Mercruiser 120 1.7DTI won't start

stobbie · 25 April 2012, 17:11

My engine won't start.
It's on my trailer and it was running fine when parked 6 months ago.
This week I have changed the timing belt. And today I have tried to start it but it won't.
I was afraid that I may have done something wrong with the timing belt, so today I've checked the timing and it seems that is OK.
I've checked if the stopped solenoïd has 12v, it hasn't. Very strange while it was working fine before the storage. So I have put a new wire with 12v on the stop solenoïd, but it still won't start.
I've primed the fuel system, no luck.
When I loosen the injectors there is no diesel when I start. So maybe my stop solenoïd is faulty, but it is difficult to remove.
The strange thing is that the engine doesn't fire up, even when I put easystart into the intake. Even without diesel it should fire up for a few seconds I think..

Anybody has any ideas what I should do now?

benc · 25 April 2012, 17:54

Checked the Kill Cord?

stobbie · 25 April 2012, 17:55

I have put 12v directly on the fuel injection pump, so I have bypassed the kill cord.

Erin · 25 April 2012, 17:59

Don't know much about these engines, but obvious things would be:-

Check you've got fuel
All fuel line valves open
Out of gear
Connections of neutral safety switches all ok (gearbox and throttle lever)

stobbie · 25 April 2012, 18:14

there is fuel to the FIP, but there's no fuel at the injectors.
but also does not start on easystart.

skippermarky · 25 April 2012, 18:38

I have a workshop manual advertised on here, if your interested?? regards Mark

stobbie · 25 April 2012, 18:41

Hi, thanks, but I already have the manual..

Sixy_the_red · 26 April 2012, 18:50

Step away from the easystart! There's clearly something not right, but firing easystart into it is likely to create more damage.

Figure out what the problem is rather than firing something into it that over time will destroy it.

stobbie · 26 April 2012, 20:47

yeah, I know, but it is a way to find out which way to search. Today I have done a compression test, all 4 cilinders equal, so that is positive. Checked timing for the third time, and it is definately spot on. So tried another squirt of easystart, and the engine fired up for a few second and was running smooth. So now I'm sure it's only a fuelling problem. So tomorrow I will try to get the stop solenoid off.

Nos4r2 · 26 April 2012, 21:01

Quote:

Originally Posted by stobbie

yeah, I know, but it is a way to find out which way to search. Today I have done a compression test, all 4 cilinders equal, so that is positive. Checked timing for the third time, and it is definately spot on. So tried another squirt of easystart, and the engine fired up for a few second and was running smooth. So now I'm sure it's only a fuelling problem. So tomorrow I will try to get the stop solenoid off.

You already know it's a fuelling problem-there's no fuel at the injectors. Put the easy start in the bin before you wreck your rings.

biffer · 27 April 2012, 07:11

Run it up on a clean gallon can of fuel and work your way back to the tank. Sounds like a bug in your fuel

stobbie · 27 April 2012, 15:12

compression was only 120 psi per cilinder. I've started the engine for a long time today without the glowplugs so no compression, and now there is some diesel on injector 2 and 3. Engine still will not start. I have now started too long and my starter is dead...
I think I will have to give up...

Jizm · 29 April 2012, 19:28

Quote:

Originally Posted by stobbie

compression was only 120 psi per cilinder. I've started the engine for a long time today without the glowplugs so no compression, and now there is some diesel on injector 2 and 3. Engine still will not start. I have now started too long and my starter is dead...
I think I will have to give up...

Have you burnt out the starter? Go to a car breaker and get a starter motor off an Astra or cavalier 1.7 diesel. It should bolt straight on and It will do until you get yours repaired. I'm not sure what they do to marinise them.