The Evolution Motor Mount Compensator
 

Product Information | Installation | Order Online


PRODUCT INFORMATION

Normally, motor mounts are designed to accept static, vertical loads with various hardness of rubber to attain the desired critical dampening ratio and static deflection. With all the power of propeller thrust pushing on the engine and motor mounts, the rubber part of the motor mount, by itself, has to be hard to withstand these horizontal, shear forces while maintaining the critical alignment between the engine and shaft.

In many instances, there are more pounds of propeller thrust to contend with than the static, vertical pounds of engine and gear weight. Under this condition, the very hard motor mounts afford little isolation of the engine vibration to the hull.

To isolate the engine vibration to the hull with truly soft mounts, either expensive thrust bearing assemblies must be used, or -- Evolution Motor Mount Compensators (EMMC). The EMMC will handle all the forward and reverse thrust on the engine and allow for softness in mounts that have eliminated up to 80 percent of the engine vibration to the hull. This alone has reduced sound levels on board a vessel by as much as 15 decibels. Soft mounts coupled to the EMMC positively change the environment aboard any vessel immediately on starting the engine(s).

With a "free floating" engine on soft mounts, it is recommended that all connections to the engine be flexible, i.e., flexible shaft coupling, exhaust coupling, etc. We would be happy to quote on flexible shaft couplings.

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INSTALLATION SPECIFICATIONS

  • With the EMMC connected to the motor mount, position the unit under the engine with the compensator's grommets aft, toward the stern. on V-drive installations, the grommets would be positioned forward, toward the bow.
  • It may be necessary to remove the compensator rod and its nuts, washers and grommets to tighten bolts to the engine bed.
  • After final engine alignment, adjust the compensator rod to exert minimum pressure on the motor mount stud. The stud should be in a relaxed vertical position, perpendicular to the base.

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ORDER SECURELY ONLINE
Find the configuration you need, then click "Purchase."

SKU Title Supporting Engines Weighing* Price  
EMMC1 Evolution Motor Mount Compensator up to @ 600 lbs $99.00 Purchase
EMMC1-4 EMMC (set of 4) up to @ 600 lbs $396.00 Purchase
EMMC2 Evolution Motor Mount Compensator up to @ 2,800 lbs $129.00 Purchase
EMMC2-4 EMMC (set of 4) up to @ 2,800 lbs $516.00 Purchase
EMMC3 Evolution Motor Mount Compensator up to @ 6,200 lbs $159.00 Purchase
EMMC3-4 EMMC (set of 4) up to @ 6,200 lbs $636.00 Purchase
EMMC4 Evolution Motor Mount Compensator up to @ 16,000 lbs $599.00 Purchase
EMMC4-4 EMMC (set of 4) up to @ 16,000 lbs $2,396.00 Purchase

Prices are F.O.B. Rockland, Maine plant. *Deflection is a determining factor.

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