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Baja Forums -:- VW Volkswagen Bug, Baja, Bus, Sandrail and Thing -:- VW Volkswagen & Baja Bug General Discussion -:- Engine leaking gas while parked...
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Engine leaking gas while parked...
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pschneider
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Post Post subject: Engine leaking gas while parked...
Posted: Thu Apr 29, 2010 02:58 AM
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It seems like whenever I take my 68 beetle out for a spin and park it, the engine will drip gas onto the ground. Any idea what this is? I can take some pictures if it helps.
Thanks

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Preston
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Post Post subject: Re: Engine leaking gas while parked...
Posted: Thu Apr 29, 2010 03:48 AM
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pics would help, have you narrowed it down to a certain area it's leaking form? fuel pump? fuel line? fuel filter? carb?


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Post Post subject: Re: Engine leaking gas while parked...
Posted: Thu Apr 29, 2010 04:30 AM
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Have you looked for the source? Your own observations would be more useful than some pics I would think. Suggested areas to look at:
- Fuel line connection at left side frame horn
- fuel line between frame horn and fuel pump
- fuel pump
- fuel line to carb
- carb

If there's enough to find on the ground then the source should be easy to find.


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pschneider
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Post Post subject: Engine leaking gas while parked...
Posted: Thu Apr 29, 2010 09:37 PM
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It appears that it is coming out of the fuel pump? (first picture). It also seems like the breather tube (I think) running from the air intake down through the oil down to the ground may also be leaking something. Any advice?





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AzBaja
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Post Post subject: Engine leaking gas while parked...
Posted: Thu Apr 29, 2010 09:45 PM
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Sounds like bad fuel pump.

That is vent tube, helps the engine "Case" breath. Newer (70's plus) engins use a PVC valve for the same reason. The older the engine (Milage) the more blowby you get, also if you put in too much oil in it you will get the same thing.


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Post Post subject: Engine leaking gas while parked...
Posted: Fri Apr 30, 2010 06:53 AM
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I'm pretty sure losing gas comes from a bad case of lead foot haha Laughing


it could be that you have no hose clamps on the lines going to your fuel pump

for the breather tube what AZBaja said, either getting some blowby or too much oil...Check your oil right after turning off a warmed up engine(that way the oil is running through any oil cooler, external filter, etc.)

Also, do you have valve cover breathers?


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pschneider
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Post Post subject: Engine leaking gas while parked...
Posted: Fri Apr 30, 2010 02:55 PM
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what are valve cover breathers? sorry I am new to this. I will also get some clamps on the hoses and check the oil. Thanks for the help so far.

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Post Post subject: Engine leaking gas while parked...
Posted: Fri Apr 30, 2010 05:20 PM
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Look at the valve cover on this rail, see the hose coming from it?




You drill a hole in the side of the valve cover and put a little fitting in there for a hose to attach to


Here is the one I use...

www.chircoestore.com/c...h45d0e3qt1


It basically helps to vent the case pressure to keep oil from leaking, there pretty much mandatory if you have anything bigger than a 1600. My friend built a 1835 and didn't put a breather system on it and literally blew his oil cap off! sounded like a cannon hahaha


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Post Post subject: Re: Engine leaking gas while parked...
Posted: Sat May 01, 2010 12:10 AM
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Also on the oil breather fittings on the valve covers, it was suggested to me that they should be installed up higher on the valve covers and preferably on the front side. It depends on the space you have and what tins your using. I would think that having the breather tubes on top of the valve covers would be optimal. These were already installed by the PO.

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