manifold, risors

rasbury

Not much discussion about this, I think I came up in two of the searches....the other was from someone else who had bought a low hour 2005 oddly enough. Anyway, with the hours low, trailered and fresh to brackish water and visual inspection determined good to go, I'm still wondering about mine. Can I pull out any of the plugs in the manifold/risors I see and get any sense of what the corrosion is inside?

frenchship

To know exactly condition of the risers and manifolds they need to be removed. But if your temp gauges is creeping up and you know that everything else is good (impeller thermostat ) it could be an indication . Also the used of a infrared heat gauge aim at the manifolds and risers could indicates to see any temp variations between the risers and manifolds could indicate a problem. But nothing beat removing them which is not that difficult specially for the risers.

Dream_Inn

I agree, removal is the way to go.  Lubricate the bolts first and let that sit for a few days.  Make sure to buy some new gaskets as well, cause once removed you have to replace.  The worse part is cleaning the gasket all off (if you don't have to replace).

Handymans342

Can risers and manifolds be "boiled out clean" like we used to do with radiators?

frenchship

Handy,
if you clean them out and remove lot of rust from them where do you think the rust come from
it come from your risers and manifolds  meaning that the walls are getting thin and probably better to replace them. If not much rust maybe cleaning them out will prolong their life but eventually the will need to be replace specially in salt water.

rasbury

everything is running fine, recently had temp problems but that was my raw water pump and hopefully have that squared away....just don't want a few hundred dollars to end up being a few thousand dollars so will put pulling them on my list to do.....thanks all for the input.