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    Bilge float switch wiring question

    I just purchased a pontoon boat with a mercruiser 3.0 . There is a waterline inside the motor pod, up to the alternator. I know this is not good. I decided to investigate the bilge float switch. To my dismay, it was bypassed and totally disconnected, bilge works off switch on dash. I found float...
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    Outboard tank parts

    I want to rebuild my mercury 6 gallon tank, it is a 70's vintage. I need gasket and site glass and glass rubber, Does anyone know where I can get these parts ?
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    Merc 850 with jet pump not getting full rpm

    I have touched on this in the past but have new infomation and felt best to start new thread. I have a 73' Merc 850 with a jet pump. I recently added a tach to verify motor performance. I have been through link and sync proceedure and everthing seems hunky dory. Motor idles around 650 rpm...
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    How do I find my posts

    How do I find all my posts ? I want to check on some topics, but have not been able to find them via search. I saw a "my posts" button once but have not seen it in a long time. I know I could subscribe to threads, but that does'nt help me find earlier ones I am not subscribed to. Thanks
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    Urgent; Carburetor floats

    I am rebuilding 2 carbs from my 73 merc 850, one of the floats was stuck to bottom of bowl. Finally got it out, cleaned rod and blew out float. It does not slide on post. Other float will slide on it. I have a donor carb from a 71-ish 65 hp merc, float is the same length and diameter but...
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    73 Merc 850 Carb removal

    I almost feel silly asking this, but here goes. I bought 2 carb kits to rebuild the carbs. It looks daunting to get to them. I am in the process now, and I want to remove the coil wire and maybe the coil too. Does the coil wire unscrew from coil ( I beleive it unscrews from cap), do I need to...
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    Rectifier Upgrade

    I have a 73' Merc 850, tach not working, it is wired properly. The rectifier is rectangular shaped. I Also have a 72' merc 800, it has a different rectifier that is square. Is there an upgrade, or aftermarket ( possibly the 72 was upgraded?) for the rectifier ? I have 3 spares from part motors...
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    How low is too low compression

    I have a 96' 15 hp merc 2 stroke motor, ( came with a boat purchase). It has low compression on both cyls. 50 and 55 , I can not get it to fire of course. I am getting spark and fuel, but without compression I think it will not run. My thinking is I have stuck rings, if i could get it to run I...
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    1965 9.8 Merc overheating

    I have exhausted previous posts looking for this, not satisfied, so here is my question. I have a 1965 Merc 110 9.8 HP motor. It runs great for 5 minutes or so, then starts to get hot. Tattle tail stream is intermitent at times. I removed the flush plug on bottom of pan and good water flow...
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    Steering/torque

    I have a 85 HP merc with jet pump on a 16' starcraft, recently purchased. When I got the boat the steering was so stiff I could'nt steer it. I freed it up and now when under way the steering wheel wants to go hard left ( or is it right). If I let go of steering wheel it would be a dangerous...
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    Plain vanilla crossflow ?

    In the link n sync text, the terms "plain vanilla crossflows" tells me i have a limited vocabulary. How do I know what I have? The timing sticker on my engine says max timing 27 btdc. Link proceedure says; "The next adjustment is max advance, this is the point where the distibutor (or trigger)...
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    what year? badges dont match

    remove
  13. S

    Sierra ignition parts do not fit

    I am getting increasingly frustrated, I bought new sierra coils, points, and condensers. None of it fits properly, I bought the right parts, made the coils fit, after some modifications, now the points do not fit at all. Has anyone else ran into this ? I am a machinist by trade, The fit is not...
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    merc 9.8 grease vial

    I bought a tune up kit for 9.8 merc, there is a smal vial of black grease, is this for the cam or something else ? Thanks again
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    Merc 9.8 flywheel clearance

    I just installed new coil assemblies on my 65' merc 9.8. The new coils clear just barely ( .005" or less ), is this o.k., ? They are seated all the way back. Thanks.
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    Merc 9.8 weak spark?

    I have a 1965 merc 9.8 , good compression, spark, rebuilt pump & carburetor, new plugs, filed & gapped points. It will not fire. It started and ran for 30 sec - 1 minute then quit. will not start even when I squirt gas in the cylinders. I suspect weak spark. Is there any remedies for weak...
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    merc 9.8 no fire

    I AM STUMPED. I have 1 1965 merc 110 9.8 hp motor good spark, good compression ( 110, 115), Will not fire . I squirted gas in each cylinder and all I get is a weak cough. plugs are gapped .025 and points are .020. This thing should run.Help !
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    Link and sync

    I'm back. trying to start over. Motor is a 73' merc 850 ( ser.# 3495920). I recently aquired, have triple checked tdc, pulley/flywheel alignment. It is right. Compression is 140 on all 4 cyls. Max timing was set around 34 Deg. My spec is 27 Max. The spark adv screw is not long enough to stop...
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    re; Heavy oil residue in exhaust

    OK, it's been awhile since I posted about heavy grease or residue in jet unit exhaust. I was convinced it was bearing grease. I just now got around to doing something about it. I pulled the jet unit and can see heavt residue all the way up the exhaust tube to bottom of block. Motor runs well...
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    Heavy grease in jet unit exhaust tube

    I have a Mercury outboard jet (1973 85hp) , the exhaust tube was dripping thick liquid. I looked in the exhaust tube and the entire pipe has a 1/4" deep puddle of grease in it. What the heck is this? I want to say it is bearing grease from the bearing. Could the seals have inverted and dumped...
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