Thought I'd help a friend change the oil on his 'new' '92 -- whoa it's different!

dave 911 · dave 911's Garage

So I have a friend that just bought at nice 92 Carrera and he asked if I could show him how to change the oil. Having never seen the car before, I said sure, I've done it a bunch of times on my car. I figured it's still an air cooled 911, how different can it be

?

Well to make a long story short, we didn't get the oil changed. I had no idea how different a 92 was from my old school 76. The bottom of the engine is shielded by a big plastic fairing, and the there is no drain plug plate at the bottom of the case, nor is the sump tank in the same place as on the older cars.

So, a few questions. Is the drain plug on the case the one that faces sideways on the driver's side of the case that you can see in the gap between the plastic fairings? And is the oil tank in front of the right rear wheel well vs. in back of it? I found what looked to be drain plug just inboard of the rear of the rocker panel.

My car really looks simple compared to his !!

rusnak · 05-13-2011, 06:12 PM

And I think there are two filters. The sound capsule thing has to come off.

dave 911 · dave 911's Garage

yeah, I was guessing the fairing would have to come off, but didn't want to get into it or help him w/o knowing exactly what I was doing.

obtw, I did a search and couldn't find anything that specifically called out the procedures for a 964....

Kidasters · Kidasters's Garage

Yeah - the 964 is significantly different.

You have to pull the fairing off. They added that in the 964 for aerodynamics. Some people leave it off, so that the engine can shed head better. Some people replace or add padding to it, so it will catch oil leaks.

There is a filter up around where the oil cooler is on your car - on the passenger side of the car, up around where the engine/transmission mate. That one isn't changed very frequently, and it a ***** to get at.

The other filter is in the same spot.

The dipstick is no longer in the tank, but is a mile long.

I think the tank is further forward. you'll see it when you get the big plastic piece off. It drains the same way.

Finally - I think you are right in what you've seen for the engine oil drain plug.

The 3.6 in the 964 is a little intimidating. Guess that's why my second Porsche is a 3.2.

Ken

Tyson Schmidt · 05-13-2011, 07:20 PM

Guys, you are confusing the 964 with the 993.

964 has only one oil filter in the engine compartment.

Btw, when you fill it, go very slowly. Once you get 6 quarts in, start the car and let it idle while you slowly add 3 more. Once it is warm, top it off.

Reason for this is the fill tube enters the bottom of the tank instead of the top so it takes time to equalize.

dave 911 · dave 911's Garage

So I just realized there is a 964 forum, I guess I posted this in the wrong forum

. I'll check over there....

rattlsnak · rattlsnak's Garage

the drain plug on the side of the case has been that way since 1984..., one filter on a 964 and the oil tank is in front of the right rear wheel, dipstick is in the same spot in the fill tube.

Joe Bob · Joe Bob's Garage

964 forum is slow....better answers here.

Bill Verburg · Bill Verburg's Garage

Quote:

Originally Posted by dave 911

So I have a friend that just bought at nice 92 Carrera and he asked if I could show him how to change the oil. Having never seen the car before, I said sure, I've done it a bunch of times on my car. I figured it's still an air cooled 911, how different can it be

?

Well to make a long story short, we didn't get the oil changed. I had no idea how different a 92 was from my old school 76. The bottom of the engine is shielded by a big plastic fairing, and the there is no drain plug plate at the bottom of the case, nor is the sump tank in the same place as on the older cars.

So, a few questions. Is the drain plug on the case the one that faces sideways on the driver's side of the case that you can see in the gap between the plastic fairings? And is the oil tank in front of the right rear wheel well vs. in back of it? I found what looked to be drain plug just inboard of the rear of the rocker panel.

My car really looks simple compared to his !!

dave 911 · dave 911's Garage

Perfect, thanks.

Looks like we were headed down the right path, but it's always good to get feedback from the gang here.

I'd never seen one of the later models up close until seeing his. It's amazing how the 911 design changed over the years, and how much more complex this car is than my 'middie'.

Traveller · Traveller's Garage

Dave, steer him to the P-Car Workshop page for countless DIYs.

surfdog4 · 05-15-2011, 02:35 PM

be ready with a drain pan with a BIG hole in it when you pull the drain plug on the oil tank. I had one with plenty of capacity, but with a standard little hole in the middle...man, i think 5 quarts comes out all at once! The oil ran over the sides of the pan, down the driveway, burning my hand as i tried to reposition yikes! Lesson learned, i got a new pan that is nothing but an open top....

And be sure to stuff lots of rags underneath the oil filter since it's horizontal...another mess!

964TargaC2 · 05-16-2011, 09:20 AM

Crankcase plug let out about 3 quarts so be ready for that as well

trak ratt · 06:29 AM

Quote:

Originally Posted by Bill Verburg

#2 is the key!!! Though I've not actually had to drain oil there. Forget that one and you can dump a lot of oil into the engine compartment when you remove the filter! Still much easier than 993s!

cjoenck · 06:42 AM

The plug in step 2 is kind of hard to reach. Instead, you can just punch a small hole into the oil filter. It allows air into the filter and has the same effect as opening the plug in step 2 above. Once you drained the oil, put a little duct tape over the hole before you unscrew the oil filter.

trak ratt · 05-17-2011, 06:33 AM

Quote:

Originally Posted by cjoenck

The plug in step 2 is kind of hard to reach. Instead, you can just punch a small hole into the oil filter. It allows air into the filter and has the same effect as opening the plug in step. Once you drained the oil, put a little duct tape over the hole before you unscrew the oil filter.

Done that too. Hitting the filter with a couple of shots of compressed air speeds the process some. I generally change oil and bleed my brakes at the same time, so left rear wheel is off anyway.

Type911 · 03-29-2012, 02:07 PM

Changed the oil in the 964 last night. Pretty simple. Filter is a bit of a puzzle to remove with the compressor in the way, compared with other non-A/C 911's

Planned on step 2, but could not find the drain plug in the oil filter console.
Where exactly is it ?

964TargaC2 · 03-29-2012, 02:46 PM

See Diagrams above for location of oil filter console drain plue, I dont mess with that, I punch/drill a hole in filter, let it drain, put a piece of duct tape over the hole and then remove filter

If that plug is stuck in you can cause some problems with removal, I figure to leave well enough alone