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skimmer
Joined: 27 May 2011
Posts: 48
Location: Alberta
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 Posted: Tue Jun 30, 2015 10:00 pm Post subject: |
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| pillpusher wrote: | | Last night we performed a fuel pressure check off the vapor separator test valve and gauge showed 45psi (spec is 41-45). Changed the plugs and went for a test ride. Engine pulls 5800 consistently and fuel pressure remained constant throughout. Looks like it was a combination of weak fuel lift pump and spark plugs. |
58 is a bit high, you may wanna look at your impeller , might be losing some performance. |
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pillpusher
Joined: 27 Apr 2013
Posts: 10
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| Posted: Tue Jun 30, 2015 11:14 pm Post subject: |
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| Service manual states full throttle RPM in 5500-6000 range. This is a new impeller put in last fall with approximately 10 hours of use so far this year. |
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skimmer
Joined: 27 May 2011
Posts: 48
Location: Alberta
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| Posted: Wed Jul 01, 2015 7:46 am Post subject: |
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| pillpusher wrote: | | Service manual states full throttle RPM in 5500-6000 range. This is a new impeller put in last fall with approximately 10 hours of use so far this year. |
Ok, maybe the 240 is a bit higher than 200. I stand corrected then. |
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pillpusher
Joined: 27 Apr 2013
Posts: 10
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| Posted: Wed Jul 01, 2015 6:06 pm Post subject: |
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| Was wondering the same thing myself. Must be some variation across all three sportjets? |
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