looks like the aluminum and ring material may have had condensation sitting on them and it could be galvanic corrosion in the one pic when you zoom in. I would trust a good metal sleeve, however a replacment block would be my recommendation.
correct. unless you have a need to invest in a complete engine gateway and a second set of sensors. I would skip moving the engine related stuff to the screen.
the most important gauge you can get is raw water pressure. https://ww2.iboats.com/Boat-Water-Pressure-Gauges/dm/view_id.248016
a...
it should be stamped on your pumps. pull the pump, get the number.
HP should be P61171 (you will have to verify)
LP could be P61122 (you will have to verify)
Garmin is fine. Simrad is fine. Both are real chart plotters. however if you want to use as a display vs the gauges you have, you will need to have a NMEA2k compliant motor, or a stand-alone gateway. since we know nothing of your boats motor other than its an I/O in a 18 ft boat. we cant...
link in post 5 is the best link on carb parts for the rochester
cheap does not equal good
boat restoration and cheap do not go together.
cheap and 470 do not go together
plenty of the 470 190hp 4-barrel carbs on craigslist and ebay.
here is a deal...
compression test will help determine what is going on with rings
are you pre-mix or does this motor have an oil injection pump?
what oil are you running?
new to you motor or something you have owned for a while?
What is the history of the motor?
what maintenance have you done?
unless the guy smashed the carb with a hammer, your best bet is clean the carb on the 3.7. if the carb sat for 3+ months with old fuel in it, the passages will be crudded up anyway.
my first experience with a rotten fiberglass boat sinking. Up camping on the menomonee river north of Chalk Hills dam about 1978 or 1979 with my dad and brother. we are in dad's 14' mirrocraft. the boat we are following is a an older fiberglass boat belonging to my dad's friend Donny. Donny...
guys, carter and airtex can be bought on-line or at NAPA or any good automotive store. no need to buy them direct from Mercruiser who marks up the price 400%
your boat has a grounding block under the dash. that is where all the grounds for the helm are run. that is also the cheapest part that the boat builder could buy.
at most, you need to simply clean the crud off the terminals, clean them with a wire brush chucked in a drill, or 150 grit sand...
asked any number of times until its answered. if asked again, kindly point them to the answer. if they ask again, then they are open to be made fun of. Just like you are getting all hot and bothered right now, bolding your text.
lighten up francis