About 8 to 10 before you hear it try to fire. Another 3 or 4 before it actually starts.

Only replaced the bad one. The other load tested good. Why? It is turning over quick and strong now.

 

normally when you need one battery you need two
just thinking with one old battery being borderline if you still have an mperage problem
guess you could do a test by putting jumpers on the old battery and see if things change

 

I'm a little bit confussed. I replaced the bad battery, but the other load tested good. It now turns over fine. Strong and quick. The problem I am having now is that it does not start firing until about the 8th to 10th turn over. It doesn't actually start until the 12th to 14th turn over. Would not replacing both batteries at once cause this?

 

I had to learn this one from experience. With a diesel (especially the strokes from what I hear) it can SEEM like its turning over fast enough to start (if you're used to gassers) but it's actually not. The starter has to turn the motor at a high rate of speed in order to build up enough compression to ignite the fuel (you EXPERTS chime in to correct my understanding of general diesel science).

Do you have access to something that can capture audio, so we can listen to it and go from there?

 

it can be spinning what sounds to be fast enough but if the electronics aren't getting proper voltage it won't start

 

what about a clogged Fuel filter? just a thought

 

Sorry about the delay, busy weekend. That info helps. My dad replaced the batteries in his diesel a couple of months ago. I'll pull one of those out and drop it in to see if it makes a difference. I don't know if I have a way to get an audio sample. I can try though. My brother in law borrowed it Saturday to pull a cattle trailer. I will have to do that when he brings it back. Probably be tomorrow.

 

I just replaced it about two weeks ago. I went ahead and did it when I was fixing the leaks on the filter housing.

 

Let us know if that fixes it.