Buy Viagra with Dapoxetine online at our pharmacy. No prescription required. Lowest price guaranteed. Free Worldwide Shipping. Reorders huge Discount.
buy antibiotics online


THIS AD DOES NOT APPEAR TO REGISTERED USERS!
Page 1 of 2 12 LastLast
Results 1 to 15 of 16

Thread: Best injection timing 6.5 98.

  1. #1
    Registered User
    Join Date
    Apr 2011
    Location
    Mexico
    Posts
    9
    Member #
    8263


    Default Best injection timing 6.5 98.

    Good nights people, wish to know your opinion about these, Im driving my truck just for pleasure live above 7000 feets (2000 M) actually have TDC -.80 at 4.5 degrees with 4-5mm3 idle 620+-, 178,000M. yap need injectors I Know, BUT HERE IN MEXICO LAND NO INJECTORS, So need to buy those there in USA and is a kind of complicated to my. so need replays to know if can I run beter TDC and Injection timing, please feel free to ask or say By the way Im tech Know the procedures and ETC ETC apreciate serious info. Best regards to all.
    6.5 TD 1998 crew cab dually C3500 K&N Filter, PDM out of Pump, Modified wires from Fire wall to engine, straigth exhaust no cat no silencer. Many projects to put on it.

  2. #2
    Registered User NVW's Avatar
    Join Date
    May 2008
    Location
    Castor, AB.
    Posts
    6,933
    Member #
    110


    Default

    For performance -1.94 and DES and ACT timing set at 8*. It will rattle more and give a slight gain in performance.

    Your idle fuel rate is on the low end, do you have a sensitive throttle?
    Leo
    * 95 GMC 3500 4x4 dually, VIN "F", 4.10 gears, 4L80/E trans, 405,000km, 3" downpipe, 4" exhaust, FSD mounted on heat sink in bumper, #9 resistor, 3 pillar gauge's, High Idle kit, Bosch marine injectors, Bosch Duraterm glow plugs, Leroy's ATT chip, ATT, GP overide, K47 airbox, FTB, Racor fuel filter, fuel pressure gauge
    * 98 Chev. 1500 4x4 VIN "S", 3.73 gears 250,000 km, (needs work)
    * 97 GMC C3500 VIN "F", 4.10 gears, 5 spd manual, 324,000 k (parts)
    * 04 Yukon Denali, 6.0, 196,000 km.
    * GMTD ScanTech
    * CarCode

  3. #3
    Just Another Diesel Guy Turbine Doc's Avatar
    Join Date
    Feb 2008
    Location
    Gautier, Ms./Anywhere Southern USA
    Posts
    6,250
    Member #
    31
    Member of Gulf Coast Diesel Truck Assoc.



    Default

    X2 to what Leo recommends, you say you are tech, what kind of diagnostic tools do you have at your disposal, that you are using for your readings ? if using a Snap On MT2500 your info may not be correct.
    Tim (A-ACLU #29)
    98 (S)K1500,3.73 gear,4L80,Heath 4"exh,Amsoil air & bypass oil flts,Heath fan clutch,Stans Xover,pilar mtd BST/EGT/TRN,remote 12v fan tran cool,PML trans pan, PML diff cover, Hi pops, Heath PCM,Heath remote FSD, HDP Balance Flow, Heath lift pump, SSBC front calipers, EGR rear disc conversion, Goodrich brake lines, No-Slip locker, Roadmaster suspension, Lube specialist oil lines, Putnam lock & load hitch, A-team turbo.

    98 C1500 Burb Heath reflash,exhaust,ATT, Heath cooling system, Heath FSD

  4. #4
    Registered User buddy's Avatar
    Join Date
    Nov 2008
    Location
    California, central coast
    Posts
    6,093
    Member #
    2043


    Default

    You have no way to set the desired and actual injection timing, aside from a different PCM, its programmed in.

    Setting the TDCO -0.80 is alright, although would improve throttle response if a little more negative. I like it under -1.5 to keep the engine quiet. Also unless you set the TDCO yourself, no knowing if that saved value is accurate.

    Asking what you are using for a scanner is a good question, because I dont think GM still had timing as low as 4.5 degrees at idle with OBD2. That makes for a seriously sluggish truck. I have found that 9-10 degrees is a good place to set the idle injection timing, realizing that is cam timing, and is actually 18-20 degrees crank advance.

    The scanner may be working though, and if that is the case, what can cause the timing to read that low is when the crankshaft position sensor (CPS) and the Optical Sensor (OS) in the Injection Pump (IP) are not actually in sync. Like if the CPS is installed incorrectly, which can happen if the mounting tab of the sensor breaks off, or some have a metal mounting tab that can pop off and be put back on wrong, so the sensor goes in out of rotation. If you dont have a potential spun CPS problem and you set your TDCO then you would do real good to get yourself an aftermarket programmed PCM, such as from WalkingJdesigns.com, the Kojo programming, or Heath.
    94 6.5TD C1500 ECLB w/ 50 gallon aux tank/box; 235/75R17 tires on Alloy wheels; 3.42 gears; A-Team Turbo; 4" Aero Turbine 4040 muffler to 5" Aero Turbine 5050XL muffler to 6" tip before rear axle; FSD heatsink, marine injectors; "F" intake; SynBlend 10W-30 oil; Walbro FRB-5 w/ 12 micron prefilter; Feed The Beast; WMI and Propane fumigation; OPS extension & relay; 110K original miles; Engh GMTDScanTech
    Near Future: Battery relocation, Amsoil Nanofilter behind headlight, and stereo upgrades
    Veterans of America Club, member #18

  5. #5
    Registered User
    Join Date
    Apr 2011
    Location
    Mexico
    Posts
    9
    Member #
    8263


    Default

    Ok I have all replayed but Im new so LOST THE THINK Here is again: Hola, Sorry for the lost have go to Mexico City El Monstruo Means DF. Ready now.

    Do you have a sensitive throttle? A: A little Bit

    you say you are tech, what kind of diagnostic tools do you have at your disposal, that you are using for your readings ? A: Genysis 2.0, Auto enginuity Latest Version with enhaced Chevy, Ford, Dodge. Snap On No thanks.

    You have no way to set the desired and actual injection timing, aside from a different PCM, its programmed in. A: Agree its totally true no way to modificate unless reprogram. wich you need a diferent software and a tool to put in the PCM.

    Also unless you set the TDCO yourself, no knowing if that saved value is accurate. A: True and yes done by my self Took 2 hours and for shure its well done.

    I have found that 9-10 degrees is a good place to set the idle injection timing A: Lets test It.

    The scanner may be working though, and if that is the case, what can cause the timing to read that low is when the crankshaft position sensor (CPS) and the Optical Sensor (OS) in the Injection Pump (IP) are not actually in sync. Like if the CPS is installed incorrectly, which can happen if the mounting tab of the sensor breaks off, or some have a metal mounting tab that can pop off and be put back on wrong, so the sensor goes in out of rotation. A: 3 months ago brand new timing Kit by dinagear, (Found inly one here in mexico buyed by ORMA Autopartes Call to dynagear dealer in mexico they gave the info ONLY ONE KIT IN ALL MEXICO) New wather pump BW, All in place for shure. Optical sensor brand new from stanadyne (Oh yea cost lotttttt damn work cause the stealer Stanadyne sayd "Oh yes we have the sensor but you need to bring the IP and we fix it, The cost: Very cheap man 1400dlls" ONLY WOW THESE IS A DAMN OFFFFFEEEEERRRRRRRR,) So my pieces provider in Guadalajara Jalisco that also is my friend get the sensor from the stanadyne stealer (The same they are friends too) And I Put the new one in the IP, By the way get to these point cause some stupid guy how fix the chassis have the wonderfull idea to gave a litle just a litle wash to the heart of my beast, ohhhh yeaaaaahhhhh with a KARCHER mmmmhhhhhmmmmm, and gues what The wires below the IP and the Intake, get fried. these gave me the gift of replace the OPS cost 700 Dlls and 3 days of work, yes redesign the wires all from the Fire wall to sensors an stuffs, Past it from top of the Intake And the pump enlarge the wires to the PDM and relocate in the left cowl a side of the ABS Pump-module. (I Know need new place to put it)

    If you dont have a potential spun CPS problem and you set your TDCO then you would do real good to get yourself an aftermarket programmed PCM, such as from WalkingJdesigns.com, the Kojo programming, or Heath. A: Man THESE IS MEXICOOOOOOOOOO. No PCMs reprogramed, And Dont credit card so Cant buy it from Infiernet, And UPS is the only one bring to mexico the things and if the PCM cost 400Dlls guess what, total 1000Dlls here in mexico. in your opinion what should I do free gift 500Dlls to UPS???????


    6.5 TD 1998 crew cab dually C3500 K&N Filter, PDM out of Pump, Modified wires from Fire wall to engine, straigth exhaust no cat no silencer. Many projects to put on it.

  6. #6
    Registered User ak diesel driver's Avatar
    Join Date
    Feb 2009
    Location
    alaska
    Posts
    9,268
    Member #
    2334


    Default

    sounds like you need to adjust your optical sensor
    96 gmc k2500 4" exhaust, marine inj, #9 resistor, GL4, turbomaster, duraterms,-1.94 TDCO,FTB, remote pmd, isspro pillar gauges, lift pump relay added ,141 block, 2 1000 w block heaters, 2 150w glue on oilpan heaters, 2 150w glue on transpan heaters, 97 K47 air filter , IP replaced at 229k ,gear drive set awaiting install, Parts for intercooler waiting to be installed

    94 k1500 excab sb 6.5 plow truck. Fisher plow w/engine driven pump, F intake, h/m turbomaster, plowing chip by Buddy, remote PMD w#9 resistor, Duraterms

    96 k3500 CC 6.5 dually
    94 k2500 excab lb 6.5 parts truck
    00 burb 5.3 wifes
    70 Ford reg cab lb 428 cj richmond 5spd lockers 35s
    75 Vette built 383 needs work
    62 Tempest convertible way on the back burner project
    85 Honda VF1000R
    90 P30 Cummins BT4 work van
    90 Int SA dump w/trailer
    416c backhoe

  7. #7
    Registered User buddy's Avatar
    Join Date
    Nov 2008
    Location
    California, central coast
    Posts
    6,093
    Member #
    2043


    Default

    Quote Originally Posted by ak diesel driver View Post
    sounds like you need to adjust your optical sensor
    x2, The OS can be set by watching your warm idle fuel rate value. Its explained some on the first page of a list of recommended modification I posted in this other thread
    http://www.thetruckstop.us/forum/sho...l=1#post338555

    I am still leary about you having such low timing advance at idle. Do you have an EGR valve on this engine? Or maybe the stepper motor is not engaging the advance lever on the passenger side of the IP. Does the timing increase while accelerating and cruising at speed?
    94 6.5TD C1500 ECLB w/ 50 gallon aux tank/box; 235/75R17 tires on Alloy wheels; 3.42 gears; A-Team Turbo; 4" Aero Turbine 4040 muffler to 5" Aero Turbine 5050XL muffler to 6" tip before rear axle; FSD heatsink, marine injectors; "F" intake; SynBlend 10W-30 oil; Walbro FRB-5 w/ 12 micron prefilter; Feed The Beast; WMI and Propane fumigation; OPS extension & relay; 110K original miles; Engh GMTDScanTech
    Near Future: Battery relocation, Amsoil Nanofilter behind headlight, and stereo upgrades
    Veterans of America Club, member #18

  8. #8
    Registered User
    Join Date
    Apr 2011
    Location
    Mexico
    Posts
    9
    Member #
    8263


    Default

    Lets see. Desired Inj Timing: 14*- Actual Inj Timing: 14* 600+- Revs (50 around up) -0.80 TDCO In Acceleration goes far as 18* Its low? And No EGR. Last time checked Stepper motor Ok.Mechanically lets read the document. No problem sayd 95 year? Is a 98 the mine still aplyes understod there are modifications. Tanks for the feed back.
    6.5 TD 1998 crew cab dually C3500 K&N Filter, PDM out of Pump, Modified wires from Fire wall to engine, straigth exhaust no cat no silencer. Many projects to put on it.

  9. #9
    Registered User buddy's Avatar
    Join Date
    Nov 2008
    Location
    California, central coast
    Posts
    6,093
    Member #
    2043


    Default

    The OS stuff in the file still applies to the 98 truck, most of the file does apply.

    That timing is not low. I was just going off your original post that said you are at 4.5 degrees, 4-5mm3 at 620rpm idle. 4.5 degrees is very low at normal idle. That fuel rate is a little low at idle, where you could adjust the OS until its back to about 8mm3. Although if its running good there is no real concern to get it done. When its like 0-3mm3 at idle then people start having issues.

    The 14 degrees is likely the PCM programmed to 11 degree advance with cold advance increasing it a few more degrees.
    94 6.5TD C1500 ECLB w/ 50 gallon aux tank/box; 235/75R17 tires on Alloy wheels; 3.42 gears; A-Team Turbo; 4" Aero Turbine 4040 muffler to 5" Aero Turbine 5050XL muffler to 6" tip before rear axle; FSD heatsink, marine injectors; "F" intake; SynBlend 10W-30 oil; Walbro FRB-5 w/ 12 micron prefilter; Feed The Beast; WMI and Propane fumigation; OPS extension & relay; 110K original miles; Engh GMTDScanTech
    Near Future: Battery relocation, Amsoil Nanofilter behind headlight, and stereo upgrades
    Veterans of America Club, member #18

  10. #10
    Registered User
    Join Date
    Apr 2011
    Location
    Mexico
    Posts
    9
    Member #
    8263


    Default

    Mea culpa, (My mistake) I means, 4.5* when adjusting. When make the test: Desired: 0* Actual 4.5* And in normal function the avobe: Desired Inj Timing: 14*- Actual Inj Timing: 14* 600+- Revs (50 around up) -0.80 TDCO with 5mm3 and with A/C on goes to 8mm3. Again sorry for the mistake.
    Let me tell today make 10 phone calls to search the Fuel filter, And the case depression reg. Valvle. And guess what NO ONE STORE HAVE THE THINKS. I Love my country. I read the document lets see what hapens with the time and tomorrow make the adjustments let you Know guys and really apreciate the feed back.
    6.5 TD 1998 crew cab dually C3500 K&N Filter, PDM out of Pump, Modified wires from Fire wall to engine, straigth exhaust no cat no silencer. Many projects to put on it.

  11. #11
    Just Another Diesel Guy Turbine Doc's Avatar
    Join Date
    Feb 2008
    Location
    Gautier, Ms./Anywhere Southern USA
    Posts
    6,250
    Member #
    31
    Member of Gulf Coast Diesel Truck Assoc.



    Default

    Ahhh that makes more sense, 4.5* is what you are showing when in time set correct ??? if that is case you are too far advanced, it should be around 3.5 stock for average, I like to set for 3.6* as that puts you in neighborhood of -1.95 for TDCO when you come out of time set and you do the ko/ko with APP to floor TDCO learn command
    Tim (A-ACLU #29)
    98 (S)K1500,3.73 gear,4L80,Heath 4"exh,Amsoil air & bypass oil flts,Heath fan clutch,Stans Xover,pilar mtd BST/EGT/TRN,remote 12v fan tran cool,PML trans pan, PML diff cover, Hi pops, Heath PCM,Heath remote FSD, HDP Balance Flow, Heath lift pump, SSBC front calipers, EGR rear disc conversion, Goodrich brake lines, No-Slip locker, Roadmaster suspension, Lube specialist oil lines, Putnam lock & load hitch, A-team turbo.

    98 C1500 Burb Heath reflash,exhaust,ATT, Heath cooling system, Heath FSD

  12. #12
    Registered User
    Join Date
    Apr 2011
    Location
    Mexico
    Posts
    9
    Member #
    8263


    Default

    So lets say put TDCO In -1.9 and Act Inj T: 8* for performance? Its posible? Or 3.5* -1.9 TDCO, Shure in adjustment phase (time set) By the way was reading about the use of Kerosene What is the proportion? For safe and good work, mixed with diesel and 2T Oil Let me Know In mexico NO BIG DEAL WITH THESE Finally an advantage to live here fo the diesels jajajaja. Tomorrow go to buy a ton of Kerosene jajaja.
    6.5 TD 1998 crew cab dually C3500 K&N Filter, PDM out of Pump, Modified wires from Fire wall to engine, straigth exhaust no cat no silencer. Many projects to put on it.

  13. #13
    Registered User buddy's Avatar
    Join Date
    Nov 2008
    Location
    California, central coast
    Posts
    6,093
    Member #
    2043


    Default

    When they mentioned 8* timing for performance, I think they were referring to when setting the TDCO some people refer to it as advancing it to 8* to get a -1.94 TDCO value. That is somewhat misleading, because it more like Turbine Dock described, where you set it to a little over 3.5* during the Time Set/TDCO procedure. However that is camshaft referenced, and crankshaft is double that, so when camshaft timing is 3.8* "base timing" then your crank advance base timing would be 7.6*. Whereas it was about 7* to begin with when setting it per the factory specification of 3.5* that produces a TDCO of -0.25 to -0.75.

    I will say that the Time Set value can go down after you actually perform the TDCO learn, so run that time set again and it may actually be about 3.6* now.
    94 6.5TD C1500 ECLB w/ 50 gallon aux tank/box; 235/75R17 tires on Alloy wheels; 3.42 gears; A-Team Turbo; 4" Aero Turbine 4040 muffler to 5" Aero Turbine 5050XL muffler to 6" tip before rear axle; FSD heatsink, marine injectors; "F" intake; SynBlend 10W-30 oil; Walbro FRB-5 w/ 12 micron prefilter; Feed The Beast; WMI and Propane fumigation; OPS extension & relay; 110K original miles; Engh GMTDScanTech
    Near Future: Battery relocation, Amsoil Nanofilter behind headlight, and stereo upgrades
    Veterans of America Club, member #18

  14. #14
    Registered User
    Join Date
    Apr 2011
    Location
    Mexico
    Posts
    9
    Member #
    8263


    Default

    Al ready did it yesterday and stills in -.8, Today need to see the doc so bussy Day, But tomorrow get it done the full procedure to adjust in -1.94 TDCO, only for clearance to my small mind. -1.94 TDCO, Desired: 0* Actual: Wheteaver It Gets? Or try to get the OEM 3.5*? Understod If move the TDCO the Injection timing its proportional. If Im Wrong let me Know, And about the Kerosene?????????? Some one how feeeeeeddddddddmeeeeeeee pleaseeeeeeeee.
    6.5 TD 1998 crew cab dually C3500 K&N Filter, PDM out of Pump, Modified wires from Fire wall to engine, straigth exhaust no cat no silencer. Many projects to put on it.

  15. #15
    Registered User buddy's Avatar
    Join Date
    Nov 2008
    Location
    California, central coast
    Posts
    6,093
    Member #
    2043


    Default

    The truck should burn kerosene alright, with 2-cycle oil added. If you are going to try it, maybe mix it 50/50 with diesel and put at least a quart of 2-cycle oil in the tank, but I would not add more than 2 quarts of 2-cycle oil.

    Are you running #1 LSD fuel now?
    94 6.5TD C1500 ECLB w/ 50 gallon aux tank/box; 235/75R17 tires on Alloy wheels; 3.42 gears; A-Team Turbo; 4" Aero Turbine 4040 muffler to 5" Aero Turbine 5050XL muffler to 6" tip before rear axle; FSD heatsink, marine injectors; "F" intake; SynBlend 10W-30 oil; Walbro FRB-5 w/ 12 micron prefilter; Feed The Beast; WMI and Propane fumigation; OPS extension & relay; 110K original miles; Engh GMTDScanTech
    Near Future: Battery relocation, Amsoil Nanofilter behind headlight, and stereo upgrades
    Veterans of America Club, member #18

Page 1 of 2 12 LastLast

Similar Threads

  1. 6.5 injection pump timing wrench?
    By Crankme69 in forum GM 6.5 Diesel Engines
    Replies: 60
    Last Post: 09-17-2012, 09:58 PM
  2. FYI: TDCO - Timing the DS4 Injection Pump
    By gmctd in forum 6.2 and 6.5 Technical Reference Library
    Replies: 5
    Last Post: 07-04-2009, 12:27 PM
  3. FYI: TDCO - Timing the DS4 Injection Pump
    By gmctd in forum GM 6.5 Diesel Engines
    Replies: 4
    Last Post: 06-26-2009, 02:45 AM
  4. Injection pump timing tool question
    By GM Guy in forum GM 6.5 Diesel Engines
    Replies: 17
    Last Post: 01-21-2009, 07:21 AM
  5. Need injection pump expert for timing problem
    By stickweld in forum GM 6.5 Diesel Engines
    Replies: 28
    Last Post: 07-03-2008, 03:54 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •