Power Steering pump mount
Thread Starter
Race Director
Joined: Jun 1999
Posts: 14,924
Likes: 9
From: Merritt Ils Fl
Power Steering pump mount
Son has a 71 vert. When the engine is reved the slightest bit you can see the PS pump flex inward. Seems to me there is a bracket/brace missing. My plan is to install one of these:
http://www.ecklers.com/catalogsearch...cket&x=30&y=12
I'm guessing the brace bolts to the PS bracket then to some point on the engine. Anyone have a clue where on the engine? The car is not here, I gotta go to it,Orlando, this weekend, would like to take all the pieces and parts I need with me.
Thanks C3 gurus.
http://www.ecklers.com/catalogsearch...cket&x=30&y=12
I'm guessing the brace bolts to the PS bracket then to some point on the engine. Anyone have a clue where on the engine? The car is not here, I gotta go to it,Orlando, this weekend, would like to take all the pieces and parts I need with me.
Thanks C3 gurus.
Le Mans Master
Joined: Jan 2000
Posts: 8,918
Likes: 27
From: New Hill NC
Son has a 71 vert. When the engine is reved the slightest bit you can see the PS pump flex inward. Seems to me there is a bracket/brace missing. My plan is to install one of these:
http://www.ecklers.com/catalogsearch...cket&x=30&y=12
I'm guessing the brace bolts to the PS bracket then to some point on the engine. Anyone have a clue where on the engine? The car is not here, I gotta go to it,Orlando, this weekend, would like to take all the pieces and parts I need with me.
Thanks C3 gurus.
http://www.ecklers.com/catalogsearch...cket&x=30&y=12
I'm guessing the brace bolts to the PS bracket then to some point on the engine. Anyone have a clue where on the engine? The car is not here, I gotta go to it,Orlando, this weekend, would like to take all the pieces and parts I need with me.
Thanks C3 gurus.
Drifting
Joined: Jun 2008
Posts: 1,495
Likes: 134
From: Blanco County, TX
Do you mean that the PS pump moves relative to the frame or relative to the engine? The PS pump is mounted low on the driver's side of the block so if the PS pump and engine are moving relative to the frame, I'd look at the motor mounts. If the PS pump moves relative to the engine, I'd look at the mounting bracket. It may be as simple as a loose bolt(s). Does the belt stay tight when you rev the engine? I'm assuming the PS pump otherwise operates normally.
Thread Starter
Race Director
Joined: Jun 1999
Posts: 14,924
Likes: 9
From: Merritt Ils Fl
Do you mean that the PS pump moves relative to the frame or relative to the engine? The PS pump is mounted low on the driver's side of the block so if the PS pump and engine are moving relative to the frame, I'd look at the motor mounts. If the PS pump moves relative to the engine, I'd look at the mounting bracket. It may be as simple as a loose bolt(s). Does the belt stay tight when you rev the engine? I'm assuming the PS pump otherwise operates normally.
Belt does not stay tight, will loosen to the point it slides on the PS pump pulley. With the engine off belt is very tight. There are no loose bolts.
I am concerned the present bracket has metal fatigue from flexing for at least 6 years that I know of. I will change out the bracket and add the brace that runs to the mount bolt. Best look at the belt too, may be burned from slipping so much.
Safety Car
Joined: Jun 2004
Posts: 4,372
Likes: 223
From: Beecher Illinois
Here's a pic I had, maybe it'll help.
Picture was taken from below.
Behind the 2 hoses you can see the support with the one end bolted on using the motor mount bolt. The other side of the bracket is sandwitched between the cradle bracket under the pump and the block.
Without this support bracket, you'd also have NO place for the adjusting bolt as the curved slot in the support is for the adjustment.
Is it possible the pump simply isn't tight because of a lack of an adjustment bolt?
Picture was taken from below.
Behind the 2 hoses you can see the support with the one end bolted on using the motor mount bolt. The other side of the bracket is sandwitched between the cradle bracket under the pump and the block.
Without this support bracket, you'd also have NO place for the adjusting bolt as the curved slot in the support is for the adjustment.
Is it possible the pump simply isn't tight because of a lack of an adjustment bolt?
Last edited by KapsSA; Feb 2, 2011 at 05:54 PM.
Thread Starter
Race Director
Joined: Jun 1999
Posts: 14,924
Likes: 9
From: Merritt Ils Fl
Thanks for the picture. The belt is tight with the engine off. With the engine running when the steering wheel is turned loading the pump the pump bracket actually bends. Bends enough so it can be seen. The brace that runs to the motor mount is not there. I am wondering just what kind of mount is there. May not be OEM to the Corvette at all. I'll install the correct one which should fix the problem.
Drifting
Joined: Jun 2008
Posts: 1,495
Likes: 134
From: Blanco County, TX
My after market backet does not have a brace to the motor mount. There are (on my 68) two 3.5" bolts that go through the bracket and directly into the block (the lower one is inside the sleeve on the picture above between the balancer and the block). There are two pivot bolts directly opposite each other on the lower front and rear of the pump that attach the pump to the bracket (sliver bolts in the picture above), and one bolt on top of the pump that has a long opening that allows you to tighten the belt.
Be careful ordering replacement brackets, because the wrong bracket will result in some frustrating alignment issues.
I'd also note that in the picture above the PS belt looks like it is in the third balancer groove, where I think in the standard set up it's in the second groove. You should check with your AIM for the belt routing. Is your motor original?
Be careful ordering replacement brackets, because the wrong bracket will result in some frustrating alignment issues.
I'd also note that in the picture above the PS belt looks like it is in the third balancer groove, where I think in the standard set up it's in the second groove. You should check with your AIM for the belt routing. Is your motor original?
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Safety Car
Joined: Jun 2004
Posts: 4,372
Likes: 223
From: Beecher Illinois
If you look at this link for OEM style small block brackets, used from 63-82, you'll notice there are no provisions in the lower cradle bracket for any type of adjustment. In the support bracket you can see the curved slot.
I guess one could try tightening the 2 pivot bolts in the cradle bracket but I wouldn't count on it staying adjusted.
http://www.zip-corvette.com/ProductD...GR-SR&CTitle=&
And in my pic above, you'll notice 3 belts in the crank pulley, AC,alt, and PS. Every small block application I've ever seen has the ps belt in the forward most pulley groove.
I guess one could try tightening the 2 pivot bolts in the cradle bracket but I wouldn't count on it staying adjusted.
http://www.zip-corvette.com/ProductD...GR-SR&CTitle=&
And in my pic above, you'll notice 3 belts in the crank pulley, AC,alt, and PS. Every small block application I've ever seen has the ps belt in the forward most pulley groove.
Last edited by KapsSA; Feb 3, 2011 at 01:05 PM.
