Ticking/clicking noise Mercruiser alpha one 2002

[philprendergast]

This noise showed up last weekend and at first I thought it was the belt as it sounds like it’s coming from that area or the starboard side. See video attached.

What is it? Am I screwed?

 

[Lou C]

Sounds like an exhaust leak or a blown head gasket. Check the motor oil for water mixing in, if none, that's good, it could be a blown gasket between the exhaust manifold and the cylinder head.

 

[jakblak007]

Sounds to me like a loose sparkplug. That's where I'd start.

 

[Scott06]

Its compression related willing to bet manifold to head, could be loose plug. Wouldn't think you are screwed but need to get in around manifold and head and see where it is coming from. Also wouldn't hurt to do compression check to rule out head gasket.

Did it over heat ?

 

[philprendergast]

Its compression related willing to bet manifold to head, could be loose plug. Wouldn't think you are screwed but need to get in around manifold and head and see where it is coming from. Also wouldn't hurt to do compression check to rule out head gasket.

Did it over heat ?

Its compression related willing to bet manifold to head, could be loose plug. Wouldn't think you are screwed but need to get in around manifold and head and see where it is coming from. Also wouldn't hurt to do compression check to rule out head gasket.

Did it over heat ?

It didn’t overheat and I pulled the plugs and they all look the same. No water in the oil (as far as I can tell from the dipstick). I’m going to do a compression check to rule out the head gasket. I may end up changing plugs while I have them out anyways.

 

[QBhoy]

Exhaust leak odds on…if it’s not a spark plug losing its seal.

 

[philprendergast]

So I took the manifold off.

Looks like the head gasket. Can anyone confirm?

 

[jtsvette]

So I took the manifold off.

Looks like the head gasket. Can anyone confirm?

Time to do a compression test on all 4 cylinders. Each one should be around 150psi. You can get compression testers at Harbor Freight for a good price.

 

[Scott06]

So I took the manifold off.

Looks like the head gasket. Can anyone confirm?

Did u do a compression test?hard to tell from keyboard