I really am at the end of my tether...
My boat has never started well. On the test cruise, the marina had to connect a booster pack. I bought it. My brother took it to the crane out and it was a pig to start. It was craned out, lorried down and I put it back in at Bristol. Ity was a pig to start, and in fact wouldn't. In a rush, I bought the first battery I could from a local car shop. It started, under protest.
Having moved it to Bath, I failed to tighten the stern gland sufficiently, and the engine bay flooded, submersing the starter motor. After this, it wouldn't even turn over. I removed the starter (engine is a 2.2 BMC), at the expense of some expletives. Not knowing anything about anything, a mate looked at it for me, and said one of the earths was corroded away, so it was running at half power.
I bought a new starter motor and installed it. Still absolutely nothing. When I jump it direct from the battery, the dog gets thrown forwards and jams in the teeth of the gear. I wiggle the starter, and it returns. If I flash the live terminal of the starter, it turns, though not as fast as I'd think, but, again, I know nothing about anything.
What doesn't happen at all is the engine turning over - I mean, not one bit. I just get a clunk as the dog gets thrown forward into the starter gear, and that's it.
So I wondered if the engine was seized, so removed the starter again (more expletives), and found if I used a screwdriver like a tiuny crowbar,I can turn the engine over. It's not seized. It's not easy but it's smooth and possible.
So I decided to just scuttle my boat in frustraetion, when my neighbour said it sounded to him like either a bad earth, or a lack of starter battery power.
When I looked at the starter battery, it's 70ah, which I gather is very underpowered - it's also, far as I know, just a regular car battery. When I looked at the original battery, it still just looks like a regular battery and not a marine battery, but I can't read the AH as the label has fallen off.
Can anyone offer any thoughts on this? I'm at my wits end. The battery thing is one more thing to try, and I don't have many left, but I'm reluctant to spend the money on a new battery if it isn't that... But I can't think of what else it could be, such that the engine doesn't turn over at all..? In retrospect, I'm not sure the problem was EVER the starter motor, though one of the earths had definately gone.
I loveliving on the boat, but is it too much to ask to be able to start the damned thing?
Cheers all
PS - am getting 13V when measured across terminals of starter battery, but don't know if that's here or there...