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Old 02-16-2019, 11:33 PM   #1
redmodelt
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Default line going to timing gear cover 46 V8

One of Tom's customers brought his A hot rod to the shop on a trailer so he could get help with questions about the body. The engine is a 46 V8. On the timing gear cover, drivers side there is a tube it is cut off that goes in to the casting on left of top. Right now it is just a stub of tube being held in with a flare nut. What might it be? And were did it go to? He hadn't noticed it and was not sure himself. I looked at the Green book, but not knowing what it was did not find it.

Thanks
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Old 02-16-2019, 11:43 PM   #2
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Default Re: line going to timing gear cover 46 V8

On a 38ish it goes to the from the dizzy to intake manifold between the the 5-6 cylinder.

1938, It is a smaller line then the 1/4" fuel copper line.

Vacuum to distributor brake. Later through the timing cover.




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Old 02-17-2019, 12:08 AM   #3
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Default Re: line going to timing gear cover 46 V8

Ok good, it not an oil line and will not be needed for his application. Thank you very much, that is good news that I will pass on to him
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Old 02-17-2019, 11:17 AM   #4
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Default Re: line going to timing gear cover 46 V8

as stated its the vacuum for the distributor. if he has the stock intake manifold the line is available from the vendors. if you need to make a custom line, those are special fittings that crimp the line when tightened up to seal. only place i found any was nos at 3rd gen auto
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Old 02-17-2019, 11:54 AM   #5
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Default Re: line going to timing gear cover 46 V8

It has custom headers, aluminum intake, 2 97's, Edmond heads and Edmond air cleaners. The distributor has been updated too so no vacuum needed, hole will just get plugged.

Thank for the information.
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Old 02-17-2019, 01:22 PM   #6
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Default Re: line going to timing gear cover 46 V8

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You said "drivers side" and "timing cover", that has nothing to do with the distributor. I would guess it is the return line from an early by-pass oil filter. If the filter is removed then the hole can be plugged. The original kits used a banjo fitting and the instructions routed it to the passenger side, but I would think you could mount it elsewhere. Does it look like it is a factory type of connection into the timing cover or a modification?

Note: Bad day at the ranch, LOL. This is all kook-kook.
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File Type: jpg Oil Line Diagram Photo 2.jpg (37.5 KB, 60 views)

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Old 02-17-2019, 03:09 PM   #7
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Default Re: line going to timing gear cover 46 V8

jseery, are you drivin in england, or drivin in america?
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Old 02-17-2019, 06:02 PM   #8
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Default Re: line going to timing gear cover 46 V8

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Originally Posted by JSeery View Post
You said "drivers side" and "timing cover", that has nothing to do with the distributor. I would guess it is the return line from an early by-pass oil filter. If the filter is removed then the hole can be plugged. The original kits used a banjo fitting and the instructions routed it to the passenger side, but I would think you could mount it elsewhere. Does it look like it is a factory type of connection into the timing cover or a modification?
JSeery, All answers so far have confirmed vacuum brake line.
Does this mean you don't bother reading the opinions of others?
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Old 02-17-2019, 06:43 PM   #9
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Default Re: line going to timing gear cover 46 V8

I'm with JSeary. That is a return line from the bypass filter. No kidding.
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Old 02-17-2019, 06:49 PM   #10
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Default Re: line going to timing gear cover 46 V8

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I'm with JSeary. That is a return line from the bypass filter. No kidding.
JSeery's picture is the oil filter line, agreed, and is on an earlier engine with the football distributor. The engine in question is a '46 with the rabbit ear distributor.
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Old 02-17-2019, 06:52 PM   #11
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Default Re: line going to timing gear cover 46 V8

On my '46 to '48, 59 series engine, the stock timing gear cover has a threaded hole on top left side that accepts a vacuum line, and the opposite end of this line connects in the intake manifold. There is a cast or drilled hole inside the timing gear cover that completes the vacuum connection through a small hole in front of cover to a small hole in back of the crab/rabbit ear type distributor. This completes the connection to the vacuum brake inside the distributor.

The oil filter return line was connected to a threaded fitting on the left sidewall of the oil pan.
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Old 02-17-2019, 07:14 PM   #12
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Default Re: line going to timing gear cover 46 V8

"Does it look like it is a factory type of connection into the timing cover" Yes it is inline with a rib cast in the cover. Not for a banjo fitting, small flare nut and maybe 1/4OD tube.
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Old 02-17-2019, 08:00 PM   #13
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Default Re: line going to timing gear cover 46 V8

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Originally Posted by redmodelt View Post
"Does it look like it is a factory type of connection into the timing cover" Yes it is inline with a rib cast in the cover. Not for a banjo fitting, small flare nut and maybe 1/4OD tube.
Just one of those days I guess! What can I say!! Doing too many things at once and go a little kook kook.

Think you can see the line from the timing cover to the base of the carb in these photos.
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File Type: jpg thFBD19HQD.jpg (44.9 KB, 51 views)
File Type: jpg 0c985cc8afd1ece40fdf0f57bc3cee7d.jpg (69.0 KB, 48 views)
File Type: jpg ford20.jpg (78.5 KB, 44 views)

Last edited by JSeery; 02-17-2019 at 08:25 PM.
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Old 02-17-2019, 08:16 PM   #14
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Default Re: line going to timing gear cover 46 V8

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Originally Posted by ford38v8 View Post
JSeery, All answers so far have confirmed vacuum brake line.
Does this mean you don't bother reading the opinions of others?
I read them, but didn't help in my state of confusion on this one, LOL
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Old 02-17-2019, 08:36 PM   #15
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Default Re: line going to timing gear cover 46 V8

See image for location.
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Old 02-17-2019, 08:50 PM   #16
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Default Re: line going to timing gear cover 46 V8

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Originally Posted by redmodelt View Post
See image for location.
Yep, I posted several photos above that shows the route of the line from that fitting to the base of the carb. If you are not running the original distributor it is fine to just cap it off.
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Old 02-17-2019, 09:47 PM   #17
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Default Re: line going to timing gear cover 46 V8

its ok jerry, i never screw up, but i understand some folks do once in a while. we seldom get a chance to catch you though !
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Old 02-18-2019, 12:09 AM   #18
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Default Re: line going to timing gear cover 46 V8

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its ok jerry, i never screw up, but i understand some folks do once in a while. we seldom get a chance to catch you though !
I thought I was wrong once, but I was mistaken!
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Old 02-18-2019, 12:21 PM   #19
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Default Re: line going to timing gear cover 46 V8

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I read them, but didn't help in my state of confusion on this one, LOL
It is okay . . . sometimes we jump to a "confusion conclusion" and once that cements itself into our reptilian brains, it takes a huge amount of work to dislodge it! (Some would claim a complete mental reboot is required). Ask my ex wife how I know such things! LOL
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