Is Lucas stop leak a good idea? - Ford Powerstroke Diesel Forum
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post #1 of 8 Old 01-28-2013, 12:19 PM Thread Starter
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Is Lucas stop leak a good idea?

Hey guys a few weeks back I changed my transmission fluid along with both exterior and interior filters wasn't hard to do however I stripped one of my bolts while putting the pan back one and I think it's developing a small leak I don't want to have to drain the fluid again just to change the bolts their kind of old and I read that leaks can be caused by old bolts that might have shrunk so I was just thinking of adding some Lucas stop leak until its time to change again or until I have money to just upgrade my pan would that be a smart move or would I be causing more harm then good by adding this stuff?
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post #2 of 8 Old 01-29-2013, 01:02 PM Thread Starter
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Really no response? No one on here has ever dealt with this product?
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post #3 of 8 Old 01-30-2013, 06:42 PM
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I just got done cleaning this crap out of my cooling system. It took hours! I can tell you that the stuff works and works well, but they will plug up small orfices, filters and coolers, things that should not be plugged. I have no exp with the tranny stuff, but i would tap it and put a bigger bolt in or even seal with silcone.

With all that said, is it an additive with small particles in it to plug holes or is just a seal sweller???

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post #4 of 8 Old 01-30-2013, 08:14 PM
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ive never used the stuff and ive never taken a tranny apart. but ive seen a tranny apart. dont really understand how all those small passages work but any thing used to plug a hole is sure to plug up those tiny passages. just park on the street untill you get the leak fixed.

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cut me some slack, its a work truck.
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post #5 of 8 Old 01-30-2013, 08:49 PM
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NO do not add that to your trans!! the 5r110 is a very pickey trans i would fix it the correct way... cant you replace one bolt at at time or you can re-tap it with the pan on and get a new bolt?? and only use mercon sp from ford


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post #6 of 8 Old 01-31-2013, 10:15 PM Thread Starter
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I returned the stuff I never put it in I was changing my oil the other day and it was completely dry around the pan no leaks no one responded by then so I didn't even risk it ill just take care of that bolt when I change the pan or when I have to change the filter again whatever comes first but thanks for the input anyway guys I appreciate it.
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post #7 of 8 Old 02-03-2013, 06:22 PM
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Quote:
Originally Posted by HighAngleHell View Post
I returned the stuff I never put it in I was changing my oil the other day and it was completely dry around the pan no leaks no one responded by then so I didn't even risk it ill just take care of that bolt when I change the pan or when I have to change the filter again whatever comes first but thanks for the input anyway guys I appreciate it.
Good, Never add anything to your oil especially a "leak stop".

Steve
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post #8 of 8 Old 02-03-2013, 06:39 PM
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Re: Is Lucas stop leak a good idea?

Consider this, how does ANY stop leak know the difference between a fluid passage and a leak? I had a heater core packed full of that crap in a used car that I bought years ago.

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