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  1. M

    1987 Mercruiser 170 coolant gaskets

    Hello, I have a coolant leak and was told to replace to gaskets for the pump inlet and the impeller cover. I have the Clymer shop manual, but it is hard to follow. Does anyone know of somewhere I can look up instructions for replacing these coolant gaskets? video? or better instructions? I...
  2. M

    mercruiser stern drive bellows

    Hello I am having a hard time installing an U-joint bellow in my stern drive of a 1987 Alpha 1 170. I have used the adhesive and clamps, but the side closest to me, as I install it, does not hold well at all. Is there something else I can do? Also, I need an expander tool for the exhaust bellow...
  3. M

    mercruiser stern drive bellows

    I'm having a rough time with the u-joint bellow. I was able to remove it, but I am having a hard time installing it. Does the bell housing have to be completely taken off to enable the installment? Does anyone have a good site I can reference to guide me through this? The shift cable is really...
  4. M

    1987 mercruiser closed system cooling system

    Hey guys, I am at my witts end with my cooling system. I have a 1987 170 hp mercruiser, inline. It has a closed system. I have posted questions on my system before, but i have a specific question about it now. Do I have to take off the whole belt system in the front of the engine to enable the...
  5. M

    Anti-freeze cooling system gasket...Where to find them?

    I have a 1987 mercruiser 170. i have been having a substantial leak from the front cooling system housing. The gaskets now, of course, need to be replaced, but I'm not sure where to look for them. I have a part #, Mercruiser 27-68714A6. Does iboats carry them? Thanks!
  6. M

    Please Help! Mercruiser closed inline cooling system removal

    I have an anti-freeze leak and I am having a hard time removing the thermostat housing to replace the gasket. Am I suppose to remove the drive belt before I take the housing out? If so, what is the best way to take the belt off? My book is hard to follow. I was trying to take the housing off by...
  7. M

    1987 Mercruiser Anti-freeze leak

    I have a leak from the front of the engine, looks to me from the front water system, but I might be totally wrong. However, is there a better way to service that front gasket, besides taking that whole front piece off? Does anyone know if that spray "leak stop" stuff really works? It was...
  8. M

    1987 Mercruiser Gimbal Bearings

    hello! I ordered a whole stern drive seal kit and the seller was only going to sell me the center gimbal bearing piece. I asked why and they stated that it is very tricky, "very breakable", when the whole piece is replaced. They will send it to me if I ask them to, but I wanted to see what you...
  9. M

    1987 Mercuiser Stern Drive Boots

    I am trying to find the best place to buy a new set of stern drive boots for a 1987 mercruiser. I might be calling them by the wrong name, but that's what the mechanic called them. They are the black rubber tubes that keep the water from entering the inboard part of the engine, I believe. I...
  10. M

    Still having trouble with my 1987 Merc

    Hello Again, The boat is still cranking, but not turning over. I have replaced the spark plugs and have gotten spark to the distributor cap. When I push the choke out I can hear the gas being squirted. The problem is, besides it not running, is that is it killing my batteries so quickly. I have...
  11. M

    1987 170 HP Mercruiser...Cranks but doesn't Start

    Hello, I am very new to the boating world. I bought the manual for this engine, but have not taken the time to dive into yet. I wanted to get some pro advice first. I bought a 1987 Galaxy bowrider with a 170 Hp mercruiser I/O. It has been vaccum sealed and winterized for two straight years. I...
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