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Generators In this forum we will try to answer any of your questions about the different model generators that can be found on Blue Bird coach's. |
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#1
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My Yanmar-Kohler 12.5 just got hard to start and now usually won't run for more than a few seconds. In doing a little trouble shooting, I notice that I don't hear the pump run when I hold the switch on the gen panel to Prime. I do hear the relay click. Should I be able to hear the Facet pump running while I hold the Prime switch?
Going to change all the filters on the Gen, the Racor, and the oil to eliminate all those possible issues. But wanted to check on the fuel pump while I'm at it. Thanks for any help!
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Dave Carroll - WB7TPJ Currently: Nampa, ID 1986 PT40 “Flyin' Low” |
#2
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The Yanmar has an electric fuel pump down by the oil filter. If that pump doesn't work the engine will not run. I looked up the direct replacement pump from Yanmar and it is available but expensive for what it does. I ended up replacing it with a small Edelbrock pump made for diesel service. I just needed a couple of fittings and fabricated a bracket to mount it. The generator has been running great since the change.
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Kevin Ridley 1979 FC35 XV (Sold!) 1986 PT40 Amazing Grace (Full Timing It) Follow our travels at: ampersandgemandjewelry |
#3
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Change all the filters first. Mine was doing that on our last trip back home. My air filter was the trouble only had a few hundred hours on it. But any that was my issue. all is good with it as of now. Will be using it again this coming up weekend
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![]() ![]() Louisville,Ky 1980 BlueBird FC35RB (sold) 1986 PT40 1984 Ford GT Turbo Mustang FMCA # F468571 |
#4
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Chap and Darra Enfinger Newton, GA 1982 FC33 (sold) 1986 PT40 8v92 "Sturdy Birdy" http://www.bbirdmaps.com/user1.cfm?user=352 ce@pinelandplantation.com |
#5
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Well, I thought I was hearing a relay. Today the prime switch resulted in nothing but silence. I did replace the air filter. Tried opening the bleed screw a little to see if prime was working, but got no pressure (or noise). I already have the secondary filter. Waiting on the Racor filter from NAPA on Tuesday before I change the fuel filters.
However, I was able to get the genset to run for quite a while today. Based on no prime, but a running gen, I am wondering if it might be the 1CR relay in the gen control box. Based not he contact numbering, is that a Bosch relay like so many other things in the WL? If so, are they mounted in sockets for easy plug-n-play? If it is the relay, how difficult is it to get inside there with the gen in the bus? In mid-May were going to be temp-fulltime and moving to Idaho. Trying to knock out as many mechanical issues that we can before then. This will be a major one to resolve!
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Dave Carroll - WB7TPJ Currently: Nampa, ID 1986 PT40 “Flyin' Low” |
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