merc 275 blown gearcase

[jetfiremuck]

New member.At 4k Rpm motor kicked out like i hit something. no drive but drive shaft turning no lower unit or prop damage. chunk missing from gearcase where drive shaft lower gear meshes with prop shaft.lubricant ok in unit before damage. It has a ratcheting gearcase with a bobs lo water pickup. Approx 250 hrs on motors.

 

[CARLOS]

Re: merc 275 blown gearcase

HY JET,<br /><br />I´VE AN 1990 MARINER 275HP.<br />HAVE YOU CHECKED THE DAMPER OF PROPELLER?<br />HAVE YOU REPLACED THE GEAR OIL?<br />IF ANY BROKEN INSIDE, YOU WILL NEED TO REMOVE LOWER UNIT AND SEE WHAT HAPPENED...<br />ANY HESITATION, CONTACT PLEASE.<br /><br />CARLOS SCHEMEL<br />VENEZUELA