1986 Mariner 150 Info?

[DukesFin]

I picked up a boat with a "1986 Mariner 150" with a reported serial number of B129123. This was what was indicated on the bill of sale. There are NO STICKERS on the motor or bracket. It runs like a top but I can't get much info about the motor... I'd love to try and figure out what I've really got with some specificity.

Specifically, I'm looking for lower unit torque specs (just got a replacement impeller kit) and if I'm missing an o-ring between the long water tube and the short 3" tube/adapter coming out of the impeller housing. Seems like a "loose fit".

Thanks!

 

[DukesFin]

Ah, it seems the 3" tube in the impeller housing guides the water tube into the o-ring that is inside the housing... All good there!

Now, just need torque specs. I'll snap some pics of the motor so you can see what I'm working with..

 

[Chris1956]

I am sure that there are torque values for the waterpump bolts, which are 1/4" bolts, however, I never used them. The waterpump is plastic. Make the bolts snug but overtightening them will crack the pump.