Mercedes has confirmed the cause of Lewis Hamilton’s engine blow-out during last weekend’s Malaysian Grand Prix.
Hamilton suffered an engine failure while leading the race by 20 seconds with 17 laps remaining, costing him the chance to regain the lead of the drivers’ championship at Sepang.
Mercedes confirmed at the time that it received no prior warning ahead of the engine failing, with the power unit being returned to its base in England for further evaluation.
On Thursday ahead of this weekend’s Japanese Grand Prix, a spokesperson from Mercedes confirmed the cause of the failure.
“Our analysis has shown that Lewis’ engine suffered a big-end bearing failure. This happened without warning after 618 km and was preceded by a loss of oil pressure in Turn 15,” he said.
“For this race weekend, Lewis will revert to his Singapore unit and Nico will use his Malaysia engine. We will introduce revised running parameters for all Mercedes engines this weekend.
“Planned new engines for five customer drivers this weekend will be delayed to contain further possible learning from the strip of the failed unit. They will continue to use their units from Malaysia.”
Hamilton enters this weekend’s race in Japan trailing Mercedes teammate Nico Rosberg by 23 points in the drivers’ championship.
Adam Cianciarulo (450) and Dylan Ferrandis (250) swept both motos of their divisions Saturday in the Lucas Oil Pro Motocross Championship event at Spring Creek MX Park in Millville, Minnesota, significantly impacting the points standings.
“Man, what a dream come true,” Cianciarulo said. “I really wanted to go 1-1 last round at RedBud and had that silly mistake. Today, we got the job done and made it happen. Two consecutive victories in the 450 Class just feels really good. I just want to keep the ball rolling.”
With three rounds remaining, Cianciarulo is ranked second in the standings at a 15-point deficit to Zach Osborne, who won three of the first five rounds.
In the 250 standings, Dylan Ferrandis jumped ahead of Jeremy Martin (who won three consecutive events earlier in the season) by three points (257-254).
Ferrandis beat third-ranked RJ Hampshire in the first moto and nipping Martin by 0.4 seconds in the second.
“That was a difficult race in the second moto and the pressure was on,” Ferrandis said. “It was really good for me to have that battle and come out on top in the second moto. The championship is really close and I think that we were able to put on a good show for everyone today. Jeremy [Martin] and I have a good relationship I think and we congratulated each other and talked about the battle after the race.”
NEXT: The Lucas Oil Pro Motocross Championship will hold its seventh round Sept. 26 with the Geico Motorcycle WW Ranch National at Jacksonville, Florida.
Thor Spring Creek National (Spring Creek MX Park, Millville, Minnesota)
450 Class Overall Results (Moto Finish)
Adam Cianciarulo, Port Orange, Fla., Kawasaki (1-1)
Blake Baggett, Grand Terrace, Calif., KTM (2-2)
Justin Barcia, Monroe, N.Y., Yamaha (5-4)
Chase Sexton, La Moille, Ill., Honda (8-3)
Eli Tomac, Cortez, Colo., Kawasaki (6-5)
Marvin Musquin, France, KTM (3-10)
Christian Craig, El Cajon, Calif., Honda (7-6)
Joey Savatgy, , Suzuki (9-7)
Max Anstie, United Kingdom, Suzuki (10-8)
Zach Osborne, Abingdon, Va., Husqvarna (4-16)
450 Class Championship Standings
Zach Osborne, Abingdon, Va., Husqvarna – 235
Adam Cianciarulo, Port Orange, Fla., Kawasaki – 220
Marvin Musquin, France, KTM – 215
Eli Tomac, Cortez, Colo., Kawasaki – 196
Justin Barcia, Monroe, N.Y., Yamaha – 194
Blake Baggett, Grand Terrace, Calif., KTM – 190
Chase Sexton, La Moille, Ill., Honda – 173
Christian Craig, El Cajon, Calif., Honda – 141
Broc Tickle, Holly, Mich., Yamaha – 134
Joey Savatgy, Tallahassee, Fla., Suzuki – 122
250 Class Overall Results (Moto Finish)
Dylan Ferrandis, France, Yamaha (1-1)
Jeremy Martin, Millville, Minn., Honda (5-2)
Alex Martin, Millville, Minn., Suzuki (4-4)
Jett Lawrence, Australia, Honda (3-6)
Justin Cooper, Cold Spring Harbor, N.Y., Yamaha (9-3)