12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

Delivery Valve Questions

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  #11  
Old 04-12-2008, 07:07 PM
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Originally Posted by 94cummins12v
are the fully cut ones the 191's
The 191s will be between the 181's and the 022's.
 
  #12  
Old 04-20-2008, 10:58 AM
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Ok well the valves he had wound up being full cut 181's, upon further inspection so yesterday I got my timing advanced to around 22-24 degrees, that made a huge difference, then put the DV's in, HOLY COW HANG ON!!!! bout crapped my pants!!! i think my sock strainer in the tank is plugged up though or something, gotta drop tank and pull that thing offa there, my P7100 is running out of fuel now!!

OH AND THE HOODSTACK BLOWS A FLAME!!!!!!!!!!!!!!!!! at round 3k rpm and 8-900 degrees EGT.... Its wild!!!

I love these DV's!!!
 
  #13  
Old 04-20-2008, 01:03 PM
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22 -24 degrees??


What are you using for a head gasket?
 
  #14  
Old 04-20-2008, 10:47 PM
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stock gasket and studs at this point. thats next on the list along with 60# valve springs... and, possibly a FASS / Airdog type system.... unless 99% of my problem i'm having right now is just a clogged sock screen in the tank... we'll find out tomorrow night after i yank it out... see, at the same time as the timing was done yesterday, i had 1/4 tank of pump diesel and filled up the rest of the way on SVO, which i got from a guy who has made his own homemade SVO for 2 or 3 years now and ran it in his 12v's successfully. He said it will clean my tank and the crap will probably clog my filters. His dad was the previous owner of my truck, and owns a repair shop here they do a lot of work on Cummins engines there. They know their stuff pretty well for a general auto repair shop. Anyway, They had ran SVO in my truck before (when it was stock) and basically had no problems but did notice a small issue running it less than 1/4-1/2 tank it ran low on pressure. He thought the strainer in the tank could be partially clogged possibly. We'll find out tomorrow after work. Will post my findings.
 
  #15  
Old 04-20-2008, 10:53 PM
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pic of flame please.....
 
  #16  
Old 04-20-2008, 11:32 PM
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Originally Posted by Benjamin
pic of flame please.....
What he said....
 
  #17  
Old 04-20-2008, 11:38 PM
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and roasting a marshmellow would be super cool..... or am i pushing my luck.....
 
  #18  
Old 04-22-2008, 01:39 AM
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Thats pushing your luck ... its probably going to be a video of the flame and your gonna hafta wait cuz i'm gettin ready to leave for work and as soon as i get home from work i'm gonna yank the bed off and dig into the fuel tank to pull the sock strainer on the sending unit/draw straw cuz i think its plugged up and causing my problems right now. So, check back in in a couple of days. Thanks!
Eric

---AutoMerged DoublePost---

Ok so spent all night workin on the truck its 2:30 am i just got showered up and ready to go to bed... Took bed off, pulled sending unit, the strainer is a bit filthy. Took it off, put everything back together after cleaning the sending unit up. Changed the canister filter & cleaned the strainer bowl on the lift pump, fired it up, almost worse still than it was!!! I'm starting to get a bit upset at this point, start double checking there are no fuel leaks, and no air in the lines anywhere. Everything checks out good, got no probable cause for the problem. Can't be timing. Can't be the DV's. Can't be the veggy oil. Or can it? So with no other ideas left, i pumped as much as i could out of the tank (after running 90 miles on veggy oil) Then went to town and got diesel in cans, came back and put 10 gallons in it (the rest of my cans were full of SVO at this point LOL) and dumped in a healthy dose of Diesel Kleene + Cetane Boost. Fired 'er up and it idled alot better, let er warm up and took it for a spin, got 'er fueled and lit the turbo, she runs sweet! So apparently my truck isn't a vegetarian, but the good news is she's good to go and if i can scrape up the extra money, I'll put her on the dyno at TS and hope to spin close to 500 RWHP!!!!
 

Last edited by BigBlue12V; 04-22-2008 at 01:39 AM. Reason: Automerged Doublepost
  #19  
Old 04-23-2008, 02:23 AM
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4mpg?!
 
  #20  
Old 04-24-2008, 08:52 PM
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Nah.... more like 13-15 in town depending on my driving... 16-17 highway driving moderate (15-16 rough driving, 17-18 going EASY on it, which is still like normal driving for most vehicles haha) We may just get a video this weekend of the beloved flame stack!
 
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