I bought a new Ranger with a Merc. 115 I6. As I was trying it out on my first outing, moving into the 55 MPH range it started chine walking....scared me at first as I didn't know what was happening. The selling dealer put a 13x24 Laser 3 blade SS on it. I didn't happen to look at the RPMs at...
I don't know if this got answered and I didn't look through the responses as I am here answering a different question. The Tstat operates up to about 2500 RPM (per the serv. manual) and the Poppet above that when increased flow is required. I don't know if I mentioned it here but in 2004 I...
According to Faztbullet's posts, the magnet on the float has a habit of falling off its mounting position and falling to the bottom of the tank. His description of a suitable fix is "hair-raising to me"....I'd just buy a new tank if I opted for a "fix it" solution. Having his credentials, if...
Plus the Looper has a tuned, reflective exhaust function where the exhaust from one cylinder helps to keep the raw fuel in the combustion chamber of a cylinder as the piston is closing off the exhaust port before the big bang. Initially that came to being with the OMC, Evinrude, Trump 3 cyl. 55...
How did that perform in F gear. Other than slow to slow planing speeds, I can't imagine that working. Once you are up to speed, half the blade area is in the air.
Well that makes sense. Same sort of thinking with small 4 cycle engines where they have a hump on the cam immediately preceding the "lobe" that opens them when desired, that cracks open one or both of the valves, reducing the compression and making it easier to pull start the engine. Once the...
I don't know how to relate to what you posted....no explanation to what you were referring. Torque x RPM equals HP more or less. Either you get it by torque, like the OMC 2 cylinder engines back in the day, running big bores at 4500 RPM or small cubic inch engines running at 6k
RPM, like the...
That's a good question. So here is what Google AI thinks about the subject:
While the absolute minimum compression required for a gasoline engine to start and run is generally considered to be in the
90–100 psirange regardless of design, the functional minimum and normal operating compression...
Whatever your other problems are, your 90 psig on compression checks are 30# below the Merc Manuals specks for 2 stroke compression of "If compassion is less than 120 PSIG, expect problems". With that disparity, I'm amazed that it runs at all!!!!!!
Well, I would see if it met my expectations.....starting ability, idling ability, acceptance of fuel to get on plane in a short amount of time, top speed in an area where other boats of same construction run. If I does all that then what are you looking for? Would seem to me that nothing is...
Before you go to a lot of trouble, get some Sea Foam (auto parts stores have it) and put 2 oz. per gallon in your fuel tank in addition to any pre-mix requirement. Run the engine till that tank of gas is gone. If you still have a problem, then "I" would start looking into engine problems...
You didn't specify a lot of details but in addition to Alldodge's comments, you may have corrosion on some mating electrical connections. Wouldn't hurt to cycle the interconnecting joints several times to rub off any corrosion and ensure that you are getting constant conductivity in the joint...
Ask Faztbullet. I recall on an impeller replacement question he mentioned that you needed to ensure that the silicon (gell formed) seal, somewhere in that area, needed to be inspected and updated if needed: "To keep water from..........................." I forget the verbiage but that is...
Most Mercuries in the pre-V6 lineup have integral heads that are part of the engine casting. What you have is a flat plate over the rear of the block that is only a water jacket cover to retain water in the block.....a quick look at the side of the plate will show only 1 gasket...
