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I did not hone the liners. I read the TM and did not see anywhere where it said to do that. They were smooth and had the cross hatch and looked good. Regular Rotella T oil (white jug) and 2 new spin on filters.I only read a few pages... But, did you hone the liners? Did you follow the break in procedure from the TM? Did you happen to use synthetic oil for the first fill?
Sounds like your rings didnt seat!
I didn't have a dyno to put the engine on, so I just took it down the highway, trying to simulate the break in procedure as best I could. I didn't let it idle long after I first started it up so that the cylinders did not glaze. only ran for about 3.5 minutes to check for leaks and then I was on the road. I keep thinking about it over and over in my head and I cant think for the life of me why I would still be having blow by and only 350 PSI of compression in all 6 holes when before i rebuilt it, the highest number I got was 400 PSI (number one cylinder, see previous posts for more data). The "LDS" pistons I put in had the 2 hole squirters come with the pistons and the pistons only had 2 compression rings. The manual states LDT pistons had 3 compression rings and the LDS engines had 4 compression rings. As we all know, metals and technology has come a long way since our manuals were made, but I am thinking the cause of my problems is the pistons only having 2 compression rings. Yes, i clocked the compression rings correctly, 180 degrees apart and the oil ring 90 degrees from that.
Im beginning to think that if i was going to do this again, i would not have bought the new pistons kits and only put new rings in. I'm sure it would have been better. Besides that it still does not explain the blow by. What engineer or what engine did they test these pistons in and be satisfied with the blow by if they got the same results I did? I just want more answers to all the questions I have and its frustrating. This shouldn't be happening with all of the new parts I put in this thing.