help with Merc 5.7 long block

[Jhess12]

Quick question, when you replace the long block, does the serial number for the engine change? Meaning the new one would be different than the old long block?

 

[alldodge]

Yes and No
The serial number indicates the motors configuration when built. A listing of all the parts used to make the original motor. The number helps tell anyone looking at the motor what they would find if nothing has changed.

If you replaced the long block with the same vintage and used all your same external stuff, then its really the same configuration. If anything was changed, it still helps with a starting point

 

[Jhess12]

ok thanks so much! We just had a new long block installed by our mechanic...4 hrs later...it blew again...Mercruser saying that they wont honor the warranty and mechanic is telling us that our only option is to replace it again...pay for another brand new one

 

[alldodge]

What caused the new motor to blow?

 

[Scott Danforth]

if it was a brand new mercruiser motor installed by a mercruiser licensed and supported dealer, then they would cover it

also, what caused the motor to blow? inquiring minds would like to know.

 

[tpenfield]

ok thanks so much! We just had a new long block installed by our mechanic...4 hrs later...it blew again...Mercruser saying that they wont honor the warranty and mechanic is telling us that our only option is to replace it again...pay for another brand new one

+1 to the other inquires about the details.

Bad, bad mechanic, not standing up for you.

 

[Maclin]

Are asking about the serial number because you are in a State that requires engine serial numbers to be registered?

 

[Bondo]

What caused the new motor to blow?

Ayuh,....... Welcome Aboard,..... This is the question of the day,......

 

[Bt Doctur]

Can`t wait to hear how it was being operated before the failure, Failure to read the instructions on a new motor has lead to multiple failures