GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

got a oil leak on the 5.7

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Old Nov 27, 2005 | 06:26 PM
  #11  
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Originally Posted by 4.8T
thats nice i have about 6-8" to work with betweent the motor and trany will it be easier to just pull the motor the rest of the way out to do this is it that hard?
It might be. Can you just get the tranny out of the way? Probably easier. Its just not easy to do. Fighting one side of the seal and then the other kinda slips off. Ya just cant force it. But a good amount of room will help. Do you have a new seal?
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Old Nov 27, 2005 | 06:48 PM
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nope gotta get one. discount parts said $65 i said **** you i'll go to gm he well it says here there price is $99 so i looked it up at gmpartsdirect and it was $18 dealer and $10 theres. so i'm gonna go to gm tommorow and nappa and such
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Old Nov 27, 2005 | 06:49 PM
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so let me get this right you put oil on the outside of the seal so it will go onto the cover easier but not at all on the crank and inside of seal.
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Old Nov 27, 2005 | 07:36 PM
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Originally Posted by 4.8T
so let me get this right you put oil on the outside of the seal so it will go onto the cover easier but not at all on the crank and inside of seal.
Yes, thats it. Just dont oil the inside lip that rolls on the crank.
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Old Nov 28, 2005 | 06:11 AM
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Mike, you already have that 5.7 in? Hows it running? Did you get a cam in there, or just the stocker?

Damn, you gotta let me know these things. LOL So the turbo ready to go on?
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Old Nov 28, 2005 | 08:03 AM
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Originally Posted by 99Silver5.3
Yes, thats it. Just dont oil the inside lip that rolls on the crank.
There is a teflon type of insert on the inner part of the seal that is supposed to "melt" itself to the crank and seal better. Some say dry, others say wet install. Rumor is the teflon portion will not seat properly if coated with oil.
BTW I had the exact same issue. There is a chance that the rear cover is not aligned properly in which case replacing the seal only will not help ( we know, had the seal only replaced once and did not help ). The rear cover is a PITA to install when on an engine stand and impossible to torque to 22 ft/lbs. You can try replacing only the seal but if it continues to leak you need to pull the tranny ( at a minimum ), the cover, and re-align it with the oil pan and block.
Sure wish GM woulda used alignment dowels on the covers ( my only gripe about the GenIII construction ).
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Old Nov 28, 2005 | 10:18 AM
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Originally Posted by ktmrider
There is a teflon type of insert on the inner part of the seal that is supposed to "melt" itself to the crank and seal better. Some say dry, others say wet install. Rumor is the teflon portion will not seat properly if coated with oil.
BTW I had the exact same issue. There is a chance that the rear cover is not aligned properly in which case replacing the seal only will not help ( we know, had the seal only replaced once and did not help ). The rear cover is a PITA to install when on an engine stand and impossible to torque to 22 ft/lbs. You can try replacing only the seal but if it continues to leak you need to pull the tranny ( at a minimum ), the cover, and re-align it with the oil pan and block.
Sure wish GM woulda used alignment dowels on the covers ( my only gripe about the GenIII construction ).
Alignment,thats what I was going to say
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Old Nov 28, 2005 | 12:12 PM
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well it would not go in because the seal was already installed on the cover i never replaced it when i removed the cover to tear down the eng. it says to replace it and i said "oh it'll be alright" we'll it wasn't so i had to take the cover off pull the seal off and got a new one today just waiting to get off work to get it done. wish me luck. this is the only thing holding me back.
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Old Nov 28, 2005 | 12:16 PM
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Originally Posted by Snake Eater
Mike, you already have that 5.7 in? Hows it running? Did you get a cam in there, or just the stocker?

Damn, you gotta let me know these things. LOL So the turbo ready to go on?
yep got it in got to drive it for a night it was sick when it hooked. ran great with stock vette tune then i added some timming and fuel just for the night and it got really nasty i scared trina.lol but then i found the oil leak so i gotta fix that and rivera is gonna help buy some pipping because he wants to see the turbo go on and is impatient. i just need the coupler for the tb and maf. i got all the clamps and everything just need three couplers and pipping unless i speed density then i juist need one coupler and a air intake temp sensor.
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Old Nov 28, 2005 | 12:22 PM
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I bet the old seal wouldnt have leaked if it was aligned correctly.
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