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> BUILD-OFF CHALLENGE: Tygaboy's '75 LS3, It seemed a good idea at the time...
tygaboy
post Sep 23 2018, 02:38 PM
Post #1221


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It wouldn't be in keeping with my build if I didn't do something at least twice. So why would I expect this to be any different? (IMG:style_emoticons/default/dry.gif)

After removing the stock sump via cutting a large hole in the bottom of the tank, I was able to see how it's attached to the tank. Turns out I could have just drilled out four spot welds. Easier to start over with another tank!

This one had a bit of pocky rust starting on one spot so I figured I'd patch it. I probably
could have just treated it but I'd rather have clean material. Here's what needs to be closed up.


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tygaboy
post Sep 23 2018, 02:40 PM
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And here's the same filler panel (weld through primered) fitted to the "new" tank. You can see the spot weld holes I need to fill. Far simpler than the patch I'd have had to do to the other tank.

Plus, this one's far cleaner on the inside and out.


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restore2seater
post Sep 23 2018, 08:09 PM
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QUOTE(tygaboy @ Sep 23 2018, 03:38 PM) *

It wouldn't be in keeping with my build if I didn't do something at least twice. So why would I expect this to be any different? (IMG:style_emoticons/default/dry.gif)

After removing the stock sump via cutting a large hole in the bottom of the tank, I was able to see how it's attached to the tank. Turns out I could have just drilled out four spot welds. Easier to start over with another tank!

This one had a bit of pocky rust starting on one spot so I figured I'd patch it. I probably
could have just treated it but I'd rather have clean material. Here's what needs to be closed up.



Pocky? (IMG:style_emoticons/default/confused24.gif)
Had to look that one up. Japanese snack food?
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tygaboy
post Sep 23 2018, 08:36 PM
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Patch in place...


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tygaboy
post Sep 23 2018, 08:36 PM
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Fuel pump plate welded in. Still need to fill the spot weld holes and the original fuel in/outlets but I feel like I made some progress this weekend!


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tygaboy
post Sep 23 2018, 08:55 PM
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QUOTE(restore2seater @ Sep 23 2018, 07:09 PM) *

QUOTE(tygaboy @ Sep 23 2018, 03:38 PM) *

It wouldn't be in keeping with my build if I didn't do something at least twice. So why would I expect this to be any different? (IMG:style_emoticons/default/dry.gif)

After removing the stock sump via cutting a large hole in the bottom of the tank, I was able to see how it's attached to the tank. Turns out I could have just drilled out four spot welds. Easier to start over with another tank!

This one had a bit of pocky rust starting on one spot so I figured I'd patch it. I probably
could have just treated it but I'd rather have clean material. Here's what needs to be closed up.



Pocky? (IMG:style_emoticons/default/confused24.gif)
Had to look that one up. Japanese snack food?


I was going for "pock mark-ish". You know, pocky!
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restore2seater
post Sep 23 2018, 09:05 PM
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QUOTE(tygaboy @ Sep 23 2018, 09:55 PM) *

QUOTE(restore2seater @ Sep 23 2018, 07:09 PM) *

QUOTE(tygaboy @ Sep 23 2018, 03:38 PM) *

It wouldn't be in keeping with my build if I didn't do something at least twice. So why would I expect this to be any different? (IMG:style_emoticons/default/dry.gif)

After removing the stock sump via cutting a large hole in the bottom of the tank, I was able to see how it's attached to the tank. Turns out I could have just drilled out four spot welds. Easier to start over with another tank!

This one had a bit of pocky rust starting on one spot so I figured I'd patch it. I probably
could have just treated it but I'd rather have clean material. Here's what needs to be closed up.



Pocky? (IMG:style_emoticons/default/confused24.gif)
Had to look that one up. Japanese snack food?


I was going for "pock mark-ish". You know, pocky!


Well, I guess you're into fabrication so....
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tygaboy
post Sep 28 2018, 07:17 PM
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Next up is relocating the fuel filler.
Rough cut of the mounting plate fresh off the plasma table to check placement...


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tygaboy
post Sep 28 2018, 07:19 PM
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I'm running a Holley HP ECU so I figured they deserved at least a little bit of credit.
It's actually quite a nice piece.


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worn
post Sep 28 2018, 08:11 PM
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QUOTE(ValcoOscar @ Sep 2 2018, 06:52 AM) *

QUOTE(tygaboy @ Sep 2 2018, 06:45 AM) *

Then moved on to making a new plate to mount the in-tank fuel pump. This will get welded to the tank in place of the filler, which will be relocated.
Using the plasma table really does feel like cheating.


Nice Chris-

If using a plasma table makes you a feel like a cheater, I'm like Kent. A repeat offender relying on some of my shop talent when pressed. Your creativity is mind blowing. Love this thread.

Oscar

@76-914

To me it certainly is cheating. But that is because I don’t have the table but you do. I say cheat em while you can.
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FourBlades
post Sep 29 2018, 06:07 AM
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This is such a great build. It is a learning experience to follow it! (IMG:style_emoticons/default/first.gif)

I never knew I needed a plasma table but there is no doubt now. (IMG:style_emoticons/default/biggrin.gif)

I need to try making some pieces with my manual press...

Did you mig or tig weld that panel onto the tank?

John
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tygaboy
post Sep 29 2018, 07:06 AM
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QUOTE(FourBlades @ Sep 29 2018, 05:07 AM) *

This is such a great build. It is a learning experience to follow it! (IMG:style_emoticons/default/first.gif)

I never knew I needed a plasma table but there is no doubt now. (IMG:style_emoticons/default/biggrin.gif)

I need to try making some pieces with my manual press...

Did you mig or tig weld that panel onto the tank?

John


Hi John - Thanks for the compliments. It true - everyone needs a plasma table... or a friend who has one!
I'm really pleased by what the press can do. Give it a go, you'll be surprised!

Just be careful or you'll end up like me: I have so much fun messing about with designing the parts and playing with the tools, experimenting, etc., that it takes forever to make actual progress on the build.

But to me, it's about the journey, not the destination.

And that panel was TIG welded.
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tygaboy
post Sep 29 2018, 05:19 PM
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For this location and application, I wanted the plate to be flat across its entire surface so I added a small eyebrow to close the gap where the tank rolls over.


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tygaboy
post Sep 29 2018, 05:20 PM
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Then it's the same drill as before: scribe, body saw to cut the rough opening, drum sand 'til it fits.
Hope to get it welded in tomorrow.


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tygaboy
post Sep 30 2018, 07:41 AM
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Just getting a feel for how it'll all layout, which way to orient the pump / run the fuel and vent lines, etc.


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tygaboy
post Sep 30 2018, 09:49 PM
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Doing what I can to disappear the welds. Should look pretty good after powder coat.


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tygaboy
post Oct 1 2018, 07:31 AM
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Big gulp all done...


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tygaboy
post Oct 6 2018, 04:58 PM
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On to the hydraulics. I have to get the reservoir lines into the cockpit as the Tilton pedal M/Cs live right on the back of the assembly.

So first version is figure where to drill the hole, drill it, install grommet and install the first line.

Simple enough. But I'm not sure I like the 90 degree bend.


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tygaboy
post Oct 6 2018, 05:01 PM
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So, just to see, I fabbed up a panel that adds an angle and used 45 degree fittings.
This solution would be more work but I do like it. We shall see...


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tygaboy
post Oct 6 2018, 05:03 PM
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Mocked into place. I'd weld in end panels to fully close things off.


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