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69Bugme
Samba Member
Joined: January 17, 2024
Posts: 21
Location: CA
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 Posted: Fri Feb 23, 2024 8:42 pm Post subject: Help |
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My first Beetle 1969. Runs great, then dies at stop. Four times now in three weeks. Cranks fine, battery strong. After 30 minutes it starts. I changed out coil, plug wires, condenser, then went to dual Empi carbs and headers. It’s a stock 1600 cc single port. This thing rips.
Today, dies at stop sign. Cranks won’t start. Wait 40 minutes and it starts. Engine is not over heating. What say you? |
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busman78
Samba Member
Joined: August 17, 2004
Posts: 4525
Location: Oklahoma City, OK
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| Posted: Sat Feb 24, 2024 3:24 am Post subject: Re: Help |
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| Plugged fuel outlet in tank, or inline filter or both. Outlet in tank has a mesh screen like a filter that can get clogged from years of debris and rust. |
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Schatzievw
Samba Member
Joined: November 11, 2022
Posts: 75
Location: NC
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| Posted: Sat Feb 24, 2024 8:16 am Post subject: Re: Help |
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| Another possibility is an intermittent ignition switch or harness connector on bottom of steering column. |
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radstude
Samba Member
Joined: January 29, 2005
Posts: 397
Location: Lynchburg Va.
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| Posted: Sat Feb 24, 2024 8:49 am Post subject: Re: Help |
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Could it be vapor lock? The old trick was to put a couple wooden clothes pins on the fuel line.
_________________
1967 VW Fastback (Past)
1971 VW Bug (Past)
1975 VW Bus (Past)
2002 VW Mexican Bug 1600i |
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BIGMIKEY
Samba Member
Joined: September 24, 2007
Posts: 1105
Location: North East Pennsylvania
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69Bugme
Samba Member
Joined: January 17, 2024
Posts: 21
Location: CA
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| Posted: Sat Feb 24, 2024 3:14 pm Post subject: Re: Help |
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| Still have the smell. Most think it’s vapor lock but my mechanic still thinks electrical. Just dropped it off. We’ll see. |
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bsairhead
Samba Member
Joined: October 08, 2008
Posts: 3592
Location: viroqua wi.
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| Posted: Sat Feb 24, 2024 3:20 pm Post subject: Re: Help |
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| Sticky needle, Or one spec of fuel hose in the bowl. |
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69Bugme
Samba Member
Joined: January 17, 2024
Posts: 21
Location: CA
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| Posted: Sun Feb 25, 2024 7:52 am Post subject: Re: Help |
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| Carbs are brand new, just installed. Happened with old carb too. I’ll let y’all know what mechanic finds. All my research points to vapor lock. |
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69Bugme
Samba Member
Joined: January 17, 2024
Posts: 21
Location: CA
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| Posted: Sun Mar 03, 2024 8:57 am Post subject: Re: Help |
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Fuel leak was found in soft line just before copper line. It was leaking into heater duct so no spots on the ground.
Starts great when cold. When warm it sometimes won’t start. If you put the gas pedal to floor it fires right up. We will change out fuel pump next. |
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67rustavenger 
Samba Member
Joined: February 24, 2015
Posts: 9779
Location: Oregon
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| Posted: Sun Mar 03, 2024 10:14 am Post subject: Re: Help |
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| 69Bugme wrote: |
Fuel leak was found in soft line just before copper line. It was leaking into heater duct so no spots on the ground.
Starts great when cold. When warm it sometimes won’t start. If you put the gas pedal to floor it fires right up. We will change out fuel pump next. |
The throttle application when warm is quite normal.
I can't find the correct page in the owners manual. But it is listed as a normal operation for hot start up.
If your car is running and driving great. Live with it for now.
_________________
I have learned over the years.
Cheap parts are gonna disappoint you.
Buy Once, Cry Once!
There's never enough time to do it right the first time. But there's always enough time to do it thrice.
GFY's Xevin and VW_Jimbo! |
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Mr. Mike
Samba Member
Joined: January 30, 2015
Posts: 513
Location: Shoreline, WA
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| Posted: Sun Mar 03, 2024 10:46 am Post subject: Re: Help |
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| 67rustavenger wrote: |
| 69Bugme wrote: |
Fuel leak was found in soft line just before copper line. It was leaking into heater duct so no spots on the ground.
Starts great when cold. When warm it sometimes won’t start. If you put the gas pedal to floor it fires right up. We will change out fuel pump next. |
The throttle application when warm is quite normal.
I can't find the correct page in the owners manual. But it is listed as a normal operation for hot start up.
If your car is running and driving great. Live with it for now. |
Page 18, at temps above freezing point or when engine is still warm...From the August 1968 manual for 1969 in the technical dropdown.
_________________
1964 Sedan 6 volt |
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baldessariclan
Samba Member
Joined: October 14, 2016
Posts: 1385
Location: Wichita, KS
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| Posted: Sun Mar 03, 2024 11:02 am Post subject: Re: Help |
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| 67rustavenger wrote: |
| 69Bugme wrote: |
Fuel leak was found in soft line just before copper line. It was leaking into heater duct so no spots on the ground.
Starts great when cold. When warm it sometimes won’t start. If you put the gas pedal to floor it fires right up. We will change out fuel pump next. |
The throttle application when warm is quite normal.
I can't find the correct page in the owners manual. But it is listed as a normal operation for hot start up.
If your car is running and driving great. Live with it for now. |
| 69Bugme wrote: |
| I changed out coil, plug wires, condenser, then went to dual Empi carbs and headers. It’s a stock 1600 cc single port. |
Note that the owner's manual instructions are for stock engine and carb setup.
But with dual aftermarket carbs & etc. modifications, it's anybody's guess as to what will work or not -- each mod job is a law unto itself...
_________________
1971 Standard Beetle — fairly stock / driver
baldessariclan -- often in error, never in doubt... |
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Mr. Mike
Samba Member
Joined: January 30, 2015
Posts: 513
Location: Shoreline, WA
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| Posted: Sun Mar 03, 2024 11:17 am Post subject: Re: Help |
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| 69Bugme wrote: |
| ...then went to dual Empi carbs... |
| baldessariclan wrote: |
| But with dual aftermarket carbs & etc. modifications, it's anybody's guess as to what will work or not -- each mod job is a law unto itself... |
Welp, reading helps. Thoughts it was stock stuff. Good luck!
_________________
1964 Sedan 6 volt |
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69Bugme
Samba Member
Joined: January 17, 2024
Posts: 21
Location: CA
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| Posted: Tue Mar 19, 2024 12:31 pm Post subject: Re: Help |
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| All is well. Turns out that it was the fuel pump. Starts and runs perfect. Thanks all. |
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