OVERKILL
$100 Site Donor 2021
I expect it'll be a cracked plug.
As per the other thread, the engine and drive were out for the fibreglass work to be done. Since being back together it has a missfire (it did not previously) so I'm thinking a plug got bumped and cracked during the removal or install. I pulled #1 and it looked decent so I know it isn't that the plugs are old or in horrible condition.
EEC-IV can run a cylinder balance test, but I don't think I need to go down that rabbit hole with it yet, I'll probably toss a set of plugs into it this weekend as a start. The boat did sit for 5 years prior to us picking it up, but given that it wasn't missing the first season we were out in it I'm not inclined toward an injector issue.
Injector harness looks fine, plug wires look fine (but are OE, so they are old). Cap and rotor are decent.
Also may have to do some hunting for a leak, it's taking on a bit of water still and it isn't the prop seal. Possible areas of ingress are:
- stabilizer fins along the centre of the hull
- rudder
- exhaust
Nothing is obvious, the leak isn't substantial.
I'll be back up at the lake the end of the week (just got home) so hopefully can get this cleared-up.
As per the other thread, the engine and drive were out for the fibreglass work to be done. Since being back together it has a missfire (it did not previously) so I'm thinking a plug got bumped and cracked during the removal or install. I pulled #1 and it looked decent so I know it isn't that the plugs are old or in horrible condition.
EEC-IV can run a cylinder balance test, but I don't think I need to go down that rabbit hole with it yet, I'll probably toss a set of plugs into it this weekend as a start. The boat did sit for 5 years prior to us picking it up, but given that it wasn't missing the first season we were out in it I'm not inclined toward an injector issue.
Injector harness looks fine, plug wires look fine (but are OE, so they are old). Cap and rotor are decent.
Also may have to do some hunting for a leak, it's taking on a bit of water still and it isn't the prop seal. Possible areas of ingress are:
- stabilizer fins along the centre of the hull
- rudder
- exhaust
Nothing is obvious, the leak isn't substantial.
I'll be back up at the lake the end of the week (just got home) so hopefully can get this cleared-up.