seemed to come out great! Clearly not rocket science.








So, I went ahead and welded up a new brace for my receiver, one that won't run under the car and cause aerodynamic disturbance, or be (as) exposed to road salt.



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Old 05-02-2021, 08:14 PM   #613 (permalink)
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Gaptooth (retired) - '00 Honda Insight
Team Honda
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90 day: 54.26 mpg (US)

Such Fit - '07 Honda Fit Sport
90 day: 41.27 mpg (US)

Connect - '15 Ford Transit Connect XL
90 day: 20.83 mpg (US)

K-sight - '00 Honda K-sight
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Got it painted up and mounted on the car. It supported my jumping up and down on the end of the ball, so it gets a pass.

I'm shocked at how easy this all was, and wonder why I didn't pick up a welder sooner. I'll need to get some gas and a spool gun and try my hand at aluminum.







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Old 05-03-2021, 09:19 AM   #614 (permalink)
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Steel is forgiving, aluminum is picky and fast , needs flux. Good luck
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Old 05-04-2021, 05:36 PM   #615 (permalink)
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Gaptooth (retired) - '00 Honda Insight
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Such Fit - '07 Honda Fit Sport
90 day: 41.27 mpg (US)

Connect - '15 Ford Transit Connect XL
90 day: 20.83 mpg (US)

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This afternoon I flashed a new experimental lean burn tune. From 1000-2500rpm, 0-500mbar, I'm running 1.2 lambda (17.62:1), and from 5-600 it's 1.1 lambda (16.17:1), with 5 and 2.5 of ignition timing added respectively.

Even at that lean AFR, cruising, I'm seeing only around 360mbar, and I can climb pretty steep highway grades at <500mbar in 6th.

On my way home from shopping I averaged a hair over 64mpg, with a target speed of just over 50mph. I'd say in exactly equivalent conditions, this tune is worth very roughly 3-5mpg.
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Old 05-11-2021, 10:54 AM   #616 (permalink)
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Nice work on the hitch. I used to live in the East. I sure don't miss the rust.

FWIW NHOU (New Hampshire Oil Undercoating) sells spray cans of their product. You may want to shoot some into the inside of the tubing that may not be protected by spray paint. It is supposed to be biodegradable and safe for the environment (smells like lanolin to me).
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The power needed to push an object through a fluid increases as the cube of the velocity. Mechanical friction increases as the square, so increasing speed requires progressively more power.
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Old 05-11-2021, 11:26 AM   #617 (permalink)
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Gaptooth (retired) - '00 Honda Insight
Team Honda
Gen-1 Insights
90 day: 54.26 mpg (US)

Such Fit - '07 Honda Fit Sport
90 day: 41.27 mpg (US)

Connect - '15 Ford Transit Connect XL
90 day: 20.83 mpg (US)

K-sight - '00 Honda K-sight
Team Honda
90 day: 41.4 mpg (US)
Thanks: 2,100
Thanked 1,883 Times in 1,201 Posts
Quote:
Originally Posted by COcyclist View Post
Nice work on the hitch. I used to live in the East. I sure don't miss the rust.

FWIW NHOU (New Hampshire Oil Undercoating) sells spray cans of their product. You may want to shoot some into the inside of the tubing that may not be protected by spray paint. It is supposed to be biodegradable and safe for the environment (smells like lanolin to me).
Thanks!

I've already sprayed a lanolin-based undercoating inside the steel tubing.
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Old Yesterday, 02:19 AM   #618 (permalink)
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That hitch looks bad and I think it's the one with the most rust winch I've ever seen in my life!

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