ls1 fever

I have a noise coming from the passenger side upper end on my Ls1. Think it might be a bearing in one of the rockers going. can these be replaced ?



audio link here
https://www.youtube.com/watch?v=kZTl...1&feature=plcp

dodson55

iTrader: (18)

yes the bearings can be replaced pull the valve cover to make sure its the problem it sounds valve train related could also be a lifter bad as well

ls1 fever

how will I know if the rocker bearings are bad?

ls1 fever

where can I buy the bearings to replace them?

ls1 fever

how do I post a picture from my computer ??

Undertow74

iTrader: (45)

drain your oil, if you have needle bearings in there, there ya go. pull the valve covers and look at the trunions on the rockers, you will be able to tell if the bearings went

Sales3@Texas-Speed

iTrader: (2)

Unfortunately this is a common issue, but most guys will upgrade to the Comp Cams Trunion Upgrade Kit to fix this issue and to prevent it as well.

Here is a link to our site:
http://www.texas-speed.com/p-361-com...s-engines.aspx

ls1 fever

I do not have little needles in my oil but I do have fine metal shavings that were collected on the magnetic drain plug

89 formula350

iTrader: (8)

whats the story on the car?

just driving one day and you heard a lifter tap?

installed a cam and noticed this new noise right away or even sometime after?



just trying to get an idea why you think its the rocker arm. although its very possible incorrect push rods and collapsed lifters sound like this too

ls1 fever

car was cammed when I bought it last year.
basically I missed 3rd gear bounced it off the limiter and heard the noise slightly after.

brucer

i'll guess, bent pushrod

89 formula350

iTrader: (8)

see if you can locate the area with a stethoscope or long screwdriver to your ear so you can at least narrow down the suspect area and remove the valve cover. push rods would be a great idea! still could be a rocker arm but dont limit yourself to those two items. take a good flashlight and fully inspect the valve spring too.

ls1 fever

ok thanks guys
if its a bent rod should I replace them all?
also, I don't know the particulars on this car so how do I know what rods to buy?

Sales3@Texas-Speed

iTrader: (2)

Are you using an aftermarket camshaft/aftermarket valvespring combination?

ls1 fever

the car was already setup when I bought it last June.
camshaft/springs yes after market not sure what but not stock.

Sales3@Texas-Speed

iTrader: (2)

Can you tell if you have aftermarket pushrods as well?

ls1 fever

I would assume the pushrods are aftermarket if the cam is too right?

Sales3@Texas-Speed

iTrader: (2)

I would assume so as well, but with the many different things that we seen and heard about, I wouldn't totally write off that a factory pushrod could still be in there.

Sales3@Texas-Speed

iTrader: (2)

Also, have you pulled the rockers to verify that they are all in good working order, just to make sure none of them are seized up or anything unusual?