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  1. ScottinAZ

    Pooched fuel pump.... need replacement options

    my thoughts on this were even though its a carbed engine, 99% of the time, it will be sitting idle with the fuel in the float bowl possibly evaporated out. Getting it juice with the start circuit gives it a head start on refilling that float bowl and getting a good fire off without a lot of...
  2. ScottinAZ

    Lower shift cable.....

    You just made my day.... I saw that the hole was thru threaded, but had some "crap" in it. I ordered a tap to chase the threads, so that should solve my problem. I had been kicking my ass for the past few hours on how I could have screwed this up, then the realization came that most of the parts...
  3. ScottinAZ

    Lower shift cable.....

    ok. I have a 1980 vintage MC-1 outdrive, SN 5576434. The lower shift cable is done. If I go on Marineengine.com, using that serial number, I get a Sierra P/N 18-2157. However, If I go to the earlier schematics, I get P/N 18-2158 with a note that serial numbers up to 6225577 use the older style...
  4. ScottinAZ

    Pooched fuel pump.... need replacement options

    on mine I have just an oil gauge and no warning light. 12v from starter to coil, and then a resistor wire for the normal run position. Ill come up with something, its not an earth shattering deal to rig in an on/off oil pressure switch into the 12v side of the pump, with an alternate for...
  5. ScottinAZ

    Pooched fuel pump.... need replacement options

    looking at the electric as the preferred option. The fuel tank mounts on the port side of the engine bay, same side as the carburetor. Of course the mechanical pump is on the Stbd side, so you have the line crossing over behind the exhaust riser and then from the pump back over the top of the...
  6. ScottinAZ

    Pooched fuel pump.... need replacement options

    it figures.... I punched in the sierra and mercruiser numbers and got gibberish...... sometimes I really hate their site.... Thanks!!!!
  7. ScottinAZ

    Pooched fuel pump.... need replacement options

    Ok, engine is a 1980 120hp 2.5l. Fuel pump appears to be pooched, and is NLA through all sources I have seen. Not totally married to the idea of an engine driven pump, so looking for options. (Mercruiser p/n 86234A4 for the whole pump, or 49089A1 for the diaphragm kit). Sierra shows a 18-7278 in...
  8. ScottinAZ

    Cooling engine - direct water hookup

    if your outdrive is off the engine, I would disconnect the hose from the transom connector that goes to the engine (raw water supply line inside the engine bay). this is how I have it set up on my 120 at the moment, I have the outdrive off for servicing and this connects to the same point that...
  9. ScottinAZ

    engine control issue for Mercruiser 120 (MC-1)

    alright just a fast update for those that may be interested...... got some 1/4-20 coupling nuts about 3/4 inch long at the local hardware store this morning, flipped the side where the bolt head is, and buttoned it up. Got it mounted to the boat, and cables hooked up with no issues. New...
  10. ScottinAZ

    engine control issue for Mercruiser 120 (MC-1)

    ok, since I dont see a separate forum for the binnacle controls, its going to go here. If this is the wrong spot, mods, feel free to move it. Boat is a 1980 Galaxy V-hull, 16 foot with the Mercruiser 120 setup. Binnacle controls are Hi-Lex controls. Originals were shot. Wouldnt move out of...
  11. ScottinAZ

    MC-1 bellows clamp preferred locations

    Awesome. I have the #6 manual downloaded, but hadn’t checked it yet. Nice that it gets that specific. Clamps were indeed a 5/16 hex, at least on mine
  12. ScottinAZ

    MC-1 bellows clamp preferred locations

    perfect.... definitely not where the clamps were when I took it apart!!!
  13. ScottinAZ

    MC-1 bellows clamp preferred locations

    Don’t really have a “procedure” I’m following. Yours seems like it will work nicely though. Was mostly seeing where folks aim the hose clamps for access when tightening. Mine were buried at 12 o clock on the joint bellows and 9o’clock behind the water tube for the exhaust. Couldn’t see them...
  14. ScottinAZ

    MC-1 bellows clamp preferred locations

    Ok, normally I would just put the clamps back in the approximate place they were, but that aint happening. Even using the flexible tool to get to the clamps, most of them were located in areas where there isnt even access for that. Is there a preferred clocking on the clamps that while still...
  15. ScottinAZ

    Bellhousing pivot bolt issues....

    Got the buggers...... Autozone had a 1/2 inch allen that is 1/2 inch drive. kept the force much closer to the bolt, and heat did the trick. kept a bit of pressure on the breaker bar, and when the loctite released, they came out easy. Good thing I am doing this job, the bellows were SHOT, same as...
  16. ScottinAZ

    boat and trailer sit very low (to my eye)

    Ok, I think Ill start with flipping the axle. Its cheap, and hopefully the added inch or two will help the ground clearance issue. they like to make the speed bumps HUGE around here, and I dont feel like grounding the trailer on them. if that doesnt help, then a straight axle it is. As for the...
  17. ScottinAZ

    boat and trailer sit very low (to my eye)

    t The bunks need replacement, but the clearance issue is between the frame and the pavement. I only have about 6" between the low point of the trailer and the ground. Bunks will help get the boat higher, but wont stop the trailer from scraping on the small mountains they call speed bumps around...
  18. ScottinAZ

    Bellhousing pivot bolt issues....

    ok, ill get her good and hot with the propane torch after I see if I can procure a 1/2" allen tool here in town. Would prefer to get this off today, rather than have it sit in the yard apart for a week or so waiting on parts/tools..... just wish there was better access to the gimbal housing...
  19. ScottinAZ

    Bellhousing pivot bolt issues....

    Ok, I get that these are a bugger to remove to change the bellows. I had the tool, I reefed on it with a breaker bar, and I stripped the splines on the tool..... new one is on the way... However, before I jack another tool up, or worse strip the spline in the pivot bolt, about how much heat is...
  20. ScottinAZ

    boat and trailer sit very low (to my eye)

    Issue isnt completely with the truck. I can compensate for that..... :D Its just a 1995 F250 4x4, so it does sit pretty tall. However I still think the trailer is too low even just on the jack, with the frame leveled.... here are a few pics. its currently sitting on the jack in the front, with...
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