braaapbraaap
Active member
Sooo I have a 2016 pro 163 with silber turbo 7# boost half av gas half 91. 1500km and was running mint... then I blew a coolant hose and got her real toasty. 115C when I looked at gauge before shutting down on its own. Seen coolant had drained then towed to truck. Patched hose, refilled and tried riding a few days later. Now I’m experiencing terrible lag, and rpms dropped from 8500 WOT to around 8100rpm. The sled ran very slobbery before, plugs would be wet and exhaust smoked a lot. Now the plugs and exhaust look real lean, but sled isn’t detonating or anything. Idle rpm is same as before 1700rpm. Compression same as before 110 per side. Starts idles and reverse fine. Not burning or leaking coolant. Changed exhaust springs and donuts. Pressure tested exhaust, intake and crank case (no leaks). Checked turbo impeller, turbine and shaft (ok), disassembled and inspected blow off valve and aneroid valve (ok). Changed plugs as well.
Was running 74g weights and switched to 68s and only gained about 150rpm and didn’t help nasty slow lag. Seemed to sometimes stall out for a moment around 6500rpm when under good load. This made be think exhaust valves, cleaned and inspected exhaust valves but made no difference.
Rode the sled 3 more days like this with out any changes to performance or compression.
Anybody have any thoughts on what else I can check that could do this after a over heat? Ill be checking tps and probably replacing the head seals either way, but any other ideas would be greatly appreciated.
Was running 74g weights and switched to 68s and only gained about 150rpm and didn’t help nasty slow lag. Seemed to sometimes stall out for a moment around 6500rpm when under good load. This made be think exhaust valves, cleaned and inspected exhaust valves but made no difference.
Rode the sled 3 more days like this with out any changes to performance or compression.
Anybody have any thoughts on what else I can check that could do this after a over heat? Ill be checking tps and probably replacing the head seals either way, but any other ideas would be greatly appreciated.
