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05-21-2022, 08:25 PM | #1 |
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Join Date: Jul 2020
Posts: 74
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Rear main seal question
I have an 81A block. From what I’ve seen, the correct rear main seal halves are 78-6335 and 78-6336. I attempted to install the upper, 6335, and noticed it seemed a little too big. I tried a rubber mallet to seat and, surprise surprise, it split in two. Do I have the wrong part? Is there a technique for installing it?
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05-25-2022, 05:00 PM | #2 |
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Join Date: Jul 2020
Posts: 74
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Re: Rear main seal question
I had an idea that maybe someone can chime in on. I was thinking that maybe I need to start with the seal clocked one direction with the majority of the seal in the groove, then use a rubber mallet to rotate the seal into its finished position. Any thoughts?
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05-25-2022, 07:38 PM | #3 |
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Location: Alabama
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Re: Rear main seal question
Upper as in the block right ? These are for the slinger type rear main not for rope seal.
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05-25-2022, 09:06 PM | #4 |
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Join Date: Jul 2020
Posts: 74
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Re: Rear main seal question
Yes, the ‘labyrinth’ style with no rope. One half goes in the block, the other in the oil pan. No rope
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05-26-2022, 11:02 AM | #5 |
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Location: Alabama
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Re: Rear main seal question
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05-26-2022, 06:23 PM | #6 |
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Re: Rear main seal question
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05-26-2022, 07:35 PM | #7 |
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Join Date: May 2010
Posts: 893
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Re: Rear main seal question
They just slip in they only go one way. Another question is 21 head studs or 24?
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