61 oil bath filter VW number

[fassed]

Does anybody have a list, of the proper oil bath filter for beetles?
Also are they dated? What are the numbers?

I have a 1961 S/N 3907***,the number is 113 129 613C on the filter.

[glutamodo]

That is a later air cleaner. I don't know for sure about part numbers. I think the 113129613 was the first 40HP air cleaner, back when they still had a road draft tube and no breather fitting going up to the air cleaner, as seen in this photo. On Beetles, this lasted up until April 1961, Chassis number 3806249 Engine 5703138.

Then they got rid of that "down pipe" and went with a breather just over to the air cleaner. At first apparantly they put it in the same place as the "C" air cleaner, but then moved it over to the intake side of the carb


I think the first one shown here is the short lived "A" filter, which was soon supplanted with a "B" filter:

Then in model year 1962, Chassis number 4519277, Engine Number 6502426 they came out with that "C" air cleaner:

So I think an A or B is what you need.

Those "B" air filters, by the way, may have a date stamp on them, on the preheat flap, as shown here:

Hope that helps.

-Andy

[lanceevox]

[glutamodo]

Do you mean the 25mm preheat hose? On stale-air engines such as that, it goes over to the left heat exchanger.

[fassed]

[lanceevox]

[glutamodo]

Essential? Depends. Carb icing can happen anywhere, depends on ambient temperature and humidity. The warmer and dryer it is, the better though. So it depends if you have any carb or manifold icing issues, if you have good heat riser on the manifold and in a favorable climate as you probably are, then the air cleaner preheat isn't as important.

Keep in mind, that when fresh air came out, they moved the preheat hose off of the heater box and to a fitting by cylinder number 4.

Although you do sometimes see fresh air heater boxes with a fitting on them for preheat, usually pinched or capped off.... but

... if need be, that fitting can also be used, that's how I have it set up on the 1600DP with a 1300 air cleaner that I have on my Baja. (I've also run the "C" 40HP air cleaner on it in the past) You have to cut a hole in the front-of-car piece of tin though. And on my Baja it's has to take a tight S-turn because I have the doghouse exhaust tin to jog around.

-Andy

[fassed]

[quote="fassed"]

[glutamodo]

[tasb]

Marin County is hardly a tropical climate. I would think that you would want all those fittings for those foggy moisture laden mornings. While I live in Southern California I also live at 7,000 feet altitude and I consider the pre heat hoses and thermostat essential and they do make a differnece in how well my engine performs.
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[zundapp]

Using an old thread to ask oil bath related questions instead of starting a new one.

In the Bentley in section K-2 page 16 and K-2A page 5 and there's an illustration of the air cleaner showing a gasket between filter element and the oil reservoir.

I quote "When assembling the cleaner, ensure that the gasket is in good condition and located correctly."

There's no mention of a part # for this gasket.

I tend to get a lot of oil on the carb and I assume it's coming from the air cleaner. Could it be because I don't have the gasket in place. I don't think I've ever seen one. I searched a couple parts suppliers and don't find it.

The two pictures in the Bentley show 2 different looking gaskets.
Anyone know about this gasket and where to get or how to make one?

[fassed]

[PSScoots]

I asked this back in 2007 and didn't get too much in the way of a reply:

http://www.thesamba.com/vw/forum/viewtopic.php?p=2232722&highlight=#2232722

None of the air cleaners I've ever looked in seem to have it. I'm not sure if it's to prevent air bye-pass of the filter or contain oil in the filter basin.
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Rebuilt to drive not decorate. -VOLKSWAGNUT
"Service the car and it will give you good service."

[Eric&Barb]

Would think for both reasons.
Could you post the diameters the gasket would fit into?? At worst probably could make something out of felt to do the job.
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[zundapp]

Guess I'll have to answer my own question

I found an air cleaner that had the seal in it.
It's grooved and looks like it is made to squish down accordion style. This would be the one found on K-2A page 5 in your Bentley.

It's 10mm tall with a 54.5mm dia. and 4.5mm thick.

I don't think an o ring with the right dimensions would be easy to find.
The seal keeps the oil from getting sucked up the sides of the velocity stack and into the carb.
At least I hope it does.

Came from a 10/61 date stamped air cleaner.
Interestingly, it has the date stamp on the underside of the snout on either side of the breather tube. The air flap is different than the one shown in an earlier post with a 12/61 stamp.

[glutamodo]

I've never seen that sort of date stamp either. What other markings are on that 10/61 cleaner? The 12/61 photo, that's my pic. I have two of those with that date - the original one from my 62 which is currently on the car- and an extra I picked up a while back. I just dug up the spare one again. It's a KNECHT LB 624/1 113129613B. And it's only got just an O-ring inside it - but I have no idea if it's the original or correct seal.

(all the other 40HP air cleaners I have around here are C series and those have the gasket in the top half - I've never seriously tried to remove one of those, as I've been afraid I'd ruin it getting it out)

Pics of my B cleaner:

-Andy

[zundapp]

It's Mann made, which would explain the differences in the two.

I'm in the middle of painting it so I'll get a photo soon.
I noticed that your Knecht filter uses the O ring and has a completely different shaped velocity stack. I am willing to bet that it is smaller diameter as well and looks a little shorter.

I know this is useless without pictures. I'll get some photos and measurements and update this.

[glutamodo]

I thought I'd posted a reply earlier but it's not showing up now..

Anyway, I thought I'd note that while the lower portion of the air cleaner appears to have a short velocity stack, it is continued in the upper portion of the cleaner and exits near the top, not unlike other VW oil baths I've seen.

As for the diameter, you're probably right, it is a little small. I compared my "B" cleaner to a "C" and found the IDs to be 35mm on the B unit and 44.5mm on the "C unit. I kind of have to wonder as to what effect that might have on performance.

-Andy

[zozo]

My 10/61 cleaner is also stamped on the bottom of the snout.

[PSScoots]

By the way, the April 1960 spare parts catalog gives this gasket:

as

111 129 625 B Gasket (rubber, round section) - Air cleaner (oil bath)

or

111 129 625 C Gasket -- Oil bath air cleaner 111 129 611E / 113 129 611A

This was for the "snorkel-less" air cleaners. Whether the gasket number was extended with additional letters, or given a new final digit designation, I don't know.
_________________
Rebuilt to drive not decorate. -VOLKSWAGNUT
"Service the car and it will give you good service."