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94 Merccruiser 7.4 Drive Belt Replacement

J

jpflhr

Member
Issue happened when I was on the water after changing alternator just reattached exsisting belt . then engine lost power like out of gas and then i looked and all belts were off pullys with all this black belt stuff on the engine - Only belt left good was the Pw sterring belt -- Shreaded and broke alternator belt and the seawater belt not sure what happened to that ?

Do you have to remove camshaft pulley to change out seawater pump drive belt? Issue is how do you put on new belt no room between the camshaft pulley and crankshaft pully
The alternator belt no issue with that and the power sterring belt no issue with installing that --

And to confirm there are 3 belts correct -- One for alternator one for power sterring and one for seawater pump?


 

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Never had to swap the belts on one of those but did do a couple of the combined fuel pump-sea water pump jobs.

As you noticed, the manual doesn't provide any help. If the belt won't go between them, one of the pullies will have to be pulled.

Yes, three separate belts.
 
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