Minnesota Classic Glastron Forum
General Category => General Discussion => Topic started by: dorelse on September 15, 2010, 01:08:13 PM
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Ok...so I've only every heard it referred to as a 'Pre-Alpha'. When I went to order the transom seal gasket, there are a lot of models apparently (MC-1, R, MR, Alpha 1, Alpha 1-GenII, etc).
Now...I know mine's not an Alpha. Mercruiser (according to the online exploded parts view at my local dealer) has done away with the gasket ring for my model and gone to a flat gasket that covers most of the outdrive.
On the one hand that's probably not all bad right, but that's assuming my 30 year old gimbal housing is still flat & level, etc.
I can't find anything really that identifies it besides the 898...is that really the entire power plant & drive model number? I mean, the outdrive even is stickered as an '898'.
(http://lh3.ggpht.com/_YWp9sNOOhnY/SqQux4BLFMI/AAAAAAAAFUQ/JE5B64oNA4c/s800/P9050069.JPG)
(http://lh6.ggpht.com/_YWp9sNOOhnY/Sr66xljh68I/AAAAAAAAFUQ/vEKCelmFS-A/s800/P9260134.JPG)
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There is a serial number stamped here on my drive .. yours is a newer drive than mine though. There is a number stamped somewhere that will identify what it is. RICH!!!
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Check this link
http://www.mercstuff.com/drive_id.htm (http://www.mercstuff.com/drive_id.htm)
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I probably should have worded my thread title better...
The gasket that I ordered today is the gasket for the transom bracket (gimbal housing, trim rams, etc, etc) to mount to the transom...not mounting the outdrive to the gimbal housing.
I'm being told that it has changed from the old round gasket that fit into the groove to a flat gasket. I'm concerned that that new void could be an issue.
This is the gasket I'm replacing...sorry for the confusion guys:
(http://lh6.ggpht.com/_YWp9sNOOhnY/S5QaYCKpbhI/AAAAAAAAFUQ/-iyztkaCWXY/s800/P3060146.JPG)
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oohhh,
Then I have no idea ;D
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I think I need part 14B on this site:
Transom seal mercruiser
1 / MR / Alpha one
OEM# 65533A1
http://www.sterndrive.info/alpha-one/gimbal_housing.html (http://www.sterndrive.info/alpha-one/gimbal_housing.html)
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Ya,
I think that is the same part I found
http://bpi.ebasicpower.com/c/MER2B/Seal+Kits,+Transom+for+Mercruiser (http://bpi.ebasicpower.com/c/MER2B/Seal+Kits,+Transom+for+Mercruiser)
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I'm not sure where you heard that the round ring type gasket isn't available anymore, all the transom assemblies used it since 1973. It's the ones prior to 1973 that used a flat gasket. Is far as know the round gasket should still be available from Mercury.
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I'm not sure where you heard that the round ring type gasket isn't available anymore, all the transom assemblies used it since 1973. It's the ones prior to 1973 that used a flat gasket. Is far as know the round gasket should still be available from Mercury.
Guy at the parts counter...his abilities scare me each & every time, the 'good' guy is on vacation. I ordered the one Grinder & I found online. It'll be here on Friday.
The 'good' guy knows all about Glastron Carlson's, used to work on them in the 70's & 80's, so trying to develop a good relationship with him.
He also knows the old Johnson 235 really well, so he's going to look at tuning it up and get it purring like it should be.
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Here's a trick for you for installing that gasket: use contact cement. Brush some in the groove of the transom assembly, and a light coat on one side of the gasket and let it sit about 10 minutes. When they become tacky start pressing it into the groove at the top and bottom and work your way outward to the sides while trying to keep the tension equal all the way around. Put the splice of the gasket where the two ends are joined together at the top.
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Here's a trick for you for installing that gasket: use contact cement. Brush some in the groove of the transom assembly, and a light coat on one side of the gasket and let it sit about 10 minutes. When they become tacky start pressing it into the groove at the top and bottom and work your way outward to the sides while trying to keep the tension equal all the way around. Put the splice of the gasket where the two ends are joined together at the top.
Isn't the gasket one piece? I've also read that you can take a rubber 'rope' and yeah, cut it to fit with the splice at the top (sealed of course).
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The gasket is one piece but is made as a straight piece of foam rubber, cut to length and glued together to form a ring.
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Doran,
Can you look at the gimbel housing and let me know how hard it looks to replace that trim hose? I have to replace mine and just wonering if I have to pull the housing? I heard there is a block that you can pull off the bottom and the hose is hooked to that. ???
Thanks
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Sure Shaun. It won't be going on for a few days...waiting on the gasket. If you haven't heard from me in a day or 2, shoot me a pm to remind me.
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OK.
Thanks
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Really not that hard and you do NOT need to pull the gimble housing off to get to those hoses. There is a juction block on the bottom side you remove with 2 bolts then pull it down. Then you can remove the 6 hoses which connect to it. I replaced all of my hoses a couple years ago.
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Actually Shaun Jason is wrong about that. The only way to fix that line is to pull that 305 and replace it with a 350! That's what I'd tell the spouse anyways! ;D
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i'm kinda goofy, and I didn't read all the way through all the reply's, but I have the seal you need, just send me your address and I'll get iu ton the way.
Only one thing .... the transom must be absolutely flat to installl this ring, the way it come ... Ok ?
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Red - Thanks so much, I've already ordered one. Shoot!
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Actually Shaun Jason is wrong about that. The only way to fix that line is to pull that 305 and replace it with a 350! That's what I'd tell the spouse anyways! ;D
Maybe in a year or two. That 305 dosen't run to bad I had the GPS with me last weekend and got 57.7 @4700 with 1/2 tank of gas and choppy water. Also the lake I was on is only about 3/4 mile long.
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Mine runs great too which means it will be all that easier to sell once I yank it! ;D
Seriously you got the 2BBl to spin that 21P Laser to 4700 RPM? My 4BBL could never get more than 4400-4500 RPMs w/21 P Laser I had on it.
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Would anyone like to explain the evolution of the mercruiser outdrive? I know there MR's, alphas, bravo's, and a few in between. But what's the basic differences between them. I just always wondered and know there is more to it than a liffting hook hole on top of the outdrive!
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Mine runs great too which means it will be all that easier to sell once I yank it! ;D
Seriously you got the 2BBl to spin that 21P Laser to 4700 RPM? My 4BBL could never get more than 4400-4500 RPMs w/21 P Laser I had on it.
Kip,
It was between 4650 and 4700 (if the tach is right?). With my 19p Alum I was at about 5000-5100. Mine has a 4 bbl on it. Not from the factory but someone put a Quadrajet on it. When I yank mine i'm going to look for a CVX 16 to stuff it in. I have heard that the chevy V8's won't fit but I have to try. I want to build a 383 stroker and find an Alpha SS or Gen II.
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OK Shaun, that makes me feel better. I didn't realize yours had a 4 BBl on it. Well you got my boat by almost 1 MPH. Best I've ever got out of it is 57.0!
You and Jeff need to get together. He wants to stuff a SB Chev into a CVX16 also! ;D
Jason:
Here's some stuff I know. Not complete by any means. Hopefully Rich will chime in.
The Alpha 1 Gen 1 was released in 1984. A tougher more durable drive with a greater trim range than the one it replaced. Rated for 300 HP at the crankshaft/input shaft. You can bolt a Alpha leg onto an MR drive.
The Alpha 1 Gen 2 came out in 1992. Rated at 300 HP at the prop. The water impellar design was improved. These drives also have drive oil resevoir tank inside the boat. Not sure of they're have been any major improvments since then. Far as I know the current drives are still called Alpha Gen 2's.
The Bravo's are a more stout, tougher drive that can handle higher HP's. They use cone clutches vs dog. The legs on the Bravo drives all interchange. The transom assemblies, gimbles and trim rams are all the same. No clue on years they were released/ or improved ect.
Bravo 1 - Found on most performance boats w/big block engines. Sometimes you'll see them mated to a SB.
Bravo 2 - Built for cruisers and made to run large diameter props. Not real popular due to the Bravo 3
Bravo 3 - Dual counter rotating props found on most cruisers and large bowriders, generally 21' and over.
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Outdrive Identification ...
http://www.mercstuff.com/drive_id.htm
http://www.sterndrives.com/merc/mid01.html
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Thanks guys. Interesting. The Blackhawk outdrive sure looks fun!!
Looks like call the Alpha Gen I the MR too. I always thought the one with the loop on top like mine is a MR but it's really an R.
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Will the gen II fit on a 898 gimbel housing?
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It should bolt up to the transom bell housing but the driveshaft might be a little longer than the pre-Alpha driveshaft so it might mean having to switch the input shaft with an older one. Also, the trim rams are a different length and won't mount correctly to the Alpha Gen II, the attachment point is a shorter distance to the gimbal and spread further apart.
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Hey guy's .. I got my computer back up tonite .. grrrrr. the Gen II will Not bolt up to the Alpha assy, it has about a 1/4" wider sprerad in the guide ... but I did have one that had been ground down to fit itn the Alpha assy, but I certainly don't recomend that. the Alpha drive, gen I is the same, but the upper bearing assy are a little bigger and handle more horse power ... either will fit though, the in-put shaft is longer on the Alpha, gotta take that in concideration for sure. The Gen II will handle more HP than some say ... I can attest to that...