engine from Bravo to Alpha
#1
Registered
Platinum Member
Thread Starter
Join Date: Feb 2004
Location: BELGIUM EUROPE
Posts: 182
Likes: 0
Received 0 Likes
on
0 Posts
engine from Bravo to Alpha
Need to convert a 2002 merc 5.0 carb engine which was coupled to a Bravo drive to fit with an Alpha drive.
What parts have to be replaced or taken out?
What parts have to be replaced or taken out?
#3
Gold Member
Gold Member
The entire transom assembly, inside and out, has to be replaced. The Alpha will not bolt up to a Bravo assembly. You'll aso need to set up the Alpha shift interupter which briefly kills the ignition as the Alpha changes gears. You may need new shift cables too. The cooling lines are different and will require modification.
With the Alpha you don't need the engine mounted water pump, it's built into the drive.
Question: Why would you change from the Bravo to Alpha???? The Bravo is much stronger than the Alpha.
There are more people switching up from Alpha to Bravo than the reverse.
With the Alpha you don't need the engine mounted water pump, it's built into the drive.
Question: Why would you change from the Bravo to Alpha???? The Bravo is much stronger than the Alpha.
There are more people switching up from Alpha to Bravo than the reverse.
#4
Registered
Join Date: Aug 2006
Location: IAD/FLL
Posts: 2,090
Likes: 0
Received 0 Likes
on
0 Posts
Perhaps he bought the engine to install in an Alpha boat?
Also fwiw as far as engines go, as long as the alignment is good and the proper coupler is installed, they don't know what drive they're bolted to.
So depending on exactly what the situation is, you need to swap the control pieces from the old motor, possibly the coupler/bellhousing, properly rig up the raw water cooling.
Also fwiw as far as engines go, as long as the alignment is good and the proper coupler is installed, they don't know what drive they're bolted to.
So depending on exactly what the situation is, you need to swap the control pieces from the old motor, possibly the coupler/bellhousing, properly rig up the raw water cooling.
#5
Registered
Platinum Member
Thread Starter
Join Date: Feb 2004
Location: BELGIUM EUROPE
Posts: 182
Likes: 0
Received 0 Likes
on
0 Posts
[QUOTE=handfulz28;2240971]Perhaps he bought the engine to install in an Alpha boat?
QUOTE]
Yes, engine came out Bravo drive boat and goes now in Alpha drive boat
Thx for all replys
QUOTE]
Yes, engine came out Bravo drive boat and goes now in Alpha drive boat
Thx for all replys
#6
Registered
Join Date: Oct 2005
Location: Ankeny IA
Posts: 314
Likes: 0
Received 0 Likes
on
0 Posts
One thing to watch is the bravo coupler may interfere with the water inlet hose coming off the drive. It did on mine (Merc 383 to Alpha gen 1)
I needed to add a thru- transom pickup and seastrainer for the bravo pump. I capped the alpha pump off
I had to cut the nipple down and use a 5/8" hose, ditching the adaptor (the 5/8 hose clamped directly to the nipple) I have to bend the hose immediately off the nipple. It is still close, abouut 1/4 from interfering.
You could avoid all this mess and trouble by using an alpha coupler. I would have had I known before hand.
I needed to add a thru- transom pickup and seastrainer for the bravo pump. I capped the alpha pump off
I had to cut the nipple down and use a 5/8" hose, ditching the adaptor (the 5/8 hose clamped directly to the nipple) I have to bend the hose immediately off the nipple. It is still close, abouut 1/4 from interfering.
You could avoid all this mess and trouble by using an alpha coupler. I would have had I known before hand.