Idle Air bleed Tube- Farmall 450

Posted by IHank on December 13, 2001 at 19:06:13 from (216.51.140.182):

Carb Experts- Please share any info possible on this one.

I took apart the carb on my 1957 F-450 for cleaning and whatever it might need, just a routine overhaul while the tractor is down for other work. Many years of sandstone like stuff came off the outside of the carb while in some kinda cooker tank at the lawn & garden equipment shop uptown. The rest of the grunge was blasted away by Gummout carb cleaner from a pressure can.

All went well 'till I gave the idle air bleed tube a blast of pressurized cleaner... Yep, it popped outta the needle nose pliers and vanished into the grass and leaves on LZ Knee, my secluded hide out. Using that strong aromatic solvent outside was my only option and it worked great from a health issues standpoint.

A big problem came to be that little copper tube would not be found and picked up by my magnet on a stick gadget. So, off to my local Case/IH dealer's parts counter. There the man pulled it up on his computer microfische. Item 27A, idle air bleed, p/n blah blah blah. It looked like an easy stock order item from the Kansas City depot, with delivery early next week. If Kansas City ain't got it another depot will take over the order. SOLD! ORDER IT!

I can't believe my good luck! The purpose of my question here & now is to back up that luck.

The copper tube looked to be about 1/8" diameter and about 3/4" long. It had a short thread on one end and a screwdriver slot in the other. The threaded end screwed into the carb bowl casting, with the slotted end sticking up into a small cavity in the upper casting.

The big question- What is the drill size of the air bleed hole inside that little tube?

If the order deal craps out I'll have to fabricate that tube. I have the tools and materials and am quite capable of doing so. The one thing I ain't got is the detail of that air bleed hole.

Anybody with information is invited to post it back here. Or, if you wish you can reply via my e-mail link. Please and many thanks in advance.

Or... Is now the time to give the carb and manifold to the iron pile and move on with plan B, a multi-fuel throttle body EFI system? IHank in Iowa.

Follow Ups:

• Re: Idle Air bleed Tube- Farmall 450 IH-NEAL 17:55:42 12/16/01 (0)
• Re: Idle Air bleed Tube- Farmall 450 Farmer-Gene 03:13:33 12/14/01 (0)
• Re: Idle Air bleed Tube- Farmall 450 J. D. Humm 02:18:36 12/14/01 (0)
• Re: Idle Air bleed Tube- Farmall 450 Alvin NE WI 19:17:00 12/13/01 (1)
  • Re: Re: Idle Air bleed Tube- Farmall 450 IHank 04:04:57 12/14/01 (0)

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