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haulin ***** and suckin gass
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62 Posts
Discussion Starter · #1 ·
Ok recently iv been having a ticking noise.it sounded like a header leak so i put new gasket on and no change in the tick so i pulled off the valve cover and ran the engine with it off and the sound was definitely coming from somewhere in the valve train.turned off the engine and inspected to see if any rockets were lose or had any slop in the valve lash .everything seemed to be right.the engine has about 800/1000 miles on it and have not changed the oil yet.i think a lifter my be collapsed ... was thinking on re doing the valve lash a see if it go's a way...here's some specs on my engine

Sbc 389 stroker
650 DP holley
Camel hump heads 194s
XE 284 comp cam
1.5 self aligning roller rocker
comp cam harden push rods

Thanks Rob:thumbup:
 

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haulin ***** and suckin gass
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62 Posts
Discussion Starter · #2 ·
I used to pretty quiet .but i have been racing it a lil ...it still builds great power but its only that one at as been ticking the other side of the engine sounds fine ..but you mite be right.i mite have a spec of crud in the lifter.i did notice when i have the valve cover off running the engine that one of the rockers didn't fill up oil as much as the others were ..so i thinking i should pull out that lifter and clean it or just change the oil with something thicker
 

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haulin ***** and suckin gass
Joined
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62 Posts
It used to be pretty quiet .but i have been racing it a lil ...it still builds great power but its only that one at as been ticking the other side of the engine sounds fine ..but you mite be right.i mite have a spec of crud in the lifter.i did notice when i have the valve cover off running the engine that one of the rockers didn't fill up oil as much as the others were ..so i thinking i should pull out that lifter and clean it or just change the oil with something thicker
.i did use a brake in additive and broke in the cam the proper way
 

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haulin ***** and suckin gass
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62 Posts
Discussion Starter · #5 ·
I really hope the is not f**led up .i just got it running good .and yes the cam i have is vary respectible in power.well ill try changing the oil .i am probably going to put sine brad Penn oil because of the high zinc it has in the oil
 

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haulin ***** and suckin gass
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62 Posts
Discussion Starter · #6 ·
So F bird 88 your xe284 made the same ticking noise then after changing the oil it went away.now if one of the lifter was not pumping oil up to the rockers Like the others were that could make it tick??
 

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haulin ***** and suckin gass
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62 Posts
Discussion Starter · #11 ·
It all the time sounds like maybe 1 or 2 mite be ticking .it dose it at higher rpm's to..it sounds a lot quiter but not that much after the oil change
 

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haulin ***** and suckin gass
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62 Posts
Discussion Starter · #12 ·
it can , yes. I;d give the rotella T oil time to work its magic.

Like I said you may need to monkey with the rocker nut adjustment.
Mine likes generous preload.

Right at the top, typical hot rodder hyd lifter preload is noisey on mine.

You do have screw in or pinned rocker studs , right?
So a full turn of preload ..that sounds like a lot ..i have a rocker studs
 

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haulin ***** and suckin gass
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62 Posts
Discussion Starter · #13 ·
Yea i will most likely get a solid cam ..i just don't want the cam to get messed up a destroy my bottom end.so as long as the push rods are spinning it should be ok as far as the cam and lifters go
 

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haulin ***** and suckin gass
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62 Posts
Discussion Starter · #14 ·
Ok i re-adjusted the valve lash and still a tick .but when i was adjusting them i noticed one of the rockers slowly raising back up when i stoped bumping the motor over .same side it is ticking from .could that be the bad lifter
 

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haulin ***** and suckin gass
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62 Posts
Discussion Starter · #15 ·
Well i took the intake off to inspect the lifters and found one of the cam lobe was roast .the lifter had some pitting and the cam lobe had flat spots ....soooo now im thinking what do the main/rod bearings look like.what is the chance that the bearings are ok
 

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haulin ***** and suckin gass
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62 Posts
Discussion Starter · #16 ·
I will probably never buy another comp cam.this is the third one that has failed.and yes i did the proper break in for the cam.before i had the tick it ran great had good power but then it just took a ***** on me out the blue.im done with comp cam i rather run a summit special before i buy another comp cam
 

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haulin ***** and suckin gass
Joined
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62 Posts
Discussion Starter · #18 ·
If i do put another cam in the highest lift that i would be comfortable is .510 because the 291 heads are stock and have pressed in rocker studs
 

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haulin ***** and suckin gass
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62 Posts
Discussion Starter · #19 ·
Yea i probably got a defected cam ..i broke in the cam and used the comp cam zinc break in additive .the motor had about 800 to 1000 miles on it before the cam went south
 

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haulin ***** and suckin gass
Joined
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62 Posts
Discussion Starter · #20 ·
I do admit i did not have valve springs to match the cam.im thinking of building a new motor.this one was a slap it together and run it engine and i should have known better to do that and expect it to hold up to racing it.next one will be done right and take my time on.i really didn't have that much money in this one just a bunch of parts i had and threw it together
 
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