how long would i need to break the engine it after i rebuild it. i am having it boared with bigger pisons and new everything internal:rings, main/rod bearings, pistons, gasket. how long to i need to take it easy on her and hows the best way to break it in?

 

3000 miles, and not going over 3000 rpms.. ???

 

500 miles i think is the general length when ya rebuild a motor just to make sure everything is tight, retorque the head gaskets

 

oh i figured the head, do i have to use that molly lube stuff on the head install again? also within that breakin period i shouldnt be towing correct?

 

break in periods with our the newer ring technology doesn't take as much time as it used to. In most cases by the time you finish rolling a motor around and installing all the pistons you have a pretty darn good ring seat. So break it in for 500 miles drain it and roll. I wouldn't tow till it's broke in.

 

would it just be safe to drive 500 change oil drive 1000 change oil and call it good?

 

dang my bad. i totally missed the "rebuild" part. i think the stuff i mentioned was the break in period for a gas engine anyway. sorry

 

all good, im going to stay away from the smoke and draging other diesels for a coupel months

 

This is how I did it. I had a bulk of oil, ftw.

Not sure if it's the "correct" way, but no problems so far. Only have about 4k on it tho..


Put it together, start it and let it warm up to normal, change oil & filter

Drive 500 miles, change oil & filter

Drive it 1000 miles, change oil & filter

Give her hell!

 

is the cam new? If so run it for about 20 min and drop the oil and change the filter. If your using molly to assemble with I would only run it for 20-30 min and atleast change the oil filter as it's going to be stuffed with the molly.