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Discussion Topic:
leaking rear main seal
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supereal |
01-26-2012 @ 7:45 PM
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Senior
Posts: 6819
Joined: Oct 2009
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Sealer seldom does the job. The usual cause of that leak is overfilling the oil pan, using synthetic oil, or on oil weight too thin for the purpose. Rope seals, regardless of the care used in installation, almost always seep. That is why the old saying about Fords: "If it ain't leaking', it probably needs fixing'".
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PeterFord |
01-26-2012 @ 5:48 PM
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New Member
Posts: 125
Joined: Jan 2011
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Dan: I have run the engine about an hour. I am using regular detergent oil 10w 30. I did leave some extra length on the rope seals, the amount they told me to leave. Maybe I need to run the engine longer. Although, I must say, I am tempted to use this Leak sealer. But I will give it some more time. Thank you
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PeterFord |
01-26-2012 @ 5:47 PM
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New Member
Posts: 125
Joined: Jan 2011
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Dan: I have run the engine about an hour. I am using regular detergent oil 10w 30. I did leave some extra length on the rope seals, the amount they told me to leave. Maybe I need to run the engine longer. Although, I must say, I am tempted to use this Leak sealer. But I will give it some more time. Thank you
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Stroker |
01-26-2012 @ 4:11 PM
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Senior
Posts: 1460
Joined: Oct 2009
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Peter: The "rope" seals should not be trimmed, as the extra length helps them swell to fit the void. The only other thing I can think of is if you have elected to use synthetic or semi-synthetic oil. These wonderful compounds,(for modern tight-clearance motors) will "creep" into the smallest spaces, and play havoc with the clearances that early Ford's were designed with. Having said this, how long have you run the engine? Sometimes "time heals all wounds". Dan
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PeterFord |
01-26-2012 @ 3:42 PM
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New Member
Posts: 125
Joined: Jan 2011
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I have a 51 Ford F1 pickup. I just removed and replaced my oil pan (repair on the Boss). I installed new gaskets and front and real seals. The seals on this truck are the rope type. I took special care to install them properly. The rear seal is leaking. All bolts are tight. I have run the truck for about 50 miles since the repair. Is this normal. Do they need time to seat themselves. Should I pour in some rear main sealer into the oil (No-Leak engine oil treatment)? The No-Leak product advertises itself as a treatment for rear seals, explaining that it swells old rubber seals. Will this type of product work on the rope type of seal? I believe I have graphite rope seals. Many thanks Peter
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