440ICD block heater

Post by **Lavoy** » Sat Feb 23, 2013 10:43 am

Single digits here last night, and the back of the head was 75 degrees or so. Crawler fired almost right away, would have started but obviously some idiot has gotten air in the system someplace.
Lavoy

jtrichard · Post by **jtrichard** » Sat Feb 23, 2013 12:06 pm

the help you get these days

i bet you would fire him but he works so cheap

Post by **Lavoy** » Sat Feb 23, 2013 6:37 pm

That and no one else would work for me, so better keep him around!
Lavoy

whiteclipse16 · Post by **whiteclipse16** » Mon Feb 25, 2013 6:56 am

Sounds like a no brainer to me then.
When can I order one?
How much antifreeze has to be drained to install?

Also, where are you getting air? I have been under the impression this system pushes the air out on it's own since it has a return line. Air shouldn't be much of an issue.

Post by **Lavoy** » Mon Feb 25, 2013 8:11 am

Be a little while yet, still waiting to get the plates laser cut.
No idea on the air, I am truly stumped. It runs great, but then it sits over night, and when you go to restart, there is obvioously air getting in the system. I may end up replumbing the fuel lines to the fuel filter and see if that does it.
Lavoy

jtrichard · Post by **jtrichard** » Mon Feb 25, 2013 9:10 pm

lavoy do they run a fuel pump? on my 6v53 the seals where bad in the fuel pump and it would suck air but on a crawler i would think with the tank high it would not? have a pump???

Post by **Lavoy** » Mon Feb 25, 2013 9:20 pm

Yes, they run a fuel pump, but it is below the level of the fuel, so should not be getting any air in there.
Lavoy

jtrichard · Post by **jtrichard** » Mon Feb 25, 2013 10:10 pm

is the pump before or after the filters? new filters? i would still think about the pump seals

JD440ICD2006 · Post by **JD440ICD2006** » Tue Feb 26, 2013 8:50 am

Lavoy,

What makes you think it is air? This is a positive flow system with a waste pipe returning to the tank. If it was drawing air, it would not run very well.
You should have 50 plus PSI on the input fuel pipe going in to the block.
Could be a little water or moisture that is freezing at night.

Post by **Lavoy** » Tue Feb 26, 2013 11:15 am

When I first got it, it would throw smoke immediately, fire after a little bit, hiccup on one cylinder for a few seconds, then settle down and purr. After changing fuel filter, and having the lines open, it will smoke, barely fires on one cylinder, and if/when it starts, misses like crazy for a long time, and will even hiccup while idling. It will also run out of power while pushing, and it is obviously dropping out one cylinder, maybe both, but doesn't die. After you have pushed with it for a few miuntes, it comes out of it, runs like crazy, pushes great, no haze whatsoever unless it is down to its last breath, then a little black smoke is all. For quite a while afterward, you hit the starter, it rolls about 10 turns, lights right up, and runs or idles great. None of this ever occured prior to me opening up the fuel system, that is why I am blaming it on something I did.
I know what you mean about the fuel flowing in a loop, that is what makes me even more frustrated.

Lavoy

whiteclipse16 · Post by **whiteclipse16** » Wed Feb 27, 2013 7:44 am

Lavoy, for what it's worth, mine starts exactly how you described yours starting before you opened up the fuel system.
When you changed the fuel filter, did the new filter seem to fit ok. I had issues with mine and ended up having to make a small spacer.
I'm not sure if this would make air or anything, but I just know it was a problem spot for me so it might be something to look at.

Post by **Lavoy** » Wed Feb 27, 2013 9:24 am

I am going to pull the filter and check, it has to be in there somewhere.
Lavoy

JD440ICD2006 · Post by **JD440ICD2006** » Wed Feb 27, 2013 10:06 am

Lavoy,

Please let us know what you find, it is always interesting to learn what makes these girls act up!

Post by **Lavoy** » Fri Mar 01, 2013 4:23 pm

FINALLY, the rotten little yellow bastard runs!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I was right, it was something I touched, but not the filter, it was the line from the filter to the pump. For whatever reason, it finally dawned on me today to take a look at the line from the filter to the fuel pump. It is kind of hard and crusty on the outsdie, so I took it off to check. I could barely blow air through it, and when I pressurized it with an air hose with the other end covered by my finger, it leaked air like a seive. Turns out it was disintegrating inside, and when I put it back on, it had twisted slightly at the pump and basically choked the pump off. It is a wonder it ran at all.
Went into town and had a new hose made, put it on, a couple small whiffs of ether later at 23 degrees, it fired right up and purrs like a kitten. And to think I was ready to light it on fire and roast weiners with it.

Lavoy

JD440ICD2006 · Post by **JD440ICD2006** » Fri Mar 01, 2013 4:43 pm

Lavoy,

Thanks for reporting what you found.
Did you go back with copper pipe like factory or did you use rubber/hydraulic hose?

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