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  1. juicebronco

    470 side panel gasket

    83 470, noticed oil leaking down at the rear of the side cover. The one located below the carb above the fuel pump. I can't seem to locate the part anywhere. Anyone have any advice? Part number 27-68706 Also, any tips on doing the work? I've been searching for a while, but didn't find...
  2. juicebronco

    66 Big Twin won't throttle up, Carb Issue I believe

    So this summer I picked up an Evinrude 66 Big twin model 40652B. After rebuilding the carb and replacing the fuel pump I got it running. I can start it, it idles fine, and can drive around at low speeds no issue. However, when I try to get on plane it starts to rev, then the rpms come back...
  3. juicebronco

    66 big twin carb either flooding out or not getting any fuel, no in between

    So I picked up a 66 40hp big twinn model 40652b. It was flooding itself out when I was trying to start it, so I ordered a carb rebuild kit and a new float. I disassembled, cleaned, and resembled with new gaskets, needle, float, and set the float according to the instructions. Now I can't...
  4. juicebronco

    66 Big Twin starter bracket bolts?

    So I picked up a 66 40hp big twin model 40652b, and I'm working on getting it running. Upon getting it to idle briefly, I noticed gases coming from the holes in the starter bracket, and to me it sure looks like there should be some bolts or screws in there. I'm having trouble figuring out...
  5. juicebronco

    Parting out merc 140 what to save?

    I picked up a 73 Silverline with a mercruiser 140 that is seized, I was wondering if there as anything on these motors that was nla and I should make sure to save? I'm parting it out, and figured there would be people looking for stuff off it. Thanks for any advice
  6. juicebronco

    470 vapor locking I believe need help correcting, Yes I've searched

    First let me say this was a motor I picked up that I don't know the history of, I did a bunch of work to get it going prior to installing it as a replacement to my blown 470. I have around 100 miles (no hour meter) so depending in speeds 5-10 hours is my guess. So I have an 83 470 that seems to...
  7. juicebronco

    Trailer swap question, can the boat be too small for the trailer?

    So I picked up a boat for the motor to replace the blown motor in my Century. I pulled everything off, dumped the boat, and now I have the trailer. The trailer under my fishing boat is too small, and I had been wanting to upgrade it anyway, so now I'm thinking, why not use this bigger trailer...
  8. juicebronco

    What 470 Parts to save

    So I had a piston rod go, and in the process took out the oil pan, block, and cam. I replaced the engine with one I got from a donor boat. I've disassembled the old engine, and was trying to figure out everything I should keep. List I know I should keep, -Manifolds -Exhast riser -Heat...
  9. juicebronco

    470 motor mount inspection?

    I'm installing a used 470 in my boat to replace the one that blew up. Obviously if I need to replace the rubber motor mounts, now is the time to do it. My question is, is there a good way to inspect/ test them? I've tried searching, and did find the info I was looking for. Visually they look...
  10. juicebronco

    470 Clean up cam shafts prior to speedi sleeves?

    OK so I picked up a donor boat for the motor, and after I got it running, I found it was leaking coolant out the weep hole. I tore everything down today, with no issues, and you can see how bad the second seal is. But my cam looks pretty beat up, so I was wondering about what the best way to...
  11. juicebronco

    470 fires when starter engaged, shuts down when ignition is in the run position

    I blew my 85 170MR and picked up an 83 470 to replace it. Trying to get it running, but it only fires while the ignition is in the start position, and cuts out in the run position. I was told this was the condition it was in when I bought it, but it wasn't even doing that for a while, someone...
  12. juicebronco

    470 wiring harness compatibility.

    So I blew by 85 170MR which we all know is a 470. I picked up a 83 viking deck boat with a 470 in it for $150 and I'm trying to get it running, to make sure everything is good to go prior to installing it into my boat. Who ever had worked on this thing in the past should be arrested. The...
  13. juicebronco

    Buying 470 with seawater piped to engine?

    So I'm looking at buying a boat for the engine, the Mercruiser 470, which as you know has the fresh water cooling system. Well I guess the heat exchanger was bad, and instead of spending all the money to replace it, he re routed the seawater through the engine. My question is, would that cause...
  14. juicebronco

    Heat Exchanger leak 85 mercruiser 170 repair?

    Boat 1985 Century with Mercruiser 170 freshwater cooling system. I've searched but didn't come across this particular problem. Took the boat out for the first trip of the year, and noticed water water was leaking out the back between the cap and the tube of the Heat exchanger It seemed to be...
  15. juicebronco

    Replacement hub for 67 merc 200 twin 20hp

    1967 merc 200 twin 20hp Serial 2249988 The hub is spun, and I can't seem to find a replacement hub locally. Are these parts still out there? Or am I going to need to replace the entire prop? I know it's an 8 spline shaft because I can count that high. Any help would be very appreciated.
  16. juicebronco

    Regulator/Rectifier, poor connection or just shot?

    85 Century Palomino 170hp 3.7L Mercruiser After doing some reading I figured my Regulator Rectifier was shot, I am generally only pulling 11V and some change while the motor is running at idle, underload over 1K rpm, and no load 1K rpm. I tested it with a meter as well at the batery and also...
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