finding the right engine coupler

[farr2gone]

I recently got my boat back from a 1 1/2 year experience with a bad mechanic and my coupler went out last weekend on its first run since the new engine was put in. I have an 88 bomber with the 3.0L Mercruiser Alpha 1. When going to order the part by the engine serial I noticed that it is not at all visible on the plate. I can still read everything else on it as well as the drive unit and transom #'s. I don't even want to imagine why its not there but is there any other way before I pull the engine to know exactly which coupler I'll need. Going back to that mechanic is not even an option. Thanks for any help.

 

[Bt Doctur]

Re: finding the right engine coupler

Rare to strip a coupler that fast ,are you sure there was oil in the drive.
year and serial numbers

 

[Don S]

Re: finding the right engine coupler

Without knowing any of the details, my guess is the engine was installed without the drive ever being removed. Some of the hardware under the rear mounts is missing and when everything got tightened down, it was all out of alignment.

 

[farr2gone]

Re: finding the right engine coupler

yes checked to make sure it was full 2 days before went out. Just cant figure out how to order the right part without the number before i pull the motor

 

[farr2gone]

Re: finding the right engine coupler

Nothing this mechanic did would suprise me. I found several bolts loose and missing and the tensioner arm to power steering pump was not even there.

 

[Bondo]

Re: finding the right engine coupler

I can still read everything else on it as well as the drive unit and transom #'s.
Just cant figure out how to order the right part without the number before i pull the motor

Ayuh,... Posting the Info you Do have would be a nice Start....

 

[farr2gone]

Re: finding the right engine coupler

engine model mcm3.0L
130 hp 181CID
Drive Unit OB803504
I don't know if there is anything else that would help. Not even sure how to find the year of this replacement engine.

Thanks