I notice you had taken the hose at bottom , does this part of the ,can I remove at bottom to drain motor???????? I need to remove a manifold and need to drain it before replacing. where is that blue screw on plug goes to???? is that for draining engine too???.
i know the old wet joint style of manifolds and risers should be changed every 5 years... but how often should these dry joint manifolds and risers be changed out?
Thank You for information. Helps . Riser Bolts, No part numbers and 2x mercury dealers say they can not order them due to no part numbers in computer. Ya right, Any Ideas on where i can get 8x new 9 inch bolts . Thanks
I would just take off one of your bolts and measure the pitch with a set of thread gauges. You could also bring it to the hardware store and they have screw in style thread gauges you can use to figure it out. Buy a couple of the matching bolts but make sure they are longer than the old one, cut off the head with an abrasive disk or hacksaw, then cut a slot in the end so you can remove them with a flat head screwdriver.
if you can help out i looked a boat with a merc 5.0 temp was at 170-180, compression at 170-175, left riser luke warm right riser hot but you can keep your hand on it, engine vibrating very bad any thoughts??
They cut the old bolt off just under the head and slice a flat head style grove into the end for removal. At least that is what I gathered from this video. It’s brilliant.
I notice you had taken the hose at bottom , does this part of the ,can I remove at bottom to drain motor???????? I need to remove a manifold and need to drain it before replacing. where is that blue screw on plug goes to???? is that for draining engine too???.
i know the old wet joint style of manifolds and risers should be changed every 5 years... but how often should these dry joint manifolds and risers be changed out?
Thank You for information. Helps . Riser Bolts, No part numbers and 2x mercury dealers say they can not order them due to no part numbers in computer. Ya right, Any Ideas on where i can get 8x new 9 inch bolts . Thanks
I would just take off one of your bolts and measure the pitch with a set of thread gauges. You could also bring it to the hardware store and they have screw in style thread gauges you can use to figure it out. Buy a couple of the matching bolts but make sure they are longer than the old one, cut off the head with an abrasive disk or hacksaw, then cut a slot in the end so you can remove them with a flat head screwdriver.
What would happen if you had the restricted gasket on the bottom?
if you can help out i looked a boat with a merc 5.0 temp was at 170-180, compression at 170-175, left riser luke warm right riser hot but you can keep your hand on it, engine vibrating very bad any thoughts??
It’s clogged with rust.
Do you sell manifolds/Dry Risers for the 7.4 454 block GM Engines?
What are the bolt dimensions (2 guide pins) that you made in order to slide the manifold on? (i.e. length, size and pitch)? Thanks!!
jreuscher I like how these folks answer your question.
I"m looking for the same answer
They cut the old bolt off just under the head and slice a flat head style grove into the end for removal. At least that is what I gathered from this video. It’s brilliant.