Replacing exhaust manifolds and risers
 

Based on preliminary advice from 2 members of this NG I may be looking at
replacing the exhaust manifolds and risers on my 4.3L 1997 Volvo Penta.

The engine compartment on this boat is small and even an oil filter change
is difficult.

Knowing that does the replacement of the manifolds and risers mean the
engine has to be pulled? The boat is a 1997 Glaston GS209.

TIA!

Replacing exhaust manifolds and risers
 

Probably not, Jim, but there could be an advantage to pulling the
engine. to look stuff over that you can't normally see. like rear main
seals, back frost/expansion plugs. parts of the drive assembly etc.



JimH wrote:
Based on preliminary advice from 2 members of this NG I may be looking at
replacing the exhaust manifolds and risers on my 4.3L 1997 Volvo Penta.

The engine compartment on this boat is small and even an oil filter change
is difficult.

Knowing that does the replacement of the manifolds and risers mean the
engine has to be pulled? The boat is a 1997 Glaston GS209.

TIA!

Replacing exhaust manifolds and risers
 

wrote in message
oups.com...
Probably not, Jim, but there could be an advantage to pulling the
engine. to look stuff over that you can't normally see. like rear main
seals, back frost/expansion plugs. parts of the drive assembly etc.



I agree. Thanks for bringing me to my senses!

Replacing exhaust manifolds and risers
 

On Mon, 10 Jul 2006 18:59:58 -0400, " JimH"
jimhUNDERSCOREosudad@yahooDOTcom wrote:

Based on preliminary advice from 2 members of this NG I may be looking at
replacing the exhaust manifolds and risers on my 4.3L 1997 Volvo Penta.

The engine compartment on this boat is small and even an oil filter change
is difficult.

Knowing that does the replacement of the manifolds and risers mean the
engine has to be pulled? The boat is a 1997 Glaston GS209.

TIA!


If you can reach under the manifolds to get to the bolts, you certainly
shouldn't have to pull the engine!
--
******************************************
***** Have a Spectacular Day! *****
******************************************

John

Replacing exhaust manifolds and risers
 

JohnH wrote:
On Mon, 10 Jul 2006 18:59:58 -0400, " JimH"
jimhUNDERSCOREosudad@yahooDOTcom wrote:

Based on preliminary advice from 2 members of this NG I may be looking at
replacing the exhaust manifolds and risers on my 4.3L 1997 Volvo Penta.

The engine compartment on this boat is small and even an oil filter change
is difficult.

Knowing that does the replacement of the manifolds and risers mean the
engine has to be pulled? The boat is a 1997 Glaston GS209.

TIA!


If you can reach under the manifolds to get to the bolts, you certainly
shouldn't have to pull the engine!
--
******************************************
***** Have a Spectacular Day! *****
******************************************

John

Did you replace yours or have a mechanic do it? Did they have to pull
the engine?

Replacing exhaust manifolds and risers
 

On 10 Jul 2006 16:18:26 -0700, "JimH" wrote:


JohnH wrote:
On Mon, 10 Jul 2006 18:59:58 -0400, " JimH"
jimhUNDERSCOREosudad@yahooDOTcom wrote:

Based on preliminary advice from 2 members of this NG I may be looking at
replacing the exhaust manifolds and risers on my 4.3L 1997 Volvo Penta.

The engine compartment on this boat is small and even an oil filter change
is difficult.

Knowing that does the replacement of the manifolds and risers mean the
engine has to be pulled? The boat is a 1997 Glaston GS209.

TIA!


If you can reach under the manifolds to get to the bolts, you certainly
shouldn't have to pull the engine!
--
******************************************
***** Have a Spectacular Day! *****
******************************************

John

Did you replace yours or have a mechanic do it? Did they have to pull
the engine?

I've removed and replaced them twice, once for inspection and cleaning, the
other after they plugged up.

No, I did not pull my engine.
--
******************************************
***** Have a Spectacular Day! *****
******************************************

John

Replacing exhaust manifolds and risers
 

You do not need to pull the engine. Risers and exhaust manifolds are
relatively easy to remove. They are heavy so take the risers off first and
then the manifolds. If the boat has been in fresh water you may only need
to replace the risers. In fresh water you can sometimes get two sets of
risers to one set of manifolds. I would remove both and inspect the
manifolds before deciding. Also auto exhaust gaskets can be used between
the block and the manifolds, you don't need to pay "extra" for marine ones
:-)

" JimH" jimhUNDERSCOREosudad@yahooDOTcom wrote in message
. ..
Based on preliminary advice from 2 members of this NG I may be looking at
replacing the exhaust manifolds and risers on my 4.3L 1997 Volvo Penta.

The engine compartment on this boat is small and even an oil filter change
is difficult.

Knowing that does the replacement of the manifolds and risers mean the
engine has to be pulled? The boat is a 1997 Glaston GS209.

TIA!

Replacing exhaust manifolds and risers
 

On Mon, 10 Jul 2006 18:59:58 -0400, " JimH"
jimhUNDERSCOREosudad@yahooDOTcom wrote:

Based on preliminary advice from 2 members of this NG I may be looking at
replacing the exhaust manifolds and risers on my 4.3L 1997 Volvo Penta.

The engine compartment on this boat is small and even an oil filter change
is difficult.

Knowing that does the replacement of the manifolds and risers mean the
engine has to be pulled? The boat is a 1997 Glaston GS209.

TIA!


I'm in the process of doing this on my SeaRay 300 Weekender with twin
5.7L's, and I'm of course not pulling the engines, even though they
are put in with a shoe horn. If I pulled them, I wouldn't have
anything to lay on! 8)

Having the engine on a stand would make this a piece of cake,
especially if you break a bolt or two. If everything else is OK, I'd
avoid pulling the engine, as that can open up its own can of worms.
Even though space looks tight, you should be able to access all of the
servicable items.

I would avoid using Sierra products, as the last set of risers I
bought from them were very, very poor. The casting quality was awful,
and I refused to install them. The best casting I've seen so far is
from Aqua Power, but Sierra bought them and the Aqua Power brand was
discontinued, along with their superior castings. You should be able
to find a new set on the web though. I have also found the OEM
Mercruiser products to be of good quality, but if you plan to buy them
locally, you'll pay through the nose for them.

Replacing exhaust manifolds and risers
 

On Mon, 10 Jul 2006 18:59:58 -0400, " JimH"
jimhUNDERSCOREosudad@yahooDOTcom wrote:

Based on preliminary advice from 2 members of this NG I may be looking at
replacing the exhaust manifolds and risers on my 4.3L 1997 Volvo Penta.


One other painfully obvious thing...Don't forget to drain them first!

Replacing exhaust manifolds and risers
 

On Tue, 11 Jul 2006 15:09:20 GMT, wrote:

On Mon, 10 Jul 2006 18:59:58 -0400, " JimH"
jimhUNDERSCOREosudad@yahooDOTcom wrote:

Based on preliminary advice from 2 members of this NG I may be looking at
replacing the exhaust manifolds and risers on my 4.3L 1997 Volvo Penta.

The engine compartment on this boat is small and even an oil filter change
is difficult.

Knowing that does the replacement of the manifolds and risers mean the
engine has to be pulled? The boat is a 1997 Glaston GS209.

TIA!


I'm in the process of doing this on my SeaRay 300 Weekender with twin
5.7L's, and I'm of course not pulling the engines, even though they
are put in with a shoe horn. If I pulled them, I wouldn't have
anything to lay on! 8)

Having the engine on a stand would make this a piece of cake,
especially if you break a bolt or two. If everything else is OK, I'd
avoid pulling the engine, as that can open up its own can of worms.
Even though space looks tight, you should be able to access all of the
servicable items.

I would avoid using Sierra products, as the last set of risers I
bought from them were very, very poor. The casting quality was awful,
and I refused to install them. The best casting I've seen so far is
from Aqua Power, but Sierra bought them and the Aqua Power brand was
discontinued, along with their superior castings. You should be able
to find a new set on the web though. I have also found the OEM
Mercruiser products to be of good quality, but if you plan to buy them
locally, you'll pay through the nose for them.

I found a decent price in a boat trader magazine, took the magazine to my
marina, and he got me the parts at a price only about 10% over the magazine
price.
--
******************************************
***** Have a Spectacular Day! *****
******************************************

John