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hard to start withour either

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massamoo14
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PostPosted: Mon Dec 04, 2017 1:58 pm    Post subject: hard to start withour either Reply to specific post Reply with quote

1974 4000 diesel, is almost impossible to start withour either, what is problem, pump, injectors, compression, just a small shot of either and it starts right up, need help and suggestions.

Thanks Mo Twisted Evil
 
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Gene Davis (Ga.)
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PostPosted: Mon Dec 04, 2017 2:09 pm    Post subject: Re: hard to start withour either Reply to specific post Reply with quote

A slow turning starter will cause hard starting for a diesel in cold weather
 
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rrlund
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PostPosted: Mon Dec 04, 2017 2:11 pm    Post subject: Re: hard to start withour either Reply to specific post Reply with quote

Do those have a fuel lift pump on them? My 4040 started giving me fits one time,it wouldn't even start when the engine was warm. The little fuel pump was the problem.
 
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massamoo14
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PostPosted: Mon Dec 04, 2017 2:13 pm    Post subject: Re: hard to start withour either Reply to specific post Reply with quote

Starter seems to be fine
 
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massamoo14
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PostPosted: Mon Dec 04, 2017 2:15 pm    Post subject: Re: hard to start withour either Reply to specific post Reply with quote

No lift pump diesel gravity fed fuel tank.
 
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glennster
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PostPosted: Mon Dec 04, 2017 2:50 pm    Post subject: Re: hard to start withour either Reply to specific post Reply with quote

has it done it for a while, or is this something new? low compression will cause hard starting, or its just the nature of the beast without glow plugs. buddy has a 454 international diesel, and it has an ether starting kit on it. below 75 degrees, it needs a shot to get going. even my skid steer, if its 80 degrees out, first thing in the morning on a cold start, it needs 30 seconds of glow plugs, then its good for the rest of the day.
 
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Stephen Newell
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PostPosted: Mon Dec 04, 2017 3:49 pm    Post subject: Re: hard to start withour either Reply to specific post Reply with quote

You need to find the problem, you can damage a diesel using starting fluid. It sounds like the glow plugs are going bad or there is a voltage problem.
 
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pinball
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PostPosted: Mon Dec 04, 2017 4:22 pm    Post subject: Re: hard to start withour either Reply to specific post Reply with quote

I WOULD DO A COMPRESSION TEST. A diesel has to have the proper compression to start. That will give you a good start to find out why. report back.
 
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tractorguy2
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PostPosted: Mon Dec 04, 2017 4:57 pm    Post subject: Re: hard to start withour either Reply to specific post Reply with quote

Ford 4000 or something else?

My AC WD45 diesel won't start cold without a sniff of either. Been in the family since 1974 when dad bought it brand new short
block and rebuilt head.
 
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thepumpguysc
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PostPosted: Tue Dec 05, 2017 3:53 am    Post subject: Re: hard to start withour either Reply to specific post Reply with quote

I'm gonna assume its a Ford 4000?? Does it have a "thermostart" plug in the intake manifold? is it working..
There should be a small fuel pipe coming off the inj. pump that feed a "glow plug" in the intake manifold..
BUT some have it & others don't..
Another easy check is the inj. pump timing.. theres a timing line on the pump mounting flange & degree marks on the engine block.. NORMALLY the Ford 4000 w/ a CAV DPA pump is set to "O" degrees..
ALL these can be checked w/ no money out of pocket..
 
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D beatty
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PostPosted: Tue Dec 05, 2017 5:51 am    Post subject: Re: hard to start withour either Reply to specific post Reply with quote

Is it hard to start in hot and cold weather or just cold weather? If in cold weather put a Kats tank type block heater on it if you can. It will start easier
and take a lot of wear and tare off starter and batteries,
 
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massamoo14
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PostPosted: Tue Dec 05, 2017 6:41 am    Post subject: Re: hard to start withour either Reply to specific post Reply with quote

CVPost-thepumpguysc wrote:
(quoted from post at 12:53:27 12/05/17) I'm gonna assume its a Ford 4000?? Does it have a "thermostart" plug in the intake manifold? is it working..
There should be a small fuel pipe coming off the inj. pump that feed a "glow plug" in the intake manifold..
BUT some have it & others don't..
Another easy check is the inj. pump timing.. theres a timing line on the pump mounting flange & degree marks on the engine block.. NORMALLY the Ford 4000 w/ a CAV DPA pump is set to "O" degrees..
ALL these can be checked w/ no money out of pocket..


Should I advance or retard it or leave it alone is it is set to 0?
 
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massamoo14
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PostPosted: Tue Dec 05, 2017 6:42 am    Post subject: Re: hard to start withour either Reply to specific post Reply with quote


Forgot to add no thermostat heater on this 4000
 
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rrlund
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PostPosted: Tue Dec 05, 2017 7:13 am    Post subject: Re: hard to start withour either Reply to specific post Reply with quote

Are your rockers out of adjustment so the valves aren't quite closing all the way? It wouldn't take much for them to be too tight and be loosing some compression.
 
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JDEM
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PostPosted: Tue Dec 05, 2017 9:06 am    Post subject: Re: hard to start withour either Reply to specific post Reply with quote

If it fires, right up and runs smooth right away with ether. . . it likely has low fuel delivery at cranking speed. That
comes from injection-pump wear or just cranking too slow. Does start right up after shut down when hot?

Usually if the problem is low compression, once it starts with the ether, it will skip and smoke for awhile.

Have you tried adding an additional battery with jumper-cables to make it crank faster to see if that improves starting?
 
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