vanwill52

Not directly pertaining to your questions about fittings, but an increasingly popular fuel system modification is to bypass (or simply disable) the Cummins lift pump and install a FASS or Bully Dog pump/filter system in the location of the existing primary filter. The greatest value of this mod is to those of us with older CAPS injection pumps (1999 - 2004) used on ISC and ISL engines. The CAPS pumps have a history of failures that are frequently due to fuel starvation and/or air ingestion. The CAPS pump has its own gear-type internal fuel supply pump and its spec is to tolerate negative 5PSI on the delivery line from the filters. This makes it susceptible to air infiltration and fuel starvation. Providing positive pressure to the fuel inlet of the CAPS pump precludes that. The FASS pump runs continuously, pumps at a rate in excess of 85 gallons per minute and returns excess fuel to the tank through a dedicated return hose, so it is continuously filtering and recirculating the fuel. And, of course, it provides PRIMING capability so that if you chose to, you could install the filters dry. The Titanium series includes two filters fastened to its body. The primary one is for air separation, with the air, if any, being returned to the tank. If the FASS pump fails, the internal supply pump of the CAPS pump will still draw fuel through the FASS system. FASS is an acronym for Fuel-Air Separation System. FASS system is approximately $700 and is a thoughtfully engineered, high quality system entirely made in USA. You might consider it as an alternative to the Racor. I installed a Racor system on my previous1993 Dynasty. I installed this FASS Titanium system on my 1999 vintage ISC-350 (2000 Dynasty) along with a fuel pressure gage that reads fuel pressure at the CAPS pump inlet, and an EGT gage. My installation was in anticipation of adding an Ag Solutions "chip" to modestly increase power. The EGT gage alerted me to the fact that I needed to reduce EGT before adding any additional fuel. I modified my wastegate to raise boost from 24 PSI to 30 PSI. (Boost Fooler would have done the same thing for $15 and half-hour work.) That dropped EGT well over 100*F from a max of 1340*F under "torturing" conditions. Under modest load (10-12 PSI boost) and steady 62 MPH, the EGT is less than 1100*F. I have several thousand miles on the modifications, am satisfied with EGT reduction and will install the Ag Solutions "chip" shortly. NAYSAYERS, CURMUDGEONS, AND PAP'S (Pontificating Apocalypse Predictors) -- Please remain seated with your lips sealed and hands off the keyboard. I'm not suggesting you do ANYTHING I have done, but if you have the technical knowledge and mechanical expertise you will be pleased with the result. I don't post things I've read on the Internet. I post about things I have personal experience with.

Watts link will work MUCH better. Silver Bullet for wandering Roadmaster chassis. Monacowatts.com

There will always be a small number of folks on EVERY forum that are known for their negativity...or for being curmudgeons or "hall monitors" on virtually every subject. Luckily, most readers learn to recognize them quickly and dismiss or skip their posts. Scotty, you have given our group a great new site when it looked like we were running out of time and options. And you did it in record time! 99% of us applaud your efforts and thank you for the time you have dedicated to serving us all. Might I suggest that the 1% who preferred the old Yahoo site simply stop posting...or start another site you might like better? Your criticisms are petty and shared by few. And how many of you COULD have, or perhaps more importantly WOULD have, done for us what Scotty has? It was a HUGE undertaking. Be appreciative that we still have a site where most of the ACTIVE members still visit and contribute, and all our valuable files have been saved. THANK YOU, SCOTTY!

Mikey's fix was more permanent than mine. If you remove the scissor linkage and position the rivet over a sturdy steel surface, you can whack it a couple of times with a hammer, and it tightens it up like new. I've had to do that every couple of years for the last seven years. Costs nothing but an hour's work. Perhaps someone has had a problem more serious than mine, but this has worked on both my Dynasty's. Van Williams 2000 Dynasty 36, 195,000 miles

Good luck, Chris. You know you are welcome to hook-up at my house anytime. And there is a regional airport large enough for corporate jets just a few miles from my house. Van