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#1 |
Registered User
Join Date: May 2005
Location: Texarkana, AR 71854
Posts: 397
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Rear Main Seal
What is the steps of replacing a 250 I6 rear main seal? It looks totally different than a 350's
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2006 Titan SE Crew Cab Daily Driver 2005 Mazda Tribute (Wifes car) 1969 C10 SWB 350/3 Fleet "Max" 1969 Chevelle 2 door 350/3 |
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#2 |
Registered User
Join Date: Jul 2005
Location: Idaho
Posts: 12
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The rear main bearing cap must be removed then you can use a small punch to drive the seal out. It helps if someone can rotate the crank while you tap on the seal. To install the new one, the gasket set I bought came with a little plastic shim that you use to "shoehorn" the new seal in place. The shim prevents damage to the seal as you start it into the block. Again, rotating the crank as you push the seal into place will make the job easier.
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#3 |
Registered User
Join Date: May 2005
Location: Texarkana, AR 71854
Posts: 397
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is it hard to remove the bearing cap?
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2006 Titan SE Crew Cab Daily Driver 2005 Mazda Tribute (Wifes car) 1969 C10 SWB 350/3 Fleet "Max" 1969 Chevelle 2 door 350/3 |
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#4 |
Registered User
Join Date: Jul 2005
Location: Idaho
Posts: 12
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You have to remove the oil pan and then use a breaker bar to remove the 2 bolts that hold the main cap in place. It is a lot easier if the engine is removed from the truck. My engine is bolted to an engine stand right now so it is way easier to work on.
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#5 |
Registered User
![]() Join Date: Apr 2004
Location: The Other Maine!
Posts: 2,236
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You should replace the rear main bearing along with the new rear seal or the fix will be only temp.
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1968 Chevy 4x4 307 4 speed |
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