M1000 piston wash
- Thread starter Ddub
- Start date
Tons of wash. I don't see any detonation but I do see some pitting on the mag piston? Or is that just debris or something? What type of pistons? Those don't look stock. Why the rebuild? What mods?
Could be as simple as you bought a crummy brand of pistons and they stick if you don't nurse them every warm-up and break them in for 500 miles.
Could be as simple as you bought a crummy brand of pistons and they stick if you don't nurse them every warm-up and break them in for 500 miles.
just by looking at the top of the piston each is OEM cat piston. the mag side is about a stock wash the pto side is way too fat. do you have more info IE mods, pitchers of the side of the piston ect.
It looks to me like you have an imbalance in fueling between both sides too (major difference in wash). Is there fuel being trimmed from one side or the other in the map?
I see you have a PCV, but do you have anything on that sled to monitor the exhaust temperatures? If you have the sled tuned to run well the midrange gets hot quick between 5500-7000rpm.
I see you have a PCV, but do you have anything on that sled to monitor the exhaust temperatures? If you have the sled tuned to run well the midrange gets hot quick between 5500-7000rpm.
What year? O7 was lucky to get 1800 before the pto side would give up 08 and up would make 4000. If your primary is out of balance or the crank is on the out side of runout it will do the same thing
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