Sponge packed around top of oil filler tube ?

[C26Pinelake]

I recently purchased a Cabriolet and there is a yellow sponge on top of the oil tube spout under the cap. It looks manufactured and is about one inch in diameter. The motor runs very well and there does not seem to be fumes or smoke comming out of the tube when sitting in the driveway idling. Ideas please and is there something I should do ? Do I have a problem ? Thanks Wayne

[Mikeinnj]

Sounds like you might have some blow-by problems. To find out, remove the sponge and take a spin at highway speeds and then check signs of any oil blow-by,caused by worn pistons/rings. If so, you may see some oil on the outside of the tube and the surrounding area caused by pressure leaking from the combustion chamber, past the piston rings and pressurizing the crank case, causing oil vapor to escape from the breather tube. Also check the dipstick to be sure the oil pan is not over filled.

[Bill Lee/Virginia]

IMO, I think it is too restrictive. I would do away with the sponge. I had excess blow-by that resulted in a very dirty engine compartment and lots of elbow grease to keep it clean. I took a hint from previous posts and use an old white sock over the cap and breather tube. I change the sock about twice a year, more often if it gets saturated between oil changes.
Bill Lee/Virginia Peninsula

[glenn in camino]

You need a Fumaze or other breather tube to control that blowby and keep your engine cleaner..

[C26Pinelake]

Glenn Where do I buy a fumaze ?
Bill I have a white sock and that gets immediate installation !
Thanks guys !
Wayne

[bobpo]

Sponsored Links (Register now to hide all advertisements)

I use a Black Sock. Fits in better...

[48Ratfink]

Any extra points if it's a Snap-on sock??

[BrianBurkert]

Be sure anything you put in the breather pipe will still allow the engine to breathe. If you stuff the cap too tightly, the crankcase can pressurize and push extra oil out the rear main. I've seen it happen.

[C26Pinelake]

I have a black and white sock with a hole in it so that should satisfy everyone.
Thank you all and I have enjoyed and learned from the responses !
Wayne

[John Duden]

I have a oil cover with a hose (original accessary but not fumaze) if you are interested $25

[TinCup]

White socks are easy but the Fumaze is a tough find. Took me almost 2 years before I found one. Search the forums and you will find a post with pictures I did earlier.

Originally Posted by C26Pinelake

Glenn Where do I buy a fumaze ?
Bill I have a white sock and that gets immediate installation !
Thanks guys !
Wayne

[Chris Haynes]

Steel wool did the job on my '31 Sport Coupe back in the '60's.

[Neil Mylar LakewoodCA]

Does anyone know where there is an advertisement of the Fumaze? I looked in "Those Wonderful Unauthorized Accessories" but could not find it.

[1931 flamingo]

In the wanted section "JOOP" has a want ad with picture and I believe if you do a search here you may come up with a photo as the FUMAZE has also been discussed at great length before as well as "sock" additions to the oil filler tube.
Paul in CT

[TinCup]

Here is the unit I just restored.
Click Here for more pictures.

Originally Posted by Neil Mylar LakewoodCA

Does anyone know where there is an advertisement of the Fumaze? I looked in "Those Wonderful Unauthorized Accessories" but could not find it.

[C26Pinelake]

Please send your price to wayne at [email protected]

[MikeK]

Bill Lee's comment about too restrictive and resulting oil out the rear main is well founded. A hard to find period accessory Fumaze is not the only answer to a clean engine compartment though. All the "A" parts vendors sell a knock-off of another style with a flex metal hose that will do the trick too. You may not need one at all. Another fix if you have only normal blow-by is to stuff a copper pot scrubber in the tube to catch and condense fine mist. Less restrictive than that cellulose sponge. Make sure you use a Copper scrubber, not a SS one. If a particle or two of copper get in the engine, no harm. SS will score things.

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From the parts vendors:

[Clem Clement]

If you use a sock, use your wife's. Because when the sock is done, it is all soppy and goey to wear(:>)

[John Duden]

Originally Posted by MikeK

Bill Lee's comment about too restrictive and resulting oil out the rear main is well founded. A hard to find period accessory Fumaze is not the only answer to a clean engine compartment though. All the "A" parts vendors sell a knock-off of another style with a flex metal hose that will do the trick too. You may not need one at all. Another fix if you have only normal blow-by is to stuff a copper pot scrubber in the tube to catch and condense fine mist. Less restrictive than that cellulose sponge. Make sure you use a Copper scrubber, not a SS one. If a particle or two of copper get in the engine, no harm. SS will score things.

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From the parts vendors:

this is the one i have
john

[bogdonj]

This is what I use and works good!