pressurizing crank case and shootin dipstick out..please help - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Campos · 03-31-2005, 07:24 PM

ok, title pretty much explains it...any ideas????? please help, i am torqing the head to 85lbs to rule that out, i just put a cometic 1.1 gasket w/arp studs so that should be fine...will no catch can cause this???

Ritz S14 · 03-31-2005, 07:47 PM

Piston rings are probably fried.

Campos · 03-31-2005, 08:06 PM

compression in 150's all four

TheSnail · 03-31-2005, 08:11 PM

Clean your vpc. Also make sure the hose to it is not obstrucked. Also did you block off the valve cover breather?

Campos · 03-31-2005, 08:47 PM

you mean pcv??? i have a breather filter.... also any-1 have a part# for a new pcv ???

TheSnail · 03-31-2005, 08:55 PM

Just check if the pcv valve blows only in one direction (which it should) before you buy a new one.

ultraDorksGarage · 04-01-2005, 12:42 AM

dipstick shooting out on boost can be turbo seals shot, but if its just at idle shooting out and u have compression and no abnormalities in oil, hard hoses, overheating etc. i dunno, sorry

p.s. i just read your other post about your 400hp @21 psi, is this same motor/car?

Campos · 04-01-2005, 07:22 AM

turbo is brand new just put it on, yes it is the same car, no overheating....hmmmmm, no oil commin out the bov, so i'm sure that end is ok...any other ideas...

ultraDorksGarage · 04-01-2005, 03:30 PM

that sux><
im assuming then that radiator hoses arnet rock hard when u run the motor, oil isnt milky and coolant isnt oily... if hoses are hard headgasket is my guess. ive seen good compression with blown headgasket....

if u unscrew oil cap and run car, does dipstick still shoot out? if it doesnt shoot out then id look for bad pcv/check valve or vaccuum hose hooked up to the wrong things.(be prepared for oil to splash out of the hole though).

Campos · 04-01-2005, 04:01 PM

yaeh no oil/water exchange.....

240silvia · 04-01-2005, 07:58 PM

My coupe with SR was doing the same thing.... The o rings that held in the dipstick were shot... lol... I replaced them and put about 3 wraps of electrical tape on it and it stayed in. Ghetto fix yes, but, it will work til you find out what's really going on.

Blues13 · 04-02-2005, 06:35 AM

Aaah.. shiet. This just happened to me today. Dipstick started popping out recently and today I noticed oil coming out of the BOV. This is on a new turbo too..... does this mean..... my turbo seals are bad?! No oil/coolant mixing so I'll be putting on a catch can today hoping that is the fix.

Campos · 04-02-2005, 09:12 AM

i've read that a dirty air element can cause a vaccuum and make the seals in a turbo suck outa place and shoot oil out. I was havn oil come out my bov on my old turbo but not my new one.

ultraDorksGarage · 04-02-2005, 10:01 AM

Quote:

Originally Posted by drft57pro

i've read that a dirty air element can cause a vaccuum and make the seals in a turbo suck outa place and shoot oil out. I was havn oil come out my bov on my old turbo but not my new one.

i mentioned the turbo seal going earlier but u gotta remember, sometimes seal goes only partially, and at low rpm there is little pressure in turbocentersection, oil drains straight through(at least it should), then during boost, pressure pushes air past seals and into oil galleys. most times this is accompanied by oil saturation on long shutdown periods (smoke on stratup) but sometimes seals go and u only get air leak during boost. you said u had a new turbo, so thought u had ruled out the seals....although most time u just get oil in compressor side when seals go, u shouldnt rule out anything...

try putting old turbo back on and trying that.

and btw, u havent said if it shoots out only during boost, what rpm, or what psi it shoots out at...

edit: and as to the vaccuum leak thing with air element sucking seal out, that is like a plastic bag in intake violently stopping flow, and seal normally dislodges so u have oil shooting out of your exhaust, into your IC and such

*HaLo* · 04-13-2005, 01:07 PM

Hey, I'm bringing this thread back to life. I had the same problem yesterday: blow-by shot my dipstick out and sprayed some oil.

Compression result: 150psi on all cylinders
No mixing between Oil and Coolant
No oil out of the BOV
Happened under boost on a 1-2-3 gear acceleration on a S13 SR with T25 at 7 psi.
No power loss felt
No abnormal reading off my EGT, Boost, Oil pressure gauges

Faulty PCV Valve? How can I check it? Where is it located on a S13 SR...

03-31-2005, 07:24 PM	#1
Campos Zilvia Addict Join Date: Jan 2005 Location: southeast tx Age: 40 Posts: 659 Trader Rating: (2) Feedback Score: 2 reviews	pressurizing crank case and shootin dipstick out..please help ok, title pretty much explains it...any ideas????? please help, i am torqing the head to 85lbs to rule that out, i just put a cometic 1.1 gasket w/arp studs so that should be fine...will no catch can cause this??? __________________ Parting out SR build....

03-31-2005, 08:06 PM	#3
Campos Zilvia Addict Join Date: Jan 2005 Location: southeast tx Age: 40 Posts: 659 Trader Rating: (2) Feedback Score: 2 reviews	compression in 150's all four __________________ Parting out SR build....

03-31-2005, 08:47 PM	#5
Campos Zilvia Addict Join Date: Jan 2005 Location: southeast tx Age: 40 Posts: 659 Trader Rating: (2) Feedback Score: 2 reviews	you mean pcv??? i have a breather filter.... also any-1 have a part# for a new pcv ??? __________________ Parting out SR build....

04-01-2005, 07:22 AM	#8
Campos Zilvia Addict Join Date: Jan 2005 Location: southeast tx Age: 40 Posts: 659 Trader Rating: (2) Feedback Score: 2 reviews	turbo is brand new just put it on, yes it is the same car, no overheating....hmmmmm, no oil commin out the bov, so i'm sure that end is ok...any other ideas... __________________ Parting out SR build....

04-01-2005, 04:01 PM	#10
Campos Zilvia Addict Join Date: Jan 2005 Location: southeast tx Age: 40 Posts: 659 Trader Rating: (2) Feedback Score: 2 reviews	yaeh no oil/water exchange..... __________________ Parting out SR build....

03-31-2005, 07:47 PM	#2
Ritz S14 Post Whore! Join Date: Jul 2004 Location: C A L I F O R N I A Age: 42 Posts: 3,586 Trader Rating: (0) Feedback Score: 0 reviews	Piston rings are probably fried.

03-31-2005, 08:11 PM	#4
TheSnail Nissanaholic! Join Date: Jan 2004 Location: Marietta Georgia Age: 41 Posts: 2,434 Trader Rating: (0) Feedback Score: 0 reviews	Clean your vpc. Also make sure the hose to it is not obstrucked. Also did you block off the valve cover breather?

03-31-2005, 08:55 PM	#6
TheSnail Nissanaholic! Join Date: Jan 2004 Location: Marietta Georgia Age: 41 Posts: 2,434 Trader Rating: (0) Feedback Score: 0 reviews	Just check if the pcv valve blows only in one direction (which it should) before you buy a new one.

04-01-2005, 12:42 AM	#7
ultraDorksGarage Zilvia Member Join Date: Mar 2005 Location: Hawaii Posts: 204 Trader Rating: (0) Feedback Score: 0 reviews	dipstick shooting out on boost can be turbo seals shot, but if its just at idle shooting out and u have compression and no abnormalities in oil, hard hoses, overheating etc. i dunno, sorry p.s. i just read your other post about your 400hp @21 psi, is this same motor/car?

04-01-2005, 03:30 PM	#9
ultraDorksGarage Zilvia Member Join Date: Mar 2005 Location: Hawaii Posts: 204 Trader Rating: (0) Feedback Score: 0 reviews	that sux>< im assuming then that radiator hoses arnet rock hard when u run the motor, oil isnt milky and coolant isnt oily... if hoses are hard headgasket is my guess. ive seen good compression with blown headgasket.... if u unscrew oil cap and run car, does dipstick still shoot out? if it doesnt shoot out then id look for bad pcv/check valve or vaccuum hose hooked up to the wrong things.(be prepared for oil to splash out of the hole though).

04-01-2005, 07:58 PM	#11
240silvia Nissanaholic! Join Date: Jul 2002 Location: Wilmington NC Age: 39 Posts: 2,060 Trader Rating: (3) Feedback Score: 3 reviews	My coupe with SR was doing the same thing.... The o rings that held in the dipstick were shot... lol... I replaced them and put about 3 wraps of electrical tape on it and it stayed in. Ghetto fix yes, but, it will work til you find out what's really going on.

04-02-2005, 06:35 AM	#12
Blues13 Zilvia Junkie Join Date: Jul 2003 Location: OC Posts: 435 Trader Rating: (2) Feedback Score: 2 reviews	Aaah.. shiet. This just happened to me today. Dipstick started popping out recently and today I noticed oil coming out of the BOV. This is on a new turbo too..... does this mean..... my turbo seals are bad?! No oil/coolant mixing so I'll be putting on a catch can today hoping that is the fix. Last edited by Blues13; 04-02-2005 at 06:52 AM..

04-02-2005, 09:12 AM	#13
Campos Zilvia Addict Join Date: Jan 2005 Location: southeast tx Age: 40 Posts: 659 Trader Rating: (2) Feedback Score: 2 reviews	i've read that a dirty air element can cause a vaccuum and make the seals in a turbo suck outa place and shoot oil out. I was havn oil come out my bov on my old turbo but not my new one. __________________ Parting out SR build....

04-13-2005, 01:07 PM	#15
HaLo from Canada, eh! Join Date: Sep 2001 Location: Montreal, Quebec Age: 45 Posts: 5,201 Trader Rating: (0) Rides Gallery: HaLo Feedback Score: 0 reviews	Hey, I'm bringing this thread back to life. I had the same problem yesterday: blow-by shot my dipstick out and sprayed some oil. Compression result: 150psi on all cylinders No mixing between Oil and Coolant No oil out of the BOV Happened under boost on a 1-2-3 gear acceleration on a S13 SR with T25 at 7 psi. No power loss felt No abnormal reading off my EGT, Boost, Oil pressure gauges Faulty PCV Valve? How can I check it? Where is it located on a S13 SR... __________________ -> HaLo Race Car: '98 E36 BMW M3 Daily Drivers: '23 Audi Q4 e-tron & '13 VW Touareg SOLD: 01 GPW Honda S2000 PARTED: 93 Pearl White 240SX LE Fastback w/SR20DET SOLD: 93 Super White 240SX SE Convertible w/Silvia Front