read this and be warned about your motor

[JFP in PA]

Originally Posted by Bladecutter

Hey Jake,

Do you think you can post up pictures of a crapped out valve lifter vs a new/good one?

BC.

To what end? There isn't much to see as the problem is internal to the lifter.................

[Paul]

Interesting discussion. In most applications a collapsed hydraulic lifter makes enough noise that's it's impossible not to notice it. I'm puzzled when I read that 20 could fail without making a lot of loud rattling noises.

[Brucelee]

Originally Posted by Paul

Interesting discussion. In most applications a collapsed hydraulic lifter makes enough noise that's it's impossible not to notice it. I'm puzzled when I read that 20 could fail without making a lot of loud rattling noises.

I was thinking about this. If you take any Boxster that I have owned and sit it next to say, any Lexus. Then, listen to the cars as they idle. To my ear, the Box engine will alway sound like you can hear the lifters clacking away. The Lexus sounds like an electric motor mostly, whisper quiet.

It COULD be that this clacking noise is the result of bad lifters in most cases.

Just a thought?

[JFP in PA]

First of all, the lifters get “stuck”, like in one position, but not necessarily in the collapsed position. So don’t assume that noise is the result of the lifters as it often is not. Noise also comes from other sources, such as the injectors which in these engines are also particularly noisy, they produce a rather audible “tick” each time they squirt fuel, so they also add to the confusion. Secondly, most of the so-called “start-up clatter” in the M96 after it has sat for a bit is not the lifters, it is the hydraulic chain tensioners, and this can be “fixed” by any owner that want to address it, very simply as well…………

[Jake Raby]

Originally Posted by Paul

Interesting discussion. In most applications a collapsed hydraulic lifter makes enough noise that's it's impossible not to notice it. I'm puzzled when I read that 20 could fail without making a lot of loud rattling noises.

The lifters usually do not make noise when they are only collapsed.. They have to come pretty much apart before they make enough noise for an untrained ear to notice.

My Dad is in the Hospital awaiting Surgery.. I'll post more on this next week after he is home recovering.

Yes we probably will be having lifter discussions here for many moons to come.. I continue to find serious issues with the engines, one of which we recently found that blew my mind.. (another piece of plastic!)

[RandallNeighbour]

Jake, I'll be praying for your dad's surgery. BTW, I tried to PM you but your mailbox is full.

[Brucelee]

Best wishes to your Dad, Jake.

[2K3_Boxster_S]

Jake,

Godspeed for a quick recovery for your dad. all differences aside.

Ryan