mat in tn Posted July 2 Share Posted July 2 I bought the Cardone 20-6240 which shows up as THE PUMP whether it is a 1978 Bronco with a 400 (Actual vehicle) or a 1986 F250 with a 460 (engine source). O'Reilly has the same pump as well for both options (711-2115). Autozone has a TruGrade/Endurance Power Steering Pump 7050 for a 1986 F250 but a different 7056 one for a 1978 Bronco 400.... wonder what is different between the 2 pumps.. they look identical. I'll go to Autozone later today with the pulley! Hoping to sort this one. Perils of OEM discontinuation. I don't know how restoration shops do this ALL the time!! 25% grunt work, 42% mechanic work, 38 % parts searching and 7% general math. Link to comment Share on other sites More sharing options...
viven44 Posted July 3 Share Posted July 3 25% grunt work, 42% mechanic work, 38 % parts searching and 7% general math. Sounds about right! I have visited Autozone, OReilly today and also picked up a micrometer set from HF. The O'Reilly pump is comparable to the Cardone one. Those have 0.001" smaller shaft diameter and just that much makes a huge difference in the interference fit. The Autozone one has ~0.0005 smaller but fits nearly as good as the original The original still fits well so I know the pulley hasn't been jacked up when I tried to remove it I'm guessing the reman process machining is responsible for the smaller diameter but it is causing the pulley to sit ~1/16" deeper. Hoping it doesn't cause Belt misalignment.... assuming a V-belt can deal with some of that... I know a serpentine belt is more finicky. I wish I can sometimes ignore small things and "send it". I've heard some of the hipsters say "just send it" on Facebook... I haven't gravitated to that paradigm yet. Link to comment Share on other sites More sharing options...
Danny G Posted July 3 Share Posted July 3 Sounds about right! I have visited Autozone, OReilly today and also picked up a micrometer set from HF. The O'Reilly pump is comparable to the Cardone one. Those have 0.001" smaller shaft diameter and just that much makes a huge difference in the interference fit. The Autozone one has ~0.0005 smaller but fits nearly as good as the original The original still fits well so I know the pulley hasn't been jacked up when I tried to remove it I'm guessing the reman process machining is responsible for the smaller diameter but it is causing the pulley to sit ~1/16" deeper. Hoping it doesn't cause Belt misalignment.... assuming a V-belt can deal with some of that... I know a serpentine belt is more finicky. I wish I can sometimes ignore small things and "send it". I've heard some of the hipsters say "just send it" on Facebook... I haven't gravitated to that paradigm yet. Took the 350 on a 40 mile round trip to work. Most of it 60-65mph down I26. Two bit things I noticed on the way home. 1) there is a hold in the firewall right behind the engine that is wide open... And it's hot. 2) I have a chirp coming from the passenger front tire that speeds up and slows down with my speed. 3) Definitely need to get that steering tightened up a bit. Link to comment Share on other sites More sharing options...
BigBrother-84 Posted July 3 Share Posted July 3 Took the 350 on a 40 mile round trip to work. Most of it 60-65mph down I26. Two bit things I noticed on the way home. 1) there is a hold in the firewall right behind the engine that is wide open... And it's hot. 2) I have a chirp coming from the passenger front tire that speeds up and slows down with my speed. 3) Definitely need to get that steering tightened up a bit. A special situation forced Big Bro to hit the road as a daily drive vehicle for the week. My Chevy Volt is at the paint shop (needed some refresh, after 6 years on the Salt Kingdom roads). Big Bro is happy to go to office. Link to comment Share on other sites More sharing options...
scbill Posted July 3 Share Posted July 3 Sounds about right! I have visited Autozone, OReilly today and also picked up a micrometer set from HF. The O'Reilly pump is comparable to the Cardone one. Those have 0.001" smaller shaft diameter and just that much makes a huge difference in the interference fit. The Autozone one has ~0.0005 smaller but fits nearly as good as the original The original still fits well so I know the pulley hasn't been jacked up when I tried to remove it I'm guessing the reman process machining is responsible for the smaller diameter but it is causing the pulley to sit ~1/16" deeper. Hoping it doesn't cause Belt misalignment.... assuming a V-belt can deal with some of that... I know a serpentine belt is more finicky. I wish I can sometimes ignore small things and "send it". I've heard some of the hipsters say "just send it" on Facebook... I haven't gravitated to that paradigm yet. viven44, I have a small toaster oven that was no longer suitable for home use that I have used to heat parts so they are easier to install on a shaft such as what you're working on. It's a heat the pulley, cool the shaft thing, a torch will work on the pulley, if you don't overdo it. Bill Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted July 3 Share Posted July 3 Sounds about right! I have visited Autozone, OReilly today and also picked up a micrometer set from HF. The O'Reilly pump is comparable to the Cardone one. Those have 0.001" smaller shaft diameter and just that much makes a huge difference in the interference fit. The Autozone one has ~0.0005 smaller but fits nearly as good as the original The original still fits well so I know the pulley hasn't been jacked up when I tried to remove it I'm guessing the reman process machining is responsible for the smaller diameter but it is causing the pulley to sit ~1/16" deeper. Hoping it doesn't cause Belt misalignment.... assuming a V-belt can deal with some of that... I know a serpentine belt is more finicky. I wish I can sometimes ignore small things and "send it". I've heard some of the hipsters say "just send it" on Facebook... I haven't gravitated to that paradigm yet. If a half thou makes you nervous just use a drop of green stud & bearing mount on the shaft. You may need to take a torch to the pulley in order to get it off, but if the pump is shot and going back as a core you don't care about the seal anyhow. 🤷♂️ Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted July 3 Share Posted July 3 A special situation forced Big Bro to hit the road as a daily drive vehicle for the week. My Chevy Volt is at the paint shop (needed some refresh, after 6 years on the Salt Kingdom roads). Big Bro is happy to go to office. I bet he starts right up when he's used twice a day! Link to comment Share on other sites More sharing options...
viven44 Posted July 3 Share Posted July 3 viven44, I have a small toaster oven that was no longer suitable for home use that I have used to heat parts so they are easier to install on a shaft such as what you're working on. It's a heat the pulley, cool the shaft thing, a torch will work on the pulley, if you don't overdo it. Bill Thanks! My issue is that the pulley slides on too easy. Only pressed in the last 1/16th. Link to comment Share on other sites More sharing options...
BigBrother-84 Posted July 3 Share Posted July 3 I bet he starts right up when he's used twice a day! Yessir! No «dry-carb-bowl-syndrome» these days, starts like a young sport car. Link to comment Share on other sites More sharing options...
scbill Posted July 3 Share Posted July 3 Thanks! My issue is that the pulley slides on too easy. Only pressed in the last 1/16th. If you have a way to measure the shaft, take it back and get another one. If it's v-belt, the belt will hold it in place for a while but will probably start slipping after a while, don't chance that. Bill Link to comment Share on other sites More sharing options...
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