I need a little help!
01-29-2003 | 12:31 AM
#21
Registered
Joined: Feb 2001
Posts: 513
Likes: 0
From: Abita Springs, La.
LittleE-
I'm sorry, you asked a serious question, so here's my answer:
It is very difficult to do any major work on the engines in the boat. You can't crawl under them, and it is just cramped all around. Teamwork is important, and it helps BIG TIME if you can help by being a gofer (gofer wrenches, screwdrivers, etc.)
An inboard boat engine is essentially a car engine built to withstand the environment it lives in. One of the primary differences are in the exhaust manifolds, which must be water cooled. These can leak water, which the engine may try to suck in at idle. When water hits a hot exhaust valve, it can bend, break, or 'tulip'. Any of these is bad news. Higher dollar marine engines have special exhaust valves made of a material called Inconel, which resists distortion.
Anyway, it is important to periodically disassemble and inspect the exhaust manifold joints, and replace gaskets. It is a good idea to do this if the condition is unknown (used boat).
There are other items which are also good to at least inspect, re-lube, etc. in order to catch problems early.
I hope you have a lotta fun this summer, so keep us posted!!
Ronnie aka Bulldog
I'm sorry, you asked a serious question, so here's my answer:
It is very difficult to do any major work on the engines in the boat. You can't crawl under them, and it is just cramped all around. Teamwork is important, and it helps BIG TIME if you can help by being a gofer (gofer wrenches, screwdrivers, etc.)
An inboard boat engine is essentially a car engine built to withstand the environment it lives in. One of the primary differences are in the exhaust manifolds, which must be water cooled. These can leak water, which the engine may try to suck in at idle. When water hits a hot exhaust valve, it can bend, break, or 'tulip'. Any of these is bad news. Higher dollar marine engines have special exhaust valves made of a material called Inconel, which resists distortion.
Anyway, it is important to periodically disassemble and inspect the exhaust manifold joints, and replace gaskets. It is a good idea to do this if the condition is unknown (used boat).
There are other items which are also good to at least inspect, re-lube, etc. in order to catch problems early.
I hope you have a lotta fun this summer, so keep us posted!!
Ronnie aka Bulldog
01-29-2003 | 12:09 PM
#22
Guest
Posts: n/a
Would the exhaust be able to suck in rocks? We were in shallow water at Powell (drought) and the exhaust of one of the engines (if I remember right, keeping in mind the mass consumption of alcohol) ended up getting plugged with rocks. The pressure gauge read next to nothing and the temperature gauge went almost to 200. We took apart the pipes and cleaned them out, problem solved.
My next question would be:
Will replacing the 454s with 540s effect the power trim/trim tabs at all? I'm a wimp (and I don't own the boat) so I try to stay more or less trimmed down when I'm driving. I know that's ****ty in terms of gas mileage, will the new motors help/hinder that at all?
My next question would be:
Will replacing the 454s with 540s effect the power trim/trim tabs at all? I'm a wimp (and I don't own the boat) so I try to stay more or less trimmed down when I'm driving. I know that's ****ty in terms of gas mileage, will the new motors help/hinder that at all?
