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2004 57L Mecruiser Exhaust riser restrictor Gasket

gmartin

New member
"Hello,

I have a 2004 5.7L


"Hello,

I have a 2004 5.7L Mercrusier and am replacing the exhaust riser restirctor gasket pt# 27-864850A02 (left side). This particular gasket has a smaller (restricted) water port on one end and a "normal" size water port on the other. When I took it off I pretty sure the restricted port was forward. All of the parts manuals I've seen show the restricted port on the aft side. Does anyone know which is correct? Does it matter?

Thanks,
Glenn"
 
"It does matter, the restricte

"It does matter, the restricted port goes forward. If the other side is still assembled, you can tell which port is the restricted port because the gasket has a straight flange on the side, the full flow side has no flange."
 
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