Mitsubishi Montero & Montero Sport This sport utility vehicle offers more size than the other Mitsubishi SUVs, but manages to keep a sporty look and comfortable feel, unlike many larger SUVs.

Cam Plug O Rings

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  #11  
Old 06-12-2010, 06:30 PM
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You're half right. The good news is that the $16.50 parts you show in the photo can be returned. They are the seals for the front of the cams and these don't leak. They are often replaced when the timing belt is being changed but that is a whole differernt story and you have to take the front half of the motor apart just to get to them.

The parts you want to replace (the ones that cause the oil leaks) are thin o-rings that seal the rear cam plugs. They are circled in your diagram at the back of the head. Number 01201. (I think-it's a bit hard to read) They should cost a lot less than the seals. Did the dealer sell you them as well? In that diagram you can see the plug with the flange (012020) and bolts that you will be pulling out to change the rings. So it's just the one o-ring at the rear of each head.

Hope this helps

Ron
 

Last edited by jrmdir; 06-12-2010 at 06:46 PM.
  #12  
Old 06-12-2010, 06:40 PM
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Just to be clear. That diagram is for just one head - one side of your engine. If you placed two diagrams side by side then you would see that there are two o-rings and plugs at the left and right rears.

The two expensive seals in your photo would go at the front left and right but you are not touching that area for this project.

Ron
 
  #13  
Old 06-12-2010, 06:46 PM
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So the the rings I have circle in the schematic are the right ones correct (01291 and 03130)?? The dealer however gave me the wrong o-rings correct? Sorry I'm new at this.

Funny story I changed my idler arm yesterday and today. They told me it would only take an hr to 2 hrs. It ended up taking a whole day and a morning. I couldn't bust the ball joint loose until I got a sledge hammer. It felt good though It cost me $60 bucks and the dealer quoted me 230 bucks to do it.
 
  #14  
Old 06-12-2010, 06:56 PM
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One more thing, would bearing/brake grease work to place around the o-ring?
 
  #15  
Old 06-12-2010, 06:58 PM
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No,

You need two of the 02191's and none of the 03130's. The parts in the photo are 03130's. Take them back. If the dealer did not sell you the 02191's you need to buy two of them. When you see them you'll understand they are much thinner and flexible rubber rings - not hard metal parts like the 03130's.

Tell the dealer you are only replacing the REAR CAM PLUG O-Rings, not the front cam seals. Again, picture two copies of your diagram sitting side by side: Two 02191's, one at the rear of each diagram, and none of the 03130's

Send me a Private message - I'll be happy to talk or e-mail if you're still not sure what is what.

Good job on the idler arm! These cam plug o-rings are a much easier project.

Ron
 
  #16  
Old 06-12-2010, 07:03 PM
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No, Wouldn't use brake grease. Challenger4x4's idea of silicone grease is good if you have some. Pool supply shops carry it. Or you can use some clean motor oil as that's what the ring is designed to be in contact with.

Ron
 
  #17  
Old 06-12-2010, 07:12 PM
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Thanks, after I do this it's on to repacking wheel bearings. If I can do all three of these It will only of cost me a $100.00. The dealer quoted me $660.00 for all three repairs.
 
  #18  
Old 06-14-2010, 02:54 PM
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Take a look
 
Attached Thumbnails Cam Plug O Rings-rear-cam-passenger.jpg  
  #19  
Old 06-14-2010, 03:30 PM
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Tizzo:

Got your PM. Yes those appear to be the bolts you want. 13mm heads with a round recess between them (about 2' in diameter and 1.5" deep) Once the bolts are out the flange and that recess area pull straight out of the head toward the firewall (with a little careful prying) Once you get one side out it will all make sense. Good luck and feel free to ask more questions if needed.

Ron
 
  #20  
Old 08-07-2011, 12:32 AM
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Thank you, that was a big saving on changing those seals. Mechanic was charging me $70 an hrs to fix oil leaks..
 


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