my 60 keeps going, and going, and going....

[andrew7elk]

NEED HELP! my 60 keeps going, and going, and going....

Ok heres the scoop. I got a 1983 FJ60. After driving the truck around for 15-20 mins, (basicly after it gets warmed up) and i shut it off, it doesnt want to shut off, the engine keeps turning over until it eventualy makes this awfull sound and smoke comes out the hood So i have just been puttin my foot on the brake and poping the clutch to get her to shut off (but i am still turning the key off first) Can someone help me out?? Ive heard that this can be a normal thing for diesel trucks, and that it is to do with the timing, is this true? does it have the same effect on a gas?? also should i be poping the clutch or just letting it run???

 

[magFJ60]

This same thing happened to my 1985 60 a few months ago. It's not diesel, but it kept turning over even after I turned it off. I finally popped the clutch and it died out. Its only happened once in the 2 years I've had it. Anyone else with this problem who can shed some light?

Michael

 

[lovetoski]

Page 2-4 in the Emission Control Repair Manual

Problem
Engine Dieseling

Possible Cause
Carburetor problems
*linkage sticking
*idle speed or fast idle out of adjustment
*fuel cut solenoid faulty
Incorrect Timing

Remedy
Carb problems - repair as necessary
Timing - reset

 

[brett76]

ive been having this problem also lately. after adjusting everything from the timing to the carburator screws. i have found out from toyota parts guy who knows cruisers that almost always its the little o-ring at the end of the fuel cutoff solenoid. they just wear out over time. ordered one,(cuz i had some other stuff to order as well) it comes in thurday. then we'll see

 

[FJ60_cruiser]

i'm pretty sure is incorrect timing!!

 

[rove_mcanus]

Not sure about a gas engine, but definately on a diesel that isnt normal. usually it's a stuffed injection pump, but worse case, it could be running on the sump oil.

 

[RoddQLD]

To stop a diesel engine the fuel has to be cut off. On my HJ61 12H-T turbo-diesel it has a fuel cut off solenoid that cuts the fuel when I turn the key off.

On modern petrol engines they usually have a similar thing to prevent 'run on'.
I believe that Brett76 is onto the right thing. If there is no fuel (after switch off) the engine should not run on (timing or otherwise).

It is not caused by incorrect timing on a petrol engine. You have turned the ignition off, so no spark. The 'run on' ignition is caused by hot parts in the engine (hot plugs, bits of carbon, etc) burning any fuel that continues to get into the engine.

The diesel injection pump always pumps while the motor is running so that shouldn't cause that problem with a diesel engine as the fuel cutt-off solenoid stops the fuel (and therefore the engine).

Andrew: I wouldn't let it run on.