| Power Steering Pump Part Number [message #204017] |
Mon, 08 April 2013 08:47  |
gbarrow2
Messages: 765
Registered: February 2004
Location: Lake Almanor, Ca./ Red Bl...
Karma: 3
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The steering on my 1976 Palm Beach is "stiffer" than on other coaches that I have driven. Over time ALL steering and suspension parts except the power steering pump have been replaced. Coach handles great- just takes more effort to turn the wheel than a Cadillac.
GMCI Parts interchange lists #7813474 for 1973 and #7818023 for 74-77 and #7827380 for 1978.
O'Rielly also lists different numbers for different years of Toronados.
I'm going to change the pump- hoping for easier steering.
Anyone know what the differences are in the pumps? Why did such a basic part change from year to year?
What's the likely hood of easier steering with a different pump?
Gene Barrow
Lake Almanor, Ca.
1976 Palm Beach
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| Re: Power Steering Pump Part Number [message #204024 is a reply to message #204017] |
Mon, 08 April 2013 09:09  |
C Boyd
Messages: 2629
Registered: April 2006
Karma: 18
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Hi Gene: If you remove the hi pressure line then remove the line adapter you will find some spacer washers. Removing the washes will increase pressure. One difference is with or without reservoir.
| gbarrow wrote on Mon, 08 April 2013 09:47 |
The steering on my 1976 Palm Beach is "stiffer" than on other coaches that I have driven. Over time ALL steering and suspension parts except the power steering pump have been replaced. Coach handles great- just takes more effort to turn the wheel than a Cadillac.
GMCI Parts interchange lists #7813474 for 1973 and #7818023 for 74-77 and #7827380 for 1978.
O'Rielly also lists different numbers for different years of Toronados.
I'm going to change the pump- hoping for easier steering.
Anyone know what the differences are in the pumps? Why did such a basic part change from year to year?
What's the likely hood of easier steering with a different pump?
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C. Boyd
76 Crestmont
East Tennessee
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| Re: Power Steering Pump Part Number [message #204030 is a reply to message #204024] |
Mon, 08 April 2013 09:51 |
gbarrow2
Messages: 765
Registered: February 2004
Location: Lake Almanor, Ca./ Red Bl...
Karma: 3
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Jp and Chuck,
Thanks for the tips.
I've asked this question in the past. You're the first to tell me that the pump pressure is adjustable.
Any suggestion as to how many washers to remove?
Didn't recognize you with the beard. Looked good though.
Gene Barrow
Lake Almanor, Ca.
1976 Palm Beach
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| Re: Power Steering Pump Part Number [message #204035 is a reply to message #204030] |
Mon, 08 April 2013 10:46 |
C Boyd
Messages: 2629
Registered: April 2006
Karma: 18
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Senior Member |
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There only 1 or 2 in there, I took all mine out and it didn`t help much. I was advised to replace the valve if I wanted it easier. Kerry is wanting harder so maybe ya`ll could swap valves?
| gbarrow wrote on Mon, 08 April 2013 10:51 |
Jp and Chuck,
Thanks for the tips.
I've asked this question in the past. You're the first to tell me that the pump pressure is adjustable.
Any suggestion as to how many washers to remove?
Didn't recognize you with the beard. Looked good though.
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C. Boyd
76 Crestmont
East Tennessee
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| Re: Power Steering Pump Part Number [message #204036 is a reply to message #204033] |
Mon, 08 April 2013 10:49 |
C Boyd
Messages: 2629
Registered: April 2006
Karma: 18
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Dan: you have to use a back up wrench on the fitting. Loosen it first then tighten the valve/adapter then hold it whle you tighten the line real tight. Kinda like the fuel inlet in a Q-jet.
| WD0AFQ wrote on Mon, 08 April 2013 11:33 |
Gene, do you have a pulley puller? I have a pump that has leaked a little for years. Cleaned it up yesterday. Thinking about swapping it out, 1974 GMC. Been told it takes a special puller to get that pulley off. Mine just seems to drip a "dab" back at the high pressure connector. Rarely add fluid but I just hate drips so I have to keep it clean so my driveway stays "spot" free.
Maybe you can try adjusting your pressure as Chuck says and save the headache of swapping it out and trying to get that pulley off.
Let me know what you do. Pictures will be good. I can not see back there very well to tell just what is going on for sure.
Dan
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C. Boyd
76 Crestmont
East Tennessee
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| Re: Power Steering Pump Part Number [message #204044 is a reply to message #204034] |
Mon, 08 April 2013 11:59 |
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WD0AFQ
Messages: 7111
Registered: November 2004
Location: Dexter, Mo.
Karma: 207
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| Craig Lechowicz wrote on Mon, 08 April 2013 10:42 |
Dan,
I have a pulley puller that should work. I'm pretty sure I'm going to the Miller work rally, and could bring it there if you are going.
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Thanks Craig and Chuck. I can not even see the dang fitting on mine. I think the pump will have to come off to do anything, even check it as to where the leak is. When that happens, I want a replacement in hand in case something goes wrong, and a puller for the pump pulley. I doubt I can get the GMC to Miller's. Gas is too dang expensive. 500 miles, or close to it. Would be a that would be a 500.00 round trip for gasoline. But, I thank you Craig.
Not trying to get Gene's thread off topic. He needs information about the pump numbers. I would like to see his pictures when he does the swap.
Dan
3 In Stainless Exhaust Headers
One Ton All Discs/Reaction Arm
355 FD/Quad Bag/Alum Radiator Manny Tran/New eng.
Holley EFI/10 Tire Air Monitoring System
Solarized Coach/Upgraded Windows
Satelite TV/On Demand Hot Water/3Way Refer
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| Re: Power Steering Pump Part Number [message #204083 is a reply to message #204033] |
Mon, 08 April 2013 17:40 |
gbarrow2
Messages: 765
Registered: February 2004
Location: Lake Almanor, Ca./ Red Bl...
Karma: 3
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Senior Member |
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Dan, Good input.
I don't have a puller, but the last time I changed a ps pump (on my 1989 chevy Suburban) the pump came with a simple puller- just a long bolt, big washer and a bracket. I don't remember exactly but it was simple and worked easily. That was a few years and miles from here so I don't have the puller any more.
Hopefully the pump still comes with the puller. or I can figure out how to make one.
Gene Barrow
Lake Almanor, Ca.
1976 Palm Beach
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| Re: Power Steering Pump Part Number [message #204096 is a reply to message #204044] |
Mon, 08 April 2013 18:37 |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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| WD0AFQ wrote on Mon, 08 April 2013 12:59 |
Thanks Craig and Chuck. I can not even see the dang fitting on mine. I think the pump will have to come off to do anything, even check it as to where the leak is. When that happens, I want a replacement in hand in case something goes wrong, and a puller for the pump pulley. I doubt I can get the GMC to Miller's. Gas is too dang expensive. 500 miles, or close to it. Would be a that would be a 500.00 round trip for gasoline. But, I thank you Craig.
Not trying to get Gene's thread off topic. He needs information about the pump numbers. I would like to see his pictures when he does the swap.
Dan
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Dang Dan,
You are about as far from Hamilton as you are from Bean Station. If you can't get a puller on a local loan program, mine could be express mailed for not a lot of money. 2# 9x6x2.5
Let me know.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: Power Steering Pump Part Number [message #204098 is a reply to message #204096] |
Mon, 08 April 2013 18:40 |
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WD0AFQ
Messages: 7111
Registered: November 2004
Location: Dexter, Mo.
Karma: 207
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| Matt Colie wrote on Mon, 08 April 2013 18:37 |
| WD0AFQ wrote on Mon, 08 April 2013 12:59 |
Thanks Craig and Chuck. I can not even see the dang fitting on mine. I think the pump will have to come off to do anything, even check it as to where the leak is. When that happens, I want a replacement in hand in case something goes wrong, and a puller for the pump pulley. I doubt I can get the GMC to Miller's. Gas is too dang expensive. 500 miles, or close to it. Would be a that would be a 500.00 round trip for gasoline. But, I thank you Craig.
Not trying to get Gene's thread off topic. He needs information about the pump numbers. I would like to see his pictures when he does the swap.
Dan
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Dang Dan,
You are about as far from Hamilton as you are from Bean Station. If you can't get a puller on a local loan program, mine could be express mailed for not a lot of money. 2# 9x6x2.5
Let me know.
Matt
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Thanks Matt. 450 to Bean Station. We also have a very big vdub gathering in Effingham every first weekend in June. It is a grandkid time with me. I hate to miss that. Basically a free weekend in the GMC.
Dan
3 In Stainless Exhaust Headers
One Ton All Discs/Reaction Arm
355 FD/Quad Bag/Alum Radiator Manny Tran/New eng.
Holley EFI/10 Tire Air Monitoring System
Solarized Coach/Upgraded Windows
Satelite TV/On Demand Hot Water/3Way Refer
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| Re: Power Steering Pump Part Number [message #204104 is a reply to message #204017] |
Mon, 08 April 2013 19:08 |
Jim Wagner
Messages: 339
Registered: February 2004
Location: Brook Park, Oh
Karma: 0
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Senior Member |
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Dan, I just removed the pulley on Sandy's Vette (The Toad)P/S pump and it came off very easy. An old battery cable remover puller would of done it. I installed a hydroboost brake system and added a remote reservoir.
Jim Wagner
Brook Park, oh
Dog gone it. Forgot what we were talking about. I will borrow one locally or buy one from Harbor Freight when I do it. Think it is a "work rally" kind of job. I will need good advice.
Dan
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