racerdave

Does anyone know what a bad one sounds like?

I have this clicking, and I am trying to pinpoint what it is without takin the cams and everything out...

Does a LMA click (most of the time) consistantly, and sometimes randomly?

The noise is cooming from the drivers side of the #1 cylender near where the intake manifold meets the head. That is where the LMA's are right?

Also, how can I tell if it is bad by looking at it?

Provocateur

I can tell you right now that you have bad LMAs. I had a buddy that had this ticking problem that I couldn't pin point, even after a valve adjustment. He was reading up and thought that replacing them would get rid of the ticking. He replaced them and the ticking was gone. I guess it is a common problem with first gen B16s.

If you want to go through the effort to test them, just push them with your finger from every angle and if it isn't smooth at all times, it has rusted out and needs to be replaced. Just pick up a full set of ITR LMAs...they are pretty cheap.

racerdave

Wow, thanks, I was waiting for someone to come up with somthing...

What is the replacement like? I hope it does not involve removing the head?

Or can I just take the cams out?

Provocateur

It was fairly simple. It took me about 2 hours to do on my buddy's B16. You have to remove the cams, remove the rocker shaft bolts, remove the rocker shafts and rocker arms, remove the PS mount and jack the motor up in order to fully remove the rocker arms and then pull the LMA's out with your fingers.

Use this: http://tech.hybridgarage.com/tech/ma...e%20manual.pdf. It has all the torque specs for everything and the removal procedure for the rocker arms and such.

You will have to get a large allen socket that fits into the rocker shaft bolts.

racerdave

Dude you are awesome.. this is helpin me alot

dubcac

It's a problem in first gen B16's because the heads are so old...they're high mileage and very worn.

Provocateur

True story. A 30k mile first gen B16 has had a lot of time to sit around and rust out those lost motion assemblies.

racerdave

k, but if the head was just taken in to a machine shop, and had a valve job, wouldnt they have noticed somthing like that?

Provocateur

Probably not. They look good on visual inspection, but you have to plunge them with your finger to determine if they are bad or not.

racerdave

can I test them without takin everything apart?

P.S. I am havin a hard time finding any for sale, the ITR ones from the stealarship are like 30$ a pop x 8 thats 240.. I dont want to spend 240.. I was thinkin around 170... Anyone?