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oil pump play
http://4g61t.org/forum/viewtopic.php?f=6&t=4989
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Author:  Guest [ Sun Aug 17, 2003 5:57 pm ]
Post subject:  oil pump play

How much side to side play should be in the drive gear of the oil pump?

Author:  LILEVO [ Sun Aug 17, 2003 6:03 pm ]
Post subject: 

1.6L
Gear End Play
Drive Gear ............... (4) .0031-.0055 (.080-.140)
Driven Gear .............. (4) .0024-.0047 (.060-.120)
Gear Tip-To-Body Clearance
Drive Gear ............... (4) .0063-.0083 (.160-.210)
Driven Gear .............. (4) .0051-.0071 (.130-.180)
Relief Valve Spring
Free Length ............................ 1.835 (46.60)
Spring Pressure (1) ....... 13.4 @ 1.579 (6.1 @ 40.10)
(1) - Lbs. @ In. (kg @ mm).
(2) Wear limit is .0079" (.200 mm).
(3) Wear limit is .0138" (.350 mm).
(4) Wear limit is .0098" (.250 mm).

Author:  Guest [ Sun Aug 17, 2003 8:37 pm ]
Post subject: 

Okay, so there are gear marks in the housing, so I'm just going to assume that there's too much play.

How the heck do I get the drive gear loose? I can't get the nut on the timing belt side to come off.

Author:  91_LaserRS [ Sun Aug 17, 2003 9:22 pm ]
Post subject: 

if you are looking to replace the gears inside the housing you will need to pull the lower t-belt cover off. and remove the 10or 12mm bolts off and pull it thru.
i have a extra one here that you are more than welcome to. the oil pump was replaced when i rebuilt the 4g63. so it has about 10K on it. well if they are the same as 4g63

Author:  Guest [ Mon Aug 18, 2003 2:15 pm ]
Post subject: 

The drive gears should be the same, but I don't think that the front cover is? I could be off.

How do you break that 12mm nut loose on the drive gear? I've done everything short of trying to put the gear into a vise and going from there.

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