Power Steering Pump - Angled Mount

Jmunk

Petty Officer 1st Class
Joined
Jan 31, 2007
Messages
328
I have a 4.3MPI with serial number: 2A185156.

I recently noticed when looking straight down onto the serpentine belt that the power steering power has an aggressive tilt inward. It has three mounting one, one on the front and two on the rear that fasten on the rear studs. All the fasteners are tight and the rear lower stud has a spacer on it. It seems that the spacer could be longer and that would bring the pulley out square with the other, then it may need to be driven further onto the pump shaft, not entirely sure.

The mounting bracket/plate for the rear two bolts is very thick and sturdy, I can see that bending. I can across another thread and found they had the same issue and I borrowed their photo as I didn’t get one. Seems odd to find another engine with the same issue like this, have I overlooked something? Seems the other person with the issue loosen up the bottom bolt and that brought it out but I would think all the fastners should all be snug and perhaps add a few washers to the stud along with the spacer that’s already there?
 

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Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
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53,024
If your pulley is off and the belt isn't aligned, adjust the pulley installation until it's aligned

The pulley installation or removal requires a power steering pulley tool
 

Scott06

Fleet Admiral
Joined
Apr 20, 2014
Messages
7,555
I have a 4.3MPI with serial number: 2A185156.

I recently noticed when looking straight down onto the serpentine belt that the power steering power has an aggressive tilt inward. It has three mounting one, one on the front and two on the rear that fasten on the rear studs. All the fasteners are tight and the rear lower stud has a spacer on it. It seems that the spacer could be longer and that would bring the pulley out square with the other, then it may need to be driven further onto the pump shaft, not entirely sure.

The mounting bracket/plate for the rear two bolts is very thick and sturdy, I can see that bending. I can across another thread and found they had the same issue and I borrowed their photo as I didn’t get one. Seems odd to find another engine with the same issue like this, have I overlooked something? Seems the other person with the issue loosen up the bottom bolt and that brought it out but I would think all the fastners should all be snug and perhaps add a few washers to the stud along with the spacer that’s already there?
Mine is the same way tends to Chaffe the outside edge of the belt but works fine otherwise. until your post I assumed I messed something up when I repowered. I assume the belt pulls the pump i ward some due to the tension and bracket is not beefy enough. My boats a 2004 so seems to hold up ok
 

Jmunk

Petty Officer 1st Class
Joined
Jan 31, 2007
Messages
328
The mounting bracket is probably 3/16” or so
steel so more then strong enough but it’s flat and the body of the pump isn’t. I see why they used a spacer on the lower rear mounting stud but seems perhaps the pump body changed at some point and the length of the spacer didn’t hence the tilt. I’ll throw on a few stainless washers and see if it squares up and then see if I need to press the pulley on further.

The angled pump is something that once you see it, it’s what you see first everything time you look at the engine.
 
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