Starting it??

gettembuilt · 02-17-2009, 11:58 AM

-- im not familiar with diesel engines at all .. MY batteries on my 7.3 are i guess very week if the batteries dont have a good charge they are not going to start the motor will they due to the high compression?

leolkfrm · 02-17-2009, 12:40 PM

All engines need good batteries to start. teh diesel has glow plugs and air warmers that draw power so the batteries have extra duty. make sure you change both, not just one

merlin5577 · 02-17-2009, 09:32 PM

leolkfrm pretty much covered it. All engines require a power source to crank the starter over, giving them the ability to start. Yes, diesels need more power to start, partly becase of the high compression, but also because of other factors like leolkfrom stated. If the batteries are old, change them. Otherwise you are only delaying the inevitable by charging them. Good luck.

gmctrucks · 02-17-2009, 11:08 PM

Stumpuller will let you know he knows a lot about diesel engines.

merlin5577 · 02-17-2009, 11:10 PM

Quote:

Originally Posted by gmctrucks

merlin will let you know he knows a lot about diesel engines.

Fixed it for you!

tjzz4 · 02-19-2009, 07:59 AM

The 7.3 turbo diesel needs minimum 100 rpm during cranking to achieve enough injection control pressure to open the injectors.

02-17-2009, 11:58 AM	#1
gettembuilt Full Member Join Date: Dec 2008 Posts: 15	Starting it?? -- im not familiar with diesel engines at all .. MY batteries on my 7.3 are i guess very week if the batteries dont have a good charge they are not going to start the motor will they due to the high compression? Last edited by gettembuilt; 02-17-2009 at 11:59 AM. Reason: error

02-17-2009, 12:40 PM	#2
leolkfrm Senior Member Join Date: Mar 2008 Location: N.Y. Posts: 4,300	All engines need good batteries to start. teh diesel has glow plugs and air warmers that draw power so the batteries have extra duty. make sure you change both, not just one __________________ 4 wheels move the body 2 wheels move the soul B.W.A.I

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02-17-2009, 09:32 PM	#3
merlin5577 Banned Join Date: Nov 2008 Posts: 675	leolkfrm pretty much covered it. All engines require a power source to crank the starter over, giving them the ability to start. Yes, diesels need more power to start, partly becase of the high compression, but also because of other factors like leolkfrom stated. If the batteries are old, change them. Otherwise you are only delaying the inevitable by charging them. Good luck.

02-17-2009, 11:08 PM	#4
gmctrucks Senior Member Join Date: Nov 2006 Location: Houston,Texas Posts: 4,035	Stumpuller will let you know he knows a lot about diesel engines.

02-19-2009, 07:59 AM	#6
tjzz4 Senior Member Join Date: Oct 2007 Posts: 277	The 7.3 turbo diesel needs minimum 100 rpm during cranking to achieve enough injection control pressure to open the injectors.