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603 Engines
Will they start from cold with no glow plugs? Inquiring minds want to know. Hatterasguy says his will. When's the test?:)
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Exactly. Where's that test he promised..............????
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Mine sure wouldn't start w/o GP's. After a new relay and 6 new plugs she fired up beautifully.
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on a nice day mine will start after cranking a bit longer without glowing. 237k on it now too.
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Any diesel will start without glow plugs, it just takes muuuuch longer. When I first bought my old 300SD, all the glow plugs were shot, and it would take a couple of minutes of solid cranking before it would fire up (the starters on these cars must be EXTRA heavy duty!).
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An 80's vintage Yanmar 220D tractor I had would start w/out glow plugs. The glow cycle was for winter starting according to the owners manual. It also had a manual compression release so you could spin the engine faster during cold starting.
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Define "cold."
I could just barely start mine in ~45F weather when the glow plug fuse went south for the winter. Maybe six rounds of cranking the engine for 30 seconds each. Very impressive smoke cloud. - JimY |
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Its in the garage! I'll give it a go tomarrow morning.
I know the 617 will start pretty darn cold, mine only refused when it got to the high 30's with 4 dead glow plugs. |
There I went and yanked the strip fuse, now I'm commited.:D
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Mine would start with two good plugs... for what its worth.
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Mine wouldnt start in 56F weather, unless driven for about an hour or 2
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Last summer, mine began to start harder than its normal instant start so I took it to the shop. They told me I had 6 bad plugs. So apparently mine will start with no plug help. In 70* weather.
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I wonder if it would be possible to implement an air intake heater like some off road diesels use, also do the new mbs have gp's at all or do they use computer control like the newer cummins heavy dutys, cats, or detroits.
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About 58 degrees this morning and no go. I gave her a couple long cranks and she didn't have any signs of life. I didn't want to kill the battery so I hooked the strip fuse back up. Lots of unburned fuel in the system! Fired right up with an RPM spike and lots of smoke.
So I guess the 603 will simply not start cold like a 617 will. Interesting bet it has to do with the head design. |
Verdict is in?
Aha! Perhaps we now have proof/evidence that the 603's will not start without GP's. Now I don't feel so inadequate because mine wouldn't start without them.
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Why wouldn't the engine be able to start? If it has fuel and the valves are closing and the compression is good then shouldn't it start after some cranking?
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Even with a short glow these motors dont start up always or idle well. The aluminum sucks up the heat I'd venture to guess. |
Yeah its strange. My tired 617 will start without glow plugs. Strange must be part of the 603's design.
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They dont' have glowplugs. The Cummins uses a heating grid/element. |
I wonder why Dodge can start with no plugs but the Powerjokes (They have the same compression ratio as the Cummins) can't start cold without plugs.
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Last winter, a friend of mine started the diesel engine in his boat with the help of a burning piece of paper in front of the air intake, and it started. I will try a hair blower this winter, maybe that works too. Any thoughts? |
hahaha I've actually used a hairdryer to get a 617 to start before... :eek:
Had an 82 300D I took home in the winter and was about to drive to work the next morning and it did not want to start. I knew it had some dead plugs so I had left the blockl heater plugged in overnight. Well, so then I learned the block heater element was burned out. Strapped up a hairdryer directly over the opening in the filter housing and let it run a few minutes then fired it up. On another occasion I've used a torpedo heater infront of the radiator to heat one up enough to start (but only when the hairdryer won't work :D ) |
My SD started right up this morning at 32 deg WITHOUT glowplugs. Took about 4-5 seconds of cranking.
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Powerstroke Diesels, the 7.3L T444E and 6.0L VT365E are designed by International. the Cummins Design has been the toaster oven element design for a while. Which is great for roasting marshmellows when camping! :eek: |
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On a side note, I find it's much easier on both myself and the engine to just keep the glow plugs operational. :confused: |
Yeah I don't lnow why anyone would not check to make sure they are working, and fix them if they were not. There is no reason not to use them.
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603 glow plug light does not come on
Well it happened. My glow plug light no longer comes on as of today. It is supposed to hit 35F tonight and I am 500 miles from home. I parked it while nice and warm, put a folded army blanket over the engine, attached a 200 watt magnetic heater to the oil pan, and ran a 100 foot extension cord from my hotel room to the car. We'll see how it goes in the morning.
I have a 1500 watt coolant heater at home that I just have not found the time to install. I also didn't make time to check over my glow plug system. Now I may end up paying for it. I'm going to go hit the search function now. Any other suggestions? -Jim |
Plug in the block heater.
I'd check the strip fuse, if that broke you could always jump it with a bit of wire to just get the car started. Carefull though you don't want to fry anything. |
I don't think mine came with a block heater.
The strip fuse is blown. I can't find my spare. I jumpered it with some wire. It did not help. Something else is wrong and the strip fuse did what it is supposed to do.
What block heater are you talking about? My car does not have heated seats and I cannot find a plug behind the grill. I think it does not have the cold weather package. I'm running it right now to get it nice and hot before I shut it down and throw a blanket over it. I'll see if I can get it started again at 6am. If I wake up in the night I'll run it some then. I've got to get up at 6am to check out. I'll run it some then. I'll shut it down a little before 8am. I can run it again at noon. Then I should be done by 4-5pm. As long as it will start in the morning I will be ok. -Jim |
I believe all 603 engines came over with a block heater installed. They did not however furnish a cord with them, so you needed to carry it back to a dealer and if you a coupon out of the service book they would "install" the block heater by screwing on the cord, free of charge.
Here's a pic of one off the engine. It should be covered by a round black plastic cover, and location is the L side of the engine just near the block drain valve, and its sorta hard to find from the top with all the stuff behind the turbo hiding it, so look from beneath on the passenger side of the block and see if it isn't already on there. Notice the cord plugs on with a round metal screw and the red rubber bends over at 90 degrees off the axis, that is the right one for the 603's. http://www.peachparts.com/shopforum/attachment.php?attachmentid=34680&d=1152940775 |
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it is a kit so it comes with the plug:) |
Thanks,
I've been reading for the last half hour. Lots of your posts from last year. Pretty much says the same thing. I'll do it when I get home late Friday night or Saturday. Long drive. -Jim |
The 603 will start at reasonable ambient temps without glow plugs. I know because my strip fuse blew and I was reluctant to just jump the fuse without finding the cause but I needed the car soooo, 2 minutes of cranking (with a minute between to cool the starter) later it sputtered to life and spewed a cloud of smoke. They don't like it but they will start, at least at 60+ degrees F.
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Your block heater is there you just need to buy the cord. Fastlane sells them but I find the aftermarket cords to be of poor quality. Ask them for an OE cord, costs a bit more but made far better.
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