If the injector pump is leaking fuel, does it make the motor hard to start. I wind the starter motor over and black fumes out the exhaust. Is this a correct analysis. Thanx for your thorts.
mugenb20b,
Apr 3, 12:09pm
Leaking fuel can cause hard starting, but not always. I would be looking at the air filter too. Get the injectors done at the same time as the pump.
zooki007,
Apr 3, 1:55pm
Get compression and leak-down tests done and also pressurise the cooling system. Replace the glow plugs as well if these tests show it's OK. These motors very prone to cracking heads and dropping tips off glow plugs.
almosttherenow,
Apr 3, 3:44pm
If its hard starting in the morning and/or after sitting long periods of time Id be looking at the glow plug department. Is the pump leaking or are you thinking it must be because its hard to start or what!
zeekay,
Apr 3, 4:19pm
Yes #4, over the last 6 months have been using this vehicle maybe once, about 50km. a week, and now has become hard to start. Will take the glow plugs out and install new ones. Thanx all. Will let the mb no how it goes.
r15,
Apr 3, 5:28pm
the heads generally only crack when they have been overheated. which in a vehicle with higher kms and a neglected cooling system is reasonably common on vehicles with these engines
generally speaking your highly unlikely to have a cracked head unless you've cooked it
mrfxit,
Apr 3, 5:58pm
Don't forget to run a drill bit smaller then glow plug bore size down the glow plug holes before fitting the new plugs. Carbon build up can sometimes break or bend the tip on the new plugs.
almosttherenow,
Apr 4, 6:19am
Test the glow plugs 1st, And check they are getting power and that the timer is working before you throw new 1s in.
zeekay,
Apr 4, 7:49am
Hey almosttherenow. To test glowplugs, do you need to remove glowplugs from motor. Also to test that timer is working, do you need to isolate feed from plug and connect meter to lead and earth.
zeekay,
Apr 4, 10:03am
Here is what I've done. Glowplugs and Timer ok. Motor still wont start. Engage starter motor, motor runs for 1 or 2 seconds and then appears to flood. Now wondering how to access ecu. Which do I bridge to read codes, please, any-one. zeekay
big.b-lil.c,
Apr 4, 10:08am
black smoke is over fuel. map sensor makes them black smoke, along with many other things, but its where i would start.
rob_man,
Apr 4, 10:35am
This might sound a bit left-field but pull the vaccuum feed from the alternator to the 4wd vaccuum solenoid and see if that makes a difference. My earlier model Cruiser does this exact thing sometimes and that's what gets it to start.
dent,
Apr 4, 10:47am
I have found hard starting on those engines befor.It can be the fact the fuel is draining back due to a fault non return valve in the hand primer. Ive just put a one way valve in the fuel line and found this to make a huge difference.
muzz67,
Apr 4, 5:51pm
Is it cranking fast enough! Unlike a petrol which canfire at a very low crankiing speed, a diesel needs to wind fast to get good compression.
ml6989,
Sep 28, 5:51am
Check that your exhaust gas recirculation valve is not stuck partially open.
Since the public registrations are closed, you must have an invite from a current member to be able to register and post in this thread.
Have an account? Login here.