Notices
997 GT2/GT3 Forum 2005-2012
Sponsored by:
Sponsored by: Porsche North Houston

997.1 GT3 Oil Change

Thread Tools
 
Search this Thread
 
Old 10-31-2011, 11:42 PM
  #1  
T_Porsche
Rennlist Member
Thread Starter
 
T_Porsche's Avatar
 
Join Date: Dec 2010
Location: MI
Posts: 14
Likes: 0
Received 3 Likes on 1 Post
Default 997.1 GT3 Oil Change

Hello Rennlisters!

I completed a 997.1 GT3 oil change over the weekend and I thought I would share a DIY that I put together. I know there are some others out there but I wanted to have a DIY that I could print out and bring with me in the garage.

I did a couple things different than what the service manual said that includes:
1.) Continue to drain the oil after taking out oil filter.
2.) Putting in 1 qt of oil into oil filter housing to prevent dry start up.
3.) Using channel locks to take off housing, which was a big mistake. Go out and buy the 75mm 14 flute oil filter wrench and learn from my mistake.
4.) Bumping the engine over a couple times to circulate the oil. I'm sure there is a better option, like pulling a fuse or relay, but I don't know which to pull.

This is my first DIY and I wanted to contribute back from all the information and knowledge from you guys. So thank you!
Cheers,
Attached Images
File Type: pdf
997.1 GT3 Oil Change pg 1.pdf (96.9 KB, 3307 views)
File Type: pdf
997.1 GT3 Oil Change pg 2.pdf (136.2 KB, 2611 views)
File Type: pdf
997.1 GT3 Oil Change pg 3.pdf (131.3 KB, 2608 views)
The following 3 users liked this post by T_Porsche:
Bruce88 (01-16-2024), nstymatt (05-23-2020), wchai (02-28-2024)
Old 11-01-2011, 12:23 AM
  #2  
911SLOW
Admin
Lifetime Rennlist
Member
 
911SLOW's Avatar
 
Join Date: Dec 2001
Location: Athens
Posts: 11,010
Likes: 0
Received 122 Likes on 95 Posts
Default

Well done!
Old 11-01-2011, 09:09 AM
  #3  
sws1
Pro
 
sws1's Avatar
 
Join Date: Aug 2006
Location: NJ Shore
Posts: 705
Likes: 0
Received 2 Likes on 2 Posts
Default

Not sure how bumping the throttle moves oil through the engine without the engine being on.
a) It's fly by wire. With car off, the gas pedal does nothing.
b) Even if it wasn't fly by wire, moving the throttle on an unstarted engine does nothing to the oil.

Otherwise, nice.
The following users liked this post:
SupraSaiyan (05-24-2022)
Old 11-01-2011, 06:56 PM
  #4  
T_Porsche
Rennlist Member
Thread Starter
 
T_Porsche's Avatar
 
Join Date: Dec 2010
Location: MI
Posts: 14
Likes: 0
Received 3 Likes on 1 Post
Default

Originally Posted by sws1
Not sure how bumping the throttle moves oil through the engine without the engine being on.
a) It's fly by wire. With car off, the gas pedal does nothing.
b) Even if it wasn't fly by wire, moving the throttle on an unstarted engine does nothing to the oil.

Otherwise, nice.
Sws1,
Thanks. Hopefully this will help out somebody in the future.
I was referring to "bumping" as turning the engine over for 1/2 sec then turning it off with the key.
No throttle input is necessary...maybe bumping is too close of a word as blipping but I completely agree with your statements about the throttle / fly by wire.

I wanted to crank the engine to circulate the oil BUT not start the engine.
It might be overkill to prevent dry start up, but can't see it hurting.
Do you know the best way to do this?
Old 11-01-2011, 09:02 PM
  #5  
docholidaay
7th Gear
 
docholidaay's Avatar
 
Join Date: Oct 2010
Location: Md
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Default

great detail - that was timely for me as I'm about to do my first change. thanks
Old 11-01-2011, 11:43 PM
  #6  
louwill
Advanced
 
louwill's Avatar
 
Join Date: Mar 2010
Location: Louisville, KY
Posts: 73
Likes: 0
Received 0 Likes on 0 Posts
Default

Excellent. Thank you.
Old 11-02-2011, 01:36 AM
  #7  
kyrocks
Rennlist Member
 
kyrocks's Avatar
 
Join Date: Oct 2010
Location: Limassol, Cyprus and DFW, Texas
Posts: 4,637
Received 389 Likes on 204 Posts
Default

Awesome. I have to look it up every time - this way I just print it and put in the garage.

I changed the oil in the C4S today, but the GT3 is always a little different. Thank you.
Old 12-11-2011, 12:34 AM
  #8  
drdrank
Racer
 
drdrank's Avatar
 
Join Date: Nov 2010
Location: USA
Posts: 429
Received 0 Likes on 0 Posts
Default

Thanks for the PDFs!
Old 12-11-2011, 11:22 AM
  #9  
Macster
Race Director
 
Macster's Avatar
 
Join Date: Sep 2006
Location: Centerton, AR
Posts: 19,034
Likes: 0
Received 246 Likes on 217 Posts
Default

Originally Posted by T_Porsche
Sws1,
Thanks. Hopefully this will help out somebody in the future.
I was referring to "bumping" as turning the engine over for 1/2 sec then turning it off with the key.
No throttle input is necessary...maybe bumping is too close of a word as blipping but I completely agree with your statements about the throttle / fly by wire.

I wanted to crank the engine to circulate the oil BUT not start the engine.
It might be overkill to prevent dry start up, but can't see it hurting.
Do you know the best way to do this?
Remove the fuel pump fuse. I do not know which one is the right fuse in your car but the owners manual should give a diagram of the fuse assignments.

Sincerely,

Macster.
Old 12-11-2011, 03:14 PM
  #10  
911dev
Drifting
 
911dev's Avatar
 
Join Date: Jul 2009
Location: Atlanta
Posts: 2,650
Received 8 Likes on 7 Posts
Default

Great tips, thanks.

I usually let mine drain for at least 2 hrs. Once I let it drain over-night; probably a 1/8th -1/4 qt. came out! Amazing how much oil accumulates a drop at a time. I'm sure you do this, but while draining the oil with the filter removed also be sure to open the fill cap. This does help vent the case allowing more oil to drain or at least drain more quickly. A turkey baster works great for sucking up that old filter oil. My wife was a little upset when she yelled for the baster and it was in the garage. Oops!

I always "bump" the ignition several times (8-10) before holding it log enough the fire the beast up. It does lessen the dry start some. I also allow time between each couple "bumps" so not to abuse the starter, etc. That may be overkill but also can't hurt.

9.5 qts. exactly each time with a prolonged drain, as above, on my .2 GT3.

Imagine how much oil is left in there when the service tech rushes through it.

I have added some oil to the filter cavity, but have to ask will that take a qt.?

Thanks again, great tech stuff.
Old 12-11-2011, 04:32 PM
  #11  
JohnAnthony
Intermediate
 
JohnAnthony's Avatar
 
Join Date: Mar 2011
Posts: 49
Likes: 0
Received 8 Likes on 2 Posts
Default

shouldn't the first thing be to remove the oil filter and unscrewing the fill cap?

it turns 3 steps into 2....


1. release fill cap
2. remove oil filter
3. open drain plugs (drain)
4. close drain plugs
5. fill oil filter housing w/ first Liter/Quart of oil (add filter and close)
6. add remaining oil

...also if you have a 9 Liter service fill and you get ~9 liters out - i don't think it's worth it to let it drain any more, doesn't the engine have an 11 Liter dry fill?
Old 12-11-2011, 04:42 PM
  #12  
911dev
Drifting
 
911dev's Avatar
 
Join Date: Jul 2009
Location: Atlanta
Posts: 2,650
Received 8 Likes on 7 Posts
Default

Originally Posted by JohnAnthony
shouldn't the first thing be to remove the oil filter and unscrewing the fill cap?

it turns 3 steps into 2....


1. release fill cap
2. remove oil filter
3. open drain plugs (drain)
4. close drain plugs
5. fill oil filter housing w/ first Liter/Quart of oil (add filter and close)
6. add remaining oil

...also if you have a 9 Liter service fill and you get ~9 liters out - i don't think it's worth it to let it drain any more, doesn't the engine have an 11 Liter dry fill?
Of course it be worth it to let more dirty oil drain regardless of how much it holds dry. Can't agree with above.
Old 12-11-2011, 05:10 PM
  #13  
cfjan
Rennlist Member
 
cfjan's Avatar
 
Join Date: Mar 2007
Location: Sunnyvale, CA
Posts: 2,808
Likes: 0
Received 33 Likes on 9 Posts
Default

I never filled the oil filter housing.. I think I will do that going forward..

Hopefully I haven't done much damage to the engine... (never seen that done at the shop either..) But understand that we want to do the best we could.. !
Old 12-11-2011, 06:57 PM
  #14  
911dev
Drifting
 
911dev's Avatar
 
Join Date: Jul 2009
Location: Atlanta
Posts: 2,650
Received 8 Likes on 7 Posts
Default

Originally Posted by cfjan
I never filled the oil filter housing.. I think I will do that going forward..

Hopefully I haven't done much damage to the engine... (never seen that done at the shop either..) But understand that we want to do the best we could.. !
you haven't damaged the engine not doing this. if given the choice I'd go this route but not doing it won't hurt anything.
Old 12-12-2011, 01:55 PM
  #15  
T_Porsche
Rennlist Member
Thread Starter
 
T_Porsche's Avatar
 
Join Date: Dec 2010
Location: MI
Posts: 14
Likes: 0
Received 3 Likes on 1 Post
Default

Originally Posted by Macster
Remove the fuel pump fuse. I do not know which one is the right fuse in your car but the owners manual should give a diagram of the fuse assignments.

Sincerely,

Macster.
Thanks for the info Macster. I'll try to find it and test it out. I know that there might be some residual fuel in the lines but I could run it dry before I start the oil change.

I know its overkill, but it can't hurt.


Quick Reply: 997.1 GT3 Oil Change



All times are GMT -3. The time now is 04:30 PM.