394 blow by, HELP!
February 9th, 2009, 07:19 AM
#1
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394 blow by, HELP!
Here what is going on. About a couple of weeks ago, I had my car running perfect. All of a sudden I took it out for a spin around the neigborhood and the car quit on me. Luckily, I was close to home and had my wife bring over a extra fuel pump that I had. Now after installing this pump. The car just doesn't run right. The eng shakes a little and I get a bunch of blow by out of the filler tube. I have a pcv hooked to it for ventilation.
When I first got the car this was happening to me and I changed the points to pertronix and the blow by stopped. Don't know if related, but it quit shooting oil out.
Now, I had changed the pertronix to points cause the car would not start about 3 weeks ago after replacing timing chain. Thinking that it was defective pertronix. I was wrong, it was the coil, burned up from not running it with out a resistor. Anyway, I put the pertronix back on the car ran, but still the car runs rough at idle and I still have the blow by.
What are your thoughts?
When I first got the car this was happening to me and I changed the points to pertronix and the blow by stopped. Don't know if related, but it quit shooting oil out.
Now, I had changed the pertronix to points cause the car would not start about 3 weeks ago after replacing timing chain. Thinking that it was defective pertronix. I was wrong, it was the coil, burned up from not running it with out a resistor. Anyway, I put the pertronix back on the car ran, but still the car runs rough at idle and I still have the blow by.
What are your thoughts?
February 9th, 2009, 09:38 AM
#2
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When I first got the car this was happening to me and I changed the points to pertronix and the blow by stopped. Don't know if related, but it quit shooting oil out.
I really don't understand this. Strange
Here what is going on. About a couple of weeks ago, I had my car running perfect. All of a sudden I took it out for a spin around the neigborhood and the car quit on me. Luckily, I was close to home and had my wife bring over a extra fuel pump that I had. Now after installing this pump. The car just doesn't run right. The eng shakes a little and I get a bunch of blow by out of the filler tube. I have a pcv hooked to it for ventilation.
You put a bad fuel pump on it. It is sucking oil through the diaphram. It probably had been on the shelf a long time and has a cracked diaphram.
I really don't understand this. Strange
Here what is going on. About a couple of weeks ago, I had my car running perfect. All of a sudden I took it out for a spin around the neigborhood and the car quit on me. Luckily, I was close to home and had my wife bring over a extra fuel pump that I had. Now after installing this pump. The car just doesn't run right. The eng shakes a little and I get a bunch of blow by out of the filler tube. I have a pcv hooked to it for ventilation.
You put a bad fuel pump on it. It is sucking oil through the diaphram. It probably had been on the shelf a long time and has a cracked diaphram.
February 9th, 2009, 10:04 AM
#3
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"You put a bad fuel pump on it. It is sucking oil through the diaphram. It probably had been on the shelf a long time and has a cracked diaphram."
If there is oil being sucked thru the diaphram wouldn't it be leaking oil thru the pump some where on the outside? And would it cause blowby from the filler tube?
If there is oil being sucked thru the diaphram wouldn't it be leaking oil thru the pump some where on the outside? And would it cause blowby from the filler tube?
February 9th, 2009, 10:42 AM
#4
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Posts: 1,142
What year 394? I had the fuel pump with the sponge filter in the bottom of the glass bowl. Long story short - The sponge disintegrated and it ended up sitting up in the fuel bowl of the carbureator. Maybe you have the same problem? A hole in the fuel pump diaphram that is sucking in oil would result in smoke coming out of the tailpipes
February 9th, 2009, 11:48 AM
#5
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Join Date: Feb 2008
Posts: 37
What year 394? I had the fuel pump with the sponge filter in the bottom of the glass bowl. Long story short - The sponge disintegrated and it ended up sitting up in the fuel bowl of the carbureator. Maybe you have the same problem? A hole in the fuel pump diaphram that is sucking in oil would result in smoke coming out of the tailpipes
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