1990 Maxum "?". Not too keen on how Maxum designated their boats, guessing mostly by length and an alpha numeric system based on options particular to a series of models.
It's not too important to know the model of your Maxum as they are no longer manufactured and you'll get zero support from...
Tinned copper wire is the best for use with exposure to the elements, especially water
It is more expensive than regular copper strand but when you need it to work there's no point skimping on quality. Tough doing a job twice
Verify the water separating fuel filter is full and void of anything but fresh fuel.
Verify the carburetor/fuel injectors are supplying fuel to the engine.
Verify the ignition system is sound through a visual inspection of the components and with a spark test at the coil/plugs
Verify the...
You'll need to install a new transom in the boat and cut the keyhole for a mercruiser transom assy. Might also need to refab the stringers/mount areas depending on engine choice
Plenty of info/help right here on iboats in the restoration forum
Did you try this starter button applied directly to the primary post of the starter solenoid (the solenoid attached to the starter)?
If so, the starter has failed and needs replaced
Otherwise follow dodge's advice from post #15 and measure voltage at the primary post on the starter solenoid...
The coupler pictured attaches to the crank end, basically sandwiches the flywheel between it and the crank end
Factory setup uses studs in the crank end with flanged nuts holding the coupler and flywheel on. Unknown what the torque value from volvo is but do know mercruiser flywheel bolts are...
Neutral safety switch?
Guessing you're having an issue with the engine turning over/cranking with the key switch?
Is there any voltage at the primary side of the solenoid with the key switch in the "start" position?
If the prop exited the water and you didn't throttle back there may be damage to the running gear
Some efi volvos have very noisy fuel pump assys. Could try unplugging one/both pumps when the whining starts, see if it goes away
I've measured the free play in the shift shaft on a few Alpha One/MC-1 drives and I've only seen one out of spec. That one drive came off an older boat with an oem/original style (threads into the fwd side of the bell housing and core cut to length) lower shift cable. The shift adjustment had...
It's a drain hose for any water that happens to get inside the flywheel cover. Idea is that if water does get into the area that drain will allow water to escape faster so it does not reach the starter or rms/less water being flung around by the flywheel
Superfluous? Maybe, but it's there...
Only time I've seen a line like that from the exhaust cooling passage is for a dripless propshaft packing on an inboard/v drive or a hot/cold raw water shower
It'd be best to abate the barb and hose and just plug the hole
Most likely a short to ground in the ignition circuit somewhere in the engine harness
You haven't mentioned using an ohm meter to check for a short. Using the blown fuse method you've isolated the issue to the engine harness. A dvm along with a visual inspection will help greatly in locating...
If the u joint bellows are dry inside and in good shape with no gear oil present you can rule out the yoke shaft seal
The drive halves mate with o rings so little chance of the leak being there unless there is damage from a hard strike or corrosion
Mercruiser has a service bulletin about bravo...
All one can do is post an answer to the OP qeustion(s) to the best of their knowledge
If the question/issue is too vague either ignore the thread or ask appropriate questions for better troubleshooting advice
The issue regarding resolving the problem is left up to the OP. It is their decision...
Certainly can tighten the transom assy fasteners but with the engine and exhaust in place you'll never reach them all. Spec is 25-30 lb/ft iirc.
40 year old boat with original equipment I'd first be suspect of corrosion and transom rot
The only seals under water on a bravo are the propshaft seal(s)
Other seal area is the input yoke shaft which should not be subject to water at any time as the u joint bellows should be dry inside
Be sure the drain plug gaskets are in good shape and the shouldered area is free of debris/old...
No clue
But you'll most likely have a tough time finding someone who will work on it. Have to find a shop willing to work on older stuff with someone capable of doing the work properly. Maybe an independent guy who works primarily on sterndrives, there's a few around
What is transom oil?