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TheStanfordWagen
Samba Member
Joined: October 06, 2013
Posts: 99
Location: Dresden, Ohio United States
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 Posted: Sat Mar 28, 2015 12:46 pm Post subject: Went to Check Valves |
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I just went the check the valves in my 1968 Beetle and as soon as I pulled off the valve cover I had about a pint of fluid that smelled like gasoline and looked like it was mixed with oil. Anybody have any idea what is going on with it?
I haven't started the car since yesterday night and I have been having trouble with it all week.
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1968 Type 1 - Royal Red --- Built: September, 1967
1600 Single Port Engine - F1950480 (VW Exchange) Made January 16th, 1970
113-905-205K
Solex 30 PICT-3
Fahrgest.-Nr. 118096544 |
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60ragtop
Bonneville Belt Bitch
Joined: March 13, 2006
Posts: 7800
Location: Big Wonderful WYO 82401
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| Posted: Sat Mar 28, 2015 1:12 pm Post subject: |
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How long since the last oil change?
could be bad fuel pump, float or needle valve in carb, tight valve.
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Rick
Certified Mechanic by the State of Michigan in 1977
ASA certified in 1987
Certified Hunter Wheel Alignment Master Technician 1986
| tasb wrote: |
I've restored a large number too, but I don't toot my horn quite as loud.
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| sb001 wrote: |
maybe he just snapped cause his car sucked  |
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TheStanfordWagen
Samba Member
Joined: October 06, 2013
Posts: 99
Location: Dresden, Ohio United States
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| Posted: Sat Mar 28, 2015 1:26 pm Post subject: |
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I actually just changed the oil last week. I have been having problems with back fire, and slow acceleration. I can't get over 50mph.
_________________
1968 Type 1 - Royal Red --- Built: September, 1967
1600 Single Port Engine - F1950480 (VW Exchange) Made January 16th, 1970
113-905-205K
Solex 30 PICT-3
Fahrgest.-Nr. 118096544 |
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[email protected]
Samba Member
Joined: June 02, 2011
Posts: 1593
Location: Louisville, ky
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| Posted: Sat Mar 28, 2015 1:34 pm Post subject: |
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| It is possible, especially with the bug parked uphill for the carb to dribble gas all night which then runs through the intake manifold and into the piston. Being much thinner than oil it then leaks past the ring into the oil. Gas in the oil pretty much eliminates any lubricating properties of the oil. In other words, do not run the car with gas in the oil. If it smells like gas change it. Also you need to figure out how the carburetor is leaking. Should be easy to verify. Loosen the carburetor enough to slip a piece of paper between it and the intake manifold. Check in a couple minutes and see if the paper is wet with gas. |
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johnnypan
Samba Member
Joined: October 24, 2007
Posts: 7431
Location: sackamenna
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| Posted: Sat Mar 28, 2015 3:19 pm Post subject: |
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| change your fuel pump now. |
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TheStanfordWagen
Samba Member
Joined: October 06, 2013
Posts: 99
Location: Dresden, Ohio United States
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| Posted: Sat Mar 28, 2015 6:13 pm Post subject: |
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I checked the carb and there was gas on the paper. The fuel pump is only a little under a year old. I did check the fluid and it is gas mixed with oil. I drained all the oil and there was a ton of gas in it. This carb has given me nothing but problems. Could the carb be shot? it's a Brosol H30/31 PICT.
_________________
1968 Type 1 - Royal Red --- Built: September, 1967
1600 Single Port Engine - F1950480 (VW Exchange) Made January 16th, 1970
113-905-205K
Solex 30 PICT-3
Fahrgest.-Nr. 118096544 |
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volkswagen_bug
Samba Member
Joined: November 04, 2008
Posts: 759
Location: Sumter, SC
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| Posted: Sat Mar 28, 2015 6:18 pm Post subject: |
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| TheStanfordWagen wrote: |
| I checked the carb and there was gas on the paper. The fuel pump is only a little under a year old. I did check the fluid and it is gas mixed with oil. I drained all the oil and there was a ton of gas in it. This carb has given me nothing but problems. Could the carb be shot? it's a Brosol H30/31 PICT. |
Is your float empty?
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1968 Volkswagen Bug w/ 1600 Dual Port
"It’s better to give than to receive. Especially advice." -Mark Twain |
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Q-Dog
Samba Member
Joined: April 05, 2010
Posts: 8699
Location: Sunset, Louisiana
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| Posted: Sat Mar 28, 2015 6:44 pm Post subject: |
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Well, your carb bowl fuel level could be set too high, the float could be bad, the needle valve could be stuck, the carb could have a crack or void in the casting, the float retainer could be installed backwards ...
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Brian
'69 Dune Buggy
'69 Beetle Convertible
'70 Beetle |
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johnnypan
Samba Member
Joined: October 24, 2007
Posts: 7431
Location: sackamenna
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| Posted: Sat Mar 28, 2015 7:09 pm Post subject: |
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| or the diaphram is leaking on your fuel pump .. |
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Q-Dog
Samba Member
Joined: April 05, 2010
Posts: 8699
Location: Sunset, Louisiana
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| Posted: Sat Mar 28, 2015 7:23 pm Post subject: |
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Crappy running (possibly flooding?), plus gas in oil, plus the paper test says gas is leaking from the carb. Pull the top off the carb and see what you find.
In the mean time, clamp off the fuel line so you don't keep dumping gas into the engine or on the ground.
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Brian
'69 Dune Buggy
'69 Beetle Convertible
'70 Beetle |
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johnnypan
Samba Member
Joined: October 24, 2007
Posts: 7431
Location: sackamenna
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| Posted: Sat Mar 28, 2015 7:54 pm Post subject: |
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| or his fuel pump diaphragm is leaking,dropping fuel pressure causing the car not to run correctly and dumping gas in the oil.. |
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Frank Bassman
Samba Member
Joined: July 01, 2012
Posts: 893
Location: Miami
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| Posted: Mon Mar 30, 2015 6:00 pm Post subject: |
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| I'm with Johnnypan on this one. |
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Aussiebug
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Joined: June 03, 2002
Posts: 2162
Location: Adelaide Australia
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| Posted: Mon Mar 30, 2015 6:21 pm Post subject: |
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| TheStanfordWagen wrote: |
| I checked the carb and there was gas on the paper. The fuel pump is only a little under a year old. I did check the fluid and it is gas mixed with oil. I drained all the oil and there was a ton of gas in it. This carb has given me nothing but problems. Could the carb be shot? it's a Brosol H30/31 PICT. |
As noted by Johnnypan, the most common cause of fuel in the oil is a bad fuel pump. Remove the pump and look at the underside - there should be some grease there, but no wet fuel look and no smell of wet fuel on the undersides of the pump.
BUT, since you say you've had trouble with this carb, you do need to check it too.
Take the top off the carb and look at the fuel level - it should be about 1/2 inch below the top of the float bowl. If the float bowl is full and overflowing, then that can certain leak fuel down into the engine. Possible causes include a leaking float (it should be empty inside), the U shaped plastic clip which holds the float pin down might be inserted the wrong way - the curve in the back of the clip should face the side of the bowl (wrong way and the float can stick), or the needle valve in the top of the carb could be sticking. The carb might be OK and just need some attention, or it might be in need of replacement.
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Rob
Rob and Dave's aircooled VW pages
Repairs and maintenance for the home mechanic
http://www.vw-resource.com |
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TheStanfordWagen
Samba Member
Joined: October 06, 2013
Posts: 99
Location: Dresden, Ohio United States
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| Posted: Fri Apr 03, 2015 4:54 pm Post subject: |
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I checked the fuel pump and it still has grease in it and no smell of gas. I recently purchased and rebuilt a Solex 30 PICT 3 carburetor, which is now installed on the beetle. However, my engine keeps dying and backfiring. I have a Bosch 908 JF4 9230081 094 Distributor. A old time VW mechanic told me that my timing should be at 10 degrees BTDC, which I tried and have the same results as at TDC. I attempted to start the car for a few times and then checked my valve covers and there wasn't any fluid, so that's good. Here is a video of the engine, as it is currently running.
Link
_________________
1968 Type 1 - Royal Red --- Built: September, 1967
1600 Single Port Engine - F1950480 (VW Exchange) Made January 16th, 1970
113-905-205K
Solex 30 PICT-3
Fahrgest.-Nr. 118096544
Last edited by TheStanfordWagen on Fri Apr 03, 2015 5:12 pm; edited 3 times in total |
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TheStanfordWagen
Samba Member
Joined: October 06, 2013
Posts: 99
Location: Dresden, Ohio United States
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| Posted: Fri Apr 03, 2015 4:55 pm Post subject: |
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I am getting the back fire after I rev the engine up to fairly high RPMs.
_________________
1968 Type 1 - Royal Red --- Built: September, 1967
1600 Single Port Engine - F1950480 (VW Exchange) Made January 16th, 1970
113-905-205K
Solex 30 PICT-3
Fahrgest.-Nr. 118096544 |
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