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  1. K

    Increasing HP on a 175 hp V6 to 200hp

    1986 Black Max,<br /><br />How easy is it, has anyone done it?<br /><br />I'd like to know everything that needs to be changed out.. Even the lower unit if needed...<br /><br />Thanks in advance...
  2. K

    Anyone have a 1985-88 Merc. V6?

    Interested in what engine temps you are getting at idle, no-wake and WOT speeds... And I'm assuming these temps are measurements of the head metal below the top spark plug just like mine...
  3. K

    Overheat Temp Switch - Testing it?

    Anyone ever tested the temperature switch while it was mounted on the head? (with a heat gun or some artificial means of heat applied)<br /><br />If not, what is the best method in your opinion?
  4. K

    Stator vs. trigger

    The stator sends electrical charge to the switchboxes and rectifier, while the trigger is what "triggers" the switchboxes to release the charge at the appropriate time to the coils/spark plugs...
  5. K

    Interesting Cause of an Overheated V6

    I was running out on the lake today, nothing unusual.... After about 10 minutes, I glanced down at the pressure guage and noticed that it was running only at 12-13 psi at WOT compared to the normal 22-23. Took a look at the temp. guage and it was reaching up to 220F (head metal temp.). So I...
  6. K

    Temp?, from a 86' Merc. 175hp V6

    It's a black max.... This post may be lengthy, so I appologize in advance....<br /><br />I recently installed a new teleflex temperature guage with a new sender to match... My old guage didn't have numbers on it and I was concerned about what the actual temperature was...<br />So I got it on...
  7. K

    Will 200hp carbs work on a 175hp???

    V6... <br /><br />I'm not really good with carbs... So I thought I would ask... I have an opportunity to purchase some 200hp carbs from an aquaintence.. I thought It would be good to familiarize myself more with them, and also possible increase power if possible..<br /><br />So,<br />Will WMH...
  8. K

    Will 200hp carbs work on a 175hp???

    V6... <br /><br />I'm not really good with carbs... So I thought I would ask... I have an opportunity to purchase some 200hp carbs from an aquaintence.. I thought It would be good to familiarize myself more with them, and also possible increase power if possible..<br /><br />So,<br />Will WMH...
  9. K

    Will 200hp Carbs work on a 175hp Motor....

    V6... <br /><br />I'm not really good with carbs... So I thought I would ask... I have an opportunity to purchase some 200hp carbs from an aquaintence.. I thought It would be good to familiarize myself more with them, and also possible increase power if possible..<br /><br />So,<br />Will WMH...
  10. K

    Spark Plug Photos.....Lean Condition?

    Take a look at a few photos of my spark plugs off of my 86' Merc. 175. Keep in mind, I'm running pre-mix....<br /><br />The first photo is of 1,3,5 and the second shows 2,4,6.. In each photo the bottom cylinder plug is at the far left and top on the far right...<br /><br /> <br /><br />...
  11. K

    Question about a poppet valve?

    I've seen several topics about this, and I understand the principle of its existence. But I have some unanswered questions....<br />First off, I'm refering to the valve on my 1986 Mercury 175hp..<br /><br />It has the egg shaped cover (not the cover shaped like the number 8)...<br /><br...
  12. K

    Gummed up threads on cylinder head....

    Last night I pulled the cylinder cover water jackets for inspection....<br /><br />Most all the bolts came out easily, but a few were tight and after removal contained some aluminum on the bolt threads (only a few threads contained aluminum)... Obviously a result of seizure.. So now a have a...
  13. K

    Hey Lubedude!!!

    What is the max. rpms you can reach with your Turbo 27P prop...<br /><br />I just purchased a Turbo 26p.
  14. K

    Is there a law to allow inside access to your drain plug???

    Has anyone ever heard of this... The original design/layout of my tank/battery compartment (on a bass boat) allowed easy access to the drain. But somewhere along it's ownership lines, a platform was added to hold two batteries, which covers up the bilge pump area and prevents a reachable means...
  15. K

    Pic!!! What's the part# for this 200 optimax Cowling?

    I hope you guys can help me with this... It's obviously a top cowling for a Merc. 200hp Optimax... It's all one piece except for the plastic vent at the rear. It has a couple of vent plugs that look like they can be removed for more air flow... If you can give me the part# and what year(s)...
  16. K

    Crack in Livewell?

    I noticed some cracks located at the bottom rear portion of my rear livewell. The cracks appear to be similar to jel-coat cracks you see on many fiberglass boats. But after further inspection (in certain spots) the cracks actually extended through the fiberglass and is visible on the back side...
  17. K

    Black Max V6, Fuel leaking from Carbs/Airbox?

    We've seen several questions lately about fuel leaking from carbs or fuel/oil residue present below the airbox and inside the bottom of the cowling....<br /><br />My question to those with V6 Carbed Mercs, do you see fuel coating the bottom of the airbox, or at least showing up underneath the...
  18. K

    Trumanlake

    read that post on outboard running temps... I would like you to give your input...
  19. K

    Is there a Louder Alarm Horn I can buy?

    1986 Mercury 175hp.. <br />My current horn works fine, but I'm afraid I won't be able to hear it at WOT with the motor screaming and the wind, etc.... Plus, I've lost some hearing, which doesn't help...<br /><br />I was wondering if there is a louder horn available that will replace the stock...
  20. K

    Lubedude, Trumanlake, walleyhead, Anyone!!!!

    Hey, I was running the boat today and yesterday testing two different props and various trim angles...<br />My question to you (or anyone with a similar set-up to mine) is, do you have a tilt/trim guage? And if so how far up have you been able to trim the motor safely? My guage is pretty...
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