Oil Sling Arm?

Javyd · Posted: Sat Nov 19, 2011 1:42 pm Post subject: Oil Sling Arm?

So I took my bus to a Mech and he told me that my engine was missing an oil sling arm. What the heck is an Oil sling arm, where does it go and how can I find one?

I googled and searched in the forum threads and couldn't find anything!

It is making a fine spray of oil on the back of my bus.

SGKent · Posted: Sat Nov 19, 2011 1:48 pm Post subject:

he is pulling your leg. Maybe he was thinking you needed a huge wiper arm on the back to sling the oil off. Take some photos of your engine and under the engine from behind and post them here. Then we can see what is going on. Make sure the engine photos are lit and that it isn't all dark in there.
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Wildthings · Samba Member Joined: March 13, 2005 Posts: 50353

What engine do you have and how badly is it leaking oil? Need to cleaner her up well and find out where the oil is coming from.

Desertbusman · Posted: Sat Nov 19, 2011 3:00 pm Post subject:

What kind of bus and what kind of engine? And what kind of mechanic?
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RatCamper · Posted: Sat Nov 19, 2011 3:38 pm Post subject:

Lawnmower mechanic Laughing

It's been a looooong time but I seem to recall that the B&S horizontal shaft engines had an oil slinger for lubrication on the conrod.
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Javyd · Posted: Mon Nov 21, 2011 6:24 am Post subject:

I think the engine came out of a bug the bus is a 73. I'll ask him again. He has a bus and works on VW's well see what he says when i call him today and I'll get back to you guys.

Glenn · Posted: Mon Nov 21, 2011 6:29 am Post subject:

Could he mean the oil slinger on the nose of the crankshaft?

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mikewire · Posted: Mon Nov 21, 2011 11:08 am Post subject:

Oil slinger is usually found in low oil pressure motors. The oil slings off the ring to lubricate the timing chain, fuel pump (if it's mechanical) and main bearings and/or seals.

I'd look for a different mechanic, like yesterday. Obviously the VWAC flat four is not something this guy has torn into, or has basic knowledge of the internals.

Sounds like you need a hub seal, or possibly oil cooler seals - both are common to fail and somewhat easy to replace. Find a local indie VW or euro shop and see if they can do the repair.
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RatCamper · Posted: Mon Nov 21, 2011 1:40 pm Post subject:

agreed, but an oil slinger arm is a very specific thing. Arm being the operative term. It was either a "VW's are lawnmowers hurr" joke or this mech actually believed it. Or if he's anything like me the wrong words came out and made him look silly.
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Vehicle: 1975 Special order delivery walkthrough panel based pop-top camper (LCA / Sunliner). Motor: Nippon 1.8L Single port Wasserboxer, Transmission: 3 rib 002.

SGKent · Posted: Mon Nov 21, 2011 2:08 pm Post subject:

maybe he meant oil slingar mmm. As in a type 1 motor oil slinger. Type 4 motors don't have an oil slinger. Type 1 do. It is a cupped washer that keeps oil from coming out the crankshaft end.
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RatCamper · Posted: Mon Nov 21, 2011 2:09 pm Post subject:

Desertbusman · Posted: Mon Nov 21, 2011 2:46 pm Post subject:

Kind of interssting but Tom Wilson forgot to mention the oil slinger on T-1's. I think he did it on purpose. To let people know that when they tear their engine apart again they need to learn how important it is to pay attention to every aspect of engine building.
Oil slingers were used on some old engines and also small engine that don't have oil pumps.
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Wildthings · Samba Member Joined: March 13, 2005 Posts: 50353

I would think that the mechanic meant the oil slinger as well, assuming he is talking about a T1 engine and not a Type 4. Of course he may not know the difference between the two. Assuming the problem is oil leaking out from around the crankshaft on a Type 1 then the problem is probably not the slinger, but oil foaming, high oil level, or something wrong with the crankcase ventilation, as slingers don't wear or disappear suddenly.

Without more info, at least knowing what kind of engine and some general idea of its condition we can only make very wild guesses as to what is wrong.

SGKent · Posted: Mon Nov 21, 2011 5:00 pm Post subject:

telford dorr · Posted: Mon Nov 21, 2011 5:05 pm Post subject:

Would seem to me that if the oil slinger washer were missing, the pulley would go on to the crank too far, and bind against the outside of the case?
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Javyd · Posted: Mon Nov 21, 2011 5:19 pm Post subject:

He didn't ask for any money cause he didn't fix it but he gave me a free tune up. He might have said oil slinger. I'll have to give him a call. I think it is a low pressure engine cause it came out of a bug. I wasn't able to get a hold of him today so i'll try again later.

Also the tins for my engine don't fit correctly so that's another thing I have to take care of. Sorry for not bringing pics yet but they will come.

busdaddy · Posted: Mon Nov 21, 2011 5:31 pm Post subject:

Wildthings · Samba Member Joined: March 13, 2005 Posts: 50353

louis-123 · Posted: Mon Nov 21, 2011 6:55 pm Post subject:

before i rebuilt my 1600, it would spray tiny dots of oil on the back of the bus and inside the engine bay. seemed on and off.
case was disorted, causing low pressure when engine was hot, but i dont know how this would cause oil spraying outside the case...
but i drove that engine thousands of miles like that.

Desertbusman · Posted: Mon Nov 21, 2011 9:40 pm Post subject:

Low oil pressure has nothing to do with it except for usually being associated with a worn out engine with lots of blow by.

Mine had a silly little leak problem behind the pulley. Not all pulleys have the same depth of spiral groove so I changed pulleys again and the minor leak continued. So I put in a sand seal. But while doing the seal mod I ran it without the crank pulley and found an impossible to see leak in a weld in my custom pump cover. It was spraying onto the back side of the pulley. Embarassed

The very first thought was the chance of forgetting the slinger.
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