Roosa inlet pressure...
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URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=47218
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Topic: Roosa inlet pressure...
Posted By: Wes (VA)
Subject: Roosa inlet pressure...
Date Posted: 13 Mar 2012 at 9:43pm
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If they've got too much inlet pressure from an electric pump..what will that do to the inj. timing? on a 7080 that didn't come out with electric pump. thanks, -Wes
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Replies:
Posted By: MACK
Date Posted: 13 Mar 2012 at 10:17pm
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It will advance timing at cranking speed and make it harder to start. Could make it knock at idle. Advance screw can be adjusted for the pressure. MACK
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Posted By: injpumpEd
Date Posted: 14 Mar 2012 at 6:32am
what pump are you running, & how much pressure is it rated at?
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210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
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Posted By: Wes (VA)
Date Posted: 14 Mar 2012 at 8:10am
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Ed, its got a carter pump of somekind..didn't think to try and put a gauge after and see what its puttin' out. I'll see if I can do that today and see what I've got. Mack, it sounds like I may be on to somethin' here then.
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Posted By: Wes (VA)
Date Posted: 14 Mar 2012 at 12:19pm
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I'm gettin' 4.5-5 psi off the electric pump.. seems like I saw somewhere thats ok pressure..right?
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Posted By: injpumpEd
Date Posted: 14 Mar 2012 at 2:39pm
that won't hurt a thing. When calibrating roosa pumps we typically supply pump with 3-5 psi from test stand, per Stanadyne specs.
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210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
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Posted By: Wes (VA)
Date Posted: 14 Mar 2012 at 4:28pm
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Ok thanks, guess I'll keep checkin'..I haven't run new lines from the tank (to try and eliminate air)..they look like they've been on there a while. Though someone has put a hose from the block type filter to the inj pump, and it has a loop that runs about 4" above the fuel filter level, then back down to the inj. pump. im wondering if air isn't gettin' trapped in the top of that loop, but with the electric pump..it ought to push it through. Probably just need to pull the pump and send it off.
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Posted By: injpumpEd
Date Posted: 14 Mar 2012 at 4:33pm
I guess I missed what your problem / complaint is? Need more history about what the symptoms are.
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210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
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