Water in cylinders??

Steamboat · Oct 27, 2019

We just ended a 3 month drought here in southern Virginia. During most of that time I had my Ford 5000 diesel stripted down, outside, with muffler off (yeh, no need to remind me how dumb that was). We may have had a few spritzes of rain during that time. Now I have her back together and she will not start. If a little water got in through open exhaust manifold where would it settle? If that is what is keeping her from starting, how can I purge the water? I tried capturing fuel sample from top of injectors when cranking and bleeding, to no avail.

old · Oct 27, 2019

Does it spin over but not start or is it hyd locking on you?? If it spins over water in not your problem. Most of the time if one get a little water in and it spins over the water will be push out the exhaust. I just started my D-17 today and it had some water get down the exhaust and when it fired up the water came pouring out

47fivewindow · Oct 27, 2019

I would think that if it cranks over water is not your problem. Do you have fuel when you crack the injectors input lines?

Adirondack case guy · Oct 27, 2019

If water entered the manifold and didn't drain from manifold, it would enter the cylinders. If there was water in the cylinders it would be hydro-locked and would not turn over. You say you have been cranking it over, so I doubt that your problem is water, unless it got into your fuel system.
Loren

Steamboat · Oct 27, 2019

Like I said, I tried to catch fuel sample while bleeding injectors. But, Yes, it does crank easy and a little smoke comes out muffler.

Steve@Advance · Oct 27, 2019

Does the starter sound normal? As in compression on all cylinders?

Any white fuel vapor out the exhaust? No vapor means no fuel.

Steamboat · Oct 27, 2019

So I am assuming that Y'all are saying that if it does crank and some fuel comes out while bleeding injectors, that water in cylinders is NOT my problem? Maybe I have just not purged all the air? Or is there any other problem that I should be aware of?

Janicholson · Oct 27, 2019

Does it have glow plugs? are they working. If a small white vapor is coming out of the exhaust it may not be bled enough. Pull starting (if a gear trans) might be a best option for the starter motor. Jim

Traditional Farmer · Oct 27, 2019

How much have you cranked it? If some water went down the exhaust manifold into the cylinders and got them wet it'll be hard to start a lot of times.Try again tomorrow with jumpers or jump box on the battery it may fire right up.And also check the fuel shut off.

MarkB_MI · Oct 27, 2019

You may have a stuck exhaust valve or two.

ditchwitch · Oct 27, 2019

Yes you are correct. No smoke no fuel. And if the motor did turn over you wouldn't have to worry about water because it didn't hydro lock. Maybe a little water could seep by the pistons and rings but probably not enough to worry about and would probably dissipate after running and getting up to normal engine temp. Sounds like maybe not bleed good enough yet.

ditchwitch · Oct 27, 2019

Water shouldnt be in your fuel unless the fuel cap was left off. Water is not going to back up in the fuel tank from the exhaust

David G · Oct 27, 2019

If it cranks, you got lucky, no hydrolock.

It takes a long time to get all the air out.

showcrop · Oct 27, 2019

It sounds highly unlikely that water is the problem. It is much more productive to stick to the likely culprits rather than the highly unusual until the likely ones are totally exhausted. Two things initially: fuel and compression. To be sure that you have fuel, you need good filters, a clear fuel water separator, and they and the pump have to be properly bled. There is no need to catch fuel at the top of the injectors, but one at a time, loosen the fuel lines to the injectors and crank the motor until you have fuel spurting out. To be sure that you have compression, charge your battery, then while trying to start it boost it from your truck or a high rate charger. A diesel, in order to make enough compression to start, needs adequate cranking speed. It will crank all day at just under the starting speed without starting. Low cranking speed as you probably know is usually due to bad cable connections. Eliminate the usual problems then post back.

Steamboat · Oct 28, 2019

New fuel filters, connections, no leaks. Will try cranking with battery charger on higher amps. Thanks.

Steamboat · Oct 28, 2019

New fuel shutoff, no leaks.

Steamboat · Oct 28, 2019

No glow plugs.

Stephen Newell · Oct 28, 2019

Could be a lot of things. Make sure the glow plugs are working. Then you might do a compression test. With a diesel compression is everything.

If there is water in the exhaust manifold when you get it running the pressure would either blow it out or the heat would dry it.

4wdtom · Oct 28, 2019

I have seen a diesel helped in starting by placing a flaming newspaper at the air intake. You need fuel, air and heat to start one. If you aren't getting enough heat by normal compression or glow plugs that's where this comes in. Of course being careful not to catch something else on fire like oil from leaking gaskets.

BarnyardEngineering · Oct 28, 2019

(quoted from post at 06:46:24 10/28/19) Could be a lot of things.

Except water.

Water in cylinders??

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