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  1. kramerpage

    1999 3.0L w EST ignition tach rises and fall intermittently

    This engine WOT is usually at 3800. Recently I noticed the tach displays plus 500 rpm like 4300. Also when going down the river at say 1200 rpm all the sudden it will display 2000 rpm. Engine starts and runs fine. Wondering where to begin looking for this issue. 80 percent of the time the tach...
  2. kramerpage

    1999 3.0L engine harness failure

    My plug set for engine helm has a bad connection. Engine dies when it gets moved around. Hove hose clamp on it. Has anyone used the male female molex plugs that have 8 inch leads and crimp connectors? I would like to try this instead of replacing entire boat/engine harness. Thanks
  3. kramerpage

    2000 3.0 L engine temp fluctuating

    Going on vacation Wednesday. Ran engine today at1000 rpm on hose muffs temp fluctuates to 190 then down to 160 and back up. Sea test today engine exhibits same symptoms. New exhaust flapper and impeller to weeks ago. Thermostat is original. It doesn't change if you are at idle or 3800 rpm on...
  4. kramerpage

    Engine alignment issue

    I removed mercruiser 3.0L motor and outdrive to have transom welded where it meets the bottom by drain plug. Re installed motor and cannot get it aligned. I did not move the nuts on the front mount which is down all the way. If I loosen the rear mount bolts I can almost get it right. My question...
  5. kramerpage

    Fuel filter locations for 2000 3.0L 2 bbl

    I'm getting a motor ready that sat for 6 years. I started it up with separate gas can w new fuel. I'm going to remove old gas from tank. Looking for fuel filter. Mercury parts site says there is one in the fuel pump and one in the carb. Can anyone confirm this? Thanks
  6. kramerpage

    Need instructions how to remove merc 2000 3.0 L Engine from Boat

    Hello all, Good to be back on the site and see some of the same folks from years back. I need to pull the engine to repair the transom in an aluminum boat. I tried the boatfix links and it just stays dark and search but many of the links are old. Thanks for any assistance.
  7. kramerpage

    1994 mercury 135 V6 warning horn alert

    while trolling last weekend my warning alert started an intermittent beep, beep sound at the helm. This motor has the oil injection blocked off kit using a 50 to 1 mix in the main fuel tank. The lubalert as mercury calls it or oil alert module is still wired to green going to coil #2, tan/blue...
  8. kramerpage

    1993 WMH 28 carb 135 hp

    Can anyone tell me what this part is? Some carbs have them and some not. Do I need them? Cannot find them on Mercury parts site. Thanks
  9. kramerpage

    1993 135 Black Max Twins stalling

    Last year they ran great. This year I have an increasing problem with the engines stalling. Scenario 1... port is forward and starboard is in reverse to enter slip at idle Scenario 2 both at idle and may run for 10 minutes fine and all the sudden on drops out and wont restart unless you...
  10. kramerpage

    1993 135 Black Max Twins Trolling question

    Hello, I use these motors to troll on Lake Erie at around 800 to 1000 rpms to troll while fishing. I only run one motor while trolling. I try to rotate motors to distribute run hours. I troll on weekends say 4 - 5 hours a day. My question is there any special spring maintenance that needs to be...
  11. kramerpage

    Merc 135 1994 Spark Plug

    Can someone tell me what plug to use? #0G001404 Thank you
  12. kramerpage

    1994 Mercury blown power head ( twins)

    Last weekend my port engine blew a hole in the side of the block. I have been searching for a powerhead and cannot find one. Its a 1993 manf date CXL 135 2.5L serial # 0G001404. I called Crowley, Mercury reman., and OBParts all stating there are none in stock. To repower with controls is 24K...
  13. kramerpage

    1994 Twin 135 HP Mercs Can they be silenced??

    The kids probably want them louder. Im used to I/O. These motors are loud. Can you insulate them? Why and or what is so loud in them? They run great. Lots of power but man the noise...Thanks
  14. kramerpage

    1994 TWIN 135 hp black max V6's switchbox failure

    My last trip out my port motor experienced a reduction of 1000 rpm at WOT. The marina checked compression and said it was great. They state they found a faulty switchbox. Replacement is 238.00 for part and 2hrs labor including troubleshooting. MY question is can a faulty switchbox reduce wot...
  15. kramerpage

    1994 TWIN 135 hp black max V6's Oil Pump block off parts

    So one of my motors has a block off plate and the other has the oil pump with hoses cut off and bolts stuck in them with clamps and wire ties. It looks like a disaster. I am trying to figure out what parts I need, to remove oil injection parts as someone else did to the other motor. My shop...
  16. kramerpage

    1994 135 hp black max V6 Battery Charging System Troubleshooting 40 AMP

    I do not have rising battery voltage when the motor is at 1000 rpm and above. I believe my first step is to check wire integrity from battery + to starter solenoid. From there to the pair of red wires to each voltage regulator. The pair of yellow wires going to the stator. Just to look for...
  17. kramerpage

    How to adjust the idle on 1994 135 hp black max V6

    How do I adjust the idle on 1994 135 hp black max V6. My tach says 1000 in neutral. I need to get it down to 700 - 800. 1000 seems hard on the lower unit to me. Thank you
  18. kramerpage

    lower unit or power head swap can it be done

    I looked at a boat today that had two different length motors on it. The original blew up from no oil. They replaced it with a shorter version. He said he would give me the original motor. So do you switch power heads and install old blown motor or switch lower units. I did not purchase boat...
  19. kramerpage

    1989 4.3L Alpha drive maintenance / inspection

    My marina has the entire sterndrive and engine at their shop. They give a discount to winter work projects. This drive has never given me issues in the 14 years Ive owned it. My question is this. How invasive do you get to "freshen up" a sterndrive? Leave well enough alone? This is a freshwater...
  20. kramerpage

    1989 4.3L Mondo alternator 55 amp repair / replace / freshen up / wow

    Well I have 1400 hrs on my alternator and thought as the cold winds blow. I should freshen her up. So I took it to Hite Rebuild to get it done. Thankfully I asked how much first. They quoted 187.00. I said I can buy a new factory Mercruiser one for that. So I headed out the door. This place did...
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