Oil Bath Mess

Kaput · Posted: Wed Nov 12, 2014 11:01 pm Post subject: Oil Bath Mess

I have a 1600 sp engine with an oil bath

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There is a pipe that goes by the oil filler that just drips on the tin. Where is this supposed to lead? The PO said it could be plugged up (don't really trust he knew what he was talking about) but it seems like it may supposed to be going through the tin to the ground?? Also there seems to be a hose or 2 missing on the main part of the oil bath. Can anyone shed some light?

I would like to be able to park the bus in my driveway without making a mess.

WestyPop · Posted: Wed Nov 12, 2014 11:42 pm Post subject:

Unless someone has really put way too much oil into the air cleaner, IMO the 'oil mess' is more likely due to engine blowby/crankcase fumes than to any problem with the OG oilbath air cleaner.

And yes, the warm air hose is missing from the the air cleaner assembly's lower intake.
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Wildthings · Samba Member Joined: March 13, 2005 Posts: 50352

The pipe is your draft tube. It is an alternate route for blowby to get out of your engine. Yes they dump oil under the car, fifty years ago all cars had draft tubes and the roads were an oily mess. People often do make changes to their crankcase ventilation at least partially to get rid of the oil drips. Some systems work well, while others can make your engine even nastier.

The draft tube would have originally had a rubber pinch valve on its lower end.

aeromech · Posted: Thu Nov 13, 2014 8:04 am Post subject:

Thank you Busdaddy for the pics
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67jason · Posted: Thu Nov 13, 2014 8:25 am Post subject:

http://www.wolfsburgwest.com/cart/DetailsList.cfm?ID=311115541

source for the oil breather rubber valve that goes on the end of the down draft tube.
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busdaddy · Posted: Thu Nov 13, 2014 8:36 am Post subject:

It looks as if that draft tube has been shortened, unless you can find a replacement you'll want to add a short piece of tube (clamped on with a rubber hose sleeve perhaps?) so it extends down through the tin. When you get the rubber end boot from WW or whoever check that the end is actually slit open, some are not and don't allow condensation to drain like they should.

BTW the smog hoses on the aircleaner in my pics there are reversed, the oil breather goes on the snout and the canister purge line (if you have one) goes on the filter body.
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Kaput · Posted: Thu Nov 13, 2014 12:47 pm Post subject:

Thanks Everyone for the info!

Should that air intake hose just go through the tin to take air in or does it need to connect to anything?

Looks like i just need to drill a couple holes in the tin, get some hoses and the boot And I should be fine. Please correct me if I am wrong.

richparker · Posted: Thu Nov 13, 2014 2:01 pm Post subject:

Wildthings · Samba Member Joined: March 13, 2005 Posts: 50352

You might just look for a rear tin with all the holes you need already cut into it. They are pretty plentiful as every engine came with one. You do need to find the right one for your year though as there were several variants over the years.

bigbore · Posted: Thu Nov 13, 2014 4:37 pm Post subject:

It looks like your road draft tube is cut off thats bad you need to fix that. Also having your fuel filter sitting on the carb heat pipe is a sure way to burn the bus to the ground.
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Wildthings · Samba Member Joined: March 13, 2005 Posts: 50352

It also looks to be a DP engine.

Kaput · Posted: Thu Nov 13, 2014 9:09 pm Post subject:

Excellent advice, keep it coming! Good eye Wildthings, it is a dual port.
I will definitely move that filter and attach something to extend the road draft tube. Is that a hazard? I suppose the oil on the tin is a fire hazard too.

Is the oil bath intake a hazard as well?

richparker · Posted: Thu Nov 13, 2014 9:17 pm Post subject:

mikedjames · Posted: Fri Nov 14, 2014 11:46 am Post subject:

You could of course just change the oil filler assembly on the end of the alternator / dynamo stand for a more modern alternator oil fillerne that only has the hose going to the oil bath and nothing dropping oil below.

These are common on upright engines here in Europe. My 1973 bay has no pipe hanging down.
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