Blackmage Posted July 31, 2013 Report Share Posted July 31, 2013 Alrightyyyyy, did the 4v swap couple years ago, and since then I have been noticing I get some pretty crazy crankcase pressure. When I turn off the car it makes some pretty funky sounds like air is whistling out of it. And if i pop the hood and pull the dipstick or open the oil cap, i get an extremely noticeable *PSHHHHH*. EGR is deleted, as well as the air injection. The PCV on the passenger head goes straight into the intake tube. The PCV of the drivers side, has a line running from the drivers side of the intake straight into it. Then I have a line running from the same PCV to the back of the intake manifold. I know I have a T fitting on that line, and I think it goes straight to the Fuel pressure regulator. Any ideas why Im getting so much pressure in the crank case? When I did a compression test as I was putting the motor in, everything was good that I can remember. I'll try to do one again here, but not sure where else to go with it...this pic should help a little bit. Link to comment Share on other sites More sharing options...
SniveTroll Posted July 31, 2013 Report Share Posted July 31, 2013 does it run excessively rich? usually when it runs rich the crank case pressure blows past the rings. leaking prematurely at the rear seal and crank is an indicator.- - - Updated - - -pcv valve also. Link to comment Share on other sites More sharing options...
Blackmage Posted July 31, 2013 Author Report Share Posted July 31, 2013 I just pulled the plugs yesterday and they are pretty white... So no richness :-/ Posted via Topify using iPhone/iPad Link to comment Share on other sites More sharing options...
1997cobra Posted July 31, 2013 Report Share Posted July 31, 2013 your pcv routing sounds normal, id try the pcv valves first Link to comment Share on other sites More sharing options...
Blackmage Posted August 1, 2013 Author Report Share Posted August 1, 2013 does it run excessively rich? usually when it runs rich the crank case pressure blows past the rings. leaking prematurely at the rear seal and crank is an indicator.- - - Updated - - -pcv valve also.I'm actually seeing leaking from my valve cover gaskets into the spark plug holes. A little bit in all the holes. Havnt been home yet to try starting it and pullin the oil cap to see what that does Posted via Topify using iPhone/iPad Link to comment Share on other sites More sharing options...
SniveTroll Posted August 1, 2013 Report Share Posted August 1, 2013 that could cause a misfire. misfires lean to a lot of issues. lean/rich mix. depends on how bad the pooling if any is happening. definitely a lead into the issue. Link to comment Share on other sites More sharing options...
Blackmage Posted August 6, 2013 Author Report Share Posted August 6, 2013 alrighty, so someone over at SVTperf made a comment about not supposed to have 2 PCV valves. Removed the one on the passenger side head, put in just an elbow to the intake tube, and WHAMO! problem fixed. Link to comment Share on other sites More sharing options...
F8L GT Posted August 6, 2013 Report Share Posted August 6, 2013 alrighty, so someone over at SVTperf made a comment about not supposed to have 2 PCV valves. Removed the one on the passenger side head, put in just an elbow to the intake tube, and WHAMO! problem fixed.Yup, with 2 valves it can't release the air that's built up because the valves are trapping it in. Even the 2 valves have a pcv valve to plenum on the pass side and straight tube to intake on drivers sideSent from my MILESTONE3 using Tapatalk 2 Link to comment Share on other sites More sharing options...
Blackmage Posted August 6, 2013 Author Report Share Posted August 6, 2013 Yup, with 2 valves it can't release the air that's built up because the valves are trapping it in. Even the 2 valves have a pcv valve to plenum on the pass side and straight tube to intake on drivers sideSent from my MILESTONE3 using Tapatalk 2Yea, once i thought about it, it makes sense. Never gave it much thought, then i went over to my 2v and noticed exactly what you just said. Link to comment Share on other sites More sharing options...
SniveTroll Posted August 7, 2013 Report Share Posted August 7, 2013 whats a PCV valve? Link to comment Share on other sites More sharing options...
Blackmage Posted August 7, 2013 Author Report Share Posted August 7, 2013 something that doesnt deserve to be on my motor Link to comment Share on other sites More sharing options...
SniveTroll Posted August 7, 2013 Report Share Posted August 7, 2013 i use a breather. Link to comment Share on other sites More sharing options...
Blackmage Posted August 7, 2013 Author Report Share Posted August 7, 2013 Do you use a breather on both valve covers? Can I see some pics of your setup? Link to comment Share on other sites More sharing options...
Schiffy Posted August 7, 2013 Report Share Posted August 7, 2013 Do you use a breather on both valve covers? Can I see some pics of your setup?Jason ( [MENTION=9]SniveTroll[/MENTION] ) this man needs pics!!!!! Link to comment Share on other sites More sharing options...
SniveTroll Posted August 7, 2013 Report Share Posted August 7, 2013 1/2" 90* elbow on passenger head hosed to a Tee. then hose from existing fitting to same tee. from Tee routed to breather can. Link to comment Share on other sites More sharing options...
Blackmage Posted August 7, 2013 Author Report Share Posted August 7, 2013 interesting.. thanks! Link to comment Share on other sites More sharing options...
SniveTroll Posted August 7, 2013 Report Share Posted August 7, 2013 yw. you can get one of the ones from JLT or similar that is inline and recircs filtered air into intake. Link to comment Share on other sites More sharing options...
