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yanmar diesel

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#46 angel187 OFFLINE  

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Posted April 01, 2015 - 09:55 PM

I would not worry too much about it, I would install a latch so you can keep your idle and your highspeed and spring load it so when you need it off it pulls the injector to maximize the underfuel shuting it down as fast as possible.

#47 limebuzz ONLINE  

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Posted April 01, 2015 - 10:22 PM

Ok. Thanks. I will no doubt have more questions as I go.



#48 Cvans ONLINE  

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Posted April 01, 2015 - 11:46 PM

On a couple of my engines I use the decompression to shut them down. Will also use it to when cold to bring up both the rpm's and oil pressure before starting. The 2 cylinder Yanmar's that I have were in TriPac APU's and rated at 13hp. If I remember correctly they are 49? CC

 

Are you planning to install that engine in a boat? This is something I have considered doing with my last Kubota Z430. 


Edited by Cvans, April 01, 2015 - 11:48 PM.


#49 limebuzz ONLINE  

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Posted April 02, 2015 - 05:57 AM

On a couple of my engines I use the decompression to shut them down. Will also use it to when cold to bring up both the rpm's and oil pressure before starting. The 2 cylinder Yanmar's that I have were in TriPac APU's and rated at 13hp. If I remember correctly they are 49? CC

 

Are you planning to install that engine in a boat? This is something I have considered doing with my last Kubota Z430. 

No this engine is going into a MF 1655.



#50 limebuzz ONLINE  

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Posted April 20, 2015 - 06:03 PM

I hot this engine in and running today. Tried to upload a video, but that ain't working. A Lot of blue smoke till it is warmed right up. Don't sound as good as it did when I bench tested it. 



#51 limebuzz ONLINE  

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Posted April 27, 2015 - 08:35 PM

Pick up my second stub shaft tomorrow. So hopefull it will be drivable by night fall. Still have to figure out the wires that I need for the alternator. Any help would be great. It's a carrier alternator.


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#52 limebuzz ONLINE  

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Posted October 04, 2015 - 05:42 PM

ok,so i got the scond stub shaft made and on.All shafts are hooked up. And now,this dang thing wont start. It will run holding the key in the start position and maybe run for 3-5 seconds afteR.What happened?This thing is driving me nuts.getting fuel to injectors and getting smoke out of exhaust.Can anyone tell me what im missing here?

#53 olcowhand ONLINE  

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Posted October 04, 2015 - 08:44 PM

Kind of sounds like air possibly got into the fuel system.  



#54 limebuzz ONLINE  

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Posted October 04, 2015 - 08:57 PM

So just got in from working on it. Finally got it running but no throttle response with the lever. And just pours out the black smoke. Lots of soot ? Checked the valve clearance and found a bent push rod. Straightened it up as best I could, till I can find another. Set them at .23.  



#55 DH1 OFFLINE  

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Posted October 04, 2015 - 09:02 PM

Sounds like it's being difficult, making you work to get it installed, that's no fun.

As far as HP goes, I think Thermo units run a a low rpm, much less than 3600rpm, so there ratings would be for the rpm there running at, it's very possible that at 3600rpm the hp would be more.


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#56 limebuzz ONLINE  

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Posted October 04, 2015 - 10:05 PM

Yes, im at my wits end with this thing. People wonder why I drink. Lol. 



#57 Cvans ONLINE  

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Posted October 04, 2015 - 10:24 PM

Glad your back with updates. :thumbs:

Hang in there. Are you absolutely certain you have ALL the air is out of the system? This is extremely important. If you don't have a manual or electric lift pump your fuel source needs to be located above the injector pump.  

Injection timing needs to be checked as well as the fuel rack setting. You are exhausting a lot of un-burnt fuel for some reason. Is it difficult to start?

Any indication as to what might have bent the push rod? 


Edited by Cvans, October 04, 2015 - 10:25 PM.


#58 limebuzz ONLINE  

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Posted October 05, 2015 - 02:45 AM

Chris, I have the tank above the injector pump. No lift pump or electric pump. As for the bent rod? I have no idea. The fuel timing? This might be my problem. I. had the fuel block out of the injector pump. Lol,how would one go about timing this if he never paid attention to how it looked when he took it apart?



#59 olcowhand ONLINE  

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Posted October 05, 2015 - 07:56 AM

I have read somewhere that these injector pumps need more pressure than gravity provides.  Maybe changes in weather temps may be affecting how it runs or starts.  Has your area been cooler?  Are you using glow plugs?


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#60 limebuzz ONLINE  

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Posted October 05, 2015 - 08:08 AM

I have read somewhere that these injector pumps need more pressure than gravity provides.  Maybe changes in weather temps may be affecting how it runs or starts.  Has your area been cooler?  Are you using glow plugs?

Yes I have been using glow plugs and yes its getting cold here too. I did have the fuel block out to check it over but didn't think to look how the gears were aligned. I'm thinking it has to do with the block actually. I did have this engine running great in late winter without any extra pump.







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