Wynona the wagon's resurrection!

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HRH
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Re: Wynona the wagon's resurrection!

Postby HRH » Sun May 13, 2018 3:51 pm

Yep, vacuum gauge is steady. Next step is checking the intake with the boroscope, then removing the rear carb and seeing whats up. I'm also going to pull off the balance tube and check it.
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flatcat19
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Re: Wynona the wagon's resurrection!

Postby flatcat19 » Mon May 14, 2018 4:10 pm

DRIVEN wrote:I changed my mind. Carbs were a bad idea. Put the EFI back on.



Damn you, like button.
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HRH
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Re: Wynona the wagon's resurrection!

Postby HRH » Mon May 14, 2018 5:51 pm

Fuck that! No EFI. I'm going to install the other set of 4 screw SUs I have and see if the issues return or get better. If that doesn't work, I may do a dual 32/36 setup with the SU adapters. Running out of time before Jethro Tull and Canby. May have to take the truck, dammit, noooooo! I want to drive the wagon!! Maybe I'll just yank the turbo motor out of the race car, get it running with the MoTech and put it in the wagon? ;) As if I didn't have enough projects to do.
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DRIVEN
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Re: Wynona the wagon's resurrection!

Postby DRIVEN » Mon May 14, 2018 6:03 pm

:rofl:
When the only tool you have is a hammer every problem starts to look like a hippy.
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HRH
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Re: Wynona the wagon's resurrection!

Postby HRH » Sun May 20, 2018 6:58 pm

So the three screw carbs were the problem. They look recently rebuilt, not sure what exactly is wrong, but the bird noise appeared again after I swapped the 4 screw set on, then re-installed the 3 screw set because the linkages were better and I thought I was just doing something wrong. The biggest difference I saw was the throttle plates on the 3 screws seemed to be a little too small for the bore. Whereas the 4 screw, I had to tap them out of the bore, they fit that tightly.

I ended up rebuilding the 4 screw carbs with all the nicer linkage of the 3 screws, but I used the butterflies off the original 4 screw with the 3 screw oversized shafts. So now I have no leaks and tight shafts on 4 screws which are nice for float removal anyway, though I already cut off the mounting boss that's in the way of float lid removal on the 3 screws before finding out I still had a bird chirping noise out of the rear carb.

As luck would have it, its a good thing I did that. I barely even touched the head of the screw attaching the butterfly to the throttle shaft on the original 4 screw carb, and the head snapped off! So that was just waiting to break and get sucked into the engine. Got the car pretty well dialed in for idle now. It finally doesn't die. A/C is a problem. Drops rpm by about 300, so I'm going to use that auxiliary vacuum pump from the diesel Ford I had when I was fiddling with cam/vacuum issues on Ugly Betty, and instead I'll run it to the vacuum can on the throttle linkage to make an idle up. So when the AC clutch is engaged, the vacuum pump will start operating and suck the diaphragm to raise the idle by the appropriate amount!

Booyah! :) Still need to go test WOT. May have to get a slightly different needle profile, but either way, the damn 3 screws were the problem all along. I think it was the butterflies not being the correct size for the bore. I can't find anything else wrong with them.
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DRIVEN
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Re: Wynona the wagon's resurrection!

Postby DRIVEN » Mon May 21, 2018 5:04 am

Odd
When the only tool you have is a hammer every problem starts to look like a hippy.
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flatcat19
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Re: Wynona the wagon's resurrection!

Postby flatcat19 » Mon May 21, 2018 7:10 pm

Woohoo.
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Converted_to_datsun
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Re: Wynona the wagon's resurrection!

Postby Converted_to_datsun » Mon May 21, 2018 8:05 pm

Hell Yea! Gotta love su's, always one of the first swaps on my list. Cant wait to see this thing at Canby.

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