Oil pan leaking again.
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Cruising
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Oil pan leaking again.
So I put new gaskets on my 2003 LS1. At first It was successful until.... Its the two piece butterfly style oil pan. The lower pan is fine however where the upper pan bolts to the engine block about half the bolts are weeping oil. I torqued at 18 foot pounds and the pan gasket is sealed. But there are drops forming on the M8 bolts. This was such a complete bear. Any ideas ? Thank you in advance.
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So I put new gaskets on my 2003 LS1. At first It was successful until.... Its the two piece butterfly style oil pan. The lower pan is fine however where the upper pan bolts to the engine block about half the bolts are weeping oil. I torqued at 18 foot pounds and the pan gasket is sealed. But there are drops forming on the M8 bolts. This was such a complete bear. Any ideas ? Thank you in advance.
Melting Slicks
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I'd clean the bolts and the holes and put some gasket sealer on them. If that doesn't work I think you need to re-do the pan gasket.
Have you looked for leaks elsewhere? Seems unlikely you would only see drops on pan bolts if it were coming from somewhere else though.
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Cruising
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Oil pan leak.
I did put the RTV on the corners. As I remember there is a the outer pan seal and then another ring gasket around each bolt all on an aluminum frame. 18 foot pounds is what I have for the torque setting. There was no instruction to do a graduated torque but I did do a rotational tightening. I'm gong to RTV each leaking bolt. I did apply a straight edge before Installing the upper pan though. The whole oil pan is dry...just bolts are leaking in my opinion.Thank you all for the input.
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They're not stretch bolts and would only be stretched if someone over-torqued them into elasticity and then at that point they'd usually break because they're small. Bolts don't "wear out" if they're not torqued to elastic deformation, that's not how materials science works.
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They're not stretch bolts and would only be stretched if someone over-torqued them into elasticity and then at that point they'd usually break because they're small. Bolts don't "wear out" if they're not torqued to elastic deformation, that's not how materials science works.
you do you, I prefer to not snap bolts or here, reuse old bolts, and cause oil leaks. 😂😂😂
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Cruising
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Oil pan gasket...
So I just looked at a picture of the upper oil pan gasket. The bolt seals are on the outside of the pan gasket...so its gonna be a redo. This time I'm going to get the pan machined. Thank you all for the input.
Melting Slicks
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I did put the RTV on the corners. As I remember there is a the outer pan seal and then another ring gasket around each bolt all on an aluminum frame. 18 foot pounds is what I have for the torque setting. There was no instruction to do a graduated torque but I did do a rotational tightening. I'm gong to RTV each leaking bolt. I did apply a straight edge before Installing the upper pan though. The whole oil pan is dry...just bolts are leaking in my opinion.Thank you all for the input.
This is a screenshot from the downloadable manual that is stickied here and indicates it is for a 2004. My printed manual for a 2000 also says 106 lb in.
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From: Montgomery City, MO
I did put the RTV on the corners. As I remember there is a the outer pan seal and then another ring gasket around each bolt all on an aluminum frame. 18 foot pounds is what I have for the torque setting. There was no instruction to do a graduated torque but I did do a rotational tightening. I'm gong to RTV each leaking bolt. I did apply a straight edge before Installing the upper pan though. The whole oil pan is dry...just bolts are leaking in my opinion.Thank you all for the input.
If you're getting oil leaking from the bolts it's possible (and a lot more likely) it's coming from somewhere else and then "wicking" around the perimeter of the aluminum frame. My rear main seal started leaking like this and the entire rear half of the oil pan gasket frame was wet with oil that had seeped forward from the rear main.
These bolts aren't torque-to-yield. The aluminum threads in the engine block would sooner strip out than deform the steel bolts. I rarely resort to juvenile name-calling, but in this case it's warranted - you're an idiot, and should go elsewhere so you can more effectively interact with people of similar intellectual capacity. I would recommend Tik-Tok as a starting point.
Last edited by spfautsch; Mar 27, 2024 at 05:44 PM.
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Ya know, tech stuff isn't for everyone.....and doubling-down only makes you look worse. Why not hang out in the General section where the water isn't so deep? Here's a link: https://www.corvetteforum.com/forums/c5-general-103/