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Old 27-03-2020, 02:32 PM   #1
Blue72
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Default Hot starting difficulty.

Got a slightly odd issue going on with my 1500 s/p Bug:
  1. Cold starting is perfect - immediately cranks into life and runs fine.
  2. Drive until the engine is hot - switch off and then the car will start fine immediately.
  3. Leave it for 5-10 minutes and then the car is really reluctant to start - smells and feels like over-fuelling and it will eventually catch if cranked over long enough.

What I've tried:
  • Check electric choke working correctly
  • Check fuel pump working correctly
  • Check fuel is clean, no debris in bowl
  • Blow through all jets
  • Check float/fuel level
  • Check cut-off solenoid it moving
  • Correct jets in carb
  • Timing etc all correct

Carb is a genuine, refurbed Solex PICT and the car has previously had no issues, but has seen very little use over last 1-2 years.

I've set the fuel level in the bowl actually lower than spec - 15mm - as it just feels like its overfuelling, but it made no difference.

I'm thinking maybe faulty needle valve allowing the carb to over-fill when standing?

Any other ideas?
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