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HELP!!!!!!!!

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Itali83, Nov 20, 2001.

  1. Itali83

    Itali83 1/2 ton status

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    I would like to some time probally at the next oil change put a high volume oil pump in my truck. Is this as simple as unbolting the 2 or 3 bolts that hold the old one on, and bolt the new one on? or is there more to it? What about the shaft that drives the pump? Can I use the old one? I would like to have more oil pressure than I've got now. Right now I run 35-40 psi hot running, and 15-20 hot idle. I'd like to not loose so much at idle and I'm going to be going to nashville tennesee next year for school so I'd like to have more than 35psi for 1500+ miles thats the main thing I want it for. SO thats #1.

    #2, Can or has anyone converted their A/C condencer to be a big ass engine oil cooler? My a/c dosen't work anyways so I don't care about not having it, and instead of stacking one more cooler infront of the radiator now, I would think that would be cool to use the condencer for it. So is that feasable? How would I clean it out. The system currently has no pressure in it due to a leak. Anything else I should know about either topic thanks in advance.
    Ben 87Jimmy
    <font color=blue>Rust=Bad</font color=blue>
    &lt;a target="_blank" href=http://www.bens87toy.alloffroad.com&gt;www.bens87toy.alloffroad.com&lt;/a&gt;
    p.s. sorry for the title but no one was looking at my post with the other one and I'd like more help.

    <P ID="edit"><FONT class="small">Edited by Itali83 on 11/21/01 01:42 PM.</FONT></P>
     
  2. Itali83

    Itali83 1/2 ton status

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    Re: Oil pumps

    Anyone??? Please?
    Ben 87 Jimmy
     
  3. Triaged

    Triaged 1/2 ton status

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    Re: Oil pumps

    Changing a oil pump (on your truck) is not that hard...
    However I would not recomend a high volume pump. They waste HP and cause the oil to run hotter. All you need to do is to use a white press. reg. spring from a old z-28. They sell them in PAW and maybe summit. Or you could just buy a new hi press pump. The stock pump already pumps more oil than your engine needs so you don't need more volume just press.

    '71 Blazer CST w/ a 400sbc, 4" lift, 36" Supper Swampers, and alot of rust
    <a target="_blank" href=http://community.webshots.com/user/triaged>See it Here </a>
     
  4. Triaged

    Triaged 1/2 ton status

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    Re: Oil pumps

    And for the second question...
    No you should not use the AC condenser for a oil cooler. It will cool the oil too much and because of the size of it it will drop the oil press that the motor sees.

    '71 Blazer CST w/ a 400sbc, 4" lift, 36" Supper Swampers, and alot of rust
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  5. Thunder

    Thunder 3/4 ton status

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    Re: Oil pumps

    This is right out of the GM manual:
    oil pressure - 16 psi at 700 RPM 30 to 45 psi @ 1500 rpm.
    Looks like your truck is right in the factory specs. No need to fix something that aint broke.
    Also if your using the stock oil guage They are notoriously inacurate. It would be better to ckeck the pressure with a mechanical guage.
    You should not need a high volume oil pump on a stock engine that is in good contdition. Nor do you really need an oil cooler unless you do a lot of towing.
    I have heard of people using the AC coil for a trans oil cooler for thair 700r4s with good sucess

    <a target="_blank" href=http://coloradok5.com/gallery/Thunders-Blaze>http://coloradok5.com/gallery/Thunders-Blaze</a>
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  6. chevyracing

    chevyracing 1/2 ton status

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    Re: Oil pumps

    Nothing else to add here, that was good advice above.

    Like to go sloppin' 'round in da mud in a rapid fashion....=)

    <a target="_blank" href=http://coloradok5.com/gallery/albun31?&page=1>See my pics here</a>
     
  7. CaptCrunch

    CaptCrunch 1/2 ton status

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    Re: Oil pumps

    I agree here also.... more likely any oil pressure problems would be in bearing clearences and such and not a pump problem. Also high volume pumps are WAY overrated. I also would hate to see it in a higher milage motor... talk about "Wholley Batleaks Batman!". If you really have the urge or whatever just get a good stock replecemnt Melling pump. Your local NAPA should have them in stock

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
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  8. DMK

    DMK 1/2 ton status

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    Re: Oil pumps

    A high volume pump won't increase pressure just the amount of oil throuhg motor. And as pointed out use more hp. A high pressure pump would increase pressure.
     
  9. Itali83

    Itali83 1/2 ton status

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    Re: Oil pumps

    Ok yea I was wrong, I just want more pressure, so a high pressure pump would be to my liking. I already have all autometer mechanical guages in my truck so I got an accurate reading. The other thing is that I'd like to see my truck running 45-50 on the highway instead of the 32 that I hae on the highway. Since I'm going to be going to Nashville next summer(1500+miles away) I'd like to keep my motor nice and happy with more oil and cool oil at that. Will I do any internal damage with the upped oil pressure?? how much does a high pressure pump run anyways??
    The reason I want to do this is because I know that the oil and water are the blood of an engine, my truck has a good and new cooling system so thats no prob. But I'd like to keep it happy with more oil and cool oil at that.
    If I do this, will I be causing myself more headaches, as in internal probs, I expect some leaks and those can be fixed cheaply. Thanks guys for your help!!!!!!!!!!!
    Ben 87 JImmy
     

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