8BA Flathead crankcase breather tube

[Working Class Zero]

Anyone out there have a 8BA Flathead internal crankcase breather tube. The one that is inside the block on 1949-51 Flathead that feeds to the road draft tube chamber on intake manifold. Ford part #8BA-6759 I believe. Searching rendered no results…

[pistonbroke]

I have one in a cracked block you can have. No rust just greasy. I've never tried pulling one any tricks or advice would be appreciated. Tim

[Working Class Zero]

That would be amazing! I’m not sure if it’s difficult to remove the tube or not as I never had one. I’m sure someone will chime in who has pulled one before? Have a 50 Shoebox with triple carb intake that I noticed had the road breather tube but the breather oil fill hole plugged as well as the mechanical fuel pump flange capped/ blocked with a plate. Assume the motor is not breathing then?! So I am trying to make it right. Going to mechanical pump, breather oil fill and road draft tube. Not sure why some one blocked everything of and only had road draft tube. Isn’t this bad?!

[Phil Gillespie]

Originally Posted by KANE MCAFFER

That would be amazing! I’m not sure if it’s difficult to remove the tube or not as I never had one. I’m sure someone will chime in who has pulled one before? Have a 50 Shoebox with triple carb intake that I noticed had the road breather tube but the breather oil fill hole plugged as well as the mechanical fuel pump flange capped/ blocked with a plate. Assume the motor is not breathing then?! So I am trying to make it right. Going to mechanical pump, breather oil fill and road draft tube. Not sure why some one blocked everything of and only had road draft tube. Isn’t this bad?!

Perhaps they were running an electric fuel pump. And mechanical pump removed and isolated.
Phil NZ

[Working Class Zero]

100% it’s an electric fuel pump, but that does not eliminate the problem of incorrect breathing.

[Pete]

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Originally Posted by Working Class Zero

That would be amazing! I’m not sure if it’s difficult to remove the tube or not as I never had one. I’m sure someone will chime in who has pulled one before? Have a 50 Shoebox with triple carb intake that I noticed had the road breather tube but the breather oil fill hole plugged as well as the mechanical fuel pump flange capped/ blocked with a plate. Assume the motor is not breathing then?! So I am trying to make it right. Going to mechanical pump, breather oil fill and road draft tube. Not sure why some one blocked everything of and only had road draft tube. Isn’t this bad?!

The mod you have was only partially done. To complete it an early fuel
pump /breather stand should have been used. This has the breather/oil fill.

This mod is done usually when an early manifold is used on a late block.
The top end of the tube inside the valley chamber should be cut off so it is
about a half inch below the manifold deck surface also.

[Working Class Zero]

Originally Posted by Pete

The mod you have was only partially done. To complete it an early fuel
pump /breather stand should have been used. This has the breather/oil fill.

This mod is done usually when an early manifold is used on a late block.
The top end of the tube inside the valley chamber should be cut off so it is
about a half inch below the manifold deck surface also.

Yes so... if only an electric fuel pump was used (no mechanical) the pump stand at the rear should have a oil fill/breather or the oil fill/breather could also be at the original front location with the delete plate where pump goes. Correct?

So I am putting the mechanical pump on at rear, oil fill breather at front stock location, and have road draft tube in stock location. all is well yes? just need the missing internal tube. If I find a stock internal tube should it not be correct length? confused by the cut off half inch below manifold deck comment. This would not complete the path to the road tube then???

[Working Class Zero]

Originally Posted by pistonbroke

I have one in a cracked block you can have. No rust just greasy. I've never tried pulling one any tricks or advice would be appreciated. Tim

Are these internal tubes difficult to remove? Does anyone have experience with this?

[Pete]

You only need to shorten the valley tube if you run an early manifold or block both the front holes in a late manifold and run the rear early breather/filler.

[Working Class Zero]

Originally Posted by Pete

You only need to shorten the valley tube if you run an early manifold or block both the front holes in a late manifold and run the rear early breather/filler.

"So I am putting the mechanical pump on at rear, oil fill breather at front stock location, and have road draft tube in stock location. all is well yes? just need the missing internal tube."

Late intake being used 1950 ford flat head with 49-51 Offenhauser intake.

If you block both holes at front as you said you don't have "in and out" only in at rear breather no???