LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Removing oil pan

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Old 08-10-2009, 05:12 PM
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ADM
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Question Removing oil pan

I know the engine needs to be jacked up, but where do I jack it up from? I do not have a cherry picker or know anyone who has one. Is there any alternative way?
Old 08-10-2009, 05:19 PM
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Do you have a strut tower brace?
Old 08-10-2009, 05:19 PM
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Block of wood under the harmonic balancer pulley (I'd take the balancer itself off) then you can use a floor jack.
Old 08-10-2009, 05:25 PM
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Originally Posted by Z28Camaro30Ann
Do you have a strut tower brace?
Chain the engine to the STB, drop the k-member...so easy.

Originally Posted by My95Z
Block of wood under the harmonic balancer pulley (I'd take the balancer itself off) then you can use a floor jack.
That's another way, jack under the crank hub.
Old 08-10-2009, 05:32 PM
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Haven't got an STB I'm afraid. I did try the wood under the crank hub trick, it works yes with the right size of wood, but I am just looking for safer alternatives.

I tried it with the balancer on because I have not had time to remove it. I will have a go at it after tomorrow because I am working tomorrow night (earning extra $$ to buy a SS3600 )

I want to remove it just to replace my oil pump and put in a new seal. I am also getting a new sending unit to make sure I am getting a correct reading.
Old 08-10-2009, 05:34 PM
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Originally Posted by ADM
Haven't got an STB I'm afraid. I did try the wood under the crank hub trick, it works yes with the right size of wood, but I am just looking for safer alternatives.

I tried it with the balancer on because I have not had time to remove it. I will have a go at it after tomorrow because I am working tomorrow night (earning extra $$ to buy a SS3600 )

I want to remove it just to replace my oil pump and put in a new seal. I am also getting a new sending unit to make sure I am getting a correct reading.
Why do you need to replace your pump?
Old 08-10-2009, 05:34 PM
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other than those...without a cherry picker your kindof SOL lol
Old 08-10-2009, 05:54 PM
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Originally Posted by ss.slp.ls1
Why do you need to replace your pump?
Well, at idle the gauge was reading 40psi (cold) and when warm, 20psi hot idle. Under driving, it was at 40psi but let go of the throttle and it drops to 20psi but no less.

Now, its either of these 4.

1. The sender was bad.
2. The oil pump might be giving up or the pick up pan is really dirty.
3. The oil the garage put in for me when I gave it in for an oil change when I got the car a month shy of a year ago (I never let anyone work on my car but I could not even spare time for a simple job) so I don't know what oil was poured into my engine.
4 & worst case scenario: some bearings are really wearing out.

So, I thought since I am removing the pan to replace the sump seal, I will put in a high pressure pump to keep the engine well lubricated.
Old 08-10-2009, 05:58 PM
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Originally Posted by ADM
Well, at idle the gauge was reading 40psi (cold) and when warm, 20psi hot idle. Under driving, it was at 40psi but let go of the throttle and it drops to 20psi but no less.

Now, its either of these 4.

1. The sender was bad.
2. The oil pump might be giving up or the pick up pan is really dirty.
3. The oil the garage put in for me when I gave it in for an oil change when I got the car a month shy of a year ago (I never let anyone work on my car but I could not even spare time for a simple job) so I don't know what oil was poured into my engine.
4 & worst case scenario: some bearings are really wearing out.

So, I thought since I am removing the pan to replace the sump seal, I will put in a high pressure pump to keep the engine well lubricated.
That's normal LT1 oil pressure right there. GM spec for LT1 oil pressure at hot idle is 7 psi min... 20psi hot idle is fine. As long as you get ~10psi for every 1000 rpm, you're good to go.
Old 08-10-2009, 06:02 PM
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Thats what I thought...Those numbers looked alot like what MY car runs...I couldnt figure out what was unusual about it
Old 08-11-2009, 12:48 AM
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Thats what mine runs and at WOT 60psi
Old 08-11-2009, 01:21 AM
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Yep those are about the pressures my car runs also, i have the stock gauge and a mech Autometer one going into the spot on the DS of the block right above the oul filter...



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