So, I just found out my room mate has been neglecting his loyale and that he lost his oil cap. Will this cause any damage? I figure it would after a little while, but don't have any factual evidence.

 

Anyone?

I lost one on a DL a long time ago. I just clogged it with paper towel for a while til I got a new oil cap. Seemed fine. Your gonna get weird vaccum though.

It shouldn't cause any permanent damage to the engine itself. It may affect running or cause it to lose oil, but it won't really hurt anything.

Worst thing that i can see happening is something falling in the tube. Other than that it shouldn't be too bad. I drove without one for a little while until i got a new one as well.

Alright, good to know. Thanks guys!

Closest I could get with a search...........

 

Is the oil filler cap on an EA81 supposed to be tight or should it have some play in it???? Thanks, Tim

Tight, there is a gasket under the cap. The tabs on the cap like to bend too, so check those.

I've wrestled with this problem as well - my GF couldn't get the cap off if I bent the tabs enough to get it tight on there. Finally I found the reason was the seal - they get old and hard. I got a new seal, and the supple rubber makes it an easy on-off for her now.

 

GD

Reviving an old thread:

When I popped the hood this evening with the car on, I noted that my oil filler cap was rattling. It was on proper, but the gasket has shrunk over the years. Did a quick search and stumbled upon this thread. Any generic alternatives? The SOA p/n is 803935010. Need to get one.

Reviving an old thread:

When I popped the hood this evening with the car on, I noted that my oil filler cap was rattling. It was on proper, but the gasket has shrunk over the years. Did a quick search and stumbled upon this thread. Any generic alternatives? The SOA p/n is 803935010. Need to get one.

 

Take the cap into a parts store and if they don't find a gasket right away, have them rummage through similar bits. Some manufacturer somewhere, some-when is bound to have made one that will work. I have done this with bulbs and belts with good success, and as long as it's not something designed to fit a specific thing (like a weird shaped manifold or a head) there should be a round piece of rubber that will work for you

 

Or do what I did, and just drive with it until you go to the junkyard next and then hunt for one with a good cap

This is interesting...

 

On my ea81 hatch i was playing around the other day as ive got an issue with very low idle on tickover that comes and goes when the engines hot..

 

I just happened to remove the oil filler cap and the revs picked up and it idles perfectly...replace it and it goes back to stuttery ......odd

 

bearing in mind its a uk car so i dont have anywhere near as much of the emissions pipework you guys have,i think its got one if not two tiny little valve things on the breather pipes,possible one of those is blocked?