Re: Dumb question!
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Home away from home
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Use some Indian Head gasket sealer on a new gasket, that should stop it.
Posted on: 2010/11/13 20:45
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Re: Dumb question!
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You need to torque each cover bolt to about 740 ft lbs for a firm seal, then spray down the engine compartment with febreze.....
Please note that I haven't tried this yet, but may, soon, for the same reasons.....
Posted on: 2010/11/13 20:46
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When two men ride the same horse, one has to be in the back...
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Re: Dumb question!
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Home away from home
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Quote:
You need to torque each cover bolt to about 740 ft lbs for a firm seal, then spray down the engine compartment with febreze..... That kinda follows my guidelines of "tighten it until it breaks then back it off 1/4 turn..."
Posted on: 2010/11/13 20:47
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Re: Dumb question!
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Kevin, is that an early 55 400??
Posted on: 2010/11/13 20:51
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Re: Dumb question!
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Aren't the rocker covers subject to the same belling and stretching of holes the oil/trans pan is? Have you verified that is not a problem on one or more holes. I know I belled all of them slightly the opposite way before installing and then put non hardening permatex on one side of gasket and torqued to spec. So far so good.
Posted on: 2010/11/13 21:01
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Re: Dumb question!
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I would suggest removing the valve covers, inspecting the flat areas where the gaskets sit for denting due to over-tightening of the fasteners. If you have that condition it is going to take a lot of goop to seal the covers. I have hammered them back flat, that lets the gasket do its job. If the metal is all pulled downward where the bolt holes are the gasket doesn't have a fighting chance.
Posted on: 2010/11/14 13:22
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Re: Dumb question!
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To Pat Green and other readers:
I do not have my service manual handy, but yoiur spec of tightening the valve cover to 740 ft lbs is incorrect to say the least. That is appluying 740 lbs of force on a typical 1 ft long ratchet handle. For comparison a head nut on a straight 8 is about 64 lbs so 740 would be abut 12 times a much on a tiny-tiny bolt. Check your source, perhaps it is 740 INCH-pounds or about 6 1/2 ft lbs. Checking for a flat mounting surface on the cover is most important Best of luck, the v8 does not have a reputation as a leaker . Fred Kanter Kanter Auto Products Boonton nj
Posted on: 2010/11/15 6:39
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Re: Dumb question!
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Home away from home
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Lighten up. I think EVERYONE except u took Pat Greens post as bit of humor.
BTW, 740 INCH-pounds is about 60 Foot pounds, not 6. 740/12 is about 60. not just 6.
Posted on: 2010/11/15 7:39
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VAPOR LOCK demystified: See paragraph SEVEN of PMCC documentaion as listed in post #11 of the following thread:f
https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=7245 |
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Re: Dumb question!
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Home away from home
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The manual says 15-18 FOOT-pounds of torque.
Since there is a leaking problem: Try tightening hte CORNER bolts first to about 2 or 3 foot pounds. Then tighten the center bolts to 2 or 3 foot pounds. Repeat the process until the 15-18 foot pounds obtain. For first tightening i would short the 15-18 foot pounds to about 12. Retighten later on after 300 miles or so. In situations like this i like to cement the gasket to the rocker cover and RTV on the head. THe RTV makes for EZ release of the gasket without breaking. It helps alot if there are several removals of the cover over short periods of time.
Posted on: 2010/11/15 7:55
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VAPOR LOCK demystified: See paragraph SEVEN of PMCC documentaion as listed in post #11 of the following thread:f
https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=7245 |
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