timing chain tensioner oil hole (LOOK)

98COBRA281

10 Year Member
Nov 24, 2007
1,348
30
59
Port St. Lucie, Florida
so i just got my car back together from a cam swap. im going turbo soon so i went with them MHS stage 2 turbo cam. so when i took my motor apart i noticed that i had some wear on the timing chain guide on the driver "L" side of the motor, which i thought was odd because it only has 8700 miles on it

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so i got to looking and noticed that only the passenger side tensioner had a oil hole in it, to oil the timing chain, and the driver side did not??!?!?! just a dimple in it:shrug: at first i thought it was wrong, but after some research i found out that ALL OF THEM ARE LIKE THAT! BTW ive taken many modular's apart before and mine over 15 times and never noticed it!

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so i wanted to some how make the driver side have the oil hole also, at first i thought about using two passenger side tensioners, but they ARE DIFFERENT casting and will not work! so i pulled both tensiones apart to see the differences in them

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found a broken plastic piece in my tensioner also!

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the only thing that is different is the hole in it, and a black plastic oil restrictor in the piston of the tensioner, sits right on top of the spring

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so i went to a local junk yard, pulled a few passenger side tensioners off, took the parts out and cleaned them up!

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then used all the parts and rebuilt both of mine to have oil feed holes to the timing chain!!!

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i got the car all up and running today, everything is working great and i now know that both of my timing chains and guide's have a oil supply to them! and i figured i would do a quick write up if somebody runs into the same problem, or just wants the extra oil flow to the chain! so if you doing a cam swap soon you might want to swap your's also!!!!

:SN:
 

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Wow, that's strange. When I did my cam swap a few months ago, I was thinking about replacing the tensioners along with the chains and guides. At Mr. Nick Mckinney's advice, I kept the stock tensioners. Now I see one of the probable reasons he advised that. :nice:
 
Wow, that's strange. When I did my cam swap a few months ago, I was thinking about replacing the tensioners along with the chains and guides. At Mr. Nick Mckinney's advice, I kept the stock tensioners. Now I see one of the probable reasons he advised that. :nice:

these are actually the OEM ford ones! all modulars, 4.6/5.4 2v and 4v only have the oil feed on the passenger side!