Offshoreonly.com

Offshoreonly.com (https://www.offshoreonly.com/forums/)
-   General Q & A (https://www.offshoreonly.com/forums/general-q-20/)
-   -   Installing new motor with trans help (https://www.offshoreonly.com/forums/general-q/289292-installing-new-motor-trans-help.html)

kakarot 12-25-2012 05:36 PM

Installing new motor with trans help
 
If anyone could guide me in the right direction here's my issue

I have a Jaws 24 with an alpha 1 gen 2 and a carb 454 I got a good deal on a 540 carb with transmission and I believe it's a TRS drive.

What would I need to install the new set up?

kakarot 12-25-2012 05:54 PM

http://i21.photobucket.com/albums/b2...psd9f74a16.jpg
http://i21.photobucket.com/albums/b2...ps44c7b090.jpg
http://i21.photobucket.com/albums/b2...ps5128ba77.jpg
http://i21.photobucket.com/albums/b2...ps9e5900cb.jpg

tcelano 12-25-2012 07:48 PM

You should be able to swap all the accessories and bellhousing from the old block to the new.

However, you should consider that an Alpha is barely up to the task of harnessing a mild 454. The torque from a 540 will surely twist it up in short order.

kakarot 12-25-2012 09:02 PM

I know that's why am asking if the new motor will fit with the transmission and the new drive on the picture

picklenjim 12-25-2012 09:48 PM

Keep in mind the engine is going to sit that much farther forward (length of trans) in the engine bay. Do you have that much space in front of your engine now? Then the hole in the transom will need to be reworked for the TRS gimble housing. It may need to be raised depending how long a Alpha is compared to a TRS.

The drives in the pic on the boat aren't TRS's. Don't know what the one is laying on the ground next to the engine, can't see it.

kakarot 12-25-2012 09:52 PM

I think I do have some space tho it will be really tight, also looking at it I think is not a trs I think it's a speed master drive

kakarot 12-25-2012 10:25 PM

I'll post pics of the drives tmrw

MILD THUNDER 12-25-2012 11:47 PM

Just by looking at the tailstock on the transmission, that's a Speedmaster setup. Probably a #3 Drive my guess. #3 will have a 19 spline propshaft. 3A will have a 26 spline shaft.

Since it looks like you have the transom assembly for the speedmaster, you can always bolt a #4 or #5 drive on, if the #3 Setup was too tall. The #4 will allow you to lower the engine in the hull, and still have a good x dimension.

From the pic, it looks as if you may be missing the "ears" that bolt to the transmission, then to the inner transom plate. They used them if no mid plate was used, which I don't see in the pic. I do just happen to have these ears, and for a reasonable price!

kakarot 12-26-2012 08:36 AM

How far more would this set up push my motor forward?

Mbam 12-26-2012 10:10 AM

Thunder has it right, if my memory is correct, will move it forward about 12"

picklenjim 12-26-2012 10:24 AM

I think I would go through that engine before I would install it in a boat. Looks to have been neglected. Noticed the date on the pics. Has it been sitting in the yard under that blue tarp for 7 years?

kakarot 12-26-2012 12:00 PM

Yea ill crank it up before buying it so it should all bolt
Up and move 1 ft forward?

mrquad1 12-26-2012 01:01 PM

you will need to have inner gimble plate installed to get your measurments for engine mounts

dammmagnum 12-26-2012 02:42 PM


Originally Posted by picklenjim (Post 3837974)
I think I would go through that engine before I would install it in a boat. Looks to have been neglected. Noticed the date on the pics. Has it been sitting in the yard under that blue tarp for 7 years?

The matching engine to this one in the boat overheated from a crack block or some other issues in less then a couple of hours of running it, so check it out before buying it.

kakarot 12-26-2012 03:30 PM

Correct magnum I was told by the guy that the other motor overheated because it had a cracked block.

I meassure right now I have a 454 with alpha 1 and I have exactly 12 inches from the engine to the firewall I guess it won't fit

Rookie 12-26-2012 06:26 PM

Wouldn't it be easier to just bolt up a Bravo? Same transom cutout hole. +2 more holes in the transom for the transom assembly and a couple of bolts? And a better selection of inexpensive props. I think this is going to become a mess pretty quick.

mike tkach 12-26-2012 08:50 PM

he should be able to sell the transmissions and ssm drives for more than the cost of bravo drives,i would think.

kakarot 12-27-2012 09:11 AM

I guess It's better off selling my boat and buying another one with a worthy drive installed...

Rookie 12-27-2012 11:41 AM


Originally Posted by kakarot (Post 3838425)
I guess It's better off selling my boat and buying another one with a worthy drive installed...

Not at all. It would just be easier to install a Bravo then converting your Jaws to a transmission and #drive boat. Also as Mike stated earlier I think you would be money and labor ahead if you did the Bravo conversion.

My dumbass would run the Gen2 Alpha till it popped. Weighed the hours and cost of another Vs. the $$$ of the conversion. You have a small light boat. If you get a season or 2 out of it that is a bonus. And you can replace the upper or lower with an inexpensive SEI. I don't think you are getting much out of an Alpha selling it on Craigslist.
I would be more worried about that engine than finding a drive. Make sure it runs on a stand before you buy. Then leak down test.

http://www.sterndrive.cc/

dereknkathy 12-27-2012 04:21 PM

i would go with rookie's plan. plus the alpha will run bravo props. you can see how the boat likes the current prop height with that much power, then get a bravo set-up, and with a shortie and spacers you have lotsa options for x-dim.

kakarot 12-27-2012 08:15 PM

Well just found out that my motor has blown head gasket...and the drive is still leaking oil after I spent 300$ servicing it to fix the leak... Now I don't know what to do....

Rookie 12-27-2012 09:46 PM


Originally Posted by kakarot (Post 3838681)
Well just found out that my motor has blown head gasket...and the drive is still leaking oil after I spent 300$ servicing it to fix the leak... Now I don't know what to do....

Sorry to hear that. Sometimes this hobby/sport kicks you in the balls once you think you are getting on the right track. Does the Alpha leak or the drive that requires the transmission. Also the engine in the pics has the bad head gasket?

kakarot 12-27-2012 09:59 PM

Yes indeed big slap on the face, the alpha seems to have still a bad seal and is leaking and my 454 has a bad head gasket not the one on the picture.

picklenjim 12-27-2012 10:09 PM

Where's the Alpha leaking? Can you post a pic?

picklenjim 12-27-2012 10:14 PM

Can someone tell me is that correct the way they have the water plumbed on that 540? Looks like they have it running through 2 coolers before the seawater pump.

FIXX 12-27-2012 10:24 PM

fixx
 

Originally Posted by picklenjim (Post 3838746)
Can someone tell me is that correct the way they have the water plumbed on that 540? Looks like they have it running through 2 coolers before the seawater pump.

yes thats normal on a bell housing set up...btw its only one cooler..the rear one is for the trans..

mike tkach 12-27-2012 10:33 PM

mike,i have never seen it done that way,everyone i have seen ,water into pump,then out to coolers.

f_inscreenname 12-27-2012 10:46 PM


Originally Posted by mike tkach (Post 3838756)
mike,i have never seen it done that way,everyone i have seen ,water into pump,then out to coolers.

It all depends on room and who is doing it. My Nova 24 has coolers after the pump. My Nova 19 has a cooler before the pump. Just the way it works best for the amount of room thats there. All 3 motors use a basic 454 cooling system configuration.

mike tkach 12-27-2012 11:22 PM

i guess as long as water is flowing,it will work.

MILD THUNDER 12-27-2012 11:37 PM

Ya that's the old "single" cooler bellhousing. Only a cooler on one side. Ive seen coolers plumbed before the sea pump. Nice part about that is when you smoke a rubber impeller, the pieces go straight into your engine and stay there forever. :eekdrop: Best to plumb a cooler between the pump and engine to help prevent that scenario.

picklenjim 12-28-2012 12:15 AM


Originally Posted by dammmagnum (Post 3838063)
The matching engine to this one in the boat overheated from a crack block or some other issues in less then a couple of hours of running it, so check it out before buying it.


Originally Posted by MILD THUNDER (Post 3838770)
Nice part about that is when you smoke a rubber impeller, the pieces go straight into your engine and stay there forever.

May be that's what happened to the other engine!


Originally Posted by mrfixxall (Post 3838751)
yes thats normal on a bell housing set up...btw its only one cooler..the rear one is for the trans..

The rear one is for the trans true. But it's still a cooler!

kakarot 12-28-2012 08:09 AM

Here's where my alpha gen2 still leaking

http://i21.photobucket.com/albums/b2...psb6a94b70.jpg

picklenjim 12-28-2012 09:33 AM

Can you back out the camera and show a pic of the drive and this area?

kakarot 12-28-2012 04:13 PM

Ill post a pic later, I got a good deal on a pair of 200HP Mercury BlackMax with rigging and everything for 2700$


All times are GMT -5. The time now is 09:35 PM.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.