azbirdhunter88 Report post Posted December 20, 2015 Does anyone know how to replace injectors on a 24valve? Share this post Link to post Share on other sites
Hoss50 Report post Posted December 20, 2015 search cumminsforum.com They have a great write up on the 3rd gen injectors and I bet they probably have one for the 2nd gen too. I did injectors in my 2005 cummins. It isn't terribly hard if you are mechanically inclined but I was fortunate enough to have my diesel mechanic buddy help me out. The main thing is don't cut corners, keep everything CLEAN, and torque specs are important. I think injectors on the 2nd gen trucks are easier then 3rd gen. I know they are cheaper. Harley 1 Share this post Link to post Share on other sites
azbirdhunter88 Report post Posted December 20, 2015 Ok thank you. Share this post Link to post Share on other sites
Hoss50 Report post Posted December 20, 2015 also adjust your valve lash while you are in there. that will help out a fair amount too. Cumminsforum has come info on replacing injectors and valve lash, but I can't copy and paste them for some reason. They say injectors are a 3/10 job on replacement. Be very careful with the injector tubes and torqueing them and correctly installing the brackets that hold them. Those little brackets are very important. They help keep the injector fuel supply tubes stable. If you don't use them or don't put them back on right you can run the risk of the tubes vibrating and cracking. I believe the #4 tube is also known to crack on its own so search that and possibly replace that tube anyway when you are in there. Share this post Link to post Share on other sites
Hoss50 Report post Posted December 20, 2015 google this. cumminsforum 24v injector replacement On their website the valve lash adjustment article is in the tech article section under 98.5-02 tech articles. Share this post Link to post Share on other sites
ctafoya Report post Posted December 20, 2015 I miss mine. Best engine ever made. Share this post Link to post Share on other sites
azbirdhunter88 Report post Posted December 21, 2015 Hoss if you know how to dive in and do it come get it done and I'll pay you. Name me your price. Share this post Link to post Share on other sites
25-06 Report post Posted December 21, 2015 I miss mine. Best engine ever made.. Twelve valves even better. 1 Share this post Link to post Share on other sites
Presmyk Report post Posted December 21, 2015 Ya I would take a 12 valve again. Went to the 24 valve at 1998.5 and they had some electronic issue but after that think they are all good. Share this post Link to post Share on other sites
Hoss50 Report post Posted December 21, 2015 I did it for myself because I had my buddies help. I would prob do it again if I had too but I wouldnt chance messing up someone elses truck. If you need a shop to do it I can recommend a couple good ones. Are the injectors bad, and has that been verified? Share this post Link to post Share on other sites
Hoss50 Report post Posted December 21, 2015 I loved my 98.5 24v and wish I would have kept it as well as getting my 2005. I should have used it for my beater truck. It was a great truck. Hindsight 20/20. Share this post Link to post Share on other sites
azbirdhunter88 Report post Posted December 21, 2015 I want to go to injectors that offer more horsepower. I need someone to take the old out and put the new in. I'll buy the new ones. Share this post Link to post Share on other sites
Hoss50 Report post Posted December 21, 2015 Do you have a programmer yet? If not start with a Smarty and if you feel froggy stack it with a tst. If you tow and have not upgraded the exhaust and transmission/clutch start there. If you don't have mods yet start here. If you have not done everything before I listed injectors you probably don't need injectors yet unless there is something wrong with them. Gauges (egt and lift pump pressure minimum, boost, trans temp if you have an auto) Exhaust Bhaf air filter Lift pump and 2 micron fuel filter Programmer Trans/clutch upgrades Stack programmers and or turbo Injectors and or turbo Harley Share this post Link to post Share on other sites
Hoss50 Report post Posted December 21, 2015 What do you have so far along with supporting mods, and how much power do you want? Do you tow? Share this post Link to post Share on other sites
yotebuster Report post Posted December 22, 2015 Have you tried jacking it up a few inches higher? Maybe some blacked out All star rims? That seems to be the best bang for your buck when it comes to getting more horsepower. If all else fails try a flatbed and a big a$$ bumper. Share this post Link to post Share on other sites
