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AFJuvat's Avatar
 
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Headscratcher Part 3 - Guess the problem

87 944 NA, 97000 miles.

Owner replaced headgasket, retensioned belts, etc. Head machined to spec. Water pump replaced as well

Leaking oil at the headgasket., small leak at waterpump gasket

Inspection indicates gasket was installed properly, no sealants were used, no physical failure of the gasket or head

No obvious defects in waterpump, OE gasket installed, no physical damage.

AFJuvat

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Old 03-01-2003, 08:34 PM
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Leaking oil at head gasket

Possible worn out piston rings.

Leaking water pump, perhaps partly blocked cooling system, causing excess pressure, allowing pump to leak.

Just a guess.

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Old 03-01-2003, 08:43 PM
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cracked block?

Old 03-01-2003, 09:29 PM
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I would guess a cracked block also. Where is the oil leaking out at the headgasket (which cylinder)?
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Old 03-01-2003, 10:16 PM
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Improper torque applied, improper torque on water pump, didn't bleed air out of coolant, hotspot caused head warpage. didn't hook up fans, overheating caused gasket failure. overtorque-ing on all the above. Wrong type coolant, phos. ate away the goodies. wrong sized belt on water pump pulley caused overheating. cracked stuff/housing/block/head. didn't use new nuts and washers with head.
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Last edited by todwic; 03-02-2003 at 12:26 AM..
Old 03-02-2003, 12:23 AM
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heheh Todwic got it on his "shotgun" approach.

Overtorqued head and waterpump bolts.

When overtorqued, the studs will "pull" put of the case slightly, raising a small "mound" of metal around the stud, preventing a good seal.

AFJuvat

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Old 03-02-2003, 09:15 AM
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