Hey all,
I've got a strange issue with my Saginaw power steering setup - not sure if this is normal/fixable behavior if if there is a bigger issue.
The steering runs fine 99% of the time, no whine, no belt squeal, etc. It's a new Cardone rebuilt pump (maybe 50-75mi on it so far). The box is also a Cardone rebuild with ~600mi.
1. I noticed last week that at full "lock" I would get a weird shudder in the steering. I figured I didn't have the belt tight enough, as it seemed kind of loose, so I tightened it up. I hadn't driven it since.
2. Yesterday, I backed out of my garage (which involves a sharp turn in reverse) and the truck immediately "flipped" the power steering belt upside down.
3. Since the above trashed the belt (wouldn't track in the pulley anymore) I replaced it. I still get the "shudder" sound at full lock to the left or right, and noticed that the pump's pulley STOPS at full lock. The Shudder is the belt as the crank keeps moving and the power steering pump locks up.
4. Upon Further investigation I've realized that this only occurs when I max out the turns in the power steering box (not hitting the steering stops at the knuckles). The issue is, the steering is strong enough that, once I hit the stops at the knuckles, I can push right through and shift the truck on its springs until the box bottoms out and locks up the pump with almost no effort.
Is this normal? If so, is there a way to prevent it? Do I just push out the steering stops farther (cutting down my turn radius) in an effort to force the box to stop "pushing" before it maxes out? It's a 4 1/4 turn box. Right now, I have it set to have 2 turns in both directions. The knuckle stops hit with about 1/8 turn left either direction. But as I mentioned, the steering is so powerful it just pushes the truck sideways that last 1/8 turn until the box hits its maximum.
Is there not a relief valve in the pump that's supposed to prevent pressure lock?
I've got a strange issue with my Saginaw power steering setup - not sure if this is normal/fixable behavior if if there is a bigger issue.
The steering runs fine 99% of the time, no whine, no belt squeal, etc. It's a new Cardone rebuilt pump (maybe 50-75mi on it so far). The box is also a Cardone rebuild with ~600mi.
1. I noticed last week that at full "lock" I would get a weird shudder in the steering. I figured I didn't have the belt tight enough, as it seemed kind of loose, so I tightened it up. I hadn't driven it since.
2. Yesterday, I backed out of my garage (which involves a sharp turn in reverse) and the truck immediately "flipped" the power steering belt upside down.
3. Since the above trashed the belt (wouldn't track in the pulley anymore) I replaced it. I still get the "shudder" sound at full lock to the left or right, and noticed that the pump's pulley STOPS at full lock. The Shudder is the belt as the crank keeps moving and the power steering pump locks up.
4. Upon Further investigation I've realized that this only occurs when I max out the turns in the power steering box (not hitting the steering stops at the knuckles). The issue is, the steering is strong enough that, once I hit the stops at the knuckles, I can push right through and shift the truck on its springs until the box bottoms out and locks up the pump with almost no effort.
Is this normal? If so, is there a way to prevent it? Do I just push out the steering stops farther (cutting down my turn radius) in an effort to force the box to stop "pushing" before it maxes out? It's a 4 1/4 turn box. Right now, I have it set to have 2 turns in both directions. The knuckle stops hit with about 1/8 turn left either direction. But as I mentioned, the steering is so powerful it just pushes the truck sideways that last 1/8 turn until the box hits its maximum.
Is there not a relief valve in the pump that's supposed to prevent pressure lock?
