2001 RX300 - DIY rear main seal replacement
#16
Driver School Candidate
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I had the rear main seal leak. Used 5-30 high mileage oil on a RX300 2000 and it seemed to stop. I just put in synthetic and the leak returned.
I'll be using the high mileage stuff next time.
I'll be using the high mileage stuff next time.
#17
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Location: California
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I forgot to include this in my last post. In the case of my Lexus the rear main seal cut a pretty deep groove into the flange of the crankshaft. I found these guys online who have a seal surface repair sleeve ( Speedi-Sleeve) for this crank shaft. Just click on the link and scroll down to Toyota/Lexus with a 3.625 diameter seal (that is .002 over 92mm) and you will find the sleeve and plastic installer. If you buy a sleeve get the installer.
http://www.silver-seal.com/c=RGZxYP9...epair_sleeves/
Phil
http://www.silver-seal.com/c=RGZxYP9...epair_sleeves/
Phil
#18
Pit Crew
iTrader: (6)
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Hi All, Thought I would chime in to offer my experience on this issue. I own 2 older Lexus vehicles and I do all my own maintenence/ repair work on my cars. I developed the same RMS leak on my 2002 RX300 at about 125k miles. I was dreading the 20+ hour labor intensive job just to replace this seal and stumbled upon the AUTO RX after doing some google searches and reading on the BITOG site.
Like others hear I was sceptical and after the treatment cycle the leak was a little worse as expected by the instructions. Then about halfway through the rinse cycle, ~1500miles, the leak just stopped! I was amazed and thankful. Since that first Rinse cycle, on the next oil change, I did another full treatment just to ensure a more complete clean, and heck it can't hurt for all the other seals either.
I am just hoping the AUTO RX has given me a seal that can go another 60k miles or more. I plan on adding the maintenence 3-4oz. to each oil change to maintain the seals cleanliness and letting the dino oil's seal conditioners do there job.
On a side note, I also used this in my 98 GS400, as they have the VVT-i cam seals that are known for sweating/leaking oil and are just as much of a PITA to change as the RX RMS is, the entire intake cam and timing belt has to be removed to change these VVT-i seals. MY 1UZ-FE is now purring like a cat at idle owing to the other benefit of AUTO RX that dislodges the carbon and piston rings and improves compression during the engine cleaning process.
I am a True Believer in this product!
Like others hear I was sceptical and after the treatment cycle the leak was a little worse as expected by the instructions. Then about halfway through the rinse cycle, ~1500miles, the leak just stopped! I was amazed and thankful. Since that first Rinse cycle, on the next oil change, I did another full treatment just to ensure a more complete clean, and heck it can't hurt for all the other seals either.
I am just hoping the AUTO RX has given me a seal that can go another 60k miles or more. I plan on adding the maintenence 3-4oz. to each oil change to maintain the seals cleanliness and letting the dino oil's seal conditioners do there job.
On a side note, I also used this in my 98 GS400, as they have the VVT-i cam seals that are known for sweating/leaking oil and are just as much of a PITA to change as the RX RMS is, the entire intake cam and timing belt has to be removed to change these VVT-i seals. MY 1UZ-FE is now purring like a cat at idle owing to the other benefit of AUTO RX that dislodges the carbon and piston rings and improves compression during the engine cleaning process.
I am a True Believer in this product!
#19
Lexus Champion
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
I forgot to include this in my last post. In the case of my Lexus the rear main seal cut a pretty deep groove into the flange of the crankshaft. I found these guys online who have a seal surface repair sleeve ( Speedi-Sleeve) for this crank shaft. Just click on the link and scroll down to Toyota/Lexus with a 3.625 diameter seal (that is .002 over 92mm) and you will find the sleeve and plastic installer. If you buy a sleeve get the installer.
http://www.silver-seal.com/c=RGZxYP9...epair_sleeves/
Phil
http://www.silver-seal.com/c=RGZxYP9...epair_sleeves/
Phil
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