Hello hamber(s) need you guys knowledge please. I buy a new sbc 350 first time out on the highway for about 2 miles till it sputtered out. Acting like it was starving for fuel. Changed fuel filter checked jets in carb. Still same issue. Took breather and pvc off and it run nice again. Pcv is new. But will it matter if it on p***enger side of motor? I am scared to take it out on road again. I got it to idol nice when i got it back home. After i took the breather and pcv valve off the valve covers started right up nicely
yeah, you need to writer shorter sentences! it's kind of hard to tell what's going on. Maybe you could edit your post, add some periods every now and then.
So basically, it runs/idles with the PCV system disconnected? Did you plug the vacuum port that the hose was connected to when it started to run/idle again or was it open? Maybe post a picture of how you have the PCV system hooked up?
What i did is pull the breather off on driver side. Pull pvc out on p***enger side. left it hooked up on the hose that go to carb with pvc just dangeling and went to start it up and it run fine. Then went to push all that back on and still stayed running.
Sounds very odd. Where do you have the other end of the PCV hose routed to? Maybe the breather & PCV is a red herring, or coincidence. Sounds more like fuel starvation. Is the tank properly vented? Time for a test. Next time it happens pull the gas cap off and see if it will start and run. -Dave
Very strange...I'm not sure how the PVC could be related to your problem, if it's hooked up right. As mentioned, post up some pics and let's see what you got.
Out of all the things to check, what prompted you to pull the pcv out of the valve cover? It's not even in my top 100. I would start with fuel starvation. Check to make sure there are no kinked rubber lines and you have a smooth supply from the fuel tank. Check the fuel bowl and see if it is empty when the engine dies. If the carb is full of fuel then move on to ignition. You'll get it. Good luck! Posted using the Full Custom H.A.M.B. App!
I took distribitor cap of to check to see if the rotor jumped or something. Checked timing everything was ok on that part. I took pcv and breather off and started it up without them on valve covers it idol good . Also like i say i replaced fuel filter. And i did check carb to see if jets got clogged. Scared to take it out on road again and get stuck lol.
I will do the gas cap thing next time. thank you. and i will update this as I am at work today. Ive checked my fuel lines for kinks. Also i have a edelbrok carb and has the port in front for pcv valve hook up.
since you are concerned about PCV - makes no difference at to what side it is on - where do you have it attached to on motor? do you have a breather tube running from opposite valve cover to base of air cleaner? - are there baffles in valve covers that keep oil away from breather holes ? as for running problem - there may be debris in gas tank that is blocking sock on pick up tube - may need to have tank cleaned & sealed
Are you sure you have a breather cap ? Or is it just a cap ? If so there is no make-up air going into the engine and your crank case is being subjected to negative pressure. But this alone shouldn't kill the engine unless your carb is running to rich.
Of course most fuel issues are electrical in nature. You will need 3 thing to run an engine air, fuel and spark. Need to see if the carb is getting fuel when it dies out as well as spark to the plugs. If these things are present then maybe an exorcism...(that's a joke, although I do remember a deuce and a half from my time in Germany that had to be possessed by the devil. But it was a diesel so maybe a completely different thing.) Good luck. -Dave
Lol. I will update into all of this let you guys know what happens i think ill just take it out for a drive again and see what happens. Also will upload some pics as well so you guys can see how i am set up
Unless it's a Billy Idol, then you've gotta turn it up! Sounds like the "runs fine with PCV disconnected" is a coincidence and the real problem lies elsewhere; gas cap vent, ignition or flooding from carb heat. You can just put a breather in each valve cover and plug the vacuum ports, it won't hurt anything. May spread a little oil vapor around.
Well i drove the truck around yesterday and nothing happend. It ran fine i took around town and up on highways for one exit.
Just for ****s and giggles. Next time you have it running at full temp. Pull the PCV valve out and put your finger over the opening and report back as to happen's. Stayed running or died ?
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