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Jeep Wrangler YJ
YJ General Discussion
94 4.0 and blown out frost / freeze plug
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<blockquote data-quote="deadpool1" data-source="post: 440962" data-attributes="member: 21229"><p>that heater plugs love to fail. many have bolt there that we tighten up, installed..</p><p>and has seals too (rubber?) that if 30years old are hard seals and cracked then loosens and it files out at 15psi pressure ! bam and engine overheats and or worse.</p><p>a shop guy looks inside the<strong> cylinder jackets</strong> to see if car was allowed to rust inside, and at the damage on the rear for that heater plug.</p><p>if the seals fail and no rust inside just replace it. (but we all know its not easy, with rusted bolts) called gaining access that does not cause more damage.</p><p>nobody on a forum can see the car or know the extent of rust on any car on earth. Impossible all you can do is try.</p><p>Abuse is not replacing Antifreeze say every 3 to 5 years, allowing the anti-rust chem's in it to fail hard. 3 years is good life, we can also use acid tests on the coolant to make sure it id not go acidic. (litmus strips)</p><p></p><p></p><p>seeing is believing. we look and see the damage and if it looks like the PO abused the car all ( new freeze,/core ) plugs replaced and 10x that is 1 seen weeping.</p><p>Im not sure if BC has salted roads but one look under the car and we see it is from Provence's full of salted roads ,we can in use run autofaqs and see</p><p>where the 30 year old car lived its whole life</p><p>but just one look under car is your answer. (I cant)</p><p></p><p>pulling the intake/exhaust MAN, the bolts love to snap, I'd use heat (torch) the heads of bolts before touching them with any wrench.</p><p>get them smok'n hot and spray PEN oil there and as it cools it sucks in the PEN lube and can help. there are now great youtube videos doing all this.</p><p></p><p>watch rust belt videos and learn. there are plenty to see.</p></blockquote><p></p>
[QUOTE="deadpool1, post: 440962, member: 21229"] that heater plugs love to fail. many have bolt there that we tighten up, installed.. and has seals too (rubber?) that if 30years old are hard seals and cracked then loosens and it files out at 15psi pressure ! bam and engine overheats and or worse. a shop guy looks inside the[B] cylinder jackets[/B] to see if car was allowed to rust inside, and at the damage on the rear for that heater plug. if the seals fail and no rust inside just replace it. (but we all know its not easy, with rusted bolts) called gaining access that does not cause more damage. nobody on a forum can see the car or know the extent of rust on any car on earth. Impossible all you can do is try. Abuse is not replacing Antifreeze say every 3 to 5 years, allowing the anti-rust chem's in it to fail hard. 3 years is good life, we can also use acid tests on the coolant to make sure it id not go acidic. (litmus strips) seeing is believing. we look and see the damage and if it looks like the PO abused the car all ( new freeze,/core ) plugs replaced and 10x that is 1 seen weeping. Im not sure if BC has salted roads but one look under the car and we see it is from Provence's full of salted roads ,we can in use run autofaqs and see where the 30 year old car lived its whole life but just one look under car is your answer. (I cant) pulling the intake/exhaust MAN, the bolts love to snap, I'd use heat (torch) the heads of bolts before touching them with any wrench. get them smok'n hot and spray PEN oil there and as it cools it sucks in the PEN lube and can help. there are now great youtube videos doing all this. watch rust belt videos and learn. there are plenty to see. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
94 4.0 and blown out frost / freeze plug
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