DIY : Oil Cooler O-ring Replacement V35
#1
DIY : Oil Cooler O-ring Replacement V35
I recently replaced my oil pan gasket due to a bad leak and was shocked to see oil still dripping ( pretty bad leak ) , upon further investigation saw that the oil came from behind the oil cooler . Did some searching on here and saw this was a common issue with our cars , so I immediately began to search for a DIY and none came up, I called Cerritos Infiniti and they charged $275 for the work , so I decided to do it myself and make a DIY thread .
Tools :
pliers
ratchet 1/2 drive
14mm socket
22mm deep socket
( container ) something to drain the oil / coolant in
paper towels
degreaser
Q-tips
Parts : O-ring part # 21304-JA11A ( paid $16 )
Step # 1
Drain oil into container from drain bolt with 14mm socket ( pictured below )
Step # 2
Remove oil filter ( pic below )
Step # 3
Remove connector bolt with 22mm deep socket ( pic below )
Step # 4
Remove lower coolant hose from oil cooler using pliers and let coolant drain into container
Then remove upper hose connected to oil cooler ( oil cooler is free at this point )
Step # 5
Clean oil cooler ( mine had a lot of grime and build up )
remove old o-ring
( how it looks cleaned up )
Step # 6
Replace O-ring lubricate top of O-ring with oil
Step # 7
Clean mating surface on engine ( where oil cooler bolts on )
NOT PICTURED
Step # 8
Slowly center oil cooler with connecting bolt inside and begin to screw it in
Angled pipe goes to top coolant hose and straight shorter pipe to lower coolant hose
I hand tightened first bolt first, secured hoses in original spots and then used pliers
to pinch clamps on to original location
Torque connector bolt to spec 36ft/lbs
Step # 9
Screw oil filter back on
Double check your work
Should look like this
Step # 10
Add oil / coolant and check for leaks
Tools :
pliers
ratchet 1/2 drive
14mm socket
22mm deep socket
( container ) something to drain the oil / coolant in
paper towels
degreaser
Q-tips
Parts : O-ring part # 21304-JA11A ( paid $16 )
Step # 1
Drain oil into container from drain bolt with 14mm socket ( pictured below )
Step # 2
Remove oil filter ( pic below )
Step # 3
Remove connector bolt with 22mm deep socket ( pic below )
Step # 4
Remove lower coolant hose from oil cooler using pliers and let coolant drain into container
Then remove upper hose connected to oil cooler ( oil cooler is free at this point )
Step # 5
Clean oil cooler ( mine had a lot of grime and build up )
remove old o-ring
( how it looks cleaned up )
Step # 6
Replace O-ring lubricate top of O-ring with oil
Step # 7
Clean mating surface on engine ( where oil cooler bolts on )
NOT PICTURED
Step # 8
Slowly center oil cooler with connecting bolt inside and begin to screw it in
Angled pipe goes to top coolant hose and straight shorter pipe to lower coolant hose
I hand tightened first bolt first, secured hoses in original spots and then used pliers
to pinch clamps on to original location
Torque connector bolt to spec 36ft/lbs
Step # 9
Screw oil filter back on
Double check your work
Should look like this
Step # 10
Add oil / coolant and check for leaks
Last edited by Jaygotboost; 02-20-2013 at 01:31 AM.
The following 9 users liked this post by Jaygotboost:
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#3
I drove ttrank's car solo
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G35 sedan w/ too much money in mods
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The following users liked this post:
Jaygotboost (02-20-2013)
#7
Yup Cerritos Infiniti charged that much , being that I needed it right then and there I had no choice . But I did see that you have them much cheaper , I posted a pic with receipt because I knew I was paying $10 more lol
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#8
but at least you got it done and done right
#9
thanks I am glad It is finally done , for some reason Cerritos Infiniti is much more expensive than other dealers further out , maybe location . They sit in a super high traffic area and are always full
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Thanks for the great write up and pictures. Really informative and helps a newbie like me a lot.