Need Some Injection Pump Help
#1
Need Some Injection Pump Help
Replaced my IP yesterday & this afternoon finally got the air bled out and the truck to start.
It is running really rough & burning excess amount of fuel.
When I press down the accelerator then let off, the truck goes to idle then rev's up slightly. You can see this in the beginning of the video i posted if you listen and watch the RPM's.
I am wondering if this is normal and I just need to fine tune the engine.
I took the high pressure oil pump housing off for ease of removing the pump. I followed the instructions for re installation. I lined up the harmonic balancer at top dead center & lined up the injection pump timing gear the best I could. I wonder if this is a sign I may be a tooth off.
Does the timing just need to be retarded or does it seem like it was installed incorrectly?
I would really appreciate some thoughts on this.
<iframe src="https://www.youtube.com/embed/a4gm6TFFLkM" allowfullscreen="" frameborder="0" height="315" width="560"></iframe>
I put new Injectors & Glow Plugs in last Fall. I just put a new return line kit on as well.
The engine is not leaking fuel from anywhere.
It is running really rough & burning excess amount of fuel.
When I press down the accelerator then let off, the truck goes to idle then rev's up slightly. You can see this in the beginning of the video i posted if you listen and watch the RPM's.
I am wondering if this is normal and I just need to fine tune the engine.
I took the high pressure oil pump housing off for ease of removing the pump. I followed the instructions for re installation. I lined up the harmonic balancer at top dead center & lined up the injection pump timing gear the best I could. I wonder if this is a sign I may be a tooth off.
Does the timing just need to be retarded or does it seem like it was installed incorrectly?
I would really appreciate some thoughts on this.
<iframe src="https://www.youtube.com/embed/a4gm6TFFLkM" allowfullscreen="" frameborder="0" height="315" width="560"></iframe>
I put new Injectors & Glow Plugs in last Fall. I just put a new return line kit on as well.
The engine is not leaking fuel from anywhere.
#2
Join Date: Mar 2005
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#5
#6
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Thanks guys.
I will take it back a part and try to line it up correctly this time.
I was referring to the injection pump housing. While reading the manual I thought that's what was referred to as the HPOP. I must of been mistaken.
I read through all the timing threads and thought finding top dead center and getting it aligned would be easy, that's why I did it this way.
Next time I will do things differently.
I will take it back a part and try to line it up correctly this time.
I was referring to the injection pump housing. While reading the manual I thought that's what was referred to as the HPOP. I must of been mistaken.
I read through all the timing threads and thought finding top dead center and getting it aligned would be easy, that's why I did it this way.
Next time I will do things differently.
#7
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#8
I followed the instructions from the "talk about timing" article from my first attempt to my third. This is a lot more difficult to do than I thought it was going to be.
Harmonic Balancer At Top Dead Center, Line Marked Up Exactly With The O:
Injection Pump Timing Gear Centered & Horizontal Mark Aligned With Housing:
Here's where I went wrong:
I didn't make sure I had compression to the #1 cylinder when setting the harmonic balancer.
I didn't understand what was meant by being "180" out until I understood how the 4 cycle engine works.
This task was only difficult because I didn't have a clue what I was doing when I started.
Apparently I am just a little slow at grasping these concepts.
Harmonic Balancer At Top Dead Center, Line Marked Up Exactly With The O:
Injection Pump Timing Gear Centered & Horizontal Mark Aligned With Housing:
Here's where I went wrong:
I didn't make sure I had compression to the #1 cylinder when setting the harmonic balancer.
I didn't understand what was meant by being "180" out until I understood how the 4 cycle engine works.
This task was only difficult because I didn't have a clue what I was doing when I started.
Apparently I am just a little slow at grasping these concepts.
#10
lol.
I will keep on learning.
I got it running good now. I will fine tune the IP when I have access to the right equipment.
There is so much less blow by and white smoke now that I changed out the CDR Valve & Put the new IP in. I was getting random misfires at high RPM's because of the IP failing.
You warned me last year I would need to replace the IP when I did my Injectors. I'm glad I finally had the money to do it and keep this beast working for me.
I will keep on learning.
I got it running good now. I will fine tune the IP when I have access to the right equipment.
There is so much less blow by and white smoke now that I changed out the CDR Valve & Put the new IP in. I was getting random misfires at high RPM's because of the IP failing.
You warned me last year I would need to replace the IP when I did my Injectors. I'm glad I finally had the money to do it and keep this beast working for me.
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