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terrything
Samba Member
Joined: January 31, 2010
Posts: 19
Location: Santa Fe, New Mexico
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 Posted: Wed Jul 19, 2017 4:47 pm Post subject: '74 runs funny |
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| My 74 thing starts from a cold situation without much trouble. However, after running for a while then stopping for 20/30 minutes it seems to struggle starting back up. This is backward to any past issues I've had with this and other VW's. Any ideas I can try? |
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DerrickfromNC1
Samba Member
Joined: October 24, 2008
Posts: 1300
Location: North Carolina
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| Posted: Thu Jul 20, 2017 3:57 am Post subject: Re: '74 runs funny |
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| Check the routing of fuel lines in the engine compartment. A fuel line maybe in contact with something hot(intake manifold preheat pipe, shroud, etc.) resulting in vapor lock. |
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ALANSD
Samba Member
Joined: April 16, 2015
Posts: 341
Location: Woodstock, GA
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| Posted: Fri Jul 21, 2017 9:21 am Post subject: Re: '74 runs funny |
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Non Ethanol gas, if you can find it, might be a help. The alcohol in ethanol can cause vapor lock.
_________________
foirmer pro guitarist with 80s band Atlanta
had vws since 1968.buses.ghia,thing....love 'em |
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doublecanister
Samba Member
Joined: September 23, 2008
Posts: 1184
Location: Richmond, Va
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| Posted: Fri Jul 21, 2017 7:41 pm Post subject: Re: '74 runs funny |
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this may be a good read:
http://www.vw-resource.com/vapor_lock.html
my 73 don't start well after a long 55-60mph run.
have to floor it and crank to get it to start.
when it's cold, it starts easy.
hope it helps,
T
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2020 - Mustang Eco Boost [High Performance]
1973 - Thing
1966 - Mustang GT- Fastback
1951 - Ford F1 pickup Flathead V8 |
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YDBD
Samba Member
Joined: February 25, 2017
Posts: 890
Location: Bavaria, Germany
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| Posted: Sat Jul 22, 2017 9:39 am Post subject: Re: '74 runs funny |
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Is it the starter cranking slow, or the engine won't fire?
_________________
'56 pan Dune Buggy since '69
don't live in the past...but when I did:
'67 bug
'64 baja
'60 dune buggy
'73 Personenkraftwagen Type 182 "Thing" |
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terrything
Samba Member
Joined: January 31, 2010
Posts: 19
Location: Santa Fe, New Mexico
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| Posted: Sat Jul 22, 2017 10:25 pm Post subject: Re: '74 runs funny |
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| Starter is turning fine. It just seems like it's flooded or not firing cleanly. Also smells very "gassy" right after starting. Once started it takes a few minutes to smooth out and then runs pretty well. |
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YDBD
Samba Member
Joined: February 25, 2017
Posts: 890
Location: Bavaria, Germany
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| Posted: Sun Jul 23, 2017 8:56 am Post subject: Re: '74 runs funny |
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Stock solex carb?
Does it have the fuel cut off solenoid? Is it working?
Is the choke set correctly?
Seems to me you are getting too much gas for starting at hot temps. Those are two things I would check.
_________________
'56 pan Dune Buggy since '69
don't live in the past...but when I did:
'67 bug
'64 baja
'60 dune buggy
'73 Personenkraftwagen Type 182 "Thing" |
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Ron Domeck
Samba Member
Joined: August 05, 2007
Posts: 1466
Location: louisville Ky
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| Posted: Sun Jul 23, 2017 9:43 am Post subject: Re: '74 runs funny |
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| The owners manual says to hold the pedal down 3/4 down when starting when hot. |
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