whats a 93 merc 2.5 worth?

BoomerMuskoka · **Posted:** September 1st, 2013, 4:52 pm

STV builder wrote:

yeah i talked with my buddy he said the number is stamped right where both pieces of the crank case meet.
and that number is the ob030377 number

weird i thought it was just a 200, who knows,, decals look Great, good job.

are you putting that motor on an stv?

STV builder · **Posted:** September 1st, 2013, 10:52 pm

not sure yet. my login for mercnet isnt working, so ill have to take care of that to run the serial maybe tomorrow or Tuesday

STV builder · **Posted:** September 2nd, 2013, 12:01 am

its actually a 1991.... little older
"HIGH PERFORMANCE 20"MID,RH 1.87:1 CLE 2.5 L CARB "

BoomerMuskoka · **Posted:** September 2nd, 2013, 9:34 am

STV builder wrote:

its actually a 1991.... little older
"HIGH PERFORMANCE 20"MID,RH 1.87:1 CLE 2.5 L CARB "

that would be the first year of the 2.5L, no? i have a 91 2.4l "fat block" its a strange motor.

DoktorC · **Posted:** September 2nd, 2013, 10:32 am

STV builder wrote:

its actually a 1991.... little older
"HIGH PERFORMANCE 20"MID,RH 1.87:1 CLE 2.5 L CARB "

So...that's a 245?...which would make that an excellent deal!

STV builder · **Posted:** September 2nd, 2013, 11:55 am

BoomerMuskoka wrote:

STV builder wrote:

yeah i talked with my buddy he said the number is stamped right where both pieces of the crank case meet.
and that number is the ob030377 number

weird i thought it was just a 200, who knows,, decals look Great, good job.

are you putting that motor on an stv?

yeah it will go on the STV,

BoomerMuskoka · **Posted:** September 3rd, 2013, 12:00 am

DoktorC wrote:

STV builder wrote:

its actually a 1991.... little older
"HIGH PERFORMANCE 20"MID,RH 1.87:1 CLE 2.5 L CARB "

So...that's a 245?...which would make that an excellent deal!

should be a strong motor,

cant wait to see it run

RBT · **Posted:** September 4th, 2013, 10:35 am

Ya that is a smokin deal, it is for sure a 2.5 carb. First year.
Compression is low, they had ring problems. Check to see if the heads are updated. The first heads were 42cc, the update was to 38cc. I would pull the heads and make sure the nic is still in good shape. Leak the motor down. Those are good motors, and if it is virgin I am sure will need rings. And well worth restoring. Jetted correctly it will run with a 260 efi.

STV builder · **Posted:** September 4th, 2013, 5:54 pm

thanks RBT.
the compression seemed low to me as well, but it has sat for 4+ years so that's a dry cyl bore for sure.
how can i determine if it has 42 or 38 cc heads?
I can pull the heads off tomorrow night and find out.
for a ring set is there a aftermarket product that is better then mercury OEM stuff?
what about carburetor kits. OEm the way to go to rebuild those ?

RBT · **Posted:** September 4th, 2013, 7:19 pm

Getting rings for those pistons could be a problem, they will be side pin mahle. Great pistons, but nla.

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whats a 93 merc 2.5 worth?

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