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  1. rothfm

    Crankcase head assm? and compatibility 1993 johnson 115

    Hi all, Whenever I write, seems like a book--Sorry, pretty simple questions really. Took my powerhead off to place on a clean freshwater lower housing/swivel/bracket/tnt...My steering was so rusted, so made sense. When I took off the Phead (it runs great). I noticed the Lower Crankcase head...
  2. rothfm

    Anchor winch/windless for 20" walkaround?

    I have no knowledge or experience with these devices. Hoping someone who actually does in this type boat can wiegh in. I fish mostly Solo, saltwater in New England waters. I would like to stay off the bow most of the time when anchoring(usually choppy waters). I am interested in the ability to...
  3. rothfm

    Temporarily blocking the thru-hull opening for in-water trailer swap?

    Posting for a friend, I'm an outboard guy and have no idea. Friend found a terrific older Tiara Persuit 20'. The outdrive is removed/gone and the trailer shot. When he picks it up, a new trailer will be with him. He wants to float the boat, while swapping the trailer. Is this ever done? Can it...
  4. rothfm

    Thanks to the Forum (again). This is quite the place. A moment of reflection :-)

    I've been a member since 2006 but have to voice a thanks to all those the actively participate here. Its quite the helpful community. I was thinking this today as I fixed yet another motor problem, just by doing some searching and researching what others have documented. A special thanks to...
  5. rothfm

    Anchor Trolley for 21footer??

    I Spent a few years when out of work doing serious salt-water offshore Kayak fishing. Loved it. Now, with my 21' walk-around (have been boating all my life), I also spend most of my time Solo fishing offshore. On the Yak, I had a nice anchor trolley I made to easily drop the anchor from...
  6. rothfm

    Bilg pump that gets close to boat bottom

    I have a 21 walk around with an old bilge pump. Not sure what it is as its tight down in there. Buts its HUGE, and doesnt pump close to the bottom. I dont get alot of water (some thru a back hatch to be replaced) but when I pump, it never gets down to the bottom. Is there any types/brands that...
  7. rothfm

    Trailer hit while parked at ramp lot! Whats with people.

    GEEZE, I"m probably not the first....But still PO'd. Out having a nice day on the water fishing. Came in to find not only the trailer light broken, but the steel back plate welds broken too-and hanging. I didnt notice the hit pulled the screws out of one of the bunk boards. So when I backed in...
  8. rothfm

    Real life experiance In hull vs transome mount transducer

    Does anyone have any first hand valid experience with In-Hull mounting vs transom? I need to know how much signal loss you might have suffered going thru the hull, and what you preffer and how you use your unit. Here's why I ask: Just put in a Humminbird 587ci HD with down imaging. Very...
  9. rothfm

    Is there a happy Prop medium? specs included.

    Experimenting with props. Spec's below. Original prop runs good. WOT is in range, hole shot good. Speed not bad. I'm looking for a bit more speed so I can back off the throttle for cruising speed(is this possible?). Currently I'm "crusing" at about 5k rpm which seems high. Curious If I can...
  10. rothfm

    Crossflow no water out relief holes at plane speed?? really need advice.

    Can can anyone tell me the path of those relief holes? I understand the impeller path and have the OEM diagram. What happens with the relief holes/path/poppets? Really looking for input, as i've been working this cooling issue awhile. 1993 Johnson 115 bubbleback. My issue at the moment is no...
  11. rothfm

    Help with Carb rebuild. Pics & questions.

    Never rebuilt carbs before, have a bunch of questions if someone can help. 1993 Johnson 115. Got a pic of a tube that appears broken off in a carb, maybe explains my lean sneeze? I Swapped carbs with another motor to prove sneeze was carbs--it was. Brought the carbs inside and noticed one of...
  12. rothfm

    crossflow 1 3/16 carbs vs 1/516's...fixed my lean sneeze..but difference??

    1993 Johnson 115 bubble-back. I read alot of posts about Lean Sneeze--and good descriptions by ENDSmapper---Thanks to all who take the time to explain!!! I diagnosed mine by swapping in another set of carbs to see what it would do. Immediately it ran smooth, and idled down good, big difference...
  13. rothfm

    1993 Johnson 115 measuring head temps with IR gun?

    Hi, I believe I'm ok with appx 135-145 shooting around the head covers and heads. Some places down low are 115-125. But mostly I see 135-145. But, If I aim deeper toward the inner/back of the piston area...I can see temps in a couple spots at 150-161. Is this normal, if the areas around and on...
  14. rothfm

    Rustoleum as Bottom paint on Trailered boat?

    Hi All, I've seen a couple people talk about Rustoleum (regular type) on Boat bottoms. Was wondering how it was used, over what? and tesults. My Needs: Trailer exclusively. PO already painted and it looks ugly. Dont want to go thru the cost and work of full strip or repaint with expensive...
  15. rothfm

    More Coil/Powerpack questions 1984 Johnson 115

    My motor has a mix of coils in it (posted before) from PO. Am I able to use the "newer" style 2-post Coils and the Powerpacks from my 1985 parts motor?? The pn's for each are different, and from what MarineEngine.com and ********** show, I'm not sure about any compatibility. The Manuals show...
  16. rothfm

    Listing/sticky of alternatives to omc sealants?

    Could swear I saw on here, a brief chart of possible alternatives to the list of OMC sealants and gels etc...Want to look at that if someone can help me find it, of might have it handy. Gotta begin obtaining some items. Thanks Mark
  17. rothfm

    Rggg, I usually dislike compatibility questions....But here's another Sorry. '84 115

    Been using the BRP, Iboats.net charts...and dont really have an answer to this. I've looked at the charts in the sticky too. Rebuilding my '84 115hp. I believed spare lower unit I already had would be a match. Its a 1993 25" (same length of both). I test slipped it onto the Exhaust housing on...
  18. rothfm

    pics of mismatched coil setup on motor I'm rebuilding, what the heck?

    moving toward the ignition portion of my rebuild...'84 J-115. When I took it apart I didnt notice this: I have one coil Different that the other 3! And the oddball was in the same position that had a bad Cyl...This may/may not be a culprit-but weird. I acquired the motor. I have 3 pn 582107...
  19. rothfm

    Did I damage my stator during flywheel removal? Pics

    I just looked at my stator on the bench and hope I didnt damage it. I have my '84 115 apart for rebuild. When I removed the flywheel looks like I might have gone in with the 3 bolts a bit too far (I knew this about removal and thought I was careful). I just happened to peek at the stator today...
  20. rothfm

    sizes/specs of Fuel and breather hoses on Crossflow? Change to Silicon or another?

    Hi, I want to replace all the rubber lines on the motor while apart on the bench (115 1984 Johnson). I couldnt find the specs in the OMC manual. Does anyone have them? Or I'll take some to the store I guess. These are the carb lines, and recirculation lines. Was also interested if generic...
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