Riser to manifold gasket

[CascoBay]

How often do you change the manifold to riser gaskets?

I am doing it every spring, is this overkill?

I have a 2000 RWC Volvo 5.7L.

 

[cooter2506]

Re: Riser to manifold gasket

IMHO overkill if in fresh water. If in salt water not over kill ,if you are doing it to check your manifolds and risers.

 

[Don S]

Re: Riser to manifold gasket

If they original manifolds and risers, and you boat in saltwater, it's not overkill.

 

[CascoBay]

Re: Riser to manifold gasket

Thanks, it is a salt water boat. The manifolds are original (I think?) but the risers are only a year old.

 

[Don S]

Re: Riser to manifold gasket

They should really be changed in sets. Then you would be good for about 4 or 5 years before you need to start checking regularly.
Gasket surface failure is where they go bad fastest.