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    Trim Pump Fluid

    I recently had the joy of tearing apart my 1969 Starcraft Mercruiser 120 in order to replace the trim limit switch. All in all, the tear down was way past due as seals and u-joints needed to be replaced anyway. So in the end it was a good thing. That said, I had to remove the rams during this...
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    Mercruiser 120 G1 A1 - Transom Seal

    Yes, I suspected some hyperbole was in play. I'm not sure where a point if failure may exist however I can take a guess or two where water could maybe get in. So I will use some RTV around those areas to enhance the sealing. Thank you for your useful/helpful information.
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    Mercruiser 120 G1 A1 - Transom Seal

    Thank you for the information. Kenny Nunez stated the switch fails in about one year. I don't think a one year old switch would be considered old, but I've been wrong more than once today.
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    Mercruiser 120 G1 A1 - Transom Seal

    Thank you for that info.
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    Mercruiser 120 G1 A1 - Transom Seal

    Any thoughts on what causes the switches failure?
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    Mercruiser 120 G1 A1 - Transom Seal

    On this particular outdrive, the trim limit switch is located in the top of the gimbal ring. The only practical way to replace this switch is to remove the gimbal ring. This turned out to be an adventure resulting in the complete removal of the outdrive from the stern. That said, I am now in...
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    Mercruiser Engine ID - No serial number

    Thank you very much! This will be incredibly helpful.
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    Mercruiser Engine ID - No serial number

    Cool, so it's either a 91 or 2001. Thanks for the info.
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    Mercruiser Engine ID - No serial number

    My block number is 1M10082RQ. I'll grab some casting numbers off the block and see if I can discern any dating info there.
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    Mercruiser Engine ID - No serial number

    Actually, I was thinking there may data in the code that hints at a year. I've decided to fabricate a throttle linkage.
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    Mercruiser Engine ID - No serial number

    Here is a picture of the location.
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    Mercruiser Engine ID - No serial number

    Out of curiosity, what is the sequence of characters on the horizontal surface of the block directly under #2spark plug?
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    Mercruiser Engine ID - No serial number

    I thought about it but decided the topic was different enough to warrant a separate thread. Your remarks are duly noted and will applied going forward.
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    Mercruiser Engine ID - No serial number

    Ok, got some more pictures of the engine.
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    Mercruiser Engine ID - No serial number

    Yes, the carb has one idle screw on the base. I don't have a good full shot of the engine, however digging through the images I do have I found this image. It's on the starboard side of the engine between the distributor and block. I suspect this is some lot number for foundry where the block...
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    Mercruiser Engine ID - No serial number

    I found a rebuilder that has a couple of 15397's in their inventory but no info about year was listed in the description.
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    Mercruiser Engine ID - No serial number

    Yeah, this whole beast is a series of contradictions.
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    Mercruiser Engine ID - No serial number

    I have looked everywhere from the starboard side around starter to under, back and port side. There is no tag or serial number to be found. The boat is a 69 Starcraft Starchief with a 1969 outdrive (serial number on outdrive indicates the year). I was having problems trying to rig up the...
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    69 StarCraft throttle linkage

    Awesome! Thank you Scott. These are two different examples, and by process of elimination I can say neither one of these is what I have. The mount for the throttle arm/lever is further forward and bolts lower and into the manifold. But this is very helpful none the less. I guess I am looking...
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    69 StarCraft throttle linkage

    For the purpose of the photo, I have positioned the actuator rod to be in a relatively close position to where I suppose it would be. It's merely hanging off the carb linkage. In the current photo, I have the cable hooked with the adjustment barrel all the way forward and even at that there...
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