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    1973 mercruiser mc-1

    Ya there is play left to right. Also it was just under load going full speed the steering just gave out. Brand new rack and pinion steering installed so it has to be where it connects to the drive.
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    1973 mercruiser mc-1

    Hello, I have a 1972 mercruiser with an Mc-1. I replaced the rack and pinion steering this year and everything has been great until this past weekend. Under load the steering would come loose and I'd have zero control of the boat. Going slow it would work but as soon as I picked up speed it...
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    1972 mercruiser 120 hp

    Hi, I have a 1972 mercruiser 120 hp 2.5 L 153 ci with an MC-1. What prop should I be running?
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    1972 mercruiser water issue

    The motor was completely rebuilt so compression is great. I just ordered a thermostat as I took it apart and it doesn't have one. I just find it weird when I'm driving like even 15 mph it stays cool and as soon as I idle it goes hot
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    1972 mercruiser water issue

    Hi guys, I have a 1972 mercruiser 153 ci 2.5 L 120 HP. I've replaced the impeller in the lower end a couple times. I have a thermostat that just tells me the temperature of the engine. Usually sits around 160-180 when it's running fast but when I'm idling it likes to go to the red over 200. Any...
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    120 hp 2.5 L mercruiser 153 ci carb

    Ya I upgraded to electronic distributor. I'll meter the coil when the key is turned over and see if I have 12. Thanks a lot for your help.
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    120 hp 2.5 L mercruiser 153 ci carb

    Okay thanks. If I run a wire from the positive side of the ignition coil to the electric choke that would work correct? That way when the key is turned it's getting power. Also how should the actual choke be positioned, should I try dead center first? Or do I adjust it so it's 1/8 from closed...
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    120 hp 2.5 L mercruiser 153 ci carb

    Okay I'll look for some c44N online. Thanks for your help
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    120 hp 2.5 L mercruiser 153 ci carb

    Okay perfect ya just cross referenced and it looks like the bR6ES is the correct plug equivalent for 73 and below. Thanks. Maybe it's just the right plug and have to adjust the electric choke and the idle air screw.
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    120 hp 2.5 L mercruiser 153 ci carb

    I believe br6es is up to 1974 and after 1974 it's br6fs. Issue is I don't know if it's a 1972 or 1974 always thought it was a 72 Mercruiser
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    120 hp 2.5 L mercruiser 153 ci carb

    Perfect thanks so much. I'm using BR6ES right now. Should I switch to BR6FS?
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    120 hp 2.5 L mercruiser 153 ci carb

    Also my electric choke hasn't been working. It's a 1 wire but don't understand the grounding. Do I need to add a ground wire from the 3 screws on the plastic cover to the base of the carburetor? When I turn the key it instantly begins to heat up
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    120 hp 2.5 L mercruiser 153 ci carb

    Okay thanks so now that's the gold screw in the 3rd picture right? I'll tighten it all the way then back off 1.5 turns?
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    Mercruiser 2.5 L 153 ci 120 HP alternator

    Thank you I appreciate it
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    120 hp 2.5 L mercruiser 153 ci carb

    Hi guys I have a Mercruiser 2.5 L 153 ci 120 HP with a carburater I bought off Amazon. It has worked great for me but my spark plugs get pretty black and fouled and then it starts to run crappy after a while. Can someone point out the air/fuel idle screw so I can potentially adjust it to not get...
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    Mercruiser 2.5 L 153 ci 120 HP alternator

    Hi guys I have a Mercruiser 2.5 L 153 ci 120 HP. The alternator on it I believe is for a car engine and not marine rated. Can someone confirm with the picture below? Also if it is a car alternator could you potentially give me the proper part number for a marine rated one. Thank you
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    Prop shaft mercruiser MC-1

    Does anyone know what the model number is for a pre alpha mc1 mercruiser prop shaft?
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    Oil drain screw gasket lower end

    Hi guys, I have a pre alpha Mc-1 that I need a gasket/o-ring for my lower end drain hole. Anyone know the part number?
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    Seal on prop shaft gone

    Hi guys I have a 2.5 L 4 cylinder 153 CI mercruiser with a pre alpha mc1. My seal is gone on my prop, anyone know the part number or replacement part I could buy? Your help is appreciated. Thanks
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    1971 StarCraft holiday

    Okay ya I guess I’ll order the cable and the helm. Thanks for the help.
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