Oil Filler Tube Leak
03-11-2016, 09:31 PM
#1
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Oil Filler Tube Leak
After cleaning my ISV which was completely clogged I had a sudden oil leak in my 993 C2. It's localized (looking in to the engine bay) to the near right hand side around the oil filler tube area - it looks like the base from the pic I took. It produced a fair amount of smoke and smell until I had to stop and tow the car. Is there a connection. It's dark right now but is there a connection I should be looking for? Help!!! And could the increase in pressure from a cleaner ISV cause this leak?
03-11-2016, 11:04 PM
#3
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If you go to this link, scroll down one page, select your model/year, and drill down to main group 1, sub group 04, illustration 104-01, you can see the oil filler and related parts. As Linnm pointed out above, a leak in this area is often due to overfilling--the oil level is up to one of the joints in the filler that may not be sealing well, and just runs out.
You may also want to check the accordion extension in the filler tube. These are often cracked, and let oil run out when it is being added.
http://www.porsche.com/usa/accessori...artscatalogue/
You may also want to check the accordion extension in the filler tube. These are often cracked, and let oil run out when it is being added.
http://www.porsche.com/usa/accessori...artscatalogue/
06-14-2018, 11:54 AM
#4
Instructor
My extension is cracked per the dealer mechanic about 18 months ago. Lately I see a few oil drips in the garage right below that area, so I assume that's what it is.
Is it hard to replace? I can do basic mechanical stuff no problem until the space gets too tight or special tools (or tiny hands) are needed.
Thanks
BT
Is it hard to replace? I can do basic mechanical stuff no problem until the space gets too tight or special tools (or tiny hands) are needed.
Thanks
BT
If you go to this link, scroll down one page, select your model/year, and drill down to main group 1, sub group 04, illustration 104-01, you can see the oil filler and related parts. As Linnm pointed out above, a leak in this area is often due to overfilling--the oil level is up to one of the joints in the filler that may not be sealing well, and just runs out.
You may also want to check the accordion extension in the filler tube. These are often cracked, and let oil run out when it is being added.
http://www.porsche.com/usa/accessori...artscatalogue/
http://www.porsche.com/usa/accessori...artscatalogue/
06-14-2018, 02:17 PM
#5
[left]My extension is cracked per the dealer mechanic about 18 months ago. Lately I see a few oil drips in the garage right below that area, so I assume that's what it is.
Is it hard to replace? I can do basic mechanical stuff no problem until the space gets too tight or special tools (or tiny hands) are needed.
Thanks
BT
Is it hard to replace? I can do basic mechanical stuff no problem until the space gets too tight or special tools (or tiny hands) are needed.
Thanks
BT
It's actually easy to replace, as it simply presses into the filler tube. However replacement is certainly not necessary, nor recommended on a part that can decompose into your oil tank; where most don't realize this until it is too late and already started to, or has completely crumbled into the oil tank.
Along with an extra quart of oil, and assorted tools and belts, I also carry a funnel.
HTH
Along with an extra quart of oil, and assorted tools and belts, I also carry a funnel.
HTH
06-14-2018, 05:48 PM
#6
RL Community Team
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When you remove the extension be sure it leaves no plastic debris behind. If it does you will need to clean up the debris and change your oil.
When filling the oil:
- Measure the fill with a hot engine while running.
- Only fill to the bottom 1/3 of the fill range on the dip stick
- Make note on the oil fill gauge where it sits for future comparative reference.
- If you put 10 quarts in you are probably overfilling the engine.
- No need to disconnect any oil lines or pipes during an oil change, only replace the filters.
Overfilling can make a mess inside the intake and may contribute to clogged air injector ports in the emissions secondary air injector system. For some, it also leaves the impression of excessive oil usage potentially resulting in the faulty conclusion of the need for a top end rebuild due to consumption.
06-14-2018, 08:00 PM
#7
Instructor
Thanks for the responses.
I think I get it now, but still not sure if/how the extension could be causing my small oil drip.
BT
I think I get it now, but still not sure if/how the extension could be causing my small oil drip.
BT
These things decompose. If your car still has one pull it out and throw it away and use a funnel going forward.
When you remove the extension be sure it leaves no plastic debris behind. If it does you will need to clean up the debris and change your oil.
When filling the oil:
Overfilling can make a mess inside the intake and may contribute to clogged air injector ports in the emissions secondary air injector system. For some, it also leaves the impression of excessive oil usage potentially resulting in the faulty conclusion of the need for a top end rebuild due to consumption.
When you remove the extension be sure it leaves no plastic debris behind. If it does you will need to clean up the debris and change your oil.
When filling the oil:
- Measure the fill with a hot engine while running.
- Only fill to the bottom 1/3 of the fill range on the dip stick
- Make note on the oil fill gauge where it sits for future comparative reference.
- If you put 10 quarts in you are probably overfilling the engine.
- No need to disconnect any oil lines or pipes during an oil change, only replace the filters.
Overfilling can make a mess inside the intake and may contribute to clogged air injector ports in the emissions secondary air injector system. For some, it also leaves the impression of excessive oil usage potentially resulting in the faulty conclusion of the need for a top end rebuild due to consumption.
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06-15-2018, 01:39 PM
#10
Instructor
Thanks everyone! I'll get going on a solution based on responses.
Last edited by BLT; 06-15-2018 at 01:48 PM. Reason: Was originally going to close the thread but I can't figure out how to do that.