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millhaus's Avatar
 
Join Date: May 2005
Location: Detroit
Posts: 68
Garage
Cold start issue?

Just rebuilt my 1980 930 engine and it runs GREAT! I timed it at 29 BTDC @ 4000rpm and adjusted the AFR from 11 to 14 at warm idle and runs smoooooooth.

Shut it off and went back to it a couple hours later and wouldn't start. Seems like no fuel since spark was good. Is this a typical WUR issue or something else with a new rebuild?

WUR worked fine before the rebuild so I am a bit surprised if it doesn't work now.

Could it be something else that I overlooked?

Any thoughts?

Thanks

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Millhaus
Old 11-11-2010, 03:35 PM
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Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,467
If you have the cold start plugged in correctly so the fuel pump isnt running when you turn the key on then you have to look at the check valve or make sure your return line and accumulator is tight so that your pressure isnt bleeding off.
Pressure testing of the WUR is a standard check item.
Bruce

Old 11-11-2010, 05:28 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
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