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  1. J

    4.3L Oil leak Front Oil Pan... Again!

    The leak is back!!! I haven't posted in 2 years... boats been running perfect - until now!!! See this thread: http://forums.iboats.com/mercruiser-i-o-inboard-engines-outdrives/4-3l-oil-leak-front-oil-pan-area-460389.html I've been dealing with oil in the sump for the past 2 weeks! After...
  2. J

    4.3L thermostat or sensor?

    I need a little help - I have a 07 Tahoe Q6 with 4.3L Mercruiser ser#0W638393... open cooling systerm. Last couple of times last fall and again this week I intermittently got a warning beep (Continuous beeeeeeeeep) while cruising. A quick glance at the gauges showed no faults. good oil...
  3. J

    Help! Motorguide wireless trolling motor dead...

    I'm looking for a little help until I can call a motorguide service center Monday. While fishing I apparently overloaded the motor. I was rotating it and bumped into a log... it shut off. I disconnected the power and reconnected. When I reconnected I got a continuous high pitched sound and...
  4. J

    4.3L Oil Leak - front oil pan area

    I'm cruising for any info on oil leaks at the front of the 4.3L engine... I've been dealing with this leak all last season. Finally broke down and let my local marine shop yank the engine to find the leak. He started the engine on a bench and found oil leaking from just below the harmonic...
  5. J

    Seadoo ate a rope... what next?

    OK, my son just called - he ran over a ski rope. immediately shut off the engine. tried to pull the rope out but no good. Used a knife to cut the rope as close to the grate as possible. restarted the engine and labored for a few seconds. Shut the engine off and saw a few strands visible...
  6. J

    What's the difference between these fuel filters?

    Help, I'm struggling with a fuel starvation problem with my Mercruiser 4.3L... As part of my spring maintenance I purchased a new fuel filter/water separator - Mercury part# 35-802893T. Took the boat out and would cut out above 3800 rpm. Changed filter to 35-802893Q01 (knew that the filter...
  7. J

    Need help setting float level

    I'm confused by my manual... I have a 07 4.3 Mercruiser carbureted model with a 2 bbl Mercarb (I think). Engine Ser.# OW 638393, family - 6M9XM04.32VC (don't know what that means). The Carb Id is... first line - 866141001 (the first letter may be a 3) second line 34-6306. These numbers do...
  8. J

    4.3l mercruiser cutting out - fuel starved?

    Help! I have a 07 4.3L mercruiser with the carburetor engine. during winterization last fall I changed the fuel/water filter. First outing this spring the engine would not hold a speed above 3200 rpm. Started fine idled smooth as silk up to 3200 rpm. I could go full throttle for 30 seconds...
  9. J

    adding a SS prop - looking for perfection!

    OK, got a new to me boat last fall and sought the wisdom of this forum... came away with the perfect aluminum prop - a solas amita 4 - for my boat. Check out this thread: http://forums.iboats.com/showthread.php?t=355271 now I'm looking to add a stainless prop. my goal is to add one that will...
  10. J

    12 volt or (2) 6 volt?

    I need to buy batteries for a 12 volt trolling motor. The current 12 volt battery is dead, and I want to increase my trolling time. Should I buy (2) 12 volt batteries and run them in parallel or (2) 6 volt batteries and run them in series?
  11. J

    Looking for a recommendation

    OK just bought a (new to me) boat and trying to make it better. The boat is a Tahoe Q6 with 4.3l mercruiser... It came with a 21P aluminum 3 blade prop. I have data on that prop and another - a 24P Mercury Turbo. Here's my info 1. Year, make and model of boat: 2007 Tahoe Q6 2. Length...
  12. J

    Working on boat/prop comination

    I'm a new owner of a 2007 Q6. Previous owner had less than 30 hours on the boat and had to sell as part of a divorce settlement - bummer for him. Anyway, I've had the boat out three times now and still need some more time to calculate the correct props to purchase. First time out I had the...
  13. J

    trolling motor mounting plate for Tahoe Bowrider

    I'm looking for a mounting plate for a trolling motor on my Tahoe fish and Ski boat. I just bought the boat - previous owner had the trolling motor and mount stolen! I checked with Bass Pro Shops and found out that the quick connect plate (part# TR133039) is $300+ from them. Anyone out there...
  14. J

    Can 1957 mark 30 parts be found?

    OK, here's a really old one... 1957 Mark 30 ser# 1078767. Has been run sparingly last 20 years. But it does run! This fall it hit something in the water (log maybe) and the gears in the foot broke and cracked the housing. Wat are the chances of finding the gears and repairing the housing...
  15. J

    Need part # for Carb kit

    OK, I'm getting a little confused... I can't find a carb kit for this motor. Mercury Black Max 150 ser# 6455197. I think it is a 82-83 model. The Carbs have WH-27 stamped on them - maybe a (-1) on top carb. Can't see others. I've seen a lot of carb part #'s starting with WHM and numbers up...
  16. J

    Prop and boat setup

    I have recently purchased a used boat - and have reviewed hundreds of posts on the forums here on iboats... thanks - I have learned alot. so much so that I have been tinkering with the setup of my boat. I have a 1984 18' Champion with a 150 Black Max. When I got it It would run 49 - 50 mph...
  17. J

    Starter gear won't engage

    I have a Mercury 150 Black Max 1984 model... When I try to start it the gear on the starter shaft won't rise into the flywheel. The starter motor spins quite fast but does not engage the flywheel. I took the starter off then removed the nut and thoroughly cleaned and lubricated the shaft and...
  18. J

    Proper part number for water pump

    I have just purchased a 1984? Mercury 150 Black Max. Serial Number 6455197. Runs great! But I want to change the waterpump to enjoy peace of mind. I found a part# 46-96148T 8 on Mercury Marine's web site for a "Pump Kit, Water". On Iboats I found part# 46-96148Q 8 - Water Pump Kit. Am I OK...
  19. J

    Proper Motor Height

    I have just purchased a 84 Champion 19' bassboat w/ 150 Mercury... Got a good deal - it floats and it runs. 3 weeks ago I got it out on the lake for the first real play time. Top speed with 4 adults was 45 - 47 mph @ 5100 rpm. Since then I have read many posts on motor height... <br />Transom...
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