engine and drivetrain Gasket For Oil Cap

[Henryn02]

http://www.ebay.de/itm/BMW-E9-E12-E21-E24-E28-2002tii-BMW-2002-turbo-S38-dichttungsatz-/141101655211?pt=DE_Autoteile&hash=item20da5064ab

Link to German eBay seller with gasket for oil cap. Has other unusual repro gaskets for 02's.

Henry

[HBChris]

Gaskets are available over here too.

[ingramlee]

Newbie question... Is the gasket for the oil cap necessary? I dont believe I have one and I dont think I have ever leaked oil from there.

 

Thanks

[John_in_VA]

Is the gasket for the oil cap necessary? I dont believe I have one and I dont think I have ever leaked oil from there.

Usually, yes.  I'd advise having one.  If it then leaks, remove it.

[FB73tii]

Newbie question... Is the gasket for the oil cap necessary?

 

Yes. Without the gasket there is not enough pressure against the cap to hold it tight and it will fall right off. Unless you have some kind of aftermarket cap, but I imagine it would have a gasket, too.

 

Usually, yes.  I'd advise having one.  If it then leaks, remove it.

 

Um, John--removing the oil cap results in a big mess    ....ask me how I know

 

Now, when the gaskets get old they start to leak. I have tried bending down the spring-loaded tabs in the metal cap to apply more pressure, but that doesn't always work and sometime messes up the cap. I have seen folks put two gaskets in to make it seal, as well.

 

--Fred

[ingramlee]

Yes. Without the gasket there is not enough pressure against the cap to hold it tight and it will fall right off. Unless you have some kind of aftermarket cap, but I imagine it would have a gasket, too.

 

 

Um, John--removing the oil cap results in a big mess    ....ask me how I know

 

Now, when the gaskets get old they start to leak. I have tried bending down the spring-loaded tabs in the metal cap to apply more pressure, but that doesn't always work and sometime messes up the cap. I have seen folks put two gaskets in to make it seal, as well.

 

--Fred

Fred,

 

Im sure you are correct. I have not noticed the gasket before. I will check though.

 

Walter,

[Mike Self]

Quick 'n dirty help for worn oil (and gas) cap gaskets:  take the polyethelene lid from a deli container, butter tub etc and cut a gasket from it, then install under the existing rubber gasket.  It'll seal better, and in the case of the gas cap, make it much easier to remove...

 

cheers

mike

[mataku527]

Any sources for a new gasket? 

[Simeon]

If they are NLA then I would be cutting one from a rubber sheet. I think the whole caps are available, you could get one and swap the seal if you are attached to your old cap. 

[oh2ryan]

I grabbed the cheapest oil cap from Blunt a while back and just pulled the new gasket off the plastic cap that came in the mail when mine was leaking a bit. I swapped it into my original cap and haven't had an issue yet. It was like $3. 

[mataku527]

Thanks for the tip. Found a cap but shipping is 15 dollars! Guess I'll have to wait until I need a bigger order. 

['76mintgrün'02]

In the oil catch-can thread you said your seal was still soft. 

 

That being the case, you could try bending the tabs a little bit. 

Or cut out a shim washer to put on top of the rubber seal.

[mataku527]

Haha. You caught me. I was checking it today and it's not as soft as it seems it should be. I'm trying to rule out all possible causes and this seemed like a cheap fix. I'll probably try making a gasket from a yogurt lid and go from there. 

['76mintgrün'02]

is there a NAPA near you?

https://www.napaonline.com/en/p/BK_7031373 

[Mike Self]

On 10/30/2013 at 12:10 PM, FB73tii said:

I have seen folks put two gaskets in to make it seal, as well.

I had this problem with my gas cap--it was very hard to turn, so I made a second gasket from the lid of a deli food container (most any polyethylene lid will work).  Much slicker than the rubber gasket, and in the case of the oil cap, will put additional tension on those old spring clips to hold it on tighter.  

 

mike