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You are watching: Cat c15 injector hold down torque


I have burning gas obtaining into the return fuel on my 550 6NZ. It"s apparent because I have actually smoke in mine fuel tanks as soon as I remove the fuel caps. It also seems to have actually a slight miss out on or turbulent idle, yet otherwise runs good. Therefore I"m walking to begin by pulling the injectors and installing brand-new O-rings. Hopefully the O-rings will resolve it and I won"t have actually an injector chair problem.I"m relatively mechanically inclined and have a good shop to job-related in but I"ve never been into the head or gotten rid of injectors. Is over there anything special I require to recognize or any type of special devices I"ll require to obtain the injectors the end and earlier in again?I"m not nearly as scared of tearing right into things as I probably should be, yet you gotta learn somehow.
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I have burning gas gaining into the return fuel on mine 550 6NZ. It"s evident because I have smoke in mine fuel tanks once I remove the fuel caps. It likewise seems to have a slight miss or stormy idle, however otherwise runs good. So I"m walk to start by pulling the injectors and also installing brand-new O-rings. Hope the O-rings will settle it and also I won"t have actually an injector seat problem.I"m relatively mechanically inclined and have a good shop to work in yet I"ve never ever been into the head or eliminated injectors. Is over there anything unique I need to understand or any type of special devices I"ll require to acquire the injectors out and back in again?I"m not practically as fear of tearing into things together I probably should be, but you gotta learn somehow.
Smoke in the tanks when warm is normal. No really smoke simply fumes i guess. You need the injector height tool to set injectors as soon as you run the overhead. Constantly remove the fuel lines native the front and also rear the the head come let it drain out. Once you traction the injectors, look for a clean "seat" note at the bottom of each one. Burning in the fuel or corroded seat is not as common as thought. I"ve had 15 E and C15"s and never had injector chair issues. I"d to speak you just have a injector acting stupid. Are the inj codes collection all the same? setup all the exact same will cause rough idle, along with other things.
2005 250 super Duty Crew. White and Grey. ARP studs, EGR Delete, and also SCT native Vivian. CCV re-route, and also 4" Magnaflow turbo back.Other trucks:1980 KW Ext hood, 1982 Kenworth Cabover Aerodyne (BJ and also the Bear) 2000 and also 2003 Kenworth W900"s. 2003 Pete EXHD. Every Caterpillar Power. Mine 2003 has an MBN i converted come 6NZ. Beforehand 550 file, 211-3025 squirts. 800 cam. Acert pair via practice mount. ARP head bolts.Transporter and also Operator that a Bauer developed Championship unlimited Tractor Pulling Sled for the united Pullers of the Carolinas, region IV affiliate that the nationwide Tractor Pullers association (NTPA), and damn proud the it!!!!
Reactions:KTF
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I have combustion gas gaining into the return fuel on my 550 6NZ. It"s evident because I have smoke in mine fuel tanks as soon as I eliminate the fuel caps. It additionally seems to have a slight miss out on or turbulent idle, yet otherwise runs good. Therefore I"m walking to begin by pulling the injectors and also installing brand-new O-rings. Hopefully the O-rings will resolve it and I won"t have actually an injector chair problem.I"m fairly mechanically inclined and have a an excellent shop to occupational in yet I"ve never been right into the head or eliminated injectors. Is there anything one-of-a-kind I require to understand or any kind of special devices I"ll require to gain the injectors the end and back in again?I"m not virtually as scared of tearing right into things together I most likely should be, but you gotta learn somehow.
They also say replace injector hold down bolts. Again, I"ve had actually 15....never had actually one break. Torque come 42 lbs. Talk rocker bolts and also nuts to 40 climate 90 levels or 85 lbs, whichever works.
2005 250 supervisor Duty Crew. White and also Grey. ARP studs, EGR Delete, and SCT native Vivian. CCV re-route, and 4" Magnaflow turbo back.Other trucks:1980 KW Ext hood, 1982 Kenworth Cabover Aerodyne (BJ and the Bear) 2000 and 2003 Kenworth W900"s. 2003 Pete EXHD. All Caterpillar Power. My 2003 has actually an MBN ns converted to 6NZ. Early 550 file, 211-3025 squirts. 800 cam. Acert twins via tradition mount. ARP head bolts.Transporter and also Operator the a Bauer constructed Championship countless Tractor Pulling Sled because that the united Pullers of the Carolinas, an ar IV affiliate the the nationwide Tractor Pullers combination (NTPA), and damn proud the it!!!!
Reactions:KTF
Get the ideal of new o/rings top top the injectors wil deal with the trouble out of your mind.If compression is walk by the injector/head joint o/rings will certainly not hold it.But if you traction them and also find traces of black color carbon happen the seal joint then you understand its leaking.Some time you deserve to clean it and yes replace the o/rings and it will avoid leaking.I have actually seen a poor injector placed compression in the fuel yet its missing bad to execute this.
Reactions:KTF
Thanks guys. I initially thought it to be a bad injector yet the much more I researched the more I convinced myself it was compression gaining past among them. However either method I think the finest thing to carry out is traction the injectors and also inspect them.It"s not missing bad in ~ all, simply a slim stutter you can hear in the exhaust and additionally slight vibration in ~ idle, sufficient to shake the mirrors from 600-1000 rpm when idling. Ns don"t recognize what trim password I"m running, yet if I finish up instead of an injector ns will have actually them set them all ago to the password stamped top top the injectors if lock aren"t already.Biggest thing I still can"t figure out with this truck is that i can"t get any fuel mileage. I typically gross 80-85K, but fifty percent my miles space empty miles. 5.7-5.9 MPG is yes, really the best I ever before get.
I"m interested in the outcome you find. Mine started doing this 2 job ago. I figured some negative fuel. It"s no a miss. But rather a secondary kind the roughness much more noticeable at times than others. Ns don"t absence power in ~ all and I can tell they"re all firing.Now that I read this, ns think it can be the same thing.

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put a clear line in the fuel return and also see if there room air bubles going earlier to the tank, if the is compression acquiring in with the injector orings the will get worse as the boost/load go"s increase not likely to be noticed at idel speed. Id would certainly guess the is a air leak top top the suction side of the fuel heat if it operation ruff at a idel and starts difficult after setup over night and go"s away together the RPM"s go up.
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