Crankshaft issues
- Thread starter IdahoRob
- Start date
hey Guy,
i took it from this thread on DP:
http://www.dieselplace.com/forum/showthread.php?p=3855289#post3855289
your input on this matter would be much appreciated:hug:
on edit: after re-reading the thread, the 2/7 swap isnt confirmed by EDP, i read it wrong the first time and that was posted as a question that was unanswered.
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My crank passed a mag test with flying colours. I guess we will see. I think it's kinda like Pat said about the pistons. You never really know how long they will last until they go so it seems more along the lines of quality control than anything else as to what determines how long they will last.
I agree with you guys on the gear issue as well. Lose the water pump is a good start. Too bad we couldn't run a timing chain.
I agree with you guys on the gear issue as well. Lose the water pump is a good start. Too bad we couldn't run a timing chain.
I can't comment on this. I'm too pissed off right now. I need to gather some more facts.
it's been brought to attention that the CAM doesn't change the firing order (which piston is in position for firing) but rather the CRANK does. The cam obviously just controls when the valves open and BOTH would have to be different to actually change the firing order, right?
Yes and no. You can change the firing order with a different grind on the cam, but you are still limited by the throws on the crank. The 2/7 swap would be a neat trick...
Just curious if the misfire presence or lack of being programmed for the changes is effected with firing order changes? I read an article somewhere about mechanical injection and changing the firing order, but doing so with these current calibrations/operating system I would think would be a pain.
Here is some firing order swap info: http://www.cpgnation.com/forum/camshaft-firing-order-swap-q-635.html
I'm gonna make a guess that this is the new firing order they're going with: 1-5-7-8-4-2-6-3
I'm gonna make a guess that this is the new firing order they're going with: 1-5-7-8-4-2-6-3
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My crank passed a wet-mag check also.Maybe you will have better luck though.
I sure hope so!!
Are you talking about in the link I posted? If so, there was no Duramax reference. That was a general article about firing order swaps. The forces in any V8 will be similar, they are just generally greater in a high power diesel. I thought it was good info that someone might want to read. It did have some good info about crankshaft issues.
I never had my crank checked if it breaks it breaks. Seems the more you try to get it right the sooner they break throw it in there give it hell and they last. If mine blows I'm replacing it with my 400 racing sbc set up for the big turbo or supercharger hell with it.
