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Top Speed 10 mph
#21
Update:
Even though the fuel line looked ok we decided to replace it. It is now new from the tank to the primary filter. While we were in there he replaced the two short power steering lines that are near the engine. I brought it home last night. This has been a long but educational (for me) process but it runs great!!
1993 Newell 45' 8V92,towing an Imperial open trailer. FMCA#232958 '67 Airstream Overlander 27' '67GTO,'76TransAm,'52Chevy panel, 2000 Corvette "Lingenfelter"modified, '13 Grand Cherokee.
#22
dean, i'm glad you got it going after all this hassle.

tom
2002 45'8" Newell Coach 608  Series 60 DDEC4/Allison World 6 Speed HD4000MH

#23
   

One thing I learned...A fuel pressure gauge is a valuable addition. This would have saved a lot of time and $$$ in trouble shooting.
1993 Newell 45' 8V92,towing an Imperial open trailer. FMCA#232958 '67 Airstream Overlander 27' '67GTO,'76TransAm,'52Chevy panel, 2000 Corvette "Lingenfelter"modified, '13 Grand Cherokee.
#24
We decided to take the grand kids to Corbin, KY. Do some zip lines and kayaking . Friday we had everything loaded and pulled out of the drive way and accelerated to.........7 mph !!!! Dejavue all over again!! It limped along for a quarter mile , I was planning to turn onto a county road to troubleshoot. All the sudden it took off and has ran great for the rest of the trip. I’m thinking there was an air bubble in the fuel line that made it to the engine mounted fuel pump as I got to the end of mi driveway. It is a slight decline and I stopped for a couple minutes to wait on traffic. I pulled off to a safe spot a couple miles up the road to.check my engine mounted fuel pressure gauge, ran it at 2500 rpm for 30 seconds and all was good!
1993 Newell 45' 8V92,towing an Imperial open trailer. FMCA#232958 '67 Airstream Overlander 27' '67GTO,'76TransAm,'52Chevy panel, 2000 Corvette "Lingenfelter"modified, '13 Grand Cherokee.
#25
Dean,  I have serviced hundreds of DD over the years and the fuel system can be very problematic.  The lift pump has limited ability to suck fuel if air gets trapped in the gears and surrounding cavities.  For that reason, we never removed both filters at the same time.  For those not familiar, the primary is on the suction side whereas the secondary is on the pressure side.  We would remove/replace the primary, start the engine to remove any trapped air caused by the filter changing, and let in run for a minute or two before changing the secondary.

Since you replaced such a long section of the plumbing, it is highly likely some air remained.  The pressure gauge is a great diagnostic tool.  The pumps work well as long as they are flooded with fuel, tHe suction side gives the most problems.  Detroit pumps act differently than other gear pumps for some reason.  Cummins PT gear pumps would lift fuel several feet with just a drop or two of fuel.   Series 60 pumps work well also but here again, the filter is on the suction side and air is your enemy.

I know you likely already know all this rambling so, I hope it helps someone else.  

BTW, nice paint job. ?
Gordon Jones
2000-45'-2slide-#567
#26
Thank you Gordon. Replacing filters one at a time is great advice . I decided to top off the fuel tank once it reached 1/2 on the way since we were headed to a KOA in KY and it would probably have steep driveways!!
I never consider your comments as “rambling” !!! I appreciate learning how these things work!! I’m sure other Newell Gurus do as well.
1993 Newell 45' 8V92,towing an Imperial open trailer. FMCA#232958 '67 Airstream Overlander 27' '67GTO,'76TransAm,'52Chevy panel, 2000 Corvette "Lingenfelter"modified, '13 Grand Cherokee.


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