dtwigg8477 Posted March 27, 2013 Share Posted March 27, 2013 Hi everyone new to this site, been searching the internet for a while with no luck on my issue.Today we put a new set of injectors in out 1993 CH613 do to 2 weak injectors and loss of power. After doing the injectors and putting the truck all back together we fired it up and now we have a dead miss in cylinder 2. We've pulled the injectors back out and switched two of them around with the same outcome, check injector lines for maybe a clog and no clog, checked injector line up to the injector and it seems good, pump flows good amount of fuel. We've spent 4.5 hours trying to figue out what it is with no luck. If anyone has some information or advice it would be greatly appriceated.Thanks, Twigg. Quote Link to comment https://www.bigmacktrucks.com/topic/30559-1993-e7-350-new-injectors-now-dead-miss/ Share on other sites More sharing options...
staxx Posted March 27, 2013 Share Posted March 27, 2013 Maybe delivery valve washers in injection pump , if the injectors were week on that cylinder before replacement and delivery valve pressure is low pressure it might still fire with the week injector now with week delivery valve psi and new injector high pop off psi it doesn't fire. Quote Link to comment https://www.bigmacktrucks.com/topic/30559-1993-e7-350-new-injectors-now-dead-miss/#findComment-174489 Share on other sites More sharing options...
theakerstwo Posted March 27, 2013 Share Posted March 27, 2013 I saw last year a line that had stopped up for some reason.I give him a old line being it was on sunday and it fix his problem.I have a old 673 line and injector that i can connect to the pump and crank over to se if the pump is putting out. You may look at the old injectors and make sure that tghe sealing ashers came out with the old injectors.Two sealing washers on one injector may be a problem Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/30559-1993-e7-350-new-injectors-now-dead-miss/#findComment-174496 Share on other sites More sharing options...
staxx Posted March 27, 2013 Share Posted March 27, 2013 If there is debris in the line it's most likely delivery valve pieces Quote Link to comment https://www.bigmacktrucks.com/topic/30559-1993-e7-350-new-injectors-now-dead-miss/#findComment-174508 Share on other sites More sharing options...
e9500v8 Posted March 27, 2013 Share Posted March 27, 2013 Could be a valve issue maybe hard facing off of a lifter I would check valves on that cylinder. Quote Link to comment https://www.bigmacktrucks.com/topic/30559-1993-e7-350-new-injectors-now-dead-miss/#findComment-174509 Share on other sites More sharing options...
dtwigg8477 Posted March 27, 2013 Author Share Posted March 27, 2013 We went back and readjusted the valves this morning. They were all a little tight but the intake valves on that cylinder were so close it was stuck open a little. This miss is still there were now scared its a bent valve. My question is if we did not change any of the lashes how did that happen and would y'all say its a bent valve also?Thanks Twigg. Quote Link to comment https://www.bigmacktrucks.com/topic/30559-1993-e7-350-new-injectors-now-dead-miss/#findComment-174529 Share on other sites More sharing options...
felicello122 Posted March 28, 2013 Share Posted March 28, 2013 Make sure your cam and lifters are doing their thing on that hole Quote Link to comment https://www.bigmacktrucks.com/topic/30559-1993-e7-350-new-injectors-now-dead-miss/#findComment-174674 Share on other sites More sharing options...
dtwigg8477 Posted March 28, 2013 Author Share Posted March 28, 2013 (edited) Well finally after having enough of the dumb thing we called in another pair of eyes and within a few mintues we found our problem. The pushrod for had not seated back into the lifter and was not opening nor closing the intake valves up. After taking the truck back apart, readjusting the intake valve and all the jake valves the truck fired up and purred prettier than a kitten.Can anyone tell me what the proper lash is for the jake brakes? What I found on the internet said .080. And also what could be done to make the jake's feel stronger? They feel as if there only there for slowing the truck empty and they sound horrible like a weak fart. Edited March 28, 2013 by dtwigg8477 Quote Link to comment https://www.bigmacktrucks.com/topic/30559-1993-e7-350-new-injectors-now-dead-miss/#findComment-174706 Share on other sites More sharing options...
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