pepsi71ocean Posted November 7, 2013 Share Posted November 7, 2013 So i finally got a hold of someone who was able to find me compression tools, and ordered them from snapon online.So they should arrive tomorrow, and im hoping to god that everything checks out good.:banghead: Link to comment Share on other sites More sharing options...
Board Of Directors IBMobile Posted November 8, 2013 Board Of Directors Share Posted November 8, 2013 What kind of compression tools are you talking about, engine compression gauge? Link to comment Share on other sites More sharing options...
Administrator Mopar1973Man Posted November 8, 2013 Administrator Share Posted November 8, 2013 What kind of compression tools are you talking about, engine compression gauge? Yes. Like this... http://articles.mopar1973man.com/general-cummins/34-engine-system/144-compression-testing Link to comment Share on other sites More sharing options...
Board Of Directors IBMobile Posted November 8, 2013 Board Of Directors Share Posted November 8, 2013 OOOh that's nice, but not cheap. It pays to have the right tool and it be reliable. Link to comment Share on other sites More sharing options...
Moderator Wild and Free Posted November 8, 2013 Moderator Share Posted November 8, 2013 Its not too hard to find old injector bodies and it is easy to make one from there, nothing invested but a gauge and a little time to build it.:thanks:Having worked at many diesel shops over the years I don't think I have ever seen or used a commercially made compression tester, every place had home made ones from old injectors for every brand and type of engine. Link to comment Share on other sites More sharing options...
pepsi71ocean Posted November 11, 2013 Author Share Posted November 11, 2013 now that my compression test is done i am unsure what to do, keep it or flip it? Link to comment Share on other sites More sharing options...
Moderator Wild and Free Posted November 12, 2013 Moderator Share Posted November 12, 2013 now that my compression test is done i am unsure what to do, keep it or flip it? The tool or your pickup? Link to comment Share on other sites More sharing options...
Administrator Mopar1973Man Posted November 13, 2013 Administrator Share Posted November 13, 2013 I think the tool.. Link to comment Share on other sites More sharing options...
JOHNFAK Posted November 13, 2013 Share Posted November 13, 2013 To heck with the tool What were the results ? Link to comment Share on other sites More sharing options...
Administrator Mopar1973Man Posted November 13, 2013 Administrator Share Posted November 13, 2013 Roughly 400-450 PSI across the board. Pepsi has been trying to pin down a smoke and knock problem. Link to comment Share on other sites More sharing options...
JOHNFAK Posted November 13, 2013 Share Posted November 13, 2013 Roughly 400-450 PSI across the board. Pepsi has been trying to pin down a smoke and knock problem. well that doesn't sound good if compression is ok ........ bearing/rod ? Link to comment Share on other sites More sharing options...
Administrator Mopar1973Man Posted November 13, 2013 Administrator Share Posted November 13, 2013 I'm going to get him to rule out the injectors next before pulling the engine open. well that doesn't sound good if compression is ok ........ bearing/rod ? Bearing/rod doesn't create white smoke issues from the exhaust. That's what got me stumped is the smoke is combined with the knock. Link to comment Share on other sites More sharing options...
hex0rz Posted November 13, 2013 Share Posted November 13, 2013 I'm going to get him to rule out the injectors next before pulling the engine open. Bearing/rod doesn't create white smoke issues from the exhaust. That's what got me stumped is the smoke is combined with the knock. Bad computer vp44? Causing improper injection timing? Link to comment Share on other sites More sharing options...
pepsi71ocean Posted November 14, 2013 Author Share Posted November 14, 2013 When the truck first starts up, the way it is parked the back is facing into the sun i have a good visible blue smoke, and then it goes from blue to white(ish) to nothing, but the noise i hear is not evident on any other 2nd gen truck i have driven in. It is not as bad as my buddy who had a bad hp line, (complete dead cylinder), but at the same time mine sounds like a banging of quarters together when it is running. thus far, i have been through 2 vp-44's and 3 sets of injectors.Now here is the f-ed up part. As per mike i decided to clean my cross over tubes, and lines, because i did agree and i don't think mike knew how bad they really were. well anyways this blue smoke and the sever timing knock (which got worse) didn't happen till after i cleaned them. Now all but 1 injector line is snug, line to cylinder 4, seem to be buried into the head, like literally it is about flush with the head, unlike the rest of my nuts which have 3-5 threads on them. So with a good compression check, and sanding down my lines and tubes created a worse knock, so im hoping that it is either a bad line (or lines), or cross over tubes.If you wanted to say that when i listen to the truck it (the engine), lacks a hollow sound, and instead sounds out of sync. A poor mans compression test by pulling the FCPM relay provided next to nothing for evidence, but i suspected i heard some pinging, but still im not sure what i hear since this noise does come and go with temperature at times (before i parked the truck). this however becomes very noticeable above 15lbs of boost when towing.I currently am going to pick up some lines from a guy up north to swap onto my truck in hopes that this will solve or at least point me in a direction.EDIT: i forgot to mention that during my compression test my vp-44 kept spitting diesel fuel out, almost a gallon total by the time i was done with all 3 tests. Link to comment Share on other sites More sharing options...
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