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12-18-2014, 11:36 AM | #1 |
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Location: Fresno, California
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Oil filler tube
Does the metal flex line running off the oil filler tube need some kind of screening at the bottom to prevent dirt, sand, road debris from getting sucked back into the engine? I see signs of sand/dirt particles on the inside wall of the filler tube. Also, is the flex suppose to be supported where it doesn't hang down past the undercarriage and directed away from the road? Thank you
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12-18-2014, 12:18 PM | #2 |
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Re: Oil filler tube
this is an aftermarket item, popular at one time. no screen is needed because the outlet of the tube is far from the engine, and there would be a slight amount of pressure there, not a vacuum pulling dirt in. those i've seen were not supported.
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12-18-2014, 12:34 PM | #3 |
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Re: Oil filler tube
The ones I noticed run toward the back of the engine compartment toward the rear motor mount. This would keep them up a bit from the dust that may be kicked up.
If fact I had one but the "lid" on top of the filter would "pop" up and down when the engine was running. Anybody know why this would happen? Do I have a leaking valve? Sorry, maybe I should have started a new post.
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12-18-2014, 12:40 PM | #4 |
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Re: Oil filler tube
I have one and run the tube through the hole in the motor mount.
Fred, the one the lid is flapping is caused by blow by (weak valve maybe) and a weak lid spring. |
12-18-2014, 12:58 PM | #5 |
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Re: Oil filler tube
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12-18-2014, 01:30 PM | #6 |
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Re: Oil filler tube
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Fred Kroon 1929 Std Coupe 1929 Huckster |
12-18-2014, 02:13 PM | #7 |
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Re: Oil filler tube
I have also run the flexible tube through the holes in the rear motor mount and slightly through the bottom hole in the rear mount . Air passing by the tube as the car is driven helps create a suction that draws fumes out of the crankcase. The devise helps reduces crankcase pressure that contributes to oil leaks . I run a Fumaze crankcase breather on my roadster that is similar to the road tube used on the old chevy stove bolt sixes.
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12-18-2014, 02:40 PM | #8 |
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Re: Oil filler tube
some of the original ads show the pipe stuck down in the rear mtr. mount,I think it was J C Whitney.
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12-18-2014, 03:41 PM | #9 |
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Re: Oil filler tube
Same here:
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12-18-2014, 04:04 PM | #10 |
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Re: Oil filler tube
Nice Fumaze, Carl !!! Here is the one on my roadster .
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12-18-2014, 04:19 PM | #11 | |
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Re: Oil filler tube
Quote:
Are you sure the breather tube isn't plugged? |
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12-18-2014, 04:35 PM | #12 |
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Re: Oil filler tube
I have a very similar setup with the flexible tube on mine. Mine has a support bracket on the tube though.
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12-18-2014, 04:41 PM | #13 |
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Re: Oil filler tube
Am not sure if the breather tube is plugged. Again another thing I need to check.
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Fred Kroon 1929 Std Coupe 1929 Huckster |
12-18-2014, 05:35 PM | #14 |
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Re: Oil filler tube
From Purdy's picture, is it a correct assumption that a Fumaze works with engine pans?
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12-18-2014, 05:39 PM | #15 |
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Re: Oil filler tube
Actually works better with engine pans.
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12-18-2014, 05:49 PM | #16 |
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Re: Oil filler tube
Thanks Carl, I think I will start hunting one.
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12-18-2014, 05:57 PM | #17 |
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Re: Oil filler tube
I forgot to mention, mine came with a clamp to fix the flex tube to the steering column and route it down by the engine mount.
Last edited by Y-Blockhead; 12-18-2014 at 06:47 PM. |
12-18-2014, 06:24 PM | #18 |
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Re: Oil filler tube
Purdy calls it. I have my draft tube (remember them) clamped on the engine pan at an angle to create suction while driving. Well I'm creating something I hope.
Somebody at one time drilled holes in the cap I guess because they didn't understand it's function.
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12-18-2014, 09:41 PM | #19 |
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Re: Oil filler tube
Jenny, yes the Fumaze was designed to work with engine pans. The Fumaze hasn't been reproduced in many years but sometimes they show up on eBay . It is an old accessory that is listed in those wonderful unathorized accessories for the model A Ford book .
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12-19-2014, 03:09 PM | #20 |
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Re: Oil filler tube
Both styles act as a road draft, an early type of CV system to vent the crankcase of unburned hydrocarbons, steam and acids, all by products of combustion. You want the open end of the tube under the car so the airflow across the open end of the tube creates a low pressure that pulls gases out of the crankcase.
Later systems (PCV) routed these gases back into the intake manifold to burn. |
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