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6.5 timing injector pump
Ok this ia for a good buddy he has a amazing looking truck but no luck with engine. Truck when u start it knocks and when u rev it up it smokes bad has new injectors and injector pump. He talked to a diesel guy and he said it sounds like pump either advanced to much or detarted need help.
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can't help if we don't know what year it is?
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Originally Posted by racer55
(Post 1036132)
can't help if we don't know what year it is?
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The electronic timing has to be set with a tech 1,tech II with OBD1 expansion pack or GMTD ScanTech pro version ONLY.
The only way to know what the timing is really,is to do a TDCO relearn with an above mentioned scan tool. I don't know how anyone could determine advanced or retarded timing on their own? Even using another scan tool that will display the stored TDCO value is in no way an accurate way to determine timing since it could very well be an old stored value that has nothing to do with the IP 's physical position. ---AutoMerged DoublePost--- To answer your question more directly,to retard the IP it needs to be loosened and rotated towards the passenger side,tightened and then the TDCO relearn needs to be done with the above mentiones scan tool. Very small rotaion makes big changes eg: 1mm of movement translates to about 2 degrees of timing change. |
Well i need to know how to fix with basic tools im not spending money for a fancy reader and i know my buddy isn't
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Sorry to say that it can't be done with basic tools.
There is no way to set injection timing on a 94/95 electronic IP other than the scan tools mentioned above. If you own a 94/95 6.5 you really should invest in the software/cable that goes with GMTD ScanTech pro version. $160 for GMTD ScanTech $60 for the cable There is a way to make the cable for about $10 also but is a little crude. Since the vendor is not a site sponsor I can't post the link but PM me if you want the info. ---AutoMerged DoublePost--- The ECM has to learn where the IP physically is situated at to control timing and to even report the timing to a scan tool. The problem arises when the IP is moved or replaced-there will be a timing value in the computer that it thinks is correct and no matter where the IP's actual location is in relation to the crank the ECM won't know a change has been made unless it is commanded to relearn the new IP location-ONLY the above mentioned scan tools have the ability to force that relearn on a 94/95 6.5 electronic IP engine. |
What about KOKO procedure to force relearn? I guess you still wouldn't know actual timing without tool
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KOKO is only 96+ OBDII-yours is OBD1.
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new injectors
if your friend just changed injectors and hasn't drove the truck because of the knock, he needs to just drive it and the knock will go right away. i did my 95's and when i started it she knocked and smoked so i shut it off. only a good friends advice who is a diesel guru would i drive the truck with that noise it was making and with in a klm it went right away.
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Well i don't think a computers will tell me wat i want its still mechanical driven and i see a mark on the engine block but not a mark on injector pump
---AutoMerged DoublePost--- Ill post a video tomorrow we will start it |
It is mechanically driven but if it has a PMD,optical sensor on top and timing stepper motor on the passenger side of the IP-it is electronically controlled timing by the ECM.
Easiest way to tell if it is electronic IP is to look for a crankshaft position sensor on the drivers side of the timing cover in line with the crankshaft-right behind the power steering pump. |
Well now my big question wat is the difference in the turbos in the trucks i see gm-4 gm-8 gm-5 turbos wats the difference he told me he changed turbos so i think it has the wrong turbo on it
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A gm3 has a spring wastegate and the 5 and 8 are almost identical.
They all make the same boost and work the same way and are interchangeable. ---AutoMerged DoublePost---
Originally Posted by bigal_700
(Post 1057568)
Well i don't think a computers will tell me wat i want its still mechanical driven and i see a mark on the engine block but not a mark on injector pump
---AutoMerged DoublePost--- Ill post a video tomorrow we will start it If it's a pickup truck you have to set timing with a scan tool or have the dealer do it for you. The only way you could have a fully mechanical IP on a 95 is if it were a military humvee or a school bus or if someone did a DB2 conversion: http://www.mediafire.com/?4wj51rn22o6z6 This page has pictures of both IP's,upper left is mechanical DB2,middle is electronic DS4: http://firstdiesel.com/light_truck.htm |
Yes i do my own work the dumbasses he has had work on it now the turbo has alot of oil going everywhere i think seals bad
---AutoMerged DoublePost--- 6.5 diesel turbo won't start: Try link here us trying to start then starter bolt broke come to find out it was loose [color=grey][size=-2] ---AutoMerged DoublePost--- I don't see any marks on injector pump but where should the peg be? We got watet pump and timing plate off to make sure that gears in the right spot he told me today that he had a guy put head gaskets in that's never worked on a diesel before |
Not sure what you mean by "peg"?
There should be a hash mark on the IP near where the mark on the timing cover/IP mount is-might need some cleaning to get at it. The marks are a rough guide only. From the video I can tell you that you for sure have an electronic IP that needs the scan tool to set timing-also the timing appears to be quite late,try rotating the IP a mm or 2 towards the drivers side. |
The pump was all the way to the drivers side
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The peg on the IP drive flange goes in the slotted hole in the IP drive gear.
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Yea i looked there's only one spot the peg and bolts can go on so so how do i make the cable i need i found the software for $160
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Thanks my problem is spending that money to only use once
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If it's not your truck then the owner should pay-or send the truck to the dealer to get the timing set and again-he pays.
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Yea im going to make the owner pay me back
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Scanner
Originally Posted by racer55
(Post 1036567)
Sorry to say that it can't be done with basic tools.
There is no way to set injection timing on a 94/95 electronic IP other than the scan tools mentioned above. If you own a 94/95 6.5 you really should invest in the software/cable that goes with GMTD ScanTech pro version. $160 for GMTD ScanTech $60 for the cable There is a way to make the cable for about $10 also but is a little crude. Since the vendor is not a site sponsor I can't post the link but PM me if you want the info. ---AutoMerged DoublePost--- The ECM has to learn where the IP physically is situated at to control timing and to even report the timing to a scan tool. The problem arises when the IP is moved or replaced-there will be a timing value in the computer that it thinks is correct and no matter where the IP's actual location is in relation to the crank the ECM won't know a change has been made unless it is commanded to relearn the new IP location-ONLY the above mentioned scan tools have the ability to force that relearn on a 94/95 6.5 electronic IP engine.
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