Yanmar doesn't start.arggggggggggggg!

[artbyjody]

So, I put together the interior after talking to Marty. 80 some degrees, coast is clear have dockside help if needed, and damn thing will not fire up.

1. Last thing I did was replace fuel pump (Yanmar Diesel 30 series) to fix the leaky diesel issue. I ran the engine afterwards for fifteen minutes and then it shut down, last week after job was done. I just figured it was low idle and no load.

2. Cleaned out raw water strainer.

3. Bleed the fuel filter, and manually primed the fuel pump.

4. As of Jan major maintenance of engine items handled buy owner.

It tried to turn over twice, I could smell fuel. But I also smelt something more electronic - in the sense a dry acid smell. I did ensure the water draw was on, bled the fuel filter thinking water, and otherwise a bit at wits end...

When switch for the glow is in the upright position starting from the right to left, Charge light, Water Temp light, Lo Pressure light are lit. When in the down position only the first two are lit...

How do I go about troubleshooting this? Plain sucks...

[artbyjody]

I am doing research - some forums state use WD-40 soaked in a rag at the intake, but starting it can be battery (but it shows 14 Volts), could be a worn starter?

I am not mechanically inclined - any good recommendations for to my dock mechanic in the Seattle area that will not try to schedule me out 3 months from now and not show up. I want this fixed NOW and able to pay for it...

[Stillraining]

Jody ...when you say tried to turn over I am assuming you mean tried to fire? ...

I am leaving at 6 am in the morning fishing or Id come help...I have little marine diesel experance but a LOT of land diesel experance..

It is tough to completely bleed an engine by hand that is not running...I dont know about the electrical smell you experienced...but my guess its in the starting circuit somewhere...could be as simlpe as a loose batterie connection...not a lot of help I know...but theas are a bugger to trace down and figure out by yourself..

You said you ran the engine 15 minutes after fuel pump replacement so this adds to the puzzle..???...My first guess would be fuel starvation due to bleed back of the fuel lines but you seem to be on top of that so its just a process of elination at this point..FWIW I have bought defective parts before... but I would exhaust everything else befor pulling the pump again..

Wish I could be there for you my friend ..I actually like this sort of challenge..

Is there any sort of leaking from the actual injector pump? I have had in shop failures of several things over the years...in other word ...you take a piece of equipment in to get serviced or repaired and while its there something totally unrelated fails...Last year it happened to be a injection pump on a dump truck that was in for break issues...1800.00 additional Later...a new injection pump was on it also..


Good Luck...I will be around next week end if I can help let me know..

273 people will hammer me on this one but if you can get her started with a couple shots of either..you can then bleed her out good. Dont use pre heat with the either though if you try it..And for all you doubters after 21 years in buisness for myself i have never damage an engine starting it this way...so befor you jump on me with "The Manual says" give me 21 years of experance showing me dammages first...I own 17 pieces of heavy equipment so I practice what I preach...Or dont preach it..

[blt2ski]

Did you also bleed that actual injectors at the engine head? I've had some issues with needing to bleed here along with the first fuel filter and second. Altho with it running for 15 min last time, you should really not need to rebleed things, UNLESS you did not find ALL of the air leaks!

Does the motor turn over quickly? If so, then it is probably NOT a battery or starter issue. Being as diesels do not use an electric spark to ignite, that is the only use for electric needs. Otherwise the fuel burns on compression and heat.

It was good talking to you on my way home from NOOD races today!

Marty

[Stillraining]

Just read your second post...

So is it not turning over at a decent speed when engaging the starter?


If that is all then for get all the other stuff I just said...

1) Check and clean all battrie connection for good contact and tightness

2) Same thing at starter and solenoid connection ( follow the battrie cable )

3) If all good...First suspect the solenoid...second the starter..

PS...Very important ...if it is dragging do not lay on the starter button...you will be sending full current to one area of the rotter on the starter and could fry it.!!!!

[artbyjody]

Thanks Marty - and yes, was nice as well - was nice seeing you guys out their on my way back from my delivery today.


SO, to answer the immediate question - did I bleed the injectors - that would be a no. I'll have to ref the manual I guess on that.. my assumption when I replaced the fuel pump - manually do the lever to push the fuel through and that was all that was required. Especially since it ran almost immediately afterwards....The Lo Pressure light bothers me because it was the last thing lit and something I didn't remember seeing before... but then again - I didn't pay to much attention as I have only started it myself three/four times..

I'll see if the manual I have has some instructions on bleeding the injectors as most consensus (from what I can find) is either a fuel or battery issue (but this isn't one), and the last thing I mucked around with was replacing the fuel pump....

Thanks for the input my friend

[artbyjody]

Originally Posted by Stillraining

3) If all good...First suspect the solenoid...second the starter..

PS...Very important ...if it is dragging do not lay on the starter button...you will be sending full current to one area of the rotter on the starter and could fry it.!!!!

Thanks still, I'll look into that. When I first took it out they "dragged" the starting as well...maybe I should just invest in replacing both and be on the safe side... My experience with diesel is it just always work (auto that is)...Worst case I guess - if it fixes the problem that I know how to do it...

I just hate dealing with engines as I am a clutz with book smarts!

[Stillraining]

No sweat Jody...When you said you bled her out the first time i assumed you meant at the injectors as that is the proper place to do it...Why?...because its the last place in the lines you can get to..

With out a remote starter button ( Nice to have one by the way..about 10 bucks at a auto parts store) you have a helper turn the engine over with all injector lines cracked open a turn or so...foamy fuel will come out ...when it clears up tighten up the first cylinders line and wait for the second to clear up...by then she just might start on you and each proceeding injector cleared of frothy fuel and tightened up will bring her into smother and smother operation untill she purrs like a kitten...She may surge a few times and even lug down under load a couple times but she will finely work all the remaining air out on her own..

[artbyjody]

Originally Posted by Stillraining

No sweat Jody...When you said you bleed her out the first time i assumed you meant at the injectors as that is the proper place to do it...Why?...because its the last place in the lines you can get to..

With out a remote starter button ( Nice to have one by the way..about 10 bucks at a auto parts store) you have a helper turn the engine over with all injector lines cracked open a turn or so...foamy fuel will come out ...when it clears up tighten up the first cylinders line and wait for the second to clear up...by then she just might start on you and each proceeding injector cleared of frothy fuel and tightened up will bring her into smother and smother operation untill she purrs like a kitten...She may surge a few times and even lug down under load a couple times but she will finely work all the remaining air out on her own..

That assumption would be wrong - I have no idea where the injectors are!! I just bleed the fuel system... the fuel filter drops nothing but diesel so I assume because when I did it and it ran for fifteen minutes all was well.. I ran it at less than optimum rpm btw...

Like I stated I am not mechanically inclined - I looked at replacing the fuel pump as being as simple as changing a graphic card in a pc...

If it ran for fifteen minutes surely that would eliminate bleeding the fuel injectors?

[Stillraining]

Yes you would think so and that was the premise of my first post...You had it running so it is a process of elimination now...

It sounds to me like you have more of an issue with cold start turning speed then a fuel issue..the more we talk here..

Diesels need a strong cold start speed as mentioned compression is what ignites the fuel ( alibert helped with pre heat ) but if she is laboring to turn over that is 98% of you problum for sure..