HOWQUICK

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Nine Ball:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">have many 600+hp engines with 3/8" PCV set up</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I do not have a PCV setup on this motor. It was a 1/4" rubber tube, going thru a PCV valve, thru a 1/4" breather filter. Nothing was pulling any positive crankcase pressure out. Your statement above is not similar to mine. 3/8" is also bigger than the 1/4" tube I have.

I put three of those breathers on, and it does not smoke or spew oil anymore. I put another 100 miles on the car last night (604 miles total now) and no signs of oil.

I don't have time right now to do a leakdown, about to head offshore for two weeks. The shop is closed by the time I get off work. I think some of you guys are missing the obvious here, my motor isn't the only big CID one that has had crankcase pressure issues. I doubt it would have happened if I had the PCV hooked up to the intake like normal, but I don't want that oil in my intake with this motor.

Tony</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Well if .125" of line diameter is the difference between why your thing blows gaskets and mine don't....

as long as you are happy my friend...but I think YOU are missing the point. WHY has it got so much blow by?????????

Tim98TA

iTrader: (7)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Nine Ball:
<strong>[QUOTE]I put three of those breathers on, and it does not smoke or spew oil anymore.
Tony</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Tony, try the AIR thing, it WORKS.
I also really think you ought to do the leakdown test. You REALLY shouldn't have to put that many breathers on or go to drastic measures to solve such a minor issue. It's worth a try.

Tim

Nine Ball

iTrader: (38)

Hey, my breather collection isn't fugly! haha. They are very small.

740 miles so far on the engine. No smoke, no oil. I'm not too concerned about the issue as of now.

Tony

LIL SS

iTrader: (9)

Question.. Why don't we do what a lot of the older racers were doing and weld a bung on the valve covers and one on the headers and run a tube between the two to get rid of the pressure. Also thinking about this, a can could be put in the middle so oil isn't coming out of the exhaust. I don't know if it has been mentioned or tried yet (Didn't read all the way through the post)

Glenn98ZM6

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Nine Ball:
<strong>I do not have a PCV setup on this motor. It was a 1/4" rubber tube, going thru a PCV valve, thru a 1/4" breather filter. Nothing was pulling any positive crankcase pressure out. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">this statement reminds me of the first motor (SBC) i built on my own. i fired the motor for a break-in w/ one valve cover hole plugged and the other w/ a PCV in it NOT hooked to a vaccume source. after about a minute of 1500-3500 RPM's, oil started dripping from the front main seal. well, after replacing the main seal 3 times that DAY to try and fix it to no avail, i moved on to finish plumbing in the vaccume lines and electrical stuff. started the motor later that day, and no leak! reached over and pulled the vaccume line off the PCV (still in the valve cover) and the leak returned immediately.
a PCV w/ no vacc. on it will act as a plug. i think (i said i think) it takes more positive pressure than vaccume to open a PCV, am i right here?? isnt vaccume a stronger force than + pressure?
what i'm saying is - even though you thought the breather (@ the end of the PCV) would vent pressure - it couldnt due to the lack of vacc. on the PCV. that may be why it blew the valve cover seal out (it found the weakest seal in the motor and pushed it out).

anyways, i know i'm not a pro - so just tell me i'm wrong if i am.

SS00Blue

Tony:
I'm not looking to make a judgement call here, as, of the two of us, you're the only one I've seen in GMHTP. However, I would like to ask why it seems so incredibly difficult for you to do a simple, twenty minute leakdown test?

No tools? What's your address? I trust you, so I'll send you a BRAND NEW NEVER BEEN USED tester. OK?

I'm a fanatic about the proper way to do things, and 47 breathers in NOT that way. I just want you to know that I'm trying to help you here. You don't have to broadband the results. Just do the test before I explode! KO?

SC

jimmyblue

iTrader: (11)

They make oil / water separators for compressed
air systems. What about a small one of those, in
PCV line? Most have a little petcock at the bottom
for when you have to drain it.

Not pretty, but definitely lined up to the problem.

Terry Burger

iTrader: (4)

Tony take all the fugly little breathers off, and put one large breather on each valve cover. Just drill and tap a 1" hole in each valve cover, and use the nice looking K&N breathers.

Glenn98ZM6

is my above post here on track, or am i being ignored? i wish tony would reply.

ls1fun

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Glenn98ZM6:
<strong>is my above post here on track, or am i being ignored? i wish tony would reply.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">If you read the posts above you would see that he is headed offshore for his job for 2 weeks. I believe that limits his ability to reply. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

Glenn98ZM6

anyone can comment. i was looking for some feedback from anyone as to if i was on the right track w/ my thinking.
but i was also hoping tony would reply asap.

Will Race 4 Food

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by LIL SS:
<strong>Question.. Why don't we do what a lot of the older racers were doing and weld a bung on the valve covers and one on the headers and run a tube between the two to get rid of the pressure. Also thinking about this, a can could be put in the middle so oil isn't coming out of the exhaust. I don't know if it has been mentioned or tried yet (Didn't read all the way through the post)</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Older racer replying:
PCV systems only work when you have vacuum, at WOT you lose that vacuum. The other system you speak of has a oil separator (not breather) that mounts on each valve cover, they plumb to the collectors, about 2.5" past where the primaries meet the collectors. You have to install them at a 45 degree angle, and a one-way valve goes on each. This part only works well at RPM, AND with an open exhaust (not street muffled, not as effective). Moroso sells a kit for the latter, as well as a combination kit of both, which covers both low and WOT (ususally higher revs).
past that, you are getting into vacuum pump systems. BTW, you have to seal your engine up good for these. <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" />