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03-23-2017, 03:11 PM
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#61
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Name: Signature600
Title: THA MAN!
Status: Not Here
Join Date: Aug 2006
Location: Jeffersonville, Ohio
Member`s Gallery
Posts: 11,961
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Quote:
Originally Posted by Greg5OH
i mentioned a few times a have set and rechecked via pin timing and a degree wheel on the crank a few times.
i know pin timing isnt exactly 100% accurate as spill port, however as i also mentioned before, when i was near 30 deg, and i laid into the fuel at lower engine speeds there would be severe fuel knock and the engine was more difficult to cold start. pulling almost 15 deg out of it and starts like stock, and putting it to 12.5 deg as per the info plate it starts and sounds good. still has crispt throttle response adn good mileage.
still dont see how retarded static timing would cause intermittent no load stumble when revving it.
Im done babbling for today untill i do some tests on the weekend.
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You haven't said any of this about the degree wheel until now. Good luck with your truck bud...
Chris
__________________
THANKS TO:
Tim Barber @ TRE Diesel
Jeff Mumau @ Mumau Diesel Service
Rip @ Source Automotive
Don Thuren @ ThurenFab Suspension
Columbus Diesel Supply
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03-23-2017, 03:18 PM
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#62
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Name: Greg5OH
Title: Green Behind the Ears
Status: Not Here
Join Date: Feb 2017
Member`s Gallery
Posts: 55
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^well ****, perhaps i didn't. see im not just setting it purely by ear and saying yep, thats 15 deg right there! Im trying to get too much **** done at once and bumbling my info up.
I will report back with some findings soon enough!
Im reading a ncie book which discusses the Ppump pretty well. need to understand this mechanical beast fully.
Fundamentals of Medium/Heavy Duty Diesel Engines - Gus Wright - Google Books
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03-23-2017, 03:32 PM
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#63
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Name: BRE
Title: Too Much Time
Status: Not Here
Join Date: May 2010
Location: Southwest MO
Member`s Gallery
Posts: 12,705
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Quote:
Originally Posted by Greg5OH
turning or tuning tool?
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Timing*. Phone autocorrected and I didn't catch it.
__________________
Rick
07 Dodge 3500 - Tow mirrors, silencer ring MIA, Spectra air filter.
Quote:
Originally Posted by jfaulkner
There really is nothing better than OEM. That goes for anything from turbos to boobs.
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RIP Dex KCCO
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03-24-2017, 08:43 AM
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#64
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Name: Greg5OH
Title: Green Behind the Ears
Status: Not Here
Join Date: Feb 2017
Member`s Gallery
Posts: 55
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well, i was going to crack each line to see if i can isolate this morning, but it was +10C outside, so does not really smoke at these temps..going to be very warm all week...
the solution to my smoking problem is to move to the south from MI
Still installing pressure gauge though.
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03-24-2017, 08:59 AM
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#65
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Name: Signature600
Title: THA MAN!
Status: Not Here
Join Date: Aug 2006
Location: Jeffersonville, Ohio
Member`s Gallery
Posts: 11,961
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Quote:
Originally Posted by Greg5OH
well, i was going to crack each line to see if i can isolate this morning, but it was +10C outside, so does not really smoke at these temps..going to be very warm all week...
the solution to my smoking problem is to move to the south from MI
Still installing pressure gauge though.
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If it goes away when it warms up outside, you don't have a problem, you have an old 12v....
With that, I'm out. Best of luck to you.
Chris
__________________
THANKS TO:
Tim Barber @ TRE Diesel
Jeff Mumau @ Mumau Diesel Service
Rip @ Source Automotive
Don Thuren @ ThurenFab Suspension
Columbus Diesel Supply
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03-24-2017, 06:20 PM
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#66
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Name: BigPapa
Title: Truckless
Status: Not Here
Join Date: Jan 2008
Location: Springfield, TN
Member`s Gallery
Posts: 5,010
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Quote:
Originally Posted by Greg5OH
still dont see how retarded static timing would cause intermittent no load stumble when revving it.
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A P-pump 12V will "stumble" when revved with no load. Nature of the beast.
__________________
Scott
2003 Avalanche Z71
Common sense is like deodorant. The people that need it most never use it.
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03-25-2017, 01:50 PM
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#67
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Name: Snedge
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Sep 2006
Location: Western Pa.
Member`s Gallery
Posts: 18,832
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Quote:
Originally Posted by Signature600
With that, I'm out. Best of luck to you.
Chris
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I like Chris.
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03-25-2017, 05:19 PM
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#68
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Name: BRE
Title: Too Much Time
Status: Not Here
Join Date: May 2010
Location: Southwest MO
Member`s Gallery
Posts: 12,705
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Quote:
Originally Posted by Snedge
I like Chris.
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I was thinking the same thing...
__________________
Rick
07 Dodge 3500 - Tow mirrors, silencer ring MIA, Spectra air filter.
Quote:
Originally Posted by jfaulkner
There really is nothing better than OEM. That goes for anything from turbos to boobs.
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RIP Dex KCCO
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03-25-2017, 05:26 PM
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#69
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Name: RacinDuallie
Title: Black Sheep Racing
Status: Not Here
Join Date: Apr 2006
Location: Supporting Northeast Diesel Racing
Member`s Gallery
Posts: 17,369
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Quote:
Originally Posted by Snedge
I like Chris.
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Bromance?
Yep. Chris is good peeps.
__________________
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03-27-2017, 01:39 PM
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#70
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Name: Greg5OH
Title: Green Behind the Ears
Status: Not Here
Join Date: Feb 2017
Member`s Gallery
Posts: 55
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installed the FP gaauge this week, almost 20 at idle and 25-28 at 2000 or so RPM. so that is good.
Right now I am chasing a coolant leak from the underside of the tstat housing.
Very hard to tell if its between HG or the actual tstat housing.
took it apart, looked ok, put it back together, ran it, still leaked. Realized i left the thin part out. Non cummins gaskets used.
Picked up some cummins gaskets, will take apart, clean it all again, reassemble, and recheck. If its still leaking, then possibly headgasket?
Will pick up a coolant tester, take it to 15-20 psi and see if it can start weeping to see exactly the source.
Hopefully OEM gaskets are the cure..
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03-27-2017, 06:43 PM
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#71
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Name: Redrider2911
Title: Too Much Time
Status: Not Here
Join Date: Nov 2015
Location: Yakima, WA
Member`s Gallery
Posts: 780
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Fuel pressure is a little low in my opinion. Gotta bump that up for the bigger injectors.
__________________
49 Willys Pickup. 5600lb. 11.8sec @115mph 1/4. 12 valve. MegaSquirted 47RH. 3.54 posi rear. 35" tires. 64mm HE351ve, S475 (75/96/1.32), A/W Intercooler. AFC mods. 5x16s. 191 DVs, 180 pump. 23*. 85psi. Build Thread
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03-28-2017, 05:57 AM
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#72
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Name: jasonc
Title: Too Much Time
Status: Not Here
Join Date: Nov 2009
Member`s Gallery
Posts: 4,396
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Thats plenty of fuel pressure, any changes you make there are barking up the wrong tree. I know guys are running like 50psi and it may show gains on a strung out small pump at high rpms. Not needed for your set up. I think a new set of injectors or sending yours off for testing would solve your issue. I didn't read this all but is it only when its real cold it hazes?
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