Can I do a leakdown test on an engine that has never been run or do the rings have to seat first? I'm planning on testing my upcoming build since I have a leakdown tester now.

Wanna come over and try out your leakdown tester on my smallblock? If your'e just itching to use it... :D

Sure you can. You may be indicating a little high, but it shouldn't be too far off. Good idea, in fact. I'd lock the engine about 5 degrees after TDC compression and then test.

What tester do you have?

Wanna come over and try out your leakdown tester on my smallblock? If your'e just itching to use it... :D

I would really hope you don't need it. Anytime you want it let me know. As long as you have air.

I have this one. http://store.summitracing.com/egnsearch.asp?Ntt=leakdown+tester&N=0+303763&D=303763&Ntk=KeywordSearch

I would really hope you don't need it. Anytime you want it let me know. As long as you have air.

I have this one. http://store.summitracing.com/egnsearch.asp?Ntt=leakdown+tester&N=0+303763&D=303763&Ntk=KeywordSearch

I don't have an air compressor :(

Well, I've never used it before and I have to look at my instruction as to how much air is needed, maybe I could use a portable air tank. It would probably only do a couple cylnders at a time.

I would really hope you don't need it. Anytime you want it let me know. As long as you have air.



I hope it would be a waste of time too, but with the oil consumption issue I've been having it would give peace of mind to rule out bad rings.

Rings can hold compression but still pump oil. So a leakdown test is not going to verify that the oil control ring is working, or that the second ring is scraping oil properly.

I hope it would be a waste of time too, but with the oil consumption issue I've been having it would give peace of mind to rule out bad rings.

Damn, you too?? When it rans it pours. :(

yeah, check my thread in the engine forum...