Re: Diesel engine break in

Posted by txblu on February 11, 2005 at 04:05:13 from (209.151.115.115):

In Reply to: Diesel engine break in posted by Northwest dude on February 10, 2005 at 21:15:42:

I agree with Wayne and his dad. Main thing to watch is coolant temp. You want to push it to limber it up, varying the rpm's (not much full throttle for the first 50 or so hrs; like a zip up there and back down once in awhile); longer durations as the hours build. Varying speeds and loads; maybe just drive it up and down the road for the first couple of hours (show off to your neighbors ha ha).

Some come back and retorque the head. I have never done that and have never needed to......and what a pain.

As long as she isn't overheating you are good to go. If she overheats, back off to idle in N and let her cool off (don't shut it off) and when it cools back to the thermostat first open temp (160-180 thereabouts)you're good to go again.

Drain the "normal running temp" oil (don't burn yourself) after about 50 hrs and put in new with a new filter.

Use diesel oil, not auto oil. If you need to know what that is check the archives.....plenty of discussions there (CH-4 type rated oil....along with the auto SJ type rating.....CH-4/SJ is a current rating. C is for compression type engines and S is for spark type engines). Being it's new, you might use the light multiviscosity (10-30) and later on go on to the heavier duty 15w-40. As long as you have good oil pressure, the lighter oil should be ok....Howsomever, I am a thick oil nut and my overhauls and old iron all get 15w-40 or 15w-50 (Mobil 1).

HTH, Good Luck,

Mark.

Mark

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