Help!! Engine Miss

[KRatcliff]

Originally Posted by Tim Lisson

You mentioned in one of the posts recently it does rev up freely without load? You need to take this to a drag strip and get after it.

Also, i would verify your alternator is working properly along with a seperate ground wire from the alternator to the head. I know what your thinking, it's bolted to the block...

It is funny you mention that. I bought 100' of the braided ground strap material from Ebay. Do you know how far 100' will go?

Lets just say that if I ever crash my car, I won't die from the impact. It will be from strangulation.

[Ben Kallies]

Tim,

Leakdown test was performed cold. Engine hasn't been run in 2 weeks.

-Ben

[Tim Lisson]

Ben,

First of all, I'm no expert so take this for what it's worth....

1) After dyno session, did you back the rockers off when it sat until you got it in the car?

2) When I do a leak down, I typically run the car up to 140-150 then attempt to zip through the test with warm cylinders. The cylinders that are over 5% I would smoke test, go by a cheap cigar and have it over the carb/intake opening and exhaust port/ header tube when performing this scientific test... don't laugh, it works.

Other than everything else mentioned, get it to a track or bring it up north. My trans builder has a chassis dyno and has had many BBC on it. Sounds like a fun mystery!

Tim

[Alan Roehrich]

Now the chassis dyno sounds like an excellent idea, that's even better than track time. you test the whole car, and you can hook diagnostic equipment to it and then duplicate the problem.

[Ben Kallies]

I've actually been thinking about the chassis dyno idea for a couple of weeks now. There's a speed shop with an in-ground dyno about 10 miles from my house. I'm not certain how experienced the operators are in terms of diagnostic abilities, but at the very least, I'd be able to see how it responds at full throttle under load.

-Ben

[Arnold Greene]

Ben, make sure you have plenty of clutch pressure before you put it on the chassis dyno. Good luck.

[Ben Kallies]

Arnold,

Thank you. I wouldn't have thought of that.