Transome Seal kit Dilema.

menglor

Petty Officer 3rd Class
Joined
Jul 18, 2011
Messages
96
Hi guys, This stuff is sooooo confusing for me, I Cant seem to nail down what parts to order from these 2 items.

first of all. I want to order a Transom Seal Kit.

My Outdrive is a MC-1 accord to a few people here who pointed in me that direction.

so, based on this, I am stuck trying to figure out the right part numers for the kit I need.

2 numbers show up as possibles.

18-8205
and
18-2601

neither of the 2 kits seem to say this is the one for the MC-1, but if you go to various order sites, its all very confusing. even between the 2 pictures of the gasket, they look identicle execpt on looks inverted in the picture.

DSCN0383.jpg

Now Question #2 has me even more perplexed.

I want to order a Rotor, Cap, condensor ... but one question that comes up is "Prestolite" vs "mercury marine"

how do you know which is which?
 

achris

More fish than mountain goat
Joined
May 19, 2004
Messages
27,468
Re: Transome Seal kit Dilema.

Hi guys, This stuff is sooooo confusing for me, I Cant seem to nail down what parts to order from these 2 items.

first of all. I want to order a Transom Seal Kit.

My Outdrive is a MC-1 accord to a few people here who pointed in me that direction.

so, based on this, I am stuck trying to figure out the right part numers for the kit I need.

2 numbers show up as possibles.

18-8205
and
18-2601

18-8205 is for V8s with an exhaust tube (it says so quite clearly in the description).
18-2601 is for engines with an exhaust bellows, not a tube...

As we don't all have perfect memories (and we're reading MANY posts a day, all with different engines) can you say what engine you have in each new thread.

menglor said:
...Now Question #2 has me even more perplexed.

I want to order a Rotor, Cap, condensor ... but one question that comes up is "Prestolite" vs "mercury marine"

how do you know which is which?

I would go out and look at the distributor. But maybe I'm a bit simple and look for easy answers, not 'divine intervention'.... :D
 

achris

More fish than mountain goat
Joined
May 19, 2004
Messages
27,468
Re: Transome Seal kit Dilema.

OK... I just did a search on your previous posts (luckily you haven't posted too many for me not to bother with the search) and you're the guy with the 75-76 Ford 351.

Give me some time and I'll see if I can find the right one for you....
 
Last edited:

achris

More fish than mountain goat
Joined
May 19, 2004
Messages
27,468
Re: Transome Seal kit Dilema.

OK.. those kits are not for when you remove the gimbal housing off the back of the boat... Their name is mis-leading. They are for doing everything EXCEPT taking the gimbal housing off, which is what you want to do, yes? What you need is gasket 27-65373... If you want to do the gimbal bearing and all the bellows at the same time THEN you would use kit 18-2601....

HTH....
 

haulnazz15

Captain
Joined
Mar 9, 2009
Messages
3,720
Re: Transome Seal kit Dilema.

If he is replacing the transom seal, here is a good pic of the difference between the cork gaskets for the MC-1 drives. Gawd, that pic with all of the sealant on it looks like this should have been done a long time ago. Did you check the transom for rot?

http://mercstuff.com/images/transomgasket1.jpg
 

menglor

Petty Officer 3rd Class
Joined
Jul 18, 2011
Messages
96
Re: Transome Seal kit Dilema.

So, yes, thats the correct engine for the boat I am investigating at the moment, and Ya, I agree the caulking around the gimble sshould have been replaced long before.

However, I just bought the boat. its only about a month old now (to me) so I am going through the list of things it needs for me to put it into the water.

Now, I just dismantled a 19 foot stingray with a Apha Gen 1 on it, but I cant re-use it because its in a million pieces, and its a bit funny, I am reading your posts, and your talking about a cork gasket, but on my stingray gimble housing i have for my Gen 1, it looks like a thick rubber gasket.

http://image.usedottawa.com/photos/03/31/21507431_640.jpg

So yet another thing I am going to have to go back and verify :) I have to say, My dad is loving all the family trip's to his place to visit. I have heard it say, Boating brings the family closer,

As for rot, I cant see any, I poked around a little since I purchased it, and I havent seen anything that screams rot, I wish I had a better place to store it where I can work on it. but right now thats not an option, so I am almost afraid to start ripping things apart now. I rather wait and get it back home when the snow is starting to go.

I still need to survive Xmas financially :) I cant start too many projects right now.

My goal / plan was to get a huge list of parts that I need and do a bulk order and save money, then go to the local marine shop and order the one 'of that I will need as I assemble it.
 

haulnazz15

Captain
Joined
Mar 9, 2009
Messages
3,720
Re: Transome Seal kit Dilema.

That is true. The MC-1's used cork gaskets as the transom/gimbal housing are flat surfaces. The Alpha I's and newer use a rubber o-ring that fits in a shallow groove on the gimbal housing. There is no difference in the transom-back equipment for a GM or Ford setup, although the drive itself may have a different gear ratio depending on engine size. (Ford 351 (233) Drive was a 1.32 ratio, GM 350 (260) Drive was a 1.50 ratio). Either way, the gaskets are the same for either. The inner transom plate will be different because of the rear motor mount locations.
 

achris

More fish than mountain goat
Joined
May 19, 2004
Messages
27,468
Re: Transome Seal kit Dilema.

...Now, I just dismantled a 19 foot stingray with a Apha Gen 1 on it, but I cant re-use it because its in a million pieces, and its a bit funny, I am reading your posts, and your talking about a cork gasket, but on my stingray gimble housing i have for my Gen 1, it looks like a thick rubber gasket....

That's right. Merc used a flat cork/rubber gasket as the transom seal right up to the point they changed from internal trim sender and switch to gimbal ring hinge pin mounted senders. Then is was a big rubber 'O' ring style seal in a shallow groove. Approximately 1977.

Chris.......
 

menglor

Petty Officer 3rd Class
Joined
Jul 18, 2011
Messages
96
Re: Transome Seal kit Dilema.

wow, good thing to know, I would have ordered the wrong part yet again.


sHESH. thanks all ever so much
 

Pete104

Lieutenant
Joined
Apr 30, 2011
Messages
1,439
Re: Transome Seal kit Dilema.

Uhm, Maybe you oughta see how much moisture that transom has got now! Just so you don't put too much into this unit later.
 

menglor

Petty Officer 3rd Class
Joined
Jul 18, 2011
Messages
96
Re: Transome Seal kit Dilema.

Yes, its something I and seriously considering.

I am now thinking , I need to head up to my dads and pull off the gimble and bring it home as a winter project now.

it wasnt something I was planning on , but its becoming more of a must do now, rather then a must do later.

rebuilding a transome is almost too big of a project for me right now, not sure I have that kind of stamina. but ya, its gotta get done.
 
Top