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Tractor Talk Discussion Forum

WD 40 as starting fluid ???

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Gary H

10-20-2004 12:48:40




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Someone said i could use WD 40 for starting fluid for my perkins diesel, said it lubes the cylinders and prevents damage while providing quick cold weather starting. Does anyone know for sure?




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carpg52

10-21-2004 10:13:05




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 Re: WD 40 as starting fluid ??? in reply to Gary H, 10-20-2004 12:48:40  
I have had it recommended to use on an old Detroit Diesel engine I have. Have used it and it seems to work. Not as volatile as ether, said have less chance of damage due to explosive "knock" caused by excessive ether. As others have said, better to use none at all, but a wiff of ether or whatever wouldn't seem to create a problem. Excess is definitely bad though. Have also heard of using straight propane. Another tip I heard recently, don't turn on fuel to diesel until it has spun a few revolutions and warmed up the cylinder. Seems the fuel in a cold cylinder keeps it too cool to fire. Makes sense, but I haven't tried it yet. Good luck

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txblu

10-22-2004 06:47:42




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 Re: WD 40 as starting fluid ??? in reply to carpg52, 10-21-2004 10:13:05  
I have (kept the fuel off) and it works. Spin her over for a couple of seconds and push in the fuel knob.

Been told that the propellent in today's WD isn't flammable. Think I have tried it within the last year and got no results.

Mark



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txblu

10-21-2004 06:12:56




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 Re: WD 40 as starting fluid ??? in reply to Gary H, 10-20-2004 12:48:40  
What's wrong with starting fluid? Works, lot cheaper, and has upper cyl lube for you that are worried about it.
Wally World has it (house brand) for 99 cents for a 12-16 oz spray can.

Mark



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Duane TX

10-20-2004 16:52:22




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 Re: WD 40 as starting fluid ??? in reply to Gary H, 10-20-2004 12:48:40  
That is what the guy used to start my old 6.2 diesel many years ago when I was stuck in Ky. over Christmas.



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Mark - IN.

10-20-2004 16:02:57




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 Re: WD 40 as starting fluid ??? in reply to Gary H, 10-20-2004 12:48:40  
Have used WD40 many times as starting fluid in a gas, never tried with a diesel. It is plenty explosive, not as much as ether, but is plenty. As far as it lubing the cylinders, it may, but since is being burnt, don"t see how, but it may.



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ErnieD

10-20-2004 15:26:29




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 Re: WD 40 as starting fluid ??? in reply to Gary H, 10-20-2004 12:48:40  
Used to have propane as the propellant, now use CO2.



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DRL

10-20-2004 14:56:55




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 Re: WD 40 as starting fluid ??? in reply to Gary H, 10-20-2004 12:48:40  
Works for me



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Jeff in Va

10-20-2004 13:45:40




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 Re: WD 40 as starting fluid ??? in reply to Gary H, 10-20-2004 12:48:40  
Gary,
The gentleman who rebuilt the injectors for my Ford 3000 diesel suggested WD40 as a starting fluid when I started my freshly rebuilt engine for the first time. He said it's much less volatile than ether. Granted, he also said that if you have to use a starting fluid all the time, you need to fix the problem.

Jeff



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Sloroll

10-20-2004 13:01:10




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 Re: WD 40 as starting fluid ??? in reply to Gary H, 10-20-2004 12:48:40  
I have used it many times. Don't know if it is better than anything else but it does work.



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Super Lurker

10-20-2004 14:40:25




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 Re: WD 40 as starting fluid ??? in reply to Sloroll, 10-20-2004 13:01:10  
Since they changed the formula a few years back, it doesn't work near as well as it did before.



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thejdman01

10-21-2004 11:49:02




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 Re: WD 40 as starting fluid ??? in reply to Super Lurker, 10-20-2004 14:40:25  
Super Lurker hit it right on the head works but not as well as used to. i use kano penetrating lube for botls and wd 40 for either if i find the stuff dont buy it hate it but does work in a pinch



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Would that

10-20-2004 14:59:05




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 Re: WD 40 as starting fluid ??? in reply to Super Lurker, 10-20-2004 14:40:25  
make it WD 41?



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Ol Chief

10-20-2004 18:20:03




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 Re: WD 40 as starting fluid ??? in reply to Would that, 10-20-2004 14:59:05  
I am glad to hear that it is useful for something.Not being sarcastic,I just never found it to work for me.



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Sloroll

10-20-2004 18:54:26




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 Re: WD 40 as starting fluid ??? in reply to Ol Chief, 10-20-2004 18:20:03  
Really? I have found it very good at dispersing water, what it was origionaly designed to do. I had an old MGB GT with a lucas electrical system. If all else failed hose down the E system with WD-40.



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Stickler

10-20-2004 18:29:54




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 Re: WD 40 as starting fluid ??? in reply to Ol Chief, 10-20-2004 18:20:03  
I'm with ya there....my FIL buys the stuff by the gallon.....I won't even allow it in my shop. No good for anything but tapping aluminum.



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Edchainsaw

10-20-2004 19:44:35




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 Re: WD 40 as starting fluid ??? in reply to Stickler, 10-20-2004 18:29:54  
I hear it would work... I tried it once.. either was cheaper and actually worked..

as for lubeing as it starts .. no dont think so
because what was actually starting it was the propellent.. the oil in wd40 would get trapped in any airfilter -- either with upper cylinder lube would to.. unless its injected in the manifold directly.



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