i.p. tech question

[hacked89]

RussRepair stops in here regularly. @typ4
And he has replied to my messages here. (not instantly, he's a busy guy)
That's why I got my fuel injection parts from him.

Yep I know Russ from the internet and so does OP but I wasn’t going to speak for him.

 

[Clb]

Yep been there, even handed off some injector cores to him at a norcal g2g.
Check my op...

 

[typ4]

SO,,,, your pump is ****, shot or ,,, choose one. Not totally but getting there, cali fuel kills mileage. My truck would loose 3 mpg EVERY time I fill up there.
What exhaust do you have?
The dually pump did this same thing OE sub 100k pump. floor it, was like a plugged filter.
Order a 90 from R&D and wait.
Best advice I have on short notice
Sorry I dont get in here much. Ill try to do better.
And if Michelle sees a msg on FB she will let me know , or answer!!! Shes a car chick.

 

[Clb]

SO,,,, your pump is ****, shot or ,,, choose one. Not totally but getting there, cali fuel kills mileage. My truck would loose 3 mpg EVERY time I fill up there.
What exhaust do you have?
The dually pump did this same thing OE sub 100k pump. floor it, was like a plugged filter.
Order a 90 from R&D and wait.
Best advice I have on short notice
Sorry I dont get in here much. Ill try to do better.
And if Michelle sees a msg on FB she will let me know , or answer!!! Shes a car chick.

Bawhaha
Life treating you well?
Been a minute.
Factory exhaust.
Truck is bone stock one you saw @ idiots g2g
Can I pick your brain here?
How/why is it shot @sub 60k?
what consumables cause this?
Your pump guy quit also?
Or are you to burried to deal with it?
I'm in your database, you can call if easier.
Thanks for looking in bud

 

[Black dawg]

Were you checking timing at 2000 rpm? and did you happen to notice what timing was at idle?

 

[Clb]

yes and no
timing always set the same way.
historically idle timing is all over the place if i recall

 

[Brian VT]

historically idle timing is all over the place if i recall

...and meaningless even if it were steady.

 

[Black dawg]

Not meaningless if you are using it to judge wear in the advance (transfer pressure) system. A newly rebuilt pump will usually show 12.5 degrees at idle speed with timing set to 8.5 at 2000 rpm.

I have been been able to get quite a bit more life out of pumps by re adjusting the advance cam to get these numbers again.

 

[Brian VT]

Good to know! I've never read that here. Thank you.

 

[Clb]

Not meaningless if you are using it to judge wear in the advance (transfer pressure) system. A newly rebuilt pump will usually show 12.5 degrees at idle speed with timing set to 8.5 at 2000 rpm.

I have been been able to get quite a bit more life out of pumps by re adjusting the advance cam to get these numbers again.

She is gunna come outta her little barn next week. I'M gunna put the meter on @ idle for grins, and report back.

 

[hacked89]

Good to know! I've never read that here. Thank you.

I’m not advocating for playing with the advance cam if you don’t know the basics but I can say that what @Black dawg said is correct. Here is a truck at 8.7 @ 2000 and 12.7 at 900ish

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[quickster]

OK, I guess I'm gonna have to be the one. How do you adjust the advance cam?

 

[ttman4]

OK, I guess I'm gonna have to be the one. How do you adjust the advance cam?

Was reading round here on OB & stumbled up on this thread.

So how do you adjust the advance, & where is the advance? Inquiring minds need to know!!!!