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#1
06-05-2008, 10:11 PM
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Slow Start '94 c280
It seems like I have to crank the 280 a bit to get it to start after it has been sitting. Like first start in the morning or after sitting for an hour or so. I have done some searches but can not find a difinitive reason. It almost sounds like a cam shaft positioning sensor but I am not sure. Anyone else fixed this? What was it and what do I need to do? Thanks for the help.
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If it ain't broke take it apart and find out why.  1983 300SD, 4 speed 1994 C280 1987 300TD wagon 1996 HD Road King Ride in Peace Eric Peterson, Harley of Macon 
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#2
06-05-2008, 11:05 PM
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Do a search on OVP and then take yours out and see if it has been changed to the modified version part#...
The original OVP is 000-540-52-45.. If it is , change it to the new part # 000-540-67-45, regardless...........
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A Dalton
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#3
06-06-2008, 11:12 PM
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Thanks for the reply. Checked the OVP - it is the new updated one. Pulled the 15amp fuse and cleaned off the terminals. Still a slow start. What should I check next, or what are the next couple of things to check? Thanks for the help.
__________________
If it ain't broke take it apart and find out why. 1983 300SD, 4 speed 1994 C280 1987 300TD wagon 1996 HD Road King Ride in Peace Eric Peterson, Harley of Macon
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#4
06-06-2008, 11:15 PM
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You have to do a fuel pressure test...it is supposed to hold pressure after it is turn off...fuel test port is on the fuel rail.
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A Dalton
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#5
06-06-2008, 11:18 PM
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Can I use a mighty vac for that? What should the readings be? Thanks.
__________________
If it ain't broke take it apart and find out why. 1983 300SD, 4 speed 1994 C280 1987 300TD wagon 1996 HD Road King Ride in Peace Eric Peterson, Harley of Macon
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#6
06-06-2008, 11:56 PM
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No
You need a fuel pressure gauge. Try this instead. In the morning , or after a sit...turn the key to the run position for 10 secs before starter engagemant and see if that is better..if yes, then you have a possible fuel flow or check valve problem
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A Dalton
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#7
06-07-2008, 08:52 AM
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I will try that this morning before I head out, glad I checked the board before leaving.
__________________
If it ain't broke take it apart and find out why. 1983 300SD, 4 speed 1994 C280 1987 300TD wagon 1996 HD Road King Ride in Peace Eric Peterson, Harley of Macon
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#8
06-07-2008, 05:42 PM
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Well it seemed as though it did start fasterthan usual. I have noticed that if I give it some fuel while cranking it will start faster. Where is the check valve located? I would like to rule out the small things first. Also where is a good place to purchase a fuel pressure gauge? Thanks.
__________________
If it ain't broke take it apart and find out why. 1983 300SD, 4 speed 1994 C280 1987 300TD wagon 1996 HD Road King Ride in Peace Eric Peterson, Harley of Macon
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#10
06-21-2008, 07:04 PM
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Changed the fuel filter, so far so good. Started up right away. Let it sit awhile and she fired right up. I'll see what happens in the morning.
__________________
If it ain't broke take it apart and find out why. 1983 300SD, 4 speed 1994 C280 1987 300TD wagon 1996 HD Road King Ride in Peace Eric Peterson, Harley of Macon
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