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Old 06-15-2003, 07:01 PM   #1
blwn95stng
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Default blowing out the dipstick

Well I have a powerdyne supercharged mustang. I'm getting pressure in the crank case causeing the dipstick to shoot out. This usaly hapens at high RPM. We did a compresion test last night and it seems the rings are good. Some of the other things I think could be rong are pcv systm some how. I replaced what looked like a stock pcv valve on it at 65,000 mi. I partaily removed the air pump assembly. Post any suggestions.
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Old 06-16-2003, 12:14 AM   #2
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I must ask. Do you have the tube removed from the valve cover to the throttle body.
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Old 06-16-2003, 08:16 PM   #3
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I don't beleive I have removed that tube. It's a 95 if you wondered. I'll check on that. Some of our thoughts are the pcv valve in the car was a non oe pcv valve that was bad, and we replaced it with an oe pcv valve. The car was doing this before the super charger which doesn't make it seem like the supercharger is causeing the build up of pressure. But I will check that tube, thanks for the suggestion.
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Old 06-17-2003, 02:14 PM   #4
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I'll echo what has already been said. You need to remove the tube that goes from the valve cover to the TB (if you haven't already). Also, do you use a breather to help with crankcase pressure?
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Old 06-17-2003, 07:28 PM   #5
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I'm sorry but I'm not seeing this tube your talking about. What does it look like? where doese it go into the tb. I talked to a guy who used to be in the service department of a large dealership here in fortwayne. He said that the screen underneeth the pcv valve was probably blocked. I pulled it tonight and I have to see how that goes. It's already blown the stick out twice. When you talk about this tube going to the "tb" is that on a 95? thanks for your help
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Old 06-17-2003, 09:33 PM   #6
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There is a tube that goes from your valve cover (right under the oil cap) to the side of your throttle body. Here's a pic that shows the path of the tube. It should be the same on your car.
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File Type: jpg mustangpics 002.jpg (375.0 KB, 65 views)
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Old 06-18-2003, 05:40 PM   #7
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ok, now I know what tube your talking about. With the instalation of the supercharger they moved it from the tb to a braket through the side wall of the fender. Shoud this tube be removed? I'm going to go check it for clear flow. I had another person tell me today that the air pump blows air into the heads to help with circulation. Is this true or BS.
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Old 06-18-2003, 07:53 PM   #8
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true but not circulation emissions
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Old 06-20-2003, 12:24 AM   #9
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well I think the next step may be to remove the intake and see what is going on with the pcv system. I'm putting a centerforce on it this weekend and I'll probably do it then. I'll try to talk to a few more people around here about it too. It has a bunch of my friends corn fused...
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Old 06-23-2003, 09:05 PM   #10
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Had the same problem with mine. I had a bad valve and main bearings. Did you check all the cyls for comp? Get your heads checked first before more damage occours. I feel for you man. Do you have a bypass valve. If not get it. Also if all internals check out you can get a CES They are tubes that go from your valve cover into your headers with check valves. It really vents all pressure out. This was happening to mine just before she blew. PM me and I can help you out some more. Good luck bro.
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Old 06-23-2003, 09:17 PM   #11
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CRANKCASE EVACUATION SYSTEM
Designed to reduce pressure build up in the engine case.
Designed primarily for drag race applications.
Kit includes:1 check valve,
1 1 3-1/2"L, 45* cut/threaded tube,which must be welded into
the collector.(Picture shows V8 kit)
$25.00 #MRG.1/26002 How To Order

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Old 06-23-2003, 09:26 PM   #12
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here is a pic of one on an engine

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Old 06-24-2003, 02:16 PM   #13
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Quote:
Originally posted by Stang_Crazy
There is a tube that goes from your valve cover (right under the oil cap) to the side of your throttle body. Here's a pic that shows the path of the tube. It should be the same on your car.
The 94-95 model route the tube from valve cover to air inlet tubr---they differ from ealier models
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Old 06-24-2003, 09:29 PM   #14
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Quote:
Originally posted by bri32zz
The 94-95 model route the tube from valve cover to air inlet tubr---they differ from ealier models
Ahh. I really need to add a 94/95 5.0 to the stable to learn little things like that
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Old 06-27-2003, 04:21 PM   #15
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On the stick, bend the "Z" bends a little more.
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Old 06-27-2003, 10:04 PM   #16
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I put a filter on the breather tube. It has worked so far. I'll keep my fingers crossed.
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Old 07-01-2003, 09:17 PM   #17
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hey i have the holley kit that creates a lot of pressure and WAS sucking oil from that "tube" to the throttle body. i have a breather on there now and cannot see any more oil leaking from that area. BUT, can i remove that tube that goes from the oil filler neck to the TB? what will this do, and what would i put over the hole that would be left? thanks,

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Old 07-25-2003, 07:14 PM   #18
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Quote:
Originally posted by 1jimmy__d
can i remove that tube that goes from the oil filler neck to the TB? what will this do, and what would i put over the hole that would be left? thanks,

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You most defenetly have to remove the tube that goes from the TB to the filler neck on the valve cover. With a blower, the discharge tube is always positive, even at idle. Behind the TB, its negative pressure. It is at a negative pressure while at idle and most of "normal" driving. It only goes positive when you have the TB wide open and you start supplying more air than your engine can use .... backpressure. What you were doing is always blowing in air to your crankcase. Not a good thing. You are seeing the results.
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Old 07-27-2003, 11:36 AM   #19
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what if i dont have a blower, can i still remove it? if so, what do you use to plug the holes with?

thanks
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Old 07-27-2003, 09:28 PM   #20
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If you don't have a blower, its best that you leave everything alone. If you are getting someblow by, you can add the breather element in place of the oil fill cap. All you have to do is get some 3/8" vacuum caps to plug the holes with.
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