Author Topic: fuel problems cold start valve on the manifold  (Read 3164 times)

Madmerc

  • Guest
fuel problems cold start valve on the manifold
« on: November 12, 2015, 09:31:57 »
im having problems starting the 230sl  I have sorted out the timing issues now,  for fuel problems I am getting plenty of fuel to the injection pump but the fuel line to the cold start is pretty dry blowing some air bubbles ,should there be plenty of fuel in this line .thanks

Madmerc

  • Guest
Re: fuel problems cold start valve on the manifold
« Reply #1 on: November 12, 2015, 11:37:02 »
I want to make sure that I  have the fuel lines correct I just swaped them over the large fuel line goes to the large fuel filter  and the smaller fuel line goes to the smaller fuel filter under the injection pump .hope that's right.

ctaylor738

  • Full Member
  • Platinum
  • ******
  • USA, VA, Falls Church
  • Posts: 1163
Re: fuel problems cold start valve on the manifold
« Reply #2 on: November 12, 2015, 13:46:05 »
You should have full pressure at the cold start valve.

Sounds like you have the lines correct now.  There's no "small filter" under the pump.  I think you are talking about the modulator/regulator.

Chuck Taylor
1963 230SL #00133
1970 280SL #13027 (restored and sold)
1966 230SL #15274 (sold)
1970 280SL #14076 (sold)
Falls Church VA

Benz Dr.

  • Vendor
  • Platinum
  • ******
  • Canada, ON, Port Lambton
  • Posts: 7217
  • Benz Dr.
Re: fuel problems cold start valve on the manifold
« Reply #3 on: November 12, 2015, 23:25:07 »
I thought that thing is a fuel damper and it's supposed to remove pulsations in the fuel line going back to the tank. It could also be a hockey puck that fell into the engine bay.  ;)
1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1988 560SEC

ctaylor738

  • Full Member
  • Platinum
  • ******
  • USA, VA, Falls Church
  • Posts: 1163
Re: fuel problems cold start valve on the manifold
« Reply #4 on: November 13, 2015, 01:18:04 »
We yanks sometimes call it a modulator. :-)
Chuck Taylor
1963 230SL #00133
1970 280SL #13027 (restored and sold)
1966 230SL #15274 (sold)
1970 280SL #14076 (sold)
Falls Church VA

Madmerc

  • Guest
Re: fuel problems cold start valve on the manifold
« Reply #5 on: November 13, 2015, 06:07:24 »
thank you i have full pressure at the cold start now I appreciate  you guys