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Stesso

Remove Oil Pump and Measure Pickup Tube Clearance

10:08
48:11
78.1K views

At 10:08 in

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What happens here

The next critical step is the removal of the oil pump, which is located at the front of the engine, behind the timing cover. Before removing the oil pump, the front timing cover is detached. The oil pump is identified as a Melling 10294, a low volume/standard pressure pump. Disassembly of the pump allows for visual inspection of its internal gears and components for wear. Simultaneously, the oil pickup tube's clearance to the pan is measured to ensure it was within the optimal range (typically 1/4 inch, with a maximum of 350-400 thousandths) to avoid oil starvation, which can cause significant pressure drops.

Goal: Inspect the oil pump and verify proper pickup tube clearance to prevent oil starvation.

Tools and materials

  • Feeler Gauges — To measure the clearance between the oil pickup tube and the oil pan
  • Front Timing Cover — To access the oil pump
  • Oil Pump Melling 10294 — The component being removed and inspected
  • Wrench Set — To remove fasteners for the oil pump and timing cover

What they say

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relief which oil pump is this uh it has the number on the back of it oh so we still can't find out yet a cool the suspense builds so before everything comes apart we're going to check uh the pickup tube the pan clearance with the gasket in there just to see if that might have something to do with why the oil pressure was acting the way it was but you're saying if it's too far away it can be a bad thing too right you want it you want it right about a quarter inch away from the bottom of the pan max about 350 thousands you know max max like 400 but getting up to like a half inch of clearance between the bottom of the pan and the bottom pickup tube you're just leaving that much volume of oil that you're not able to reach having it that quarter inches is optimal for allowing enough uh space for the oil to actually get up into the pickup tube without having sacrificing the amount of oil that you can actually reach in the pan the volume of oil makes sense if it's up higher i know you can't get to the bottom but does that also affect the amount of windage that can cause under the pickup like you know as far as like air getting in there and not just oil because you have you have your wind you have your windage tray so i mean it's calmer down there obviously this is all upside down so um you know your pan is is right here let's say but if it's if it's up in here you know let's say you have that much pick up to the pancreas you're leaving that much volume of oil across the entire pan that you're not being able to pull up so you think you might have seven quarts in it but you're only able to reach you know let's say six of them makes sense yeah see yeah then it can only pump six up into the motor and you got one just chilling one just sitting at the bottom of the pan so we'll just do a little quick down and dirty representation of what it is with clay i'm excited to get this figured out because one i'm tired of this thing leaking oil two i'm tired of wondering why the oil pressure isn't doing what it's supposed to do so that'll give me just that much more peace of mind when we go to like really turn this thing up right when you first started was it you doing all this yeah of course uh when when we first started it was myself and my partner pecos we were doing all the tear down machining you know answering the phones

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