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Exhaust Bellows mcm 140

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Dell
New member
Username: doc_2048

Post Number: 3
Registered: 04-2009
Posted on Thursday, January 14, 2010 - 09:55 pm:   Edit Post Delete Post View Post/Check IP

The engine I am working on is in a 1977 Glasply. MCM 140 181 CID serial 4649529.
I bought this boat as a project. It has a cracked exhaust elbow. After I removed It I see that the exhaust bellows was in bad shape also. After I removed It I found the exhaust Elbow assembly was ate up with corrosion and no flap. I got my new bellows today with the exhaust elbow assembly. My Question Is do I need a strectcher for the bellows. It looks to be to small for the elbow. The bellows looks the same as the old but just looks to small to fit. I know the elbow Is not round and me thinks that is why the tight fit.
Bellows part is 12-53114a1
Exhaust elbow assembly is 53272a 1
I am a rookie and new to the I/O. I have done auto engine work allot so I am not afraid of getting in there but don't want to mess it up.
thanks
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chiefalen
Advanced Member
Username: chiefalen

Post Number: 523
Registered: 03-2008
Posted on Thursday, January 14, 2010 - 10:40 pm:   Edit Post Delete Post View Post/Check IP

they make a exhaust bellow install tool.
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Dell
Member
Username: doc_2048

Post Number: 4
Registered: 04-2009
Posted on Friday, January 15, 2010 - 12:03 am:   Edit Post Delete Post View Post/Check IP

thanks for info, is this the tool i need
18-9847 91-45497A1
on ebay 170299116417
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chiefalen
Advanced Member
Username: chiefalen

Post Number: 526
Registered: 03-2008
Posted on Friday, January 15, 2010 - 06:36 am:   Edit Post Delete Post View Post/Check IP

you could have posted a link that i could click on.
The first number comes up right for the tool.

another site has it for 58 dollars i didn't go to ebay to look up the auction number.

Hah it's one tool i don't have cause i have a stringer. But my friends have one we are always laughing about the differences between our drives.
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Dell
Member
Username: doc_2048

Post Number: 5
Registered: 04-2009
Posted on Friday, January 15, 2010 - 06:41 pm:   Edit Post Delete Post View Post/Check IP

thanks for the info, I am getting ready to pull the drive and engine, if the weather is nice.
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SC
New member
Username: daduckman

Post Number: 1
Registered: 03-2010
Posted on Tuesday, March 16, 2010 - 09:36 am:   Edit Post Delete Post View Post/Check IP

So here is a couple of crazy questions:
I need to change out the exhaust bellow. I have found some after market bellows that are accordion style. From what a service technician at our local boat service said I am thinking that this might work. He mentioned that the bellow is to keep water flowing and that it could work however it is not going to be as thick as the OEM version from Mercury. With that said, 1. does anyone know of this and then the second question would be:
2. Do you have to remove engine to put the bellow on? The accordion style might keep me from removing engine don't you think?

Any help will work!
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Guest
Member
Username: guest

Post Number: 54
Registered: 04-2009
Posted on Tuesday, March 16, 2010 - 02:03 pm:   Edit Post Delete Post View Post/Check IP

If the elbo is off,the bellow should be no problem to install. Heat the bellow a little with a hair dryer,or heat gun before trying to fit it over the elbo.
What happened to the original bellow? Wait...is this a salt water boat?
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SC
New member
Username: daduckman

Post Number: 2
Registered: 03-2010
Posted on Tuesday, March 16, 2010 - 04:19 pm:   Edit Post Delete Post View Post/Check IP

I was going across the lake and stopped to check out a fishing spot. I then tried to start the engine and take off and low and behold there was a glug glug noise. I saw black stuff coming from the blower out into the wide blue open. I opened the engine housing and I noticed water coming from the thermostat housing and immediately realized that we were sinking. Sort of!
We made it to dock and thought it would be an easy fix and it was after making some adjustments to thermostat and making my own gasket. Started the boat and sounded great until I noticed water filling up the bilge area...after inspecting further I noticed that the exhaust bellow was completely shot (now I know what the black stuff was blowing out the blower). 1977 mark twain and it has been garage kept and has original upholstery and apparently original bellow. UGH!

If I understand this, taking the two bolts out of the elbow and redoing the gasket that is on the manifold is a viable option rather than taking the outdrive off or removing the engine?

Thanks
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Kghost
Senior Member
Username: kghost

Post Number: 1331
Registered: 07-2008


Posted on Tuesday, March 16, 2010 - 05:19 pm:   Edit Post Delete Post View Post/Check IP

First off the exhaust bellows does not allow water into the boat in fact it is not really needed at all.

If you are taking about the exhasut ELBOW/RISER and the RUBBER BOOT that connects it to the exhaust ram theat exits the boat at thru the transom that is not a bellow.

SC

You best take some pictures and post them, I think you have the names and or discriptions or both wrong.

You may be referring to the UJOINT bellows for all we know.
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Bt Doctur
Senior Member
Username: bt_doctur

Post Number: 1303
Registered: 06-2006
Posted on Tuesday, March 16, 2010 - 05:38 pm:   Edit Post Delete Post View Post/Check IP

check page 6C-4 to make sure were talking about the same thing
http://www.boatfix.com/merc/Servmanl/13/13C6R2.PDF
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SC
New member
Username: daduckman

Post Number: 3
Registered: 03-2010
Posted on Tuesday, March 16, 2010 - 07:07 pm:   Edit Post Delete Post View Post/Check IP

Thanks for the help...I am going to try to get a picture for you Bt...we may be in wrong area.
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Bt Doctur
Senior Member
Username: bt_doctur

Post Number: 1304
Registered: 06-2006
Posted on Tuesday, March 16, 2010 - 07:14 pm:   Edit Post Delete Post View Post/Check IP

page 4A-20 maybe
http://www.boatfix.com/merc/Servmanl/6/6A4R3.PDF
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Guest
Member
Username: guest

Post Number: 56
Registered: 04-2009
Posted on Wednesday, March 17, 2010 - 03:17 pm:   Edit Post Delete Post View Post/Check IP

No worries,boot/bellows, I knew what you were talking about.
Bellow,or boot,there's only one point that water can enter the boat through the exhuast,unless you happen to have a V6,or V8 then there's 2.

Consider yourself to be very lucky. The boat could have sunk from this condition if it were to get low enough in the water that the top of the exhuast pipe/tube/manifold/etc.dropped below the water line. If this happened,it would be like having about a 3 inch hole in the bottom of the boat.It does not take long for a boat to fill,and I do not know of a small craft bilge pump that could possibly keep up with that amount of water.

Keep in mind, if this is a V style engine,the other side has the same amount of use on it. Its best to replace both sides at the same time in this situation. Why take the chance of the other side failing out on the water? You may not be as lucky the next time, but then again, the sharks need to eat too.

Good luck.
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SC
Member
Username: daduckman

Post Number: 4
Registered: 03-2010
Posted on Thursday, March 18, 2010 - 12:04 am:   Edit Post Delete Post View Post/Check IP

Ok...So here is a couple of pictures. In the First picture it is just the arm and lower bellow showing. The second picture is of the top bellow off next to the arm and bottom bellow.
I have found an accordion style set up on the internet that might work and keep me from removing engine. Based off what you see here could this be a viable option?
Pic 1Pic 2
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Guest
Member
Username: guest

Post Number: 59
Registered: 04-2009
Posted on Thursday, March 18, 2010 - 03:26 am:   Edit Post Delete Post View Post/Check IP

There's no need to remove the engine. Just remove the elbow from the manifold,set the boot and reinstall the elbow. I'm not aware of any boot,or bellow that can be installed without either removing the manifold,or pulling the engine.
Pull the engine only as a last resort. Pulling the engine will require a realignment of the gimble bearing,and unless you have the proper alignment tool for this,you'll have to take it in.
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SC
Member
Username: daduckman

Post Number: 5
Registered: 03-2010
Posted on Thursday, March 18, 2010 - 09:34 am:   Edit Post Delete Post View Post/Check IP

Sounds nice, however as you can see from the picture included here, there is only 1.5 inches from top of arm to boat housing. I just thought that with picture 2 below that I might be able to keep from removing anything.
Pic 1
Arm Clearance
Pic 2
Bellows Accordion
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SC
Member
Username: daduckman

Post Number: 6
Registered: 03-2010
Posted on Thursday, March 18, 2010 - 09:37 am:   Edit Post Delete Post View Post/Check IP

KgHost....pictures taken and can you tell now what I was talking about? Did I use the correct terms? I am trying to learn all of this and be back on the lake as soon as I can so forgive me if I put the wrong terms up, please! All we novices can do is learn from all you pros!!!

Thanks
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Bondo
Senior Member
Username: bondo

Post Number: 2247
Registered: 12-2006


Posted on Thursday, March 18, 2010 - 09:54 am:   Edit Post Delete Post View Post/Check IP

"Did I use the correct terms?"

Nope,... Not really...
It all started when you Hi-jacked this thread about exhaust Bellows, as per the outside transom assembly...
Hi-jacking threads does NOTHING but create Massive CONFUSION because it's 2 Totally Different Subjects...

Your Issue is the exhaust couplers Inside the boat...
The picture posted Right above this post is of the Outside Exhaust Bellows...
It isn't what you need, nor will it Work for what you're doing...

What you're calling an Arm is the Exhaust Riser...
Remove it,... pull the bolts,+ pull it Off...
No other way around it, the inch,+ 1/2 is Plenty of clearance...
Then install the Proper exhaust rubber coupler...
You'll also need the proper Gasket to reinstall the Riser...
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SC
Member
Username: daduckman

Post Number: 7
Registered: 03-2010
Posted on Thursday, March 18, 2010 - 10:36 am:   Edit Post Delete Post View Post/Check IP

Ok...thanks bondo...sorry I hi-jacked...really new at this and with all the pictures and such in my seloc manual it is hard to tell what is what. So I now know to put the accordion style out of my mind and go with an OEM part.
You are saying that I will not need to pull engine then to do this? However, I will need to take the advice of others saying that I need to get the new exhaust rubber coupler on with heating it up and using soap to slip it on?
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Bondo
Senior Member
Username: bondo

Post Number: 2251
Registered: 12-2006


Posted on Thursday, March 18, 2010 - 11:16 am:   Edit Post Delete Post View Post/Check IP

"However, I will need to take the advice of others saying that I need to get the new exhaust rubber coupler on with heating it up and using soap to slip it on?"

I'm saying when you REMOVE the Riser,+ put things back together, In Order, there shouldn't be any Problems...
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SC
Member
Username: daduckman

Post Number: 8
Registered: 03-2010
Posted on Thursday, March 18, 2010 - 03:19 pm:   Edit Post Delete Post View Post/Check IP

Ok...So the picture below is what I am looking for then? The exhaust elbow bellow.

Is there anything else I should look for? I am also going to change out the impeller and if there is a link or instructions on how to do this better than they are in the seloc manual I would appreciate it.
Exhaust Elbow Bellow
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SC
Member
Username: daduckman

Post Number: 9
Registered: 03-2010
Posted on Thursday, March 18, 2010 - 03:26 pm:   Edit Post Delete Post View Post/Check IP

One other thing. Will I need a water shutter as shown in picture? I noticed that in the exhaust manifold diagram it is listed for the lower exhaust pipe.
water shutter
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Guy Gaspar
Senior Member
Username: guyjg

Post Number: 5614
Registered: 08-2006
Posted on Thursday, March 18, 2010 - 03:56 pm:   Edit Post Delete Post View Post/Check IP

Definately!
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Guest
Member
Username: guest

Post Number: 60
Registered: 04-2009
Posted on Thursday, March 18, 2010 - 09:24 pm:   Edit Post Delete Post View Post/Check IP

Remove the studs from the elbow/riser whatever, and slide it off the manifold.
Best to spray the studs with penetrating oil and let them soak for a day. If the studs do not turn easily,they might be corroded,take care not to break them off.Try using a LITTLE heat from a propane torch if they don't turn, but be careful not to start a fire. Keep extinguisher near by.
If there's enough room,lock 2 nuts together on the stud to remove it. If there's not enough room you'll have to use vise grips on the stud.

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