black max 150 trouble

willy · #1 08-23-2005, 08:18 PM

HEY BIG SHRIMPIN AND REELAPEELIN HELP :'( I GOT A 1992 150 BLACK MAX THAT'S CRUSHIN MY NORTONS. TWO WEEKS AGO I'M ON THE WATER MOTOR RUNNING NORMAL, GOT BACK CLOSE TO HARBOR (THANK GOD) IDLED NEAR INLET FOR MINUTES WAITING FOR A BIG FERRY TO PASS, WHEN I TRIED TO ACCELERATE IT WOULD STUMBLE JUST BELOW 2G'S AND WAS IDELING POORLY. WOULD NOT LET GO PAST THAT AREA ENGINE WOULD DIE. I ALONG WITH MY FRIEND GOT IT INTO DOCK AND WORKED ON IT FOR AN HOUR. HAD FUEL COMIN THRU IN LINE FILTER WITH A GOOD SQUIRT. CHOKE WORKING GOOD. SPIN ON FUEL FILTER REMOVED DUMPED ALL LOOKED GOOD INSIDE. SQUEEZE BALL KEEPING IT'S ERECTION. MOTOR ALWAYS HAD A LITTLE STUMBLE WHEN YOU WOULD FIRST START OUT THEN RECOVER QUICKLY AND RUN LIKE ZUESS. IT WOULD START EVERY TIME . TOOK IT TO THE LOCAL MERCURY TECH EVERYONE SAID WAS GREAT. HE HAD BOAT FOR A FEW DAYS SAID I HAD NO SPARK ON TWO CYLINDERS SAME SIDE. STATOR WAS BAD AND SWITCH BOX. ALSO

willy · #2 08-23-2005, 08:24 PM

THE TRIGGER WIRE INSULATION WAS DECAYING. REPLACED ALL SAID I HAD GOOD SPARK NOW AND MOTOR WAS RUNNING GREAT. COMPRESSION WAS ON LOW SIDE 104 - 110 ALL 6 BUT HE SAYS THAT WAS STILL OK FOR MANY MORE HRS. TOOK WIFE AND KIDS OUT AROUND THE HOOK YESTERDAY GUESS WHAT. RAN GREAT FOR AWHILE AND DRIFT FISHED A BIT WENT TO MOVE ACROSS CHANNEL AND ITS DOING THE SAME THING AGAIN :-[ :-[ :-[ GOT IT TO FINALLY GET ABOVE 2G'S PLAYING WITH THROTTLE AND MADE IT HOME I GUESS THE FIRST $1000.00 WAS'NT ENOUGH NOW HE'S GOT IT AGAIN ANY IDEAS

Skools Out · #3 08-23-2005, 08:49 PM

lol spend the next $1000 on another power head and take off the oil injection.

willy · #4 08-23-2005, 09:01 PM

HEY SKOOL, I HEAR YA BUT THE SAD TRUTH IS I AM NOT SAAVY ENOUGH TO REPLACE A POWER HEAD MY SELF. AND CAN'T AFFORD TO EITHER. THIS IS SOME GLICH TYPE OF THING CAUSE THAT MOTOR RUNS STRONG ALL THRU RPM RANGE BEFORE THIS PROBLEM AND I NEED TO GET AS MUCH LIFE OUT OF IT AS POSSIBLE

phester · #5 08-23-2005, 09:09 PM

Hey Skool, you seem very well versed in outboard trouble-shoot and repair, so I'm gonna ask you for any feedback/comments on my outboard.It's a 1993 150 Oceanrunner [looper, or loop charged V6] is the VRO system is as reliable as they come, or am I just rolling the dice everytime I start it up? I've heard years of trouble-free operation and i've heard of cooked powerheads as well. Whatta ya think?

Skools Out · #6 08-23-2005, 09:25 PM

um my fav kind to fix are J/E Loopers. I've opened i would say 10 to 15 loopers in the last 2 years due to oil injection. Here's the scary part on OMC oil injection. The grey wire that goes into your fuel/oil pump it the wire that runs your tach. So a good rule of thumb is as long as your tach is working your oil injection is working. But if your tach should ever stop working shut it off ASAP. The tach is run out of the voltage regulator / rectifier. If it were to quit in the ocean and you couldn't get home to keep from cleaning out the gas in the line till you had mixed in the motor you can hook the grey wire going to the regulator to the yellow / grey on the regulator and that will run the tack and the oil injection but add oil to the tank to get home on. It the tack still doesn't work your regulator isn't charging the battery.

willy · #7 08-23-2005, 09:56 PM

ANY THOUGHTS ON TROUBLE SHOOTING THE MERC SKOOL ?

phester · #8 08-23-2005, 11:38 PM

thanks skool,appreciate the input...the OMCs may not be the fastest motors out there,but, they are true, reliable workhorses.

reelapeelin · #9 08-23-2005, 11:50 PM

Guys, I've said it before(probably more than everybody wants to hear)...early OMC VROs are waitin' to BLOW your motor...$hitcan that VRO and get a mixin' bottle...it ain't as painful as it sounds...lot less pain than LOCKIN' one up!!... :o :P :o :P...

Oh yeah...and Merc used a plastic drive gear of some sort on their auto-oiler... :(...I've personally seen THREE of those fail and COOK an otherwise perfectly good motor... ::)...

MIXMIXMIXMIX...................................... .... ;)...

Skools Out · #10 08-24-2005, 12:30 AM

Yeah i know of 5 or more Merc's that have lost oil gears. The problem is as long as the gear is turning any the alarm will not sound. say it's missing a few teeth and is not turning but off and on and not pumping the oil as needed it will not alarm you but will still mess up the power head just a slow painful Merc death. Would never suggest the oil injection on a Merc for sure but i don't use it on anything. If the alarm goes off on a Merc it's too late. The motor has already run reg gas in it.