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    What year would this Merc 140 be...have SN

    4443117 is the serial number. It's in a Mark Twain, about 17' I'm guessing. For sale in the next town. Boat is cosmetically rough but seems to be structurally sound. Owner swears it runs and know of no MAJOR problems. Admits to some wiring issues and the obvious cosmetics. My brother would...
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    I need a little basic prop info

    I've got a 69 Formula 19' w/160 Mercruiser. My current prop is a 19P. WOT is 45-4700..but I very rarely run it there. Getting a skier up is no problem. Top end is around 35 if you can trust the 37 year old speedometer. The only thing that seems a little weird about the setup is that from...
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    Which gimbal bearing?

    I'm gonna replace the gimbal bearing in my 160 Mercruiser but I'm getting a little confused about which one to use. Mine is held in place by a snap ring. One place I look says the bearing for this type is no longer available and I need to replace with the newer style (housing incl) that...
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    Two weird things today

    First thing...My boat has the two ballast resistors (porcelain, ceramic?). They have a stainless steel bracket that surrounds them and becomes their mount. They are mounted on the same bolt near the flywheel housing. Today I had the boat idling on the muffs in the driveway before we went to...
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    Changing to one wire alternator...question

    The larger red wire that goes to the ammeter and a ground wire. Are these the only two connections? Is the alternator self-exciting?<br />Do I unhook and remove the old external regulator and wiring or just leave it? Any specific place the ground wire needs to go, or just to the block...
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    Charging problem..Merc 160

    My amp gauge always ran just a little to the right of center but the other day I saw it flickering back and forth and now it stays right in the center. Turn on some lights and it drops to the left just a little but doesn't come back. I took the alternator off and had it checked. It was fine...
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    Mercruiser 160 ran great...then stalled

    SN 2497444. Took it out for the first time today. Started fine at home, started fine at launch. Ran up river a little, ran great. WOT 4500..not so much as a sputter. Cruising at 35-3700..smooth as silk. Slowed down to talk to some friends on a pontoon and as soon as I got to 1500 it...
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    Questions about pulling a tube

    My boat is an oldie but goodie. 69 Formula F-190 w/mercruiser 160. It has had a prety easy life and is in good shape BUT it is almost 40 years old. I use it on the Missouri river..probably 10-12 afternoons per year. Some of the kids want me to get a tube to pull them around on. I initially...
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    Need a stereo mount/enclosure

    Where can I find a weatherproof enclosure in which to mount a stereo? The one listed on iboats is the same one that West Marine has in their catalog and all but one of the reviewers basically called it a cheaply built piece of junk...Plus..the thing is $60. I'd pay that if I had a little more...
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    Quickie spruce up for my outdrive

    I've made it to the end of my list of mechanical things to fix before the season so I started cleaning up my boat. Got it lookin pretty good but the outdrive (160 Merc) looked kinda tired. The paint on it isn't in bad shape but it's kinda chalky looking. I didn't want to go the way of a...
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    Online parts lookup source?

    Is there an online source where I see parts breakdowns and get part numbers for my 160 Mercruiser components? At the moment the part in question is the voltage regulator.<br />SN 2497444<br /><br />I checked iboats but it didn't seem to get any deeper than the alternator. Mine has an external...
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    Tilting outdrive then BANG...

    I was raising the outdrive when I heard the pump pull down a little. I thought it must be getting close to the top but before I could let off the button...BANG...one of the cylinders splits wide open...<br />What could have caused that? It's always worked great. Just one of those freak deals...
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    shift cable moves freely..still no reverse

    160 mercruiser sn 2497444. Unhooking the cable and moving it by hand, I can get it to lock into forward with no problem but can only get it to the verge of going into reverse. It's like if I could only pull the cable another 1/8 inch it would go in. You can hear the gears touching as you turn...
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    Am I missing a bolt here? pic

    I'm having trouble getting my 160 Merc (sn 2497444) to shift into reverse. At my nightly head-scratching session I noticed this place in the linkage where it looked like there had once been a bolt. Just to the right of the lower of the two studs that the linkage hooks to. What gives? I...
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    Mercruiser 160 trim problem

    1969 Mercruiser 160 SN 2497444. It moves down but won't come up unless I cross the two big posts on the solenoid mounted beside the trim motor. The switch checks out ok and I removed, cleaned and tightened all the connections pertaining to the trim. Does this mean it's the solenoid? If so...
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    Was there ever a Merc 140 6 cyl?

    Why I ask is..when I bought my boat last summer the original owner said. "It says 160 on the outdrive but it's really a 140". I didn't pay much attention to him but last week I was looking for a thermostat for it and came across a couple of books that showed there being a 140 (4 cyl) and a 140...
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    Is a Mercruiser 160 an oddball?

    I bought a box full of Mercruiser manuals at an auction sale the other day because one of them said something like "GM 4 and 6 cyl engines". I've got a 69 Formula F-190 with a Merc 160 so I thought I'd done good. Then upon further inspection, there is no mention of a 160 in the book. It has...
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    Fogging process

    I'm getting ready to do the winterizing process and have a question about fogging the engine. I understand what it's purpose is and how to do it but what product do I use? I don't have a marina close (1 1/2 hr drive) so I'd like to use something that's available at an auto parts store or...
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    Merc 160 doesn't want to go into reverse

    I get lots of grinding sounds when trying to get my 69 Merc 160 (SN 2497444) into reverse. It doesn't seem to matter how quickly I try to engage it either. The idle speed is 700-800 and it drops into forward quietly and easily. I've moved the lower shift cable up and down in the slot and I...
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    3.5 volts at + side of coil......problem??

    Maybe I spend too much time here. My boat (69 Mercruiser 160, SN 2497444)starts and runs fine (at the moment,knocking on wood) but I read a post where someone said you should have about half of your battery volts at the coil so while fooling around with it tonight I checked and only had 3.5. I...
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