rixter

ok, I have a pretty good handle on the K-jet, how it operates and where everything is... now onto L-jet..
most of it seems fairly self-explanatory except the warm up regulator and cold start valve.. Pet doesn't show these and the WSM doesn't seem to have a layout for them in relation to other parts of the injection system (at least that I could find) anyone have a good pic of the engine and location of these 2 parts..

TIA
Rixter

Jim bailey - 928 International

Rixter look at pet for 1981 screen 107-20 and 107-25 they show the start valve 911 606 107 01 and also the auxiliary air regulator 928 606 102 01 which gives you a increased idle speed when cold. There is no warm up regulator on Ljet.... The thermo time switch triggers the electric injector to light the fire when cold the aux air holds up the idle speed.

rixter

ok, so I looked it up on Pet5 (6 won't run on the laptop)
is this correct for the aux air?

PorKen

That's the idle speedup for the A/C pump. You can just see the (silver) aux air valve under the spider in your pic.

Here's the whole system:

click pic for delete thread

rixter

that's what I needed.. thanks Porken!

jpitman2

Its down the rear on L-jets, just visible under the spider near the top right corner of your red outline....popular item lately...
jp 83 Euro S AT 50k

karl ruiter

Unlike the WUR on the CIS this whole system is pretty incidental unless you live in a very cold climate. If you don't mind your idle being a little low at startup you can remove the whole thing.

jarroyo

Is this true? I live in warm sunny Florida and wouldn't mind removing somthing that I don't need anyhow.