Recent content by nailem

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    Surge to electric over hydraulic low cost conversion

    I have an 05' Boat Mate dual axle trailer with typical surge brake set up on one axle with disks. I only tow a couple times a year. one 1200 round trip and one 800 mile round trip. the surge brakes work fine but I have the typical surge brake problems. The trip I just got back from was to a lake...
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    5.7l Black scorpion hard start

    I have a 05' centurion wit a 5.7 black scorpion. toward the end of last season it would occasionally not want to start right away. this year it was fine the first few times out but then started its hard start problem. then the other night it just cranked and cranked but didn't even sputter. I...
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    water separator with bowel on the bottom

    has anyone used one, what do you think, are they worth the extra $$?
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    ECM 555 problem

    I have a 2005 5.7 black scorpion. i bought it knowing it had some issues. i replaced the tuliped valves in #1 and #7 cylinders, replaced cracked distributor cap, and replace bad alternator. when i bought the boat the warning light and buzzer would sound every minute or so, even when not running...
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    tach not working on black scorpion

    i have a 2005 5.7L black scorpion serial number 0M398298. i got the manuals off this site but am having trouble finding what i need. the tach is not working, wires behind tach are good. as far as i can follow the manual the tach is on gray/wht off the ECM on pin A10 (on page 3a-3) the only...
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    sea water impeller part number confusion

    i went to a local marina and told them i needed a sew water pump impeller for a 2005 5.7L black scorpion. he gave me part number 47-59362t 1. the number i see posted on line is 47-862232A 2. the one i got from the marina does not have a O ring. any one know which one is correct???
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    zero compression one cylinder 5.7 Black Scorpion

    I just bought a boat knowing that one of the cylinders has zero compression. it is a 5.7 Black Scorpion with only 130 hours on it. all other cylinders have 150-160psi i pulled the rocker cover off and valves are moving up/down tried to bump the motor to were i though both valves were closed...
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    5.7 black scorpion question

    i cant find the manual for the 5.7 black scorpion. i need to know how remove the plenum. i have removed the bolts from the top and it looks like there are two nuts on front, bottom side. is that all or am i missing something? will i need to replace the gaskets or will i be able to reuse? thank you
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    3.0 hard start when hot

    I just bought a 2002 Auquatron with a 3.0L Mercruiser. It starts instantly when cold but after it has been run it is very hard to start, you have to give it some throttle and it still cranks forever before firing. I guess i shouldn't say hot even if it has sat for 30min or so same problem. when...
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    Question about "no feed back" steering on an I/O

    i am looking at buying my brother-in-laws 18' Aquaton. it has a 3.0L and alpha 1 gen 2 drive. there is no power steering and from being out on it last year after a full day of tubing ans skiing it does get old. I was looking at power steering options and it sounds like hydraulic is expensive...
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    buying new prop going from alum to ss

    history: 1986 20' sunrunner with a 5.0l alpha 1 gen 1 drive 1.5:1 gears. 4600-4800 tarket rpm all rpm is verified with a digital tach i have tried a 17p cant remember diameter 3 blade alum 4000rpm current set up is a 14.75x15 4 blade alum turns 4600rpm solas amita4 i would like to try a ss...
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    home made alignment tool

    i have an old drive shaft with good splines. can i take it apart at the universal an weld a longer handle on it an use it for a alignment tool? if so would i need to make a stop on it? if not why not?
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    need the help and support from my friends here

    The upper gear set in my alpha one gen 1 broke. some of the teeth cracked. i was out and running about 20-25mph and heard a thud then a thud thud thud from the drive. followed by the smell of gear lube. i have another thread with the full story. but the long and the short of it is it turned it...
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    thud from motor or drive while in neutral (pics added)

    86' sunrunner 5.0l merc. alpha 1 gen 1 went out to watch the fireworks last night, boat started fine and ran fine idle through the marina and a short 10min half throttle run. back to idle and floated for a few minutes to see if i wanted to stay were i was at the a started to hear a thud. it...
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    looping idle

    1986 4bb Rochester merc 5.0L. what do i need to adjust? my idle seems to ok for about 30sec to 1min then it starts to loop is the best way i can put it. it goes up and down from about 500rpm to 800rpm up/down up/down. any suggestions?
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