Sr20det redtop blow by?

[bova17]

Figured out.

[Dillinja666]

Did you just start the motor for the first time? If so the rings need to seat so there will be lots of blow by at first. Should get a lot better after break in.

[bova17]

I'm at about 30miles, my main question is would piston ring blow by come threw the crankcase breather hose at the same pressure as the oil cap?

[Dillinja666]

Yes, they are both coming from same source.

[bova17]

Ok I hope that my valves aren't seating since that's way easier, I tried asking my friends dad, but I don't think he knew what I meant

[Dillinja666]

How much blow by are you getting?

[bova17]

Threw the oil cap is a lot, and the crankcase breather is very little

[Dillinja666]

Well continue proper break in and check it when you're done. If after you are done breaking it in and you're still concerned do a leak down test.

[bova17]

Ok thank you

[Yellow4g63]

Did you buy this motor from a importer or craigslist? sounds like the rings are done.

[bova17]

My cousin I just rebuilt the engine, it has 30miles on it so far

[Yellow4g63]

How long before the sound the of the motor changed after you started it up the 1st time? Did it start to sound better after a few min of running?

[bova17]

No weird noises I hear other than lifter tick, which is going to be bleed tomorrow

[jamg]

did you route your lines correctly?

you could be pressurizing your crankcase, causing a lot of blow by.

[bova17]

http://i1210.photobucket.com/albums/cc413/bova17/s13%20build/6477210B-CE79-4189-8B1A-76BF59FB8B8A_zpsshc820ee.jpg (http://s1210.photobucket.com/user/bova17/media/s13%20build/6477210B-CE79-4189-8B1A-76BF59FB8B8A_zpsshc820ee.jpg.html)
http://i1210.photobucket.com/albums/cc413/bova17/s13%20build/04E91595-4BCA-4454-A439-E5CA50DD419F_zps2kf6uxch.jpg (http://s1210.photobucket.com/user/bova17/media/s13%20build/04E91595-4BCA-4454-A439-E5CA50DD419F_zps2kf6uxch.jpg.html)
http://i1210.photobucket.com/albums/cc413/bova17/s13%20build/503A2EDD-286E-417D-87A6-08D5A74E0F7D_zpsiaqvtw5n.jpg (http://s1210.photobucket.com/user/bova17/media/s13%20build/503A2EDD-286E-417D-87A6-08D5A74E0F7D_zpsiaqvtw5n.jpg.html)
Runs pretty decent idle is a little bouncy but that's most likely the cam.

[Dillinja666]

Where is the vacuum line to your PCV valve?

[bova17]

Where is the vacuum line to your PCV valve?


Is that the fitting on the back left of the valve cover? If so nothing is, I was going to put an air filter on it, is that supposed to go to the intake also? I just saw that people have run that to an oil catch can with a filter and thought a filter would be fine.

[blksylv]

Yea, that's supposed to run to a fitting on the back of your intake manifold. There should've been a swivel fitting included with the manifold or you can just get a 90 degree elbow that threads into the back on the manifold to run a hose from your pcv valve off of your valve cover to. It's not supposed to be left open. There should be suction on your catch can as well. I can tell from the picture but I'm guessing there's a filter on the other port of the catch can? Here's a good thread on catch can set ups. http://zilvia.net/f/showthread.php?t=235851&highlight=catch

[jamg]

Is that the fitting on the back left of the valve cover? If so nothing is, I was going to put an air filter on it, is that supposed to go to the intake also? I just saw that people have run that to an oil catch can with a filter and thought a filter would be fine.

that's the cause of your smoking and burning oil.

mine was the same.

[itsjustdaphne]

You're going to have less blowny gases through the PVC hose because the vc is baffled.. Unlike when you remove the oil cap. Do a leak down test. Boom done