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Rear Motor Mount Setup

Old 05-12-2010 | 10:07 PM
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Default Rear Motor Mount Setup

Boat is a 38 Fountain with SSM #4 drives. Bought boat without power. The boat had rear engine plates, as the aluminum L brackets are still there.

My original plan was to use the ears that mount to the tranny, and get thru bolted to the inner transom plate. However, the ears i had wont work. I have located a set, but now thinking about going to the rear plates.

I am guessing the rear plates are pretty much a standard like the front ones? My bellhousings are the dual cooler type. Im guessing i just need to remove them, and have them machined so the plates can sandwich in there?

Just trying to figure the best route to go on this.
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Old 05-12-2010 | 10:11 PM
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bilge
Attached Thumbnails Rear Motor Mount Setup-fountain-022.jpg   Rear Motor Mount Setup-fountain-021.jpg  
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Old 05-12-2010 | 10:15 PM
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I have a set of v mounts front tube / rear plate call if intrested
but you are on the right path.
Jim
573 346 5250
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Old 05-12-2010 | 10:21 PM
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I got one rear plate from my buddy. Might need one more. Good on the fronts.
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Old 05-12-2010 | 10:31 PM
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I was gonna sell both sets for what i paid 300
let me know I have family in Chicago. might help on shipping.
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Old 05-12-2010 | 10:40 PM
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Originally Posted by MILD THUNDER
Boat is a 38 Fountain with SSM #4 drives. Bought boat without power. The boat had rear engine plates, as the aluminum L brackets are still there.

My original plan was to use the ears that mount to the tranny, and get thru bolted to the inner transom plate. However, the ears i had wont work. I have located a set, but now thinking about going to the rear plates.

I am guessing the rear plates are pretty much a standard like the front ones? My bellhousings are the dual cooler type. Im guessing i just need to remove them, and have them machined so the plates can sandwich in there?

Just trying to figure the best route to go on this.
the rear motor plate mounts between the blobk&THE BELLHOUSING,NO MACHINE WORK NECESSARY.
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Old 05-12-2010 | 11:05 PM
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Originally Posted by mike tkach
the rear motor plate mounts between the blobk&THE BELLHOUSING,NO MACHINE WORK NECESSARY.
yes, but the starter mounts to the bellhousing, so if i just bolt the plates on, the starter gear wont engage far enough.
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Old 05-13-2010 | 08:28 AM
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If your starter is a rear mount (bell housing mount), there were two part #'s for the bell housing...with and without engine mount plate. The without bell housing could be milled/modified if necessary. You could also look at where starter gears are wearing to see if the starter can handle a 1/4" less engagement if the rear mount plates are added.
At then end of the day, the Gil type tranny support mount is likely going to be less re-rigging and easier to align the engines. To do this right, it is really a pretty big project. This is likely why the rear mount plate was removed.
When we added the rear plates, we used a short block, alignment tools, new angle mounts and marked all in place. Then made all and drilled to fit.
In many boats, it will be difficult to work with a fully rigged engine...no room.
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Old 05-13-2010 | 09:48 AM
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I went through the exact same issue. Project boat with no motors and #3 drives. There were rear plate mounts so I bought front and rear plates. We assembled and installed the motors with front and rear mounts. Went through 2 sets of starters before we realized the bell housing had to be machined 1/4". Anxious to get on the water we took out the plates and bought the transmission to transom plate mounts. Ran this way for 5 years. This year we pulled motors and went back to rear plates (after machining the bellhousings I already have).

That is why I am selling the transmission mounts you inquired about.

You either have to buy "cut" bellhousings or machine what you have. That lesson cost me a few thousand dollars.

As much as I would like to sell my transmission mounts, if you have the rear plates I would machined the bell housings and use the rear mounting plates. In my opinion it ends up with a very solid installation.

Good luck,
Doug
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Old 05-13-2010 | 10:15 AM
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From: Between A Womans Leggs in IL
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Originally Posted by MILD THUNDER
Boat is a 38 Fountain with SSM #4 drives. Bought boat without power. The boat had rear engine plates, as the aluminum L brackets are still there.

My original plan was to use the ears that mount to the tranny, and get thru bolted to the inner transom plate. However, the ears i had wont work. I have located a set, but now thinking about going to the rear plates.

I am guessing the rear plates are pretty much a standard like the front ones? My bellhousings are the dual cooler type. Im guessing i just need to remove them, and have them machined so the plates can sandwich in there?

Just trying to figure the best route to go on this.
Joe,no machine required,remove bell housing,remove flywheel,knock out the doll pins,install longer ones reverse prociedure but make sure you loc tight every bolt (Blue)..

i got you covered on the starters too!
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