Topic: 380 SL warm up regulator (Read 1982 times)

dancat8 · « **on:** November 26, 2009, 08:41:57 AM »

Are the 380 SL and the 450 SL warm up regulators interchangeable? My 380 starts fine when cold but burns rich. It is hard to start when warm and runs fine.

GermanStar · « **Reply #1 on:** November 26, 2009, 10:17:40 PM »

380SL WUR is the same as 1980 450SL only.

dancat8 · « **Reply #2 on:** November 27, 2009, 10:45:04 AM »

Thanks that is all I needed

dancat8 · « **Reply #3 on:** March 14, 2010, 06:23:05 PM »

Since initial post I have done the following. Changed WUR, changed check valves, changed vacuum lines, and adjusted the fuel / air mixture. I is no longer burning rich but still has the hard starting problem when warm. I find that if I turn on the ignition and wait a few seconds then pump the gas as I crank the motor it will start. I think it is losing fuel pressure when warm and it sits for 20 or more minutes. Anyone have any ideas?

News:

Author Topic: 380 SL warm up regulator (Read 1982 times)

dancat8

380 SL warm up regulator

GermanStar

Re: 380 SL warm up regulator

dancat8

Re: 380 SL warm up regulator

dancat8

Re: 380 SL warm up regulator Update on progress