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11-21-2019, 02:03 AM | #1 |
Roto Reuter thats the name...
Join Date: Feb 2010
Location: Darien, NY
Posts: 1,853
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Power Steering Pump fitment probs on LM7 5.3 K10 swap
I'm in the process of swapping a 5.3L LM7 into my 1970 K10. I was planning to use the stock 5.3 PS pump and stock PS/Alt accessory bracket. I'm having a problem with fitment of the PS pump. The low pressure line hits on the frame. Anyone else have interference problems with the PS pump? I don't really want to try to bend that line in fear of damage. I'm wondering if there is a different style pump that would work with the stock accessory bracket. Any help would be appreciated.
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~ Dan My 70 K10 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=782232 My 71 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=651394 1970 SWB Fleet K10 4X4, 5.3L LM7, 4L60E, Dakota Digital RTX, Vintage Air, Ididit tilt 1971 SWB Fleet C10 - Original SWB Arizona truck, new custom restoration project "Kick out your motor and drive while you're still alive - kick it out!" - Heart 1977 |
11-21-2019, 04:10 AM | #2 |
Post Whore
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Re: Power Steering Pump fitment probs on LM7 5.3 K10 swap
are you referring to the return line?..got a pic?..trying to picture in my mind where its hitting
what engine mounts are you using? maybe you could raise the engine up some...
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Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver |
11-21-2019, 10:00 AM | #3 |
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Location: Independence Mo
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Re: Power Steering Pump fitment probs on LM7 5.3 K10 swap
I just carefully bent mine, but my engine may be in a different position than yours, so it may not have been as close.
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My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html |
11-21-2019, 05:00 PM | #4 |
Roto Reuter thats the name...
Join Date: Feb 2010
Location: Darien, NY
Posts: 1,853
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Re: Power Steering Pump fitment probs on LM7 5.3 K10 swap
So I tried to bend it a bit. I can't really go any more. As it is my line will be coming out right behind the PS pulley.
I bent this line and only have about 1/8" clearance from frame. When engine is running it will probably still hit. The line is now directly behind where pulley will go.
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~ Dan My 70 K10 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=782232 My 71 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=651394 1970 SWB Fleet K10 4X4, 5.3L LM7, 4L60E, Dakota Digital RTX, Vintage Air, Ididit tilt 1971 SWB Fleet C10 - Original SWB Arizona truck, new custom restoration project "Kick out your motor and drive while you're still alive - kick it out!" - Heart 1977 |
11-21-2019, 05:16 PM | #5 |
Post Whore
Join Date: May 2015
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Re: Power Steering Pump fitment probs on LM7 5.3 K10 swap
I bent mine to point out a little...but mine is about 2in above the frame rail
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Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver |
11-21-2019, 07:07 PM | #6 |
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Location: Los Banos CA
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Re: Power Steering Pump fitment probs on LM7 5.3 K10 swap
Hey Dan, I messaged mine to make a tighter curve off the pump. I have about a good inch clearance from the frame. My motor is pretty solid and I don't think it will ever move enough to hit. I also rotated the curve to point more to the fender to avoid the pully. I will try and get a picture but may be this weekend before I get it.
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1956 Chevy Bel Air 2 door 1956 Chevy 210 4 Door 1970 K20 LWB project the Hulk build w/Supercharged 4.8L-ly2/4L60E HULK BUILD 1970 C10 Yellow/White Deluxe LWB w/ 5.3L-LC9/6L80E 1968 K10 LWB Dark green my son calls it "THE HULK Jr"HULK JR *SOLD* GO GO!!! |
11-21-2019, 07:59 PM | #7 | |
Roto Reuter thats the name...
Join Date: Feb 2010
Location: Darien, NY
Posts: 1,853
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Re: Power Steering Pump fitment probs on LM7 5.3 K10 swap
Quote:
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~ Dan My 70 K10 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=782232 My 71 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=651394 1970 SWB Fleet K10 4X4, 5.3L LM7, 4L60E, Dakota Digital RTX, Vintage Air, Ididit tilt 1971 SWB Fleet C10 - Original SWB Arizona truck, new custom restoration project "Kick out your motor and drive while you're still alive - kick it out!" - Heart 1977 |
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11-21-2019, 09:09 PM | #8 |
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Re: Power Steering Pump fitment probs on LM7 5.3 K10 swap
can you not bend it down so its down between the frame its just rubber return hose
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David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
11-21-2019, 10:03 PM | #9 |
Roto Reuter thats the name...
Join Date: Feb 2010
Location: Darien, NY
Posts: 1,853
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Re: Power Steering Pump fitment probs on LM7 5.3 K10 swap
Dave, I thought about doing this. I may still try. I really like the idea of having the line between the frame anyway. I'll let you know if I try it.
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~ Dan My 70 K10 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=782232 My 71 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=651394 1970 SWB Fleet K10 4X4, 5.3L LM7, 4L60E, Dakota Digital RTX, Vintage Air, Ididit tilt 1971 SWB Fleet C10 - Original SWB Arizona truck, new custom restoration project "Kick out your motor and drive while you're still alive - kick it out!" - Heart 1977 |
11-23-2019, 09:28 PM | #10 |
Roto Reuter thats the name...
Join Date: Feb 2010
Location: Darien, NY
Posts: 1,853
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Re: Power Steering Pump fitment probs on LM7 5.3 K10 swap
I decided to bend the PS pump line down so it would fit between the frame rails. Should be good now.
__________________
~ Dan My 70 K10 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=782232 My 71 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=651394 1970 SWB Fleet K10 4X4, 5.3L LM7, 4L60E, Dakota Digital RTX, Vintage Air, Ididit tilt 1971 SWB Fleet C10 - Original SWB Arizona truck, new custom restoration project "Kick out your motor and drive while you're still alive - kick it out!" - Heart 1977 |
11-23-2019, 10:12 PM | #11 |
Post Whore
Join Date: May 2015
Location: Alabama
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Re: Power Steering Pump fitment probs on LM7 5.3 K10 swap
That should work..!
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Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver |
11-24-2019, 11:28 AM | #12 |
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Join Date: Dec 2012
Location: Los Banos CA
Posts: 2,705
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Re: Power Steering Pump fitment probs on LM7 5.3 K10 swap
Sorry dan I have been working and haven’t got a chance to get to my shop for a pitcture.
Looks that in the rail looks fine. My motor might sit higher then yours since my line is above the rail.
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1956 Chevy Bel Air 2 door 1956 Chevy 210 4 Door 1970 K20 LWB project the Hulk build w/Supercharged 4.8L-ly2/4L60E HULK BUILD 1970 C10 Yellow/White Deluxe LWB w/ 5.3L-LC9/6L80E 1968 K10 LWB Dark green my son calls it "THE HULK Jr"HULK JR *SOLD* GO GO!!! |
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