Russell Ormerod

It's not strange at all that when hot it will start fine after 5min but not after 15min.
And RE the 2.6 m103 it has a completely different injection system you cannot compare HFM and K jet hard starting issues. They function totally different!

w124lk

noted. tnx russell
optimusprime: sorry i do not know of this?! should i be worried? hope its not another headache lol ._.

Russell Ormerod

M111 engine does not have EZL. So no worries there.

optimusprime m1

Point taken , some profiles dont give you much to go on .

w124lk

Problem solved. Discovered in the end it was the fuel pressure regulator. Ruptured diaphragm causing fuel to leak and not hold pressure in the rail. Fuel would run through the vacuum line into manifold and flood on next warm start. Regulator worked fine when cold but really lost it when warmed up. Replaced. Starts beautifully.

optimusprime m1

W124 thats great . I to have a little hot start problem .So next fix is the regulator

w124lk

Yeah i remember you having a similar issue. Before you replace anything check and see if your vacuum line has any fuel in it first. It should be dry. If any sign of wetness then the regulator is bad.

optimusprime m1

w124 i will checik it out asap ..Before i start to operate on it ..Thank you