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  1. ScottinAZ

    MC-1 Trim Pump issue.

    ok, did a bit of trial and error to figure it out. Check ball goes in first, followed by small spring, washer and big spring with the fitting holding it all in place. System bled and working 5.0 according to specs. saved me replacing the whole valve assy.... not expensive, but time wasted...
  2. ScottinAZ

    MC-1 Trim Pump issue.

    ok, we are working on a 1980 vintage 120hp MC-1 trim pump. Metal reservoir with external control valve. I have function in trim-up but nothing in trim down. I am bleeding the lines at the moment due to it running dry over the previous 9 years since it had last operated. Reverse lockout and...
  3. ScottinAZ

    Multiple Electrical Issues

    imho deoxit may help, but does not restore the connectors to "perfect" condition. best thing to do is bite the bullet and replace the connector with one that is more suited to the marine environment. Once again, it appears a mfg cheaped out, and used a connector that is not weatherproof, and as...
  4. ScottinAZ

    Timing chain & camshaft replace

    its a fairly well known thing in the automotive side of Chevys that the oil pan does not need to come off, BUT it does make the job a LOT easier, both working the cover in and out (there is a small corner on both sides of the lower lip of the timing cover where the seal sits that interferes)...
  5. ScottinAZ

    Mercruiser MC1 drive (Pre-alpha) Rebuild

    repair kit part number from Mercruiser (may be superseded, but all I did was a google search on the part number and got the equivalent) is 25-60342A-2. I got a pair of NOS ones on Ebay for a fair price What I was getting at for the corrosion, is where the piece was stuck to the piston, may...
  6. ScottinAZ

    Alternate controls to replace 1980’s to 1990’s outboard controllers?

    not an expert, but the plug should be able to be wired past, just match function for function. Bigger issue in my eyes would be the control cables. can you get them to match on both ends, and are the throws going to be the same, or similar enough to get full function?
  7. ScottinAZ

    Spreading Manure, again

    in that case, educate please. Always willing to learn
  8. ScottinAZ

    Spreading Manure, again

    how what??? TIG process usually has a foot pedal for control of heat (amperage) on the fly. you dont get this with any of the other processes. Either you run with what you set up with at the beginning of your weld, or you stop, reclean and start over with different settings and correct for...
  9. ScottinAZ

    Mercruiser MC1 drive (Pre-alpha) Rebuild

    ok, from the looks of things, your front bushing only has marks on the outside edge, and that is NOT a sealing surface. I would dress them down to get rid of any raised edges and be very careful when putting the o-ring into its groove (if the groove is good, and the edges around it are good, you...
  10. ScottinAZ

    Spreading Manure, again

    you absolutely can weld stainless with stick, gas or wire feed, however TIG allows you much greater control of your puddle, heat, and of course shielding gases when working with materials that can be quite finicky,
  11. ScottinAZ

    Merc 350 sputters, dies, won't restart after heating up

    wouldnt be the first or last time that a pickup went wonky when hot, and then took an extended break before it worked again..... at the end of the day, its still a Chevy... starter solenoids and dizzy pickups dont like heat as they age
  12. ScottinAZ

    I/O 18 ft. Does it sit too low in the stern?

    still the weight of a smaller adult (such as my wife) or larger child.... I woudnt want to deadlift either one personally :D
  13. ScottinAZ

    I/O 18 ft. Does it sit too low in the stern?

    to my eye it looks low in the stern. BUT, that could be due to a humongous engine in the boat and a very light bow. Out of curiosity what engine is in that thing? Keep in mind that a small block V-8 weighs in the neighborhood of 500-800 pounds dry, and big blocks weigh more than that. if you...
  14. ScottinAZ

    Spreading Manure, again

    you're welcome fanboi
  15. ScottinAZ

    Spreading Manure, again

    actually, I do. However I dont have a TIG setup to work with either Aluminum or Stainless. I do know that if you overheat stainless, you can burn out the alloy and remove the stainless qualities of it. Aluminum just ends up as a molten hunk on the floor if you do it wrong. Myself I stick to mild...
  16. ScottinAZ

    Spreading Manure, again

    well, in all honesty, stainless is much harder to fix compared to Aluminum or Bronze. Requires special procedures for welding, whereas the other two are relatively easy and soft to work with. This goes with "wrecking lower units" if you hit something with an aluminum or bronze prop, the prop...
  17. ScottinAZ

    Spreading Manure, again

    my take on it is this. If this really was the best thing since sliced bread in the marine world, some "obscure" internet testing site wouldnt have to make their silly videos. There are people and businesses out there that a miniscule improvement in speed or efficiency means MILLIONS of dollars...
  18. ScottinAZ

    Spreading Manure, again

    In a word, yes..... it doesnt take much looking to see that the general consumer really isnt that informed about "anything" and even a "shred" of truth by someone who comes off with authority will be followed by some with no more thought.
  19. ScottinAZ

    MerCruiser MC-1 Trim Sender wiring

    yes, that is the diagram that I am working off of. Ill check the ground on the black lead on the sender, and see if that makes the gauge work. otherwise, the gauge is probably pooched.....
  20. ScottinAZ

    Spreading Manure, again

    the issues I am seeing off the top are these. 1) increase in speed 2) decrease in RPM 3) increase in fuel economy getting two out of three of these is not unreasonable, but it seems that getting all three violates the rules of physics. Changing the pitch can and will likely result in top...
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