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Diesel startup

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phil Botie

05-11-2001 13:30:46




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I have a International UD-282 diesel with a roosamaster pump. The engine starts fine with the glow plugs. But if I let it sit for 10-15 minutes after warm a nostart condition exsists unless I glowit or ether it. If I try to restart within 2-3 minutes no problem. Any clues ? I have a check valve on the supply side but nothing on the return.




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Red Man

05-13-2001 10:30:04




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 Re: diesel startup in reply to phil Botie, 05-11-2001 13:30:46  
These engines require glow plugs every time they are started, unless shut off and started right back up. We had an IH 656 Diesel for years and I have a 460 Diesel with the 236 engine which is set up the same. Do not use ether on these engines especially with the glow plugs!!!!



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Phil Botie

05-13-2001 14:30:53




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 Re: Re: diesel startup in reply to Red Man, 05-13-2001 10:30:04  
Hey Thanks for your reply, I was ready to start checking drain down from the bypass section of the pump. Got any idea why they function this way ? I'd assume all deisels are similar in function and some fuel and compression should fire - or are these lower compression arrangements that need the boost ? Thanks Again!



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dave

05-13-2001 17:03:58




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 Re: Re: Re: diesel startup in reply to Phil Botie, 05-13-2001 14:30:53  
The ease of starting depends on the engine compression ratio, cranking speed, and the fuel injection pressure. The newer diesels (like the Cummins B-5.9) have a high injection pressure, and will start unassited down to well below freezing temps, but the older diesels need the glow plugs and starting aids more. For example, the old Detroits that I have run were famous for being hard to start below about 50 degrees unless assisted somehow. My Perkins needs help (thermostart) below about 40 degrees, but I never use ether on anything I care about.

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Larry

05-11-2001 16:47:30




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 Re: diesel startup in reply to phil Botie, 05-11-2001 13:30:46  
This should be on the Farmall board.I do have one allso.Mine does not do this unless you wait a long time.



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