Engine Breakin Procedure Controversy
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Joined: Jan 2003
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From: FL
Re: wannadiesel
Originally posted by GeorgiaCracker
I agree. I am somewhat confused but perhaps the manual transmissions do break in better than the automatics because may people with autos never compression break their engines.
I am also uncertain about the red-line on my 2004 (305 HP version). I have taken it up to about 3600 RPM and it is still accelerating strongly. I backed off because the red-line on the Tach starts at 3200. It runs up to 5000. Why have a tach that goes 1800 RPM above the redline.
Rather than start a new thread. I would appreciate any comments on RPM and engine damage. How high are members here taking their engines?
I agree. I am somewhat confused but perhaps the manual transmissions do break in better than the automatics because may people with autos never compression break their engines.
I am also uncertain about the red-line on my 2004 (305 HP version). I have taken it up to about 3600 RPM and it is still accelerating strongly. I backed off because the red-line on the Tach starts at 3200. It runs up to 5000. Why have a tach that goes 1800 RPM above the redline.
Rather than start a new thread. I would appreciate any comments on RPM and engine damage. How high are members here taking their engines?
I promise, this time, no bombing. Swear on my cats grave.
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Joined: Jan 2004
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From: Georgia
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I have seen 3600-3700 and I was not defueling, so there must be some room left. Would you expect that much error in the Tach?
Given the number of Cummins out there you know they are run up to the limit by many people. You dont hear about floating valves and broken cranks so the engine must have protective restraints. When a PSD defuels, you almost grind to a halt.
I assume the Cummin protects itself in a similar fashion, in which case 4100 RPM and harmonic distortions are only theoritical not actually attainable.
I am still interested in the value of using engine compression braking as a positive breakin tactic. No one seems to feel strongly for or agin this.
Given the number of Cummins out there you know they are run up to the limit by many people. You dont hear about floating valves and broken cranks so the engine must have protective restraints. When a PSD defuels, you almost grind to a halt.
I assume the Cummin protects itself in a similar fashion, in which case 4100 RPM and harmonic distortions are only theoritical not actually attainable.
I am still interested in the value of using engine compression braking as a positive breakin tactic. No one seems to feel strongly for or agin this.
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