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-   -   Help- Oil Dripping From Y-pipe (https://www.nopistons.com/3rd-generation-specific-18/help-oil-dripping-y-pipe-43757/)

silver_rx7 01-26-2005 05:33 AM

Up to yesterday everything was fine.

This morning, as soon as I started the engine, oil started to drip from the lower o-ring of the y-pipe (about 1 drop per second). It drips more at higher revs. Is the y-pipe supposed to contain that much oil? What's going on? Is it just an o-ring problem? Boost pressure is still good.



Please help!



https://www.nopistons.com/forums/pub...O_DIR#>/11.gif

Fe3Boost 01-26-2005 06:03 AM

I would go a bit further and tear some stuff out of the way. Like take the Y-pipe off! See what is going on they can build some oil and cause a real mess. Sounds like the turbos are working to me. As long as you dont get any smoke from the tail pipe your turbos are running good. https://www.nopistons.com/forums/pub...IR#>/smile.png

Fd3BOOST 01-26-2005 06:58 AM


Originally Posted by Dont_Be_A_Rikki' date='Jan 26 2005, 04:02 AM
I would go a bit further and tear some stuff out of the way. Like take the Y-pipe off! See what is going on they can build some oil and cause a real mess. Sounds like the turbos are working to me. As long as you dont get any smoke from the tail pipe your turbos are running good. https://www.nopistons.com/forums/pub...IR#>/smile.png






Yea but if any oil is in the Y pipe then chances are that there is going to be oil going through the turbo and hence the exhaust. I mean what other oil source is there between the teeUrbo and the Y pipe? NONE. https://www.nopistons.com/forums/pub...R#>/tongue.png I bet the turbos oil seals are worked.

jspecracer7 01-26-2005 07:23 AM

could be blow-by getting all the way back to the turbos. Normally the intercooler catches most of it but it's possible.

Fe3Boost 01-26-2005 08:50 AM


Originally Posted by Fd3BOOST' date='Jan 26 2005, 08:57 AM
Yea but if any oil is in the Y pipe then chances are that there is going to be oil going through the turbo and hence the exhaust. I mean what other oil source is there between the teeUrbo and the Y pipe? NONE. https://www.nopistons.com/forums/pub...R#>/tongue.png I bet the turbos oil seals are worked.






If you read what I said oil in the intake is o.k to a certain extent. Once the oil seal goes then it blows oil out the exhaust. Also a side note if you have a boost leak it can cuase the turbos to get over worked and create alot of oil in the intake track. https://www.nopistons.com/forums/pub...IR#>/blush.png

Fe3Boost 01-26-2005 08:51 AM

one more for ya boost, alot of oil in the intake can lower your octane!

jspecracer7 01-26-2005 09:13 AM

lmfao. Lower octane = BOOM. Not that Rikki knows this.

silver_rx7 01-26-2005 10:11 AM

Thanks for your input.



I let it run for a few minutes, and oil dripping stopped. When I press the gas however a few droplets fly off from the o-ring lower edge. Probably the amount of oil which dripped out in the morning had been accumulating there over many days. A month ago I have installed a greddy smic, and my theory is that since the greddy smic is rigidly mounted to the body, and uses quite rigid hoses to my metal y-pipe, the engine movement stressed the o-ring and it failed. Just hope no y-pipe aluminium is cracked. I plan to replace the IC hoses with hump type hoses to allow some flexibility and hope for the best that my turbos are fine. BTW, my exhaust shows no smoke of any colour, and all the rest seems to be working fine.



[attachment=27564:attachment]

Fe3Boost 01-26-2005 10:16 AM


Originally Posted by silver_rx7' date='Jan 26 2005, 12:10 PM
Thanks for your input.



I let it run for a few minutes, and oil dripping stopped. When I press the gas however a few droplets fly off from the o-ring lower edge. Probably the amount of oil which dripped out in the morning had been accumulating there over many days. A month ago I have installed a greddy smic, and my theory is that since the greddy smic is rigidly mounted to the body, and uses quite rigid hoses to my metal y-pipe, the engine movement stressed the o-ring and it failed. Just hope no y-pipe aluminium is cracked. I plan to replace the IC hoses with hump type hoses to allow some flexibility and hope for the best that my turbos are fine. BTW, my exhaust shows no smoke of any colour, and all the rest seems to be working fine.



[attachment=27564:attachment]




Nice engine bay my man. Great Jorb https://www.nopistons.com/forums/pub...IR#>/bigok.gif

Fd3BOOST 01-26-2005 11:44 AM


Originally Posted by Dont_Be_A_Rikki' date='Jan 26 2005, 06:49 AM
If you read what I said oil in the intake is o.k to a certain extent.






Where in your first post did you say that? https://www.nopistons.com/forums/pub...R#>/tongue.png


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