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Cobra Forums
The Terminator
Engine/Tuning
Head gasket - you’re smart, I’m stupid
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<blockquote data-quote="03yllwguy" data-source="post: 16293795" data-attributes="member: 13592"><p>Friends, request guidance for the mechanically impaired. </p><p></p><p>Vehicle: 2003, 117k miles, daily driven since Dec 02, pulley tune only.</p><p>Symptom: quarter size coolant leak on the floor after longer drives & oil cooler soaked in residue and dirt (noticed it since under the car a year ago).</p><p></p><p>Assumption: oil cooler needed rebuilt with new gasket.</p><p></p><p>Reality: identified a 1” length section of my head gasket that appears to be leaking </p><p>[ATTACH=full]1600733[/ATTACH]</p><p></p><p>- I have NO oil in coolant nor coolant in oil</p><p>- Car runs fine, plugs are clean, no other issues than coolant on the floor infrequently</p><p></p><p>- Compression test as follows: </p><p>1) 165psi</p><p>2) 170psi</p><p>3) 175psi</p><p>4) 165psi</p><p>5) 145psi</p><p>6) 150psi</p><p>7) 155psi</p><p>8) 170psi</p><p></p><p>Question:</p><p></p><p>- How can I have a leak and still pass a compression test (I assume these numbers are reasonable for a 117k mile car)?</p><p></p><p>- Considering the aforementioned details, is this critical? Likely to spread?</p><p></p><p>Thanks in advance</p></blockquote><p></p>
[QUOTE="03yllwguy, post: 16293795, member: 13592"] Friends, request guidance for the mechanically impaired. Vehicle: 2003, 117k miles, daily driven since Dec 02, pulley tune only. Symptom: quarter size coolant leak on the floor after longer drives & oil cooler soaked in residue and dirt (noticed it since under the car a year ago). Assumption: oil cooler needed rebuilt with new gasket. Reality: identified a 1” length section of my head gasket that appears to be leaking [ATTACH=full]1600733[/ATTACH] - I have NO oil in coolant nor coolant in oil - Car runs fine, plugs are clean, no other issues than coolant on the floor infrequently - Compression test as follows: 1) 165psi 2) 170psi 3) 175psi 4) 165psi 5) 145psi 6) 150psi 7) 155psi 8) 170psi Question: - How can I have a leak and still pass a compression test (I assume these numbers are reasonable for a 117k mile car)? - Considering the aforementioned details, is this critical? Likely to spread? Thanks in advance [/QUOTE]
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Head gasket - you’re smart, I’m stupid
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