Technical 2000 2.8idtd (Sofim 8140.43) Injection pump timing (not timing belt!)

[Torq]

Hi All,
It's a been a while since I was here and it's rare for me to need help but this is one of those times. After a catastrophic engine failure a few years ago ( a snapped inlet valve) I rebuilt my engine, replaced head, pistons, rings, bearings, seals, turbo, rebuilt injectors etc, it's been good since then except it's smokey, diesel smoke not oil.

The wax cold start valve is moving as it should and I've no air leaks. So the only thing I can think of is that the injection pump timing is slightly off. I have the pump adaptor for the dial gauge but the internet has not been able to give me the pin lift measurement in mm when cylinder 1 is at TDC.

I found an Iveco manual for the 8140.43c and it gives the pump lift value of 1.1MM does anyone know of this is the same value for the 8130.43
Thanks in advance
Torq

 

[bugsymike]

Figures should be good, I fitted a Ducato in a boat and actually increased that setting slightly, roughly 1.3.
Photo of manual below confirms your readings.
Just to cheer you up I have rebuilt several Iveco Daily engines in the past and every one that broke the cam belt also bent a con rod when in contact with the valves.
It may not be obvious, but often around a couple of mm shorter, so with head off and two pistons up , one would be lower down the bore.

 

[Torq]

Figures should be good, I fitted a Ducato in a boat and actually increased that setting slightly, roughly 1.3.
Photo of manual below confirms your readings.
Just to cheer you up I have rebuilt several Iveco Daily engines in the past and every one that broke the cam belt also bent a con rod when in contact with the valves.
It may not be obvious, but often around a couple of mm shorter, so with head off and two pistons up , one would be lower down the bore.

Many thanks! As I've no EGR valve I'm looking at the 1.15mm setting. And you've answered another question I had for the future. The idle speed of 750rpm, I needed that to calibrate the rev counter I plan on fitting.

It's the second of these engines I've rebuilt. The first was a 2.8jtd 8140.43s (or maybe it was an n) which had a timing belt tensioner failure giving similar results.

This is no1 piston from this engine, you can see the notch in the valve head where it also took out the injector. But even like that it would still start on 1/2 a turn of the key, obviously running rough!

 

[Communicator]

Hi All,
It's a been a while since I was here and it's rare for me to need help but this is one of those times. After a catastrophic engine failure a few years ago ( a snapped inlet valve) I rebuilt my engine, replaced head, pistons, rings, bearings, seals, turbo, rebuilt injectors etc, it's been good since then except it's smokey, diesel smoke not oil.

The wax cold start valve is moving as it should and I've no air leaks. So the only thing I can think of is that the injection pump timing is slightly off. I have the pump adaptor for the dial gauge but the internet has not been able to give me the pin lift measurement in mm when cylinder 1 is at TDC.

I found an Iveco manual for the 8140.43c and it gives the pump lift value of 1.1MM does anyone know of this is the same value for the 8130.43
Thanks in advance
Torq

View attachment 465926

I have a reference to the 8140.43c which states that it is a throttled version of the 8140,43s. The "s" suffix is obviously incorrect in this context, but maximum power and torque are given as 78 kW, and 260 Nm respectively. These values are both slightly less than the equivalent 90 kW and 270 Nm quoted for the 8140.43 (2.8idTD). Perhaps a slightly higher fuel input could be tolerated?

The 8140.43c is stated to have been used in the Renault Mascott 110 from 1999 to 2004.

 

[Torq]

Figures should be good, I fitted a Ducato in a boat and actually increased that setting slightly, roughly 1.3.
Photo of manual below confirms your readings.
Just to cheer you up I have rebuilt several Iveco Daily engines in the past and every one that broke the cam belt also bent a con rod when in contact with the valves.
It may not be obvious, but often around a couple of mm shorter, so with head off and two pistons up , one would be lower down the bore.

Got a locking pin into the cutout on the flywheel as I was not taking the crankshaft pulley off to get to the timing marks and was able to make a reading on the pump. 1.09mm so .01 outside the +/-0.05 tolerance. Going to adjust it later. Fingers crossed that solves the issue, if not then my next thing to check is the solenoid for the flame start that it is not leaking extra diesel into the inlet manifold.

 

[bugsymike]

Got a locking pin into the cutout on the flywheel as I was not taking the crankshaft pulley off to get to the timing marks and was able to make a reading on the pump. 1.09mm so .01 outside the +/-0.05 tolerance. Going to adjust it later. Fingers crossed that solves the issue, if not then my next thing to check is the solenoid for the flame start that it is not leaking extra diesel into the inlet manifold.

Personally I think that is a small amount and as I said , I set mine even further.
So unlikely to be your problem to my mind.
I have never had an issue with flame starts on my Ivecos, but always worth ckecking.

 

[Torq]

Crankcase breather reservoir, had to come off, Brake servo air pump had to come off to get at the rear nut. But it's done, 0.005mm off but close enough for me. Now to put everything back together and see if it has solved the problem.