Question about 1993 Nissan Altima

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Gas in the oil on my 93 nissan altima GXE

Need help on how to take the cylinder head off..........does the lower timing chain have to come off to take the cylinder head off? Need possible solutions as to why gas is in the oil.

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Yes you need to take off the chain, then very carefully remove camshaft. then take off oil pan and you should be able to get to the cylinder bottoms.

there could be a crack some were in the cylinder or pistons.

Posted on Jun 24, 2009

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Throw it away

Posted on Jul 22, 2009

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Only one reason fuel is in the oil. Somehow it got past the rings. You have a fueling issue. Your way overfueling. Most likely a sensor needs replacement or even a fuel pump may too much pressure or is you have a fuel return line it may be plugged or pinched. This is not a reason to take off the head unless you had low compression before this happened. If you have low compression now you may have what we call washed cylinders. Try squirting a little oil into eacdh cylinder. And crank. If the compression gets alot better this points to rings not sealing. What may of happened was you had an ignition misfire which allowed just fuel to enter the cylinder. This unburnt fuel will eventually ruin a cylinder wall if run long enough. We just diagnosed a truck that drove 400 miles with a dead miss. It scored the cylinder so bad the engine was destroyed.

Posted on Jul 14, 2009

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1 Answer

I NEED TIMING CHAIN DIAGRAM FOR VQ20 NISSAN SERFIRO 1999


Instructions
  1. Remove Your Timing Chain
    • 1 Check your owner's manual for the recommended mileage for replacing your timing chain. Replacement for a Nissan Altima is 60,000 miles.
    • 2 Locate the timing chain. Replace it if the automatic chain adjuster (also known as the tensioner) is damaged or worn.
    • 3 Drain the cooling system and disengage the negative battery cable. Undo the spark plug wires and set the No. 1 piston at "Top Dead Center" (TDC) of the compression stroke.
    • 4 Disconnect the engine undercover, vacuum and fuel hoses, harness and connectors, drive belts, power steering reservoir, alternator and bracket, upper radiator hose, air duct, front exhaust tube, intake manifold collector supports, collector and exhaust manifold and the distributor.
    • 5 Prop up the oil pan and take out the front engine mounting, the valve cover, camshaft sprockets, cam bearing caps, camshafts, cylinder head bolts (reverse the installation order), cam sprocket cover, upper chain tensioner, chain guides and chain, idler sprocket bolt, cylinder head, intake manifold and cylinder head gasket and the steel oil pan.
    • 6 Place a steel cutter between the steel and aluminum oil pans. Slip the cutter around the oil pan's edge. Disengage the steel oil pan, baffle plate, oil strainer and the front tube.
    • 7 Secure the car on jack stands and place a seal cutter in between the oil pan and cylinder block. Slip the cutter around the oil pan's edge.
    Install Your Timing Chain
    • 8 Reconnect the crankshaft sprocket, oil pump drive spacer, idler sprocket and lower timing chain. Position the lower timing chain on the sprockets and line up the mating marks.
    • 9 Rub on an unbroken bead of liquid gasket and put in a new front cover and oil seal. Secure the bolt at 105 to 112 foot pounds (142 to 152 Nm).
    • 10 Eliminate any old material from the pan and cylinder block mounting surfaces. Rub on a 3.5 to 4.5mm bead of liquid gasket over the oil pan and cylinder block.
    • 11 Attach the upper timing chain to the idler sprockets and secure the cylinder head bolts.
    • 12 Refill the cooling system and add clean oil in the engine.
    • 13 Hook up the negative battery cable and any other disconnected parts or items. Start the engine and look for leaks.
Tips & Warnings
  • Procedures for replacing timing chains in Nissan Altimas vary slightly depending on engine size.
  • Make sure the new timing chain matches the chain you are removing.

Jun 12, 2012 | Cars & Trucks

1 Answer

Needing a timingbelt diagram 1997 Altima Nissan GXE L4-2.4L


  • It's a timing chain not a belt.

  • This diagram shows how to position the lower timing chain so that the mating marks line up.


11_25_2011_1_46_21_am.jpg

  • Lower timing chain tensioner and timing chain guide positioning.

11_25_2011_1_48_38_am.jpg
Double check the mating mark alignment of the upper timing chain and idler sprocket.

11_25_2011_1_50_07_am.jpg
  • Make sure that the upper timing chain and camshaft sprocket mating marks align.


11_25_2011_1_51_12_am.jpg

  • There are the diagrams you requested.
  • Hope this helps...



Nov 25, 2011 | Cars & Trucks

1 Answer

1997 Nissan-Datsun Altima GXE L4-2.4L timingbelt diagram


  • It's a timing chain not a belt.

  • This diagram shows how to position the lower timing chain so that the mating marks line up.


11_25_2011_1_46_21_am.jpg

  • Lower timing chain tensioner and timing chain guide positioning.

11_25_2011_1_48_38_am.jpg
Double check the mating mark alignment of the upper timing chain and idler sprocket.

11_25_2011_1_50_07_am.jpg
  • Make sure that the upper timing chain and camshaft sprocket mating marks align.


11_25_2011_1_51_12_am.jpg

  • There are the diagrams you requested.
  • Hope this help.

Nov 25, 2011 | Cars & Trucks

1 Answer

Does 2007 altima 3.5 have a chain or timing belt


After 2002 Altima offers two types of engine: the new 4 cylinder 2.5 L QR model engine which is fairly powerful (175 horsepower) and, I believe, one of the best engine in its class the 3.5L V6 VQ model engine with 240 horsepower. The same V6 model as in in the Nissan Maxima, Pathfinder and Murano.
Both engines feature continuously variable valve timing using a silent chain instead of timing belt. Throttle cable is gone - the throttle operates electronically by wire based on gas pedal sensor readings. This design provides smoother transmission shifting and lower emission.
The 2007 Nissan Altima 3.5L Sedan, has a Timing Chain, and an Ignition Coil Pack. NO DISTRIBUTOR.

Nov 14, 2010 | 2007 Nissan Altima 3.5 Sedan

1 Answer

Need firing order on a 2001 nissan altima gxe


For the 2001 Nissan Altima GXE 2.4L DOHC In-Line 4-Cylinder:

Firing Order:
1-3-4-2

Cylinders:
........(back)
1......2.......3.......4
........(front)

Distributor:
.(back)
3.......1
....O....
4.......2
(front)

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!



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1 Answer

What could be the the cause of gas n water in my engine oil?


can be a few causes such as cracked block -cracked head- head gaskets -manifold crack

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2 Answers

1999 Nissan Sentra GXE timing belt/chain maintenance


good day Sir, your nissan sentra 1999 gxe have a timing chain this is some tips for your routine maintenance.
Replace engine oil
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1 Answer

Does a 1999 nissan altima gxe have a timing belt or a timing chain and if it does have a chain does it have to be replaced as often as a belt?


I think it has a chain. look where the timing chain/ belt should be. if there is a large plastic cover, it has a belt, it its a aluminum cover, it has a chain. there is no replacement interval on a chain.

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1 Answer

Nissan Timing Chain still rattling


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