Mercruiser 454 riser gasket question
#11
Thread Starter
Registered
Joined: Apr 2016
Posts: 9
Likes: 0
From: Davenport, WA
replacing risers? get a couple of these. http://www.ebay.com/itm/MERCRUISER-5...dW1jFm&vxp=mtr
#12
Banned
Joined: Jul 2011
Posts: 9,594
Likes: 46
From: Ft. Worth TX
those are NLA thru Merc and caused corrosion problems because of 3 dissimilar metals.
Cast iron manifold, riser gaskets a form of other metal(s) and SS riser - all clamped together
what were they thinking at that time. Hence one of the reasons why they are NLA and cost to manu as well.
Cast iron manifold, riser gaskets a form of other metal(s) and SS riser - all clamped together
what were they thinking at that time. Hence one of the reasons why they are NLA and cost to manu as well.
Last edited by BUP; 04-03-2016 at 03:46 PM.




