Re: 75 Mercruiser 140 over heating
My question is do these kits have everything to stop the leak or will I have to get additional seals, etc?
no, it's just an impeller replacement kit.
From what I have read these shutters are supposed to be located in the exhaust tube near the manifold and I should not have to remove the engine, is this correct?
no, first statement in the service manual is remove the drive and engine. so ya can get to the exhust tube and remove it, so that ya can remove the rivots that hold the bracket on that supports the shutter. they're rivoted on. personally, i varied from the service manual here. i R&Red my shutter w/o removal. though i did have the manifold off. i bent the new shutter in the middle to shorten it, inserted in the brackets and then straighted it back up. my way is NOT the recomended way. but so far has worked.
as far as the milkshake. i assume yer talkin the drive lub? ya need to find out what's leaking. might be as simple as a drain screw washer (seal) missing. might be bellows leaking and water entering the ft. seal. might be, might be? ya need to do a pressure test to the drive to fig. where it's leaking at. to replace seals in the drive. ya genearaly need special merc. tools.
ya also need a service manual. ya need #2 and can get it here.
"http://www-alt.mercurymarine.com/mnetdata/sisdata/srvcovr.pdf"