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Discussion Starter #1
sup guys.
i'm having some clicking noise for a while now and i think its my lma's,

i'm using agip 10-60 racing oil in my engine, and i think that this is the problam,

anyone experiencd 10-60 on a D?

thanks
ps
anyone know the part number of a a d-series lma's?

thanks
 

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Discussion Starter #3
What cam? and are you sure that its LMA's when was the last time there was a valve adjustment and what kind of oil is this?
hi i'm not sure 100% that the noise is from the lma's.
i know some pepole that use the same oil and dont have any noise issues,

the cam is a 59300 and it is not worn,

lash is ok,
 

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ej1
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FrodoGT said to adjust the lash five and seven thousands for this cam to quiet it down.
 

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ej1
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Yah it sucks, these cams wear down real fast if you don't have enough zinc and phosphorous in the oil. They're known for the loud ticking. How did you brake in this cam?
 

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60 is pretty heavy

Id change the oil and run 10x-40 if the tolerances are all made for thicker oil

If it changes teh sound, but you want thicker, then you could try 20w-50

Idunno. Im fairly IN experienced when it comes to racing, but 10x-60 just sounds WAY unnecessary
 

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Discussion Starter #12
Yah it sucks, these cams wear down real fast if you don't have enough zinc and phosphorous in the oil. They're known for the loud ticking. How did you brake in this cam?

i did the brake in thing, i hold it @3000 rpm for about 10 or more minutes.
it was over 2 years ago so i cant remember,
 

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ej1
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Thats cool. Sorry to hear about it. Some guys were only getting 3 good years out of this cam. If you replace it with another 59300 I'd recommend getting the next one cryo treated.
 

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Discussion Starter #14
well, i hope its not the cam,

does anyone have he masurments of the lobes so i could check mine,
 

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Brokedick Millionaire
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hi i'm not sure 100% that the noise is from the lma's.
i know some pepole that use the same oil and dont have any noise issues,

the cam is a 59300 and it is not worn,

lash is ok,
59300 base circle = noise.
 

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Discussion Starter #18
ok, i removed the valvetrain.
before about a month ago when i first heard the ticking noise i also suspected the lma's so i removed them and changed them with other ones that i had, back then i didnt realized that the ones that i removed are are different that the ones i changed too. :S

the ones that i removed are on the right(which where originaly on the head) were sticky and i assumed that this was the noise source,
here is a video of them. ( the video quality is low, so.. the click sound happand when i relesed the spring, and not when it reached the end like seems on the vid)

YouTube - ‪MVI_8373.avi‬‎

, the left one is the one i changed too,
notice that the left one is kinda shorter.






here are the pictures of the camshaft from today:

cyl 1:



cyl2:
 
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