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Originally Posted by ascalise
I replaced these on my 81 SD about a month ago and they leak just as bad as they did before. Any ideas?
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I did this job on my SD back in 97 or so and it never sealed completely either. Did you drop the lower oil pan and inspect the grommet hole thoroughly to see if it was completely cleaned out? Do you have a fair amount of blowby on your engine? I think this was my problem. Also, I removed my tube without removing the pan, but it was such a bit** that I should have just taken the pan off, it would have been easier.
When I rebuilt my engine last year, it was much easier. All the parts were clean and easy to reach on that engine stand. I didn't even spill my beer

I cleaned everything with rubbing alcohol first, and added a thin film of black RTV around the grommet. It's so leak free now I'm worried about rust.