Cranking Problems

[dieselgirlanddan]

I just Got A Injector pump put in a month ago. Then took it to the shop last week to get injectors put in it. And the pump turned up. When I Picked up the truck. The idle was real low.

But when I start it up, The starter turns over 15-20 times before it starts up. I also had it static timed.

Okay, Before I had all of this done, It would start right up no problem. Do you think it might be a timing problem or something else?

when you're standing by the left fender of the truck looking at the pump when the pump is turned toward you is that advanced or Retart?

If anyone can help me or give me advice I'd appreciate it...



Thanks,

Diesel Girl







1993 Dodge 350 Club Cab 12v

 

[paccool]

I see this is your first post - welcome to the site.



I believe rotating the pump toward you will retard the timing. What injectors were put in? Does the truck have less power once you get it running?



Sounds like you need to find another shop as the one you are using doesn't seem to know what they are doing. Sounds like the timing is off and that they may have turned the pump down instead of up. You need to have the timing pin set up right and then set the pump timing to 1. 4 or so.

Someone will answer this better than me I'm sure.

 

[Nordby]

Sounds like two different events happened. Did it hard-start after the new pump was added, or after the latest incident with new injectors/pump tweaking?



I agree with paccool, sounds like the pump was turned down rather than up. How does it drive compared to before bringing it in there?



Standing in front of the truck, I believe turning the pump ccw is advancing.



jon

 

[rdodd]

When standing in front of truck the pump would be turned clockwise to advance it i believe.

 

[Tim1]

When the pump is moved towards the enginge, it will advance the timing. The starting hard sounds like maybe so air in the fuel system. Have them bleed the high pressure lines again. Could be retarded. Tim

 

[rdodd]

On my 92 after the timing was advanced the top of pump was turned farther away from engine, which was clockwise when standing in front of truck. Jim Leonard told me the same thing over the phone.

 

[Tim1]

I was just going by whar Piers had told me. I haven't done my timing yet(this weekend). Disregard my last. Tim

 

[JLEONARD]

Assuming ) the timing is correct, it sounds like air in the fuel lines to me. I would double check all the fuel connections, especially those that were removed for the injector change.

I had that problem with a Perkins diesel engine and a WV.

 

[dieselgirlanddan]

Thanks Guys for your Advice. I know My pump is turned away from the motor. My problem started after I had the injectors installed and pump tweaked. I just put my truck back in the shop today. So hopefully, I will find something out soon.

And I will let ya'll know. Amy

















_________________________



1993 D350 Club cab

 

[Power Wagon]

Hard starting is rarely a problem with the pump. Although, sometimes it is...



Tell me, when it starts, does it puff out a small cloud of black, or does it slowly spin into life?



Also, moving the top of the pump towards the engine advances the timing.



You could have an air leak... but that would take time to leak down... so, does it start hard every time, or is it just after it sits for a few hours?



If you answer these, I can make a more intelligent guess...

 

[rdodd]

After looking at my pump i see that i was wrong when i said turn pump cw to advance. Sorry ! JIM LEONARD told me usually you can tell if pump timing has been advanced over stock setting by placing finger between top of pump and engine and if you can't turn finger sideways it probably has been advanced. When set at stock you can turn finger sideways between top of pump and engine.

 

[dieselgirlanddan]

P. W.





When Starting , The motor turns 10-20 revolutions before it starts. Barely puffs out smoke. Don't even smoke hardly anymore. Before I got the injectors done. It would puff out big puff of black smoke But not now. When you get on it, It don't smoke like it did, Before the injectors were put in. My pump is turned away from the block as far as it goes.

Do you know which way you tweak the pump?



Amy













93 D350 Club Cab Le

 

[Power Wagon]

Originally posted by Dieselgirl

P. W.





When Starting , The motor turns 10-20 revolutions before it starts. Barely puffs out smoke. Don't even smoke hardly anymore. Before I got the injectors done. It would puff out big puff of black smoke But not now. When you get on it, It don't smoke like it did, Before the injectors were put in. My pump is turned away from the block as far as it goes.

Do you know which way you tweak the pump?



Amy



93 D350 Club Cab Le

Wow...



Let me give you my best shot at it. To give you some background: I worked in a fuel injection shop for well more than a dozen years, I did some work on the very model injection pump on your truck, and I did quite a number of installs and some tweaking.



Normally: the idle is set with a set screw on the backside of the pump. It is generally set right on the test stand when the pump is rebuilt, and is usually within 50 rpm of the specification, even though there is a range of fuel allowed at that speed.



IF you crank up the fuel, it moves one of the associated governor parts and will generally INCREASE the idle slightly. If you get radical with the fuel screw, it will make a definite difference in the idle speed.



Normally, your pump's position is such that the top diaphragm housing is a man's finger width distance from the edge of the cylinder head. My truck, which is slightly advanced, has sufficient room to get my index finger in the narrow way, but not the wide way. This is not an accurate measurement, but vehicles are sufficiently consistent from engine to engine for it to be generally meaningful.



The fact that your truck now starts slowly, and puffs out only a little bit is probably indicating that they turned your fuel down AND retarded the timing. The fact that your pump is rocked all the way away from the engine in the slots would lead me to guess that they did try to set it, but perhaps left the bolts loose? The timing being that far retarded would tend to inhibit starting quickly, as there simply would not be enough heat to fire immediately.



Does your truck smoke blue when cold? It should not. That, too, is another symptom of retarded injection timing.



I don't know who did the work for you, or anything about them, and not wishing to slander anyone, I can only say what appears to be...



Also, the fuel setting screw comes out of the back of the pump, a little to the block side center, about the level of the idle and max speed stop screws. It has a big metal seal over the top (normally). From the factory, it has a spot-welded collar over it that prevents you from turning the fuel up. If this collar is there, the screw should be in just as far as it will go against the collar and locknut. It really sounds like someone backed it way out, as well. Anyway, I wish yer truck was nearby, as doing this is far too difficult over the internet. There's just too many nuances and whatnot to be very accurate.