I ran a compression and leak down test on my S2000. The compression was a strong 245-252psi in all cylinders so a leak down test wasn't necessary but I tested the # 1 cylinder just for practice. I wrote up a how-to with a few pics.

The how-to is here: http://robrobinette.com/S2000Compression.htm

Here's an example pic of the leak down test:


The spark plugs were a nice cocoa brown too so the engine seems to be in good shape. I'm going to adjust the valves next. I'm hoping to find a reason for my 184 hp dyno run (190 after tuning with the fuel computer).

 

Thanks Rob. Nice Job!

Are you going to post a how to for the valve adjustment?

 

Yea, I'm sure I'll do a valve adjustment how-to also.

 

Thanks, Rob

What are your opinions on the Harbor Freight compression and leak down testers? I know some of HF's stuff is great value, and some is crap right out of the box.

 

Thanks for this, Rob. I should be doing this soon myself.

 

The HarborFreight.com compression and leak down testers worked fine. The leak down tester seems to be a pretty popular unit. I looked around for leak down info and they're everywhere.

 

Great stuff Rob! It is awesome that you find time and effort to do all that and share your knowledge with others

 

Awesome work, Rob. Thanks for sharing the knowledge to us all the time.

 

Did you ever find out the reason?

 

Low reading dyno would be my guess