- Wed Feb 15, 2012 4:48 am
#294984
Need some help guys i have a boosted b16a2.. for a few months my car been running smooth... now all of sudden theres oil coming out of valve cover port that sits right next to the oil cap.. and now ive been gettin black smoke coming out of the exhaust.... did i do any internal damage or is that normal??
- Wed Feb 15, 2012 1:59 pm
#295038
is what normal? oil coming out of the vent on the valve cover?
sounds like you dont have any way of venting the pressure inside the engine...
get a cheap catch can setup off ebay or something and put it to use.
sounds like you dont have any way of venting the pressure inside the engine...
get a cheap catch can setup off ebay or something and put it to use.
RWMIII wrote:A little piss ant like you isnt worth being banned over.
EG6b20R wrote:Yea he has a bad habit of being overly sarcastic.. .. at the wrong times..
- Wed Feb 15, 2012 2:08 pm
#295041
Yeah it is normal. On a stock motor, that vent has a tube going back into the intake so that the blow-by (oil) and crankcase fumes go back into the engine instead of on the ground/air.
It's a good idea to instal an in-line catch can here on a stock engine IMO. Now throw boost into the mix and you have higher psi in the cyls obviously, but you also have more pressure in your crankcase than you did at stock. This can lead to more blow-by but you really don't want that junk going back into your intake with a turbo setup because the a/f ratios are much more crucial. Ading the blow-by into the mix can cause detonation which can be destructive. So people put a vent on the valve cover which will see more blow-by from increased crankcase pressure. The better solution is a catch can
It's a good idea to instal an in-line catch can here on a stock engine IMO. Now throw boost into the mix and you have higher psi in the cyls obviously, but you also have more pressure in your crankcase than you did at stock. This can lead to more blow-by but you really don't want that junk going back into your intake with a turbo setup because the a/f ratios are much more crucial. Ading the blow-by into the mix can cause detonation which can be destructive. So people put a vent on the valve cover which will see more blow-by from increased crankcase pressure. The better solution is a catch can
Do Not PM me your technical questions. Post them in the forum!
My 1992 SOHC Turbo Hatch
My Youtube Channel: 6th Gear Garage
My 1992 SOHC Turbo Hatch
My Youtube Channel: 6th Gear Garage
- Thu Feb 16, 2012 6:44 am
#295168
ok i just bought a greddy catch can... tell me how to install it so that this solves my blow by issue
teal_dx wrote:Yeah it is normal. On a stock motor, that vent has a tube going back into the intake so that the blow-by (oil) and crankcase fumes go back into the engine instead of on the ground/air.
It's a good idea to instal an in-line catch can here on a stock engine IMO. Now throw boost into the mix and you have higher psi in the cyls obviously, but you also have more pressure in your crankcase than you did at stock. This can lead to more blow-by but you really don't want that junk going back into your intake with a turbo setup because the a/f ratios are much more crucial. Ading the blow-by into the mix can cause detonation which can be destructive. So people put a vent on the valve cover which will see more blow-by from increased crankcase pressure. The better solution is a catch can
ok i just bought a greddy catch can... tell me how to install it so that this solves my blow by issue
- Thu Feb 16, 2012 2:09 pm
#295182
You should have got one with a vent on the top and ran one line from the valve cover and the other line from the black box on the back of the block to vent the crank case. That's the easiest way to set it up on a boosted motor.
If you wanted to get a little more elaborate, you could replace the vent on the can with a line going to the intake before the turbo OR do a slash-cut setup in the exhaust. Either of those will still provide you with a vacuum at higher RPM. A vented catch can won't give you the vacuum but at least you'll let the crankcase vent under boost. I've seen DSM's with the dip stick hose-clamped on because it keeps popping out at high RPM due to the owner not properly venting the crankcase.
If you wanted to get a little more elaborate, you could replace the vent on the can with a line going to the intake before the turbo OR do a slash-cut setup in the exhaust. Either of those will still provide you with a vacuum at higher RPM. A vented catch can won't give you the vacuum but at least you'll let the crankcase vent under boost. I've seen DSM's with the dip stick hose-clamped on because it keeps popping out at high RPM due to the owner not properly venting the crankcase.
Do Not PM me your technical questions. Post them in the forum!
My 1992 SOHC Turbo Hatch
My Youtube Channel: 6th Gear Garage
My 1992 SOHC Turbo Hatch
My Youtube Channel: 6th Gear Garage
- Thu Feb 16, 2012 2:16 pm
#295184
Here's an old topic about this:
http://www.civic-eg.com/viewtopic.php?t=733
there's a couple more links toward the bottom to other diagrams
http://www.civic-eg.com/viewtopic.php?t=733
there's a couple more links toward the bottom to other diagrams
Do Not PM me your technical questions. Post them in the forum!
My 1992 SOHC Turbo Hatch
My Youtube Channel: 6th Gear Garage
My 1992 SOHC Turbo Hatch
My Youtube Channel: 6th Gear Garage