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Old 04-21-2018, 09:41 AM   #1
Hyper
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2.34 LR destroker

Default Installing eccentric pulleys without degreeing cams

I had to replace my timing belt tensioner, and while I am at it - I am thinking about installing my LIC eccentric pulleys to try to get the intake cams back to nominal values

my questions is this - is it worth doing without degreeing the cams just to try and hit the stock timing markings as close as possible, or its pointless? obviously I won't be pulling out my motor just to put on eccentric pulleys, so I can always leave them to the next engine build
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Old 04-21-2018, 11:20 AM   #2
stu
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I've had them on for years, and I don't degree my cams. They work great, easy to adjust. I was worried that they might move over time but they stay put.
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Old 04-21-2018, 11:31 AM   #3
Hyper
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you adjust them after the tensioner is released, right?
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Old 04-21-2018, 12:43 PM   #4
stu
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I do it with the pin installed, then pull and do the rotations. If its off after that I just adjust it with the pin out.
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Old 04-23-2018, 08:58 PM   #5
Homemade WRX
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I'd adjust once the belt is tensioned.
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Old 04-24-2018, 04:19 AM   #6
Hyper
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I absolutely love them
took me some time to dial them in, and now my cam adapt values in autronic are close to zero, amazing!
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Old 04-24-2018, 06:01 AM   #7
Bram
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I wouldnt touch em. Looks like they have those little orange bearings inside. Subaru stopped using the single race type of bearing back around 2011 because of timing failures.
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Old 04-24-2018, 06:25 AM   #8
Hyper
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I plan to run them for the summer and then take it apart and inspect
I have heard they don't last long, but either way they are recommended to be changed every other race
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Old 04-24-2018, 08:21 AM   #9
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Quote:
Originally Posted by Bram View Post
I wouldnt touch em. Looks like they have those little orange bearings inside. Subaru stopped using the single race type of bearing back around 2011 because of timing failures.
I've heard this mentioned before but have never used them to confirm that they are the old style bearing.
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Old 04-24-2018, 10:29 AM   #10
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Quote:
Originally Posted by Homemade WRX View Post
I've heard this mentioned before but have never used them to confirm that they are the old style bearing.
Im only saying that from seeing pictures of them. They look like single race bearings to me.
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Old 04-24-2018, 10:33 AM   #11
Bram
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Quote:
Originally Posted by Hyper View Post
I plan to run them for the summer and then take it apart and inspect
I have heard they don't last long, but either way they are recommended to be changed every other race
So your going to use them. Without degree-ing the cams to see if it even actually changes things, or worsens things. Then pull them out every second race?

Sounds like a bad idea to me.
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Old 05-05-2018, 07:06 AM   #12
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this is what they look like





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Old 05-22-2018, 01:16 AM   #13
stu
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I had them on for 5 years, replaced them 2 years ago on a new build and never had any problems with either set.
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