Closed Cooling System Part # 860234A1

[Aerocraft RI]

Having trouble installing on engine Serial # OL374700 5.7l 350 MAG MPI Alpha/Bravo. Bracket that the Heat Exchanger attaches to, comes in contact with the serpentine belt. Not allowing the installation. Does anyone have any information to give. Mercury rep says not sure why I'm having this issue. Engine and Heat Exchanger match, based on Service manual and Part manual, both are from Mercury.

 

[Scott06]

Having trouble installing on engine Serial # OL374700 5.7l 350 MAG MPI Alpha/Bravo. Bracket that the Heat Exchanger attaches to, comes in contact with the serpentine belt. Not allowing the installation. Does anyone have any information to give. Mercury rep says not sure why I'm having this issue. Engine and Heat Exchanger match, based on Service manual and Part manual, both are from Mercury.

Why dont you post a pic of the engine and bracket where it is hitting the belt. Wonder if belt is on wrong or if someone added the seawater pump separate. Is the engine an alpha model originally as you list both alpha/bravo above ?

 

[alldodge]

Having trouble installing on engine Serial # OL374700 5.7l 350 MAG MPI Alpha/Bravo. Bracket that the Heat Exchanger attaches to, comes in contact with the serpentine belt. Not allowing the installation. Does anyone have any information to give. Mercury rep says not sure why I'm having this issue. Engine and Heat Exchanger match, based on Service manual and Part manual, both are from Mercury.

Pic would help but my guess is the belt is not routed correctly

Most serpentine belts rotate the circulating water pump in opposite direction of the crankshaft

 

[Fun Times]

See if the following info may help any.

NEW CLOSED COOLING KITS & SERPENTINE BELTS | Service Bulletin | Crowley Marine

07-APR-2000 - Manufacturer Service Bulletin: NEW CLOSED COOLING KITS & SERPENTINE BELTS

www.crowleymarine.com

 

[Aerocraft RI]

Aerocraft R.I. interesting reading. I have a similar issue , had conversation with Mercury rep. The end result was the same. Really no help in the reps reply. Does anyone know , is it a matter of relocating power steering and alternator. Changing the routing of the serpentine belt. Possibly incorporating necessary brackets, for relocating power steering pump and alternator. please respond if anyone has information relating to my issue.

 

[alldodge]

Which belt do you have?
Post a pic of the pulleys on the motor?

 

[Aerocraft RI]

My engine is Mfg date 04/26/1999 it's a MCM MPI 350 5.7L Alpha/Bravo. It is fitted with a serpentine belt. The water circulator pump is located bottom left on the engine, the alternator is located just above lower right side of engine. Power steering pump top right of engine. If I knew how to attach a picture I would.Sorry at a disadvantage with that.

 

[alldodge]

To attach pic, select "Attach files" bottom left of window used to enter response. Go and find where pic is at and select open

 

[alldodge]

Your saying Alpha and Bravo and no closed cooling

Your belt should be top left post 3 if it is an Alpha

Your belt should be top right post 3 if it is a Bravo

 

[Aerocraft RI]

That worked, thanks for the help posting.

 

[Aerocraft RI]

That worked, thanks for the help posting.

 

[alldodge]

Ok you have belt installed as it should be. With it still slipping them need to know what is the part number of the belt being used

 

[Aerocraft RI]

I will have to look up the part #. But the issue is not the belt slipping. It's not being able to install the heat exchanger part# 860234A1. While trying to install onto engine, it touches the serpentine belt, not allowing it to be installed.

 

[alldodge]

The Pic u posted does not show a HE

 

[Aerocraft RI]

The heat exchanger is not able to be installed, but I have a picture of it.

 

[alldodge]

If I I understand you correctly , you need to use belt arrangement post 4 bottom right.

Meaning you need another bracket to move belt lower on the top

 

[Aerocraft RI]

Yes, I'm thinking it's the only way to make the installation of the heat exchanger work.

 

[Aerocraft RI]

i understand what your saying but I really don't want to remove the power steering ability. On my boat. If I don't have to.

 

[alldodge]

i understand what your saying but I really don't want to remove the power steering ability. On my boat. If I don't have to.

Not required, look closely at the closed cool Pic, it just needs one additional idler pully and a slightly longer belt

 

[dubs283]

In order to convert a raw water cooled mcm engine like the one you posted a picture of you will need more than just the heat exchanger p/n and picture you posted

Mercury sells an engine specific kit with the necessary heat exchanger, gaskets, brackets, hoses, idler pulley, etc... required. You may also need to replace the p. s. pulley and belt. The pulley and belt kit is separate from the heat exchanger kit and is engine specific as well