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    1990 Mercury 2.4 175 - water diverters

    thanks - correct positions confirmed - leaving 1/8 inch top and bottom - not bottomed out
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    1990 Mercury 2.4 175 - water diverters

    Does anyone have an image of the placement of the diverters in the cylinder water jackets - had one but can't find it
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    Help - just bought on a whim a 1980 (maybe) Mercury 175 hp - need help on release of the clam shell cowl and cant find a serial number to verify it

    Nope - it's an 8 pin - worked thru the wiring tossed the console now going to pull it back out of the dumpster the gauges were decent lol - got it to turn over and the trim and tilt worked - thankfully - next going to put it on my boat and hook up the gas on muffs and see what happens. This...
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    Help - just bought on a whim a 1980 (maybe) Mercury 175 hp - need help on release of the clam shell cowl and cant find a serial number to verify it

    thanks that's what I thought - going to put on a stand and work through - bottom line if I get it going and checks out will put it up for sale - got to figure out the wiring first - has a weird tilt and trim unit
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    Help - just bought on a whim a 1980 (maybe) Mercury 175 hp - need help on release of the clam shell cowl and cant find a serial number to verify it

    The engine at least one side lol - I got one side of the cowl off - looks clean and maybe maintained - the tilt and trim is a single ram with the motor mounted outside the probably inside the transom - the motor is in an up position which I will have to deal with to put it on my stand to start...
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    1990 Mercury 175 Overheat warning possible causes?

    Good info - pretty sure my poppet is stuck shut too - pulled the stats and am replacing them - pulled the cover off the poppet and ran into another problem - no one has probably ever changed the poppet and its the old style to piece cover - top cover comes off easy but now have to figure out how...
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    1990 Mercury 175 Overheat warning possible causes?

    Thanks - appreciate the reply affirms my thoughts - but wasn't aware of the head bolt scenario will check them. Have new thermostats and parts to replace the poppet arrive today. There is a great video on replacing the poppet valve on you tube by Pro Wrenching - to be honest I didn't know...
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    1990 Mercury 175 Overheat warning possible causes?

    Put the boat back in the water after being out for nearly a year. Had to put in a new trim and tilt unit. Put the engine on muffs and started it up and was okay - but didn't see it peeing - but water was coming out of the prop - ran it for less than a minute. Next day I put her in the water...
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    1990 Mercury 175 front cowl release mechanism - spring reinstall

    finally getting my boat and motor back in the water - however, am having a difficult time reinstalling the front cowl release mechanism - can't figure out how to set up and install the spring ie where does the flange go to set up the tension for the release - has to go somehow to the part that...
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    Merc Trim and Tilt Bench Test

    Took me almost 3 months to knock out the tri lobe pin - finally got it out. Ordered a second hand Merc Trim and Tilt unit and wasn't able to even test it for 6 1/2 months. Finally got to do a test on it and it works but there is a problem. Just had it upright on the ground by the trailer and...
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    Mercury Spanner wrench for tilt and trim

    Ok bought this used tilt and trim replaced motor need to check pump one screw (always one) seized but think I get it out - maybe lol - think the orings in the ram trims need replacing tried a cheap spanner - cap no move - watched a video using the mercury Spanner a socket wrench and a 3 ft...
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    Mercury Tilt and Trim units

    thanks for your help - I found a used unit on eBay that looks like it will work - now I just have to get the tri lobe pin out and get the unit out - put my new motor and pump in the used unit and install it. Seems like no matter which way I have gone with this I just keep running into road...
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    Mercury Tilt and Trim units

    hadn't heard of doing that - I had drilled it through and got a stainless steel valve into it after having to drill a bit more to get it in almost flush but still leaks - haven't drilled it oversize - would a machinist know what I was talking about if I showed them the unit and explained what I...
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    Mercury Tilt and Trim units

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    Mercury Tilt and Trim units

    basically just need the body - if the trim rods are in decent condition fine - my body because of the release valve drill out is shot
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    Mercury Tilt and Trim units

    Live in Brentwood, CA boats out Piper Point in Bethel Island river rat paradise lol
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    Mercury Tilt and Trim units

    Have a 1990 Mercury 175 with a design 1 trim and tilt unit - has been a battle due to release valve being seized and actually deteriorated ( probably original as in black plastic if anyone remembers) - motor was dead and replaced it and pump changing to a 2 wire vice 3 - got a new stainless...
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    1990 Black Max 175 PTT replacement odyssey

    Okay started with motor trimmed mid per trim gauge - pump verified as dead - release valve has proven useless - got a screw driver imbedded in the head but could not get it to budge - trying to get starboard transom bracket unstuck - everything I've seen on here and web talks about steering...
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    Jack Plate for a 1990 Mercury black max 175

    Okay since I have to pull the motor checked out jack plates. My shaft puts the cavitation plate at or just above bottom of transom with prop at 21 inches. It's mounted on a 1990 Ranger 375v and performance seems good. Looked at 4 in manual aluminum Jack plate but not sure how much benefit I...
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    1990 175 BLK Max on 1990 Ranger 375v - transom bracket lower bolts

    update had to remove batteries and oil tank then the clamps holding down the gas tank and pull it forward and then could access the bottom bracket bolts. Have removed the power steering connections and still can't slide the bracket - HELP. Motor trimmed at mid level by trim gauge. Release...
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