glenncof

1985 911 valve adjust

I assumed you would just drain the engine and NOT the oil resevoir tank

But I read somewhere BOTH must be drained.

Is draining the resevoir required ? (The rear tires will be raised 6-8" for access.)

livi

Some people raise one side of the car at the time. Letting the oil flow over to the other side without empying the tank. Personally, I think its a good time for an oil change too. With the car level and the tank full you will have a mess.

glenncof

LOL...I just changed my oil for a Castrol 20W50 conversion to Valvoline Maxlife 20W50. Some people have gotten big MPG boost switching to Valvoline. It took me a while to get it at the right price!

livi, based on what you're saying it is only the oil in the engine.

imcarthur

Sure you can do a partial oil dump into a BIG clean container. I've done the one-side method & I see no reason you couldn't do it level. Make sure to cover the top of your heat exchangers on the passenger side with tin foil because it will drip. And then don't forget to take the foil off afterward . . .

Ian

Peter Zimmermann

...if you leave the foil make sure that it's got a nice pork tenderloin wrapped in it!
Pete

imcarthur

Great idea Pete. And you could rig up a thermometer to tell you when it's down. Hook it up to the useless Upshift Light.

Ian

wholberg

If I don't change the oil at the same time, I jack one side of the car up and wait 1 hour before taking the lower valve cover off, and just spill an ounce or so of oil. After adjusting one side, I repeat for the other side. One advantage to draining the oil is that you can pull both sets of covers off and adjust all at once.

mojorizing

Wholberg,
Between strangers this might sound weird, but what the hey....your avatar has a nice behind! Is that a Targa ? Got pics?

later, Kevin

wholberg

Here are a few pics, including the avatar at full size. The car is a 87 turbolook. I drive it every day and love it.

glenncof

I like a good rear end as well as anybody but...

I'm still unclear on this. Does the resevoir drain into the engine at all ?

I can't believe it would but I'll check resevoir level when cold.

Thanks

Brett San Diego

Glenncof: Mine did slowly. 1978 911SC. I accidentally filled the tank before doing my valve adjustment. Oops. I thought I was in for a real mess, but it sat for a couple of days (all valve covers off) as I did the adjustment, and it probably dropped 0.1-0.2 L or so on the floor over that period. Not that much, so it wasn't that bad at all.

Brett

glenncof

Bret,

Thanks. I looked at the Haynes manual for the oil circuit diagram and see that the oil path would need to leak through the oil pump.

My car has never sat for more than about a week so I have no chance to observe the drain down of the resevior over long periods of time (like the winter).

This leak down would imply all the oil could end up in the engine over extended period of non-operation. I am wondering if this is a problem when bring vehicle out of extended storage (which I may do at some point). Not a problem now.

THANKS