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Dennis A

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About Dennis A

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  1. Dennis A

    205 sl info

    +1. If you can't hit that range, something is wrong.
  2. The only mercruiser 4.2 I am aware of is diesel: https://www.mercurymarine.com/en-gb/ru/engines/diesel/mercury-diesel/42l-tier-2/
  3. Idle= 140 degF Anything above idle one needle width either side of the 150 mark regardless of engine speed (as long as I'm above idle) and water temp. Typically cruise around 2800-3400 depending on conditions. Speed is dependent on which prop and i really don't pay much attention to speed, try to match speed to conditions I go by what it has always shown, no idea what the actual temp is compared to my 27 year old mechanical gauge and sender.
  4. Dennis A

    205 sl info

    You don't need someone with an identical boat to yours to tell you that your WOT engine speed is too low. The design speed range is 4400-4800 like i previously stated. If you are not able to hit that range, then your engine is not producing enough power to turn the prop up to that engine speed and something is wrong. If you can touch the drive at speed and not be burned, then its not overheating. I have seen oil temp data in the 265F range for A1G2 drives. B3 are hotter.
  5. Dennis A

    205 sl info

    So what is the temp of your drive at speed? I prefer controlled science experiments over high wire circus acts hanging over the transom one handed on plane trying to point an IR thermometer at the top of the drive.
  6. Dennis A

    205 sl info

    There is no such animal, hence the request for specifics. 26 years ago is a long time and no telling. Likely a 19p, but could have literally been anything that fit. It should turn between 4400 and 4800 rpm, but is dependent on all the factors previously stated. Running on plane for a while with the upper drive out of the water will produce temps hot enough to cook the minerals out of the water hitting the the drive leaving behind a white residue. Just running on the muffs at 1100 rpm will produce temps about ~20-30 degrees above ambient temp near where drive mates to the transom assembly, where the input shaft bearings are.
  7. Dennis A

    205 sl info

    There are many factors at play here. What type of prop are you running? Material, blade count, cupping? Is the drive ratio 1.82? Full fuel tank when running? Trimming up? How many people and how much gear? Bimini top deployed? What is the air temp and RH%? Have you set base ignition timing as well as verified advance? Also, weight of the boat as this era of boat tends to gain weight if left outside uncovered or water frequently in the bilge. Lots of wood and foam that is poorly sealed to soak up lots of water. Is the hull clean?
  8. Dennis A

    Ignition switch

    like this: https://www.walmart.com/ip/Sierra-MP39780-Ignition-Switch-Off-Run-Start/32925284?wmlspartner=wlpa&selectedSellerId=0&adid=22222222228021903411&wl0=&wl1=g&wl2=m&wl3=51793449311&wl4=pla-83197008551&wl5=9022093&wl6=&wl7=&wl8=&wl9=pla&wl10=8175035&wl11=online&wl12=32925284&wl13=&veh=sem&gclid=CjwKCAjw0ZfoBRB4EiwASUMdYTg84PnwA7nVRwdodXTg51o2dZ0cHUixpnNkgj59lXxbKACf7goORBoCHpUQAvD_BwE
  9. https://www.3m.com/3M/en_US/company-us/all-3m-products/~/3M-Super-Strength-Molding-Tape/?N=5002385+3293241071&rt=rud
  10. Dennis A

    Jet boats: please someone be honest with me.

    Are you saying the it doesn't handle rough water as well as a deep V or better than a deep V?
  11. Dennis A

    Sun Pad liner

    +1. Removed mine as well with the same results as SG.
  12. I think you identified it in the title.
  13. Dennis A

    Mobil 1 oil question Wingnut?

    Nope. What is your application? Can't see your signature on mobile if you have it listed.
  14. Dennis A

    Mobil 1 oil question Wingnut?

    I was focused on the statement about marketing people being application engineers. I think our definition of "application engineer" is not the same. The person answering the phone is likely not an engineer and instead has a spreadsheet of approved applications for their product, if your application is not on the spreadsheet then the answer is going to be no, don't use it. Those people would have a fancy title of "product application specialist." Kinda like the guy that picks up my garbage once a week is a "sanitary engineer." What is the person "engineering?"
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