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  #1  
Old 08-08-2020, 07:56 PM
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posulli88 posulli88 is offline
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Power Steering Pulley / Smog Bracket Interference?

Well I am installing a PSC power steering pump and smog pump bracket at the same time. I have to install the smog pump bracket (which was not previously on my J10) for Colorado emissions. I installed the power steering pulley on the new PSC pump and there is interference with the smog pump bracket and the pulley (see photos below).

I had to remove the PSC back studs and replace them with the studs that were on the original pump because the PSC studs were too short to get a nut on them on the bracket. Ive pulled the pulley back off the pump a little so it gets closer to not hitting the bracket, but I don't want to go too much more for fear of it being too weak. I guess I could add spacers to the back side of PSC unit to space it further out. Am I doing something wrong? Sorry for the crappy photos, it was super sunny out which effected exposure. I can take better ones tomorrow if need be.


bottom of pulley hitting jut out of smog bracket


back side of pump


how far the pulley is on the shaft currently


where the interference is..
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  #2  
Old 08-09-2020, 07:25 AM
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Full Size Jeeper Full Size Jeeper is offline
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The pics are hard for me to decipher, but that's okay. You may have already started to do this, but what I would do is get the power steering pump aligned with the appropriate pulleys. You may have to add or subtract shims to get it lined up. Then get the air pump to align with whatever pulleys it's going to run on. Shim it accordingly.
The only other thing, Make sure you have the correct air pump and the P/S pump is dimensional the same as the original one.
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1978 Wagoneer

401/turbo 400 trans. Quadra-Trac BW1339 (with Low) 4" Rusty's lift with 31" Summit Mud Dawgs

Mods:
Fuel Tank, Red Holley Fuel Pump, Razor Grill (profile pic out dated), Rebuilt steering box
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Old 08-09-2020, 07:33 AM
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Full Size Jeeper Full Size Jeeper is offline
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I don't have an air pump, but my P/S pump pulley is 1 1/2 inches away from the housing.
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1978 Wagoneer

401/turbo 400 trans. Quadra-Trac BW1339 (with Low) 4" Rusty's lift with 31" Summit Mud Dawgs

Mods:
Fuel Tank, Red Holley Fuel Pump, Razor Grill (profile pic out dated), Rebuilt steering box
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  #4  
Old 08-09-2020, 07:38 AM
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Full Size Jeeper Full Size Jeeper is offline
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Also here is a few pics right out of the 78 TSM. The air pump looks far enough away from the p/s pump that they should not touch. Maybe the wrong size pulley on the air pump or you are trying to bolt the air pump to close to the power steering pump. I'am just throwing stuff at the wall hoping something sticks. Good luck.
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1978 Wagoneer

401/turbo 400 trans. Quadra-Trac BW1339 (with Low) 4" Rusty's lift with 31" Summit Mud Dawgs

Mods:
Fuel Tank, Red Holley Fuel Pump, Razor Grill (profile pic out dated), Rebuilt steering box
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  #5  
Old 08-09-2020, 07:39 AM
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Location: Mandeville Louisiana
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1978 Wagoneer

401/turbo 400 trans. Quadra-Trac BW1339 (with Low) 4" Rusty's lift with 31" Summit Mud Dawgs

Mods:
Fuel Tank, Red Holley Fuel Pump, Razor Grill (profile pic out dated), Rebuilt steering box
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  #6  
Old 08-09-2020, 07:41 AM
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Full Size Jeeper Full Size Jeeper is offline
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Location: Mandeville Louisiana
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1978 Wagoneer

401/turbo 400 trans. Quadra-Trac BW1339 (with Low) 4" Rusty's lift with 31" Summit Mud Dawgs

Mods:
Fuel Tank, Red Holley Fuel Pump, Razor Grill (profile pic out dated), Rebuilt steering box
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  #7  
Old 08-09-2020, 09:09 AM
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posulli88 posulli88 is offline
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Thanks for the help full size jeeper. My problem is not the two pulleys touching its the smog pump bracket touching the PS pulley. I just took better photos here:



Side view you can see the overlap at the bottom of the pulley.



bottom of pulley hitting smog pump bracket but bracket not in place yet.



Top view of alignment. I think I will shim the PS pump a little further out and pull the pulley off the shaft a little more to get the alignment needed. Thanks for the help!
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  #8  
Old 08-09-2020, 11:23 AM
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gotta be wrong pump with that overlap.
or incorrect shaft installed when reman'd
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Old 08-09-2020, 12:25 PM
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Hey Babwag,

Its a brand new PSC pump so its not a reman. Got it through BJ's so I will reach out to them.
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Old 08-09-2020, 01:39 PM
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Well new or not something is not right.
With the pulley flush there should be gap between pulley & lower bracket.
Should NOT have to shim it or need to have the pulley not seated for a flippin new part.
Ridiculous imho, you spent a premium price for a direct bolt in part.
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Old 08-09-2020, 02:00 PM
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Agreed! I wonder if its the pulley. Does anyone have a photo of the stock pulley and its offset? Im just remembered I bought this pulley years ago because my original one was cracked. This was suggested as a replacement to me on this board from some GMC Truck because they don't make our jeep model anymore. If the pulley offset is wrong obviously it wouldn't work now with the smog bracket
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  #12  
Old 08-09-2020, 03:16 PM
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I can try and get pic or two?
Possibly pulley issue but you should have had the same issue before replacement, if it was a pulley problem???
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Last edited by babywag : 08-09-2020 at 03:37 PM.
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  #13  
Old 08-09-2020, 03:44 PM
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This info is off of summits site for the pulley you have.
Brandorman
Manufacturer's Part Number:300-121
Part Type:Power Steering Pulleys
Product Lineorman Power Steering Pulleys
Summit Racing Part Number:RNB-300-121

UPC:019495060123
Pulley Style:V-belt
Power Steering Pulley Grooves:2-groove, V-belt
Underdrive:No
Overdrive:No
Power Steering Pulley Attachment:Press fit
Power Steering Pulley Bore Diameter (in):0.750 in.
Hardware Included:No
Outside Diameter (in):5.800 in.
Pulley Finish:Black
Pulley Material:Steel
Power Steering Brackets Included:No
Quantity:Sold individually.
Notes:Pulley width 2.257 in.
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1978 Wagoneer

401/turbo 400 trans. Quadra-Trac BW1339 (with Low) 4" Rusty's lift with 31" Summit Mud Dawgs

Mods:
Fuel Tank, Red Holley Fuel Pump, Razor Grill (profile pic out dated), Rebuilt steering box
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  #14  
Old 08-09-2020, 03:48 PM
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Full Size Jeeper Full Size Jeeper is offline
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I measured two pulleys I have at the house, one is on my jeep. Both are 5 1/2 inches in diameter I think the one you have is a little big. I would put a tape measure on the one you have just to be sure.
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1978 Wagoneer

401/turbo 400 trans. Quadra-Trac BW1339 (with Low) 4" Rusty's lift with 31" Summit Mud Dawgs

Mods:
Fuel Tank, Red Holley Fuel Pump, Razor Grill (profile pic out dated), Rebuilt steering box
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  #15  
Old 08-09-2020, 04:03 PM
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posulli88 posulli88 is offline
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Babywag: I didn't have the smog bracket until yesterday. I am adding it on because I just moved to Colorado and have to pass smog. So it worked before because there as no bracket for interference. Now that Ive added the bracket I have the issue.

Full size jeeper: Thanks for looking that info up. Didn't realize it was bigger then stock. So definitely the wrong pulley.

Ive just ordered a pulley from TGW. We will see if it works better. I will let you know. Thank you everyone for the help!!
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  #16  
Old 08-14-2020, 04:46 PM
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Well turns out if you use the right pulley everything goes together correctly. Ordered the right pulley for TGW. Everything is back together and my PS whine is gone. Have not done a big road test yet but I can tell the PSC pump is a huge upgrade. I flushed the system with the PSC flushing fluid and it was all pretty dirty. This feels good haha.
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