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White Smoke At Idle With Old Heads, Oil Pressure At 0

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Old Oct 2, 2005 | 12:04 PM
  #1  
roughskinjrz's Avatar
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From: Miramichi, NB
Car: 86 Monte Carlo
Engine: Blown 489
Transmission: TH400
Axle/Gears: 9" 370s
White Smoke At Idle With Old Heads, Oil Pressure At 0

ok first off, before i took the motor apart, the car would smoke when im at a stop light just idling, but when i drive it goes away, its like when you start your car in the cold and it smokes til it warms up, well thats what happens at idle, and WARM for me.

also for the last couple months the oil gauge stays between 0-10, sometimes when its cold it stays at like 10-15, then when its warm drops to 0. the car runs fine, with no problems.

except for these 2, since then, i put on new heads/intake/headers/carb/distributor, etc.

everything from the block up was replaced, would this fix those problems?
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Old Oct 2, 2005 | 12:26 PM
  #2  
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From: Manassas, VA
Car: 89 Formula Firebird
Engine: 305 - Demon 525
Transmission: 700R4
valve seals?
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Old Oct 2, 2005 | 12:30 PM
  #3  
roughskinjrz's Avatar
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From: Miramichi, NB
Car: 86 Monte Carlo
Engine: Blown 489
Transmission: TH400
Axle/Gears: 9" 370s
valve seals are in the heads right?

i put new trick flow aluminum heads on, so i should be ok there

what about the 0 oil, would that be due to the valve seals?
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Old Oct 2, 2005 | 12:46 PM
  #4  
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From: Manassas, VA
Car: 89 Formula Firebird
Engine: 305 - Demon 525
Transmission: 700R4
Sorry I'm like half awake at work here. If there is no oil pressure then it could be something else.
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Old Oct 2, 2005 | 12:48 PM
  #5  
roughskinjrz's Avatar
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From: Miramichi, NB
Car: 86 Monte Carlo
Engine: Blown 489
Transmission: TH400
Axle/Gears: 9" 370s
hopefully nothing serious, the block was just redone last year, bored 30 over, flat tops, new crank, all that stuff. new oil pump.

maybe its my gauge, but it still goes up and done, but mostly stays at 0
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Old Oct 2, 2005 | 04:34 PM
  #6  
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From: Grand Rapids, MI
Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
White smoke is coolant burning off, bluish is oil, black is fuel (rich). Of the first 2, which exactly is it? You say white, but talk about wondering about oil burning off.

And no, valve seals could not create a 0 oil pressure situation. At 0 psi, if you don't hear anything, probably a bad sender.
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Old Oct 2, 2005 | 04:39 PM
  #7  
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From: Yellowknife, NWT, Canada
Car: 84 Z28
Engine: 357
Transmission: TH-350C
Axle/Gears: 3.43
I would suspect a head gasket if your getting white smoke and in the worst case you have a cracked head or block.

As for the very low oil pressure reading, im 99% sure you have a faulty sender or gauge. At that low of pressure it wouldnt be long before things start hammering away.
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Old Oct 2, 2005 | 05:54 PM
  #8  
roughskinjrz's Avatar
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From: Miramichi, NB
Car: 86 Monte Carlo
Engine: Blown 489
Transmission: TH400
Axle/Gears: 9" 370s
well i just got the motor running GREAT today, a buddy came over and set the timing.

the gauge still reads it 0 even with all the changes from the block up, i will buy a mechanical gauge to see if thats what the problem is.

but there are no knocks or ticks, runs great.
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Old Oct 3, 2005 | 06:32 PM
  #9  
roughskinjrz's Avatar
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From: Miramichi, NB
Car: 86 Monte Carlo
Engine: Blown 489
Transmission: TH400
Axle/Gears: 9" 370s
so if i test this with a mechanical oil gauge, does a sender have to hooked up??

inside the mechanical oil gauge kit, was a hose, some threaded fittings, and a couple other things, instructions how to hook it up

connect tubing to gauge using the compression sleeve and compression nut... install other end of tube to oil pressure port, use adapter in kit if needed, connect using adapter, compression sleeve, and compression nut. secure all tubing. reconnect battery, start and run engine for 30 seconds, turn off and check for leaks.

this is what the instructions say more or less.
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Old Oct 3, 2005 | 06:42 PM
  #10  
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From: Yellowknife, NWT, Canada
Car: 84 Z28
Engine: 357
Transmission: TH-350C
Axle/Gears: 3.43
no sender is needed for a mechanical gauge, the oil goes through the tube right into the gauge moving the needle hence the "mechanical"
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Old Oct 3, 2005 | 06:54 PM
  #11  
roughskinjrz's Avatar
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From: Miramichi, NB
Car: 86 Monte Carlo
Engine: Blown 489
Transmission: TH400
Axle/Gears: 9" 370s
im stupid thanks for the help.

it has ALOT of tubing, can i throw this up under the dash??
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Old Oct 3, 2005 | 06:57 PM
  #12  
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From: Yellowknife, NWT, Canada
Car: 84 Z28
Engine: 357
Transmission: TH-350C
Axle/Gears: 3.43
I would suggest cutting it to the length you need, but if you want to shove it under the dash just make sure you dont kink it or have it near the steering column or pedals or your going to have a nice oily mess on your feet
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Old Oct 3, 2005 | 07:01 PM
  #13  
roughskinjrz's Avatar
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From: Miramichi, NB
Car: 86 Monte Carlo
Engine: Blown 489
Transmission: TH400
Axle/Gears: 9" 370s
yeah ill make sure

im hoping its the gauge, but with the oil at 0, i still drove it hard, the motor never overheated, there were no knocks, ticks, nothing. the motor ran fine.
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Old Oct 19, 2005 | 06:40 PM
  #14  
Buck268's Avatar
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From: Troy, MI, USA
I can't say for sure, but if my guage was showing zero I think I would have checked that out before a couple months went by...
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Old Oct 19, 2005 | 06:56 PM
  #15  
Stekman's Avatar
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From: Grand Rapids, MI
Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
Trust me, you'd hear it if it were at 0 in actuality, stupid or not.
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Old Oct 19, 2005 | 07:36 PM
  #16  
roughskinjrz's Avatar
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From: Miramichi, NB
Car: 86 Monte Carlo
Engine: Blown 489
Transmission: TH400
Axle/Gears: 9" 370s
yeah the sender was bad, mechanical gauge works fine.
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