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  1. trebot

    '04 15 hp spark plugs

    The NGK site calls for BPZ8HS-15 plugs. Motor has BPZ8HS plugs installed and gap at .040. 2 questions: What does the " -15 " mean? Motor data calls for .060 gap. I've never seen a plug gap this wide. Should I stay with the .040 gap or go .060?
  2. trebot

    '04 15 hp shifting

    Just got an '04 15 hp. When shifting into reverse, engine speeds up before going into gear. Is there an online service manual available? Thanks, Kurt
  3. trebot

    1954 15 hp Evinrude compression

    Does this motor (15012 - 23506) have a compression release feature? Seems hard to turn over or I'm just getting old. Motor fires on shooting fuel into the carb, but won't keep running on its own. I think its a fuel issue, so I need to get back into the carb
  4. trebot

    50's Evinrude 15 hp magneto cam

    Have barnfind '54 Model/Serial 15012 - 23506. Someone has been into top end (magneto area), and I' m not sure how to put the cam / key / flywheel back together. Have straight bore cam w/keyway which slides over non-taper portion of crank. It sits below crank keyway against the crank bearing...
  5. trebot

    Looking for an inflatable.

    Looking for inflatable that can be broken down to fit in our Motor Home storage compartment. Does such a boat exist? Please educate me. Thanks, Kurt
  6. trebot

    '54 Evinrude 15 hp compression

    Tried compression test on my barn find. 0 on both cylinders. Is there a compression relief on this motor? If not, guess next step is check head gasket. Any thoughts?
  7. trebot

    Evinrude 1955 ?

    Have a vintage Evinrude (barn find). Shroud says its 15 hp. Serial # 15012 ------ 23506. I think the 15012 is model number. Where can I find out for sure? Also a parts source. I have dealt with an outfit in Washington state for vintage parts, but I don't have their contact info. Thanks...
  8. trebot

    3.0 valve lifters

    Motor runs fine, but has noise coming from rear portion of engine. Sounds like valve train. Every once in a while, seems to drop a cylinder then picks up and runs fine. I'm thinking I've got weak lifters. Sound reasonable? Is it a good idea to replace lifters and leave original cam in place...
  9. trebot

    3.0 knock

    Have knocking sound coming from rear of engine. Gets louder the quiets down. Motor runs fine except for knock. Good oil pressure and temp. Pulled distributor, everything looked fine Ran motor with valve cover off. Every thing looked good, good oiling. Don't think its a rod knock as the...
  10. trebot

    3.0 gaskets

    Was the 3.0 used in an automotive application? Looking for valve cover gasket and hope I can go to Auto Parts store. Need automotive application to find parts.
  11. trebot

    ELECTRIC SHIFT

    Looking to re-power. Is there any reason to stay away from electric shift motors
  12. trebot

    TIGERSHARK bad rap

    I know very little about PWC's but I've heard TigerShark gets a bad rap. True and any reason for it? Thanks, Kurt
  13. trebot

    Oil 3.0 140hp

    Have '86 140hp 3.0 motor. Motor is tight ( 150# compression and 40# oil pressure ). Manual calls for straight 30 or 40 weight oil. Getting hard to find straight grade oil in my brand (Quaker State). Can I used 10w30? Thanks Kurt
  14. trebot

    '73 model number

    Looking to buy boat ('73 Glastron). Boat in Michigan, I'm in Florida. Trying to determine what motor / outdrive on boat. Owner knows little about the boat , but did give me "Volvo Penta b20aq130". That mean anything to anyone? Thanks
  15. trebot

    140 hp distributor

    Have an '86 3.0 140 hp. Service manual says either Delco or Prestolite distributor and they have different point gap settings. How can I tell which Distributor I have? Thanks, Kurt
  16. trebot

    3.0 alternator bracket

    Have '86 3.0. The alternator adjusting bracket broke just in front of where the adjusting bolt is. Its the slotted section. Broke first on top and then on bottom portion. The bolt mounting to block snapped off, which I replaced. Thinking of putting fiber washer between alternator and...
  17. trebot

    Alternator low output

    Have a 140 mercruiser with a 3 wire alternator. Was working fine (14v) output. Disconnected all wires to remove alternator to access other work on motor. Reinstalled alternator and now only get 11.5 volts on voltmeter. It is charging, but not at former output.
  18. trebot

    140 oil filter

    Like to know a FRAM or PUROLATOR oil filter number for '86 140hp Mercruiser.
  19. trebot

    140 alternator

    Have a '86 Mercruiser 140 hp. Disconnected wires from alternator. Apparently it has a voltage regulator on rear. Reconnected wires and now only get 11.5 to 12 volts charging. Previously got 13+
  20. trebot

    Larson fuel tank size

    Have an '86 17' Larson bow-rider.IO. Any ideas as to fuel tank size?
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