leak down tester

dose aney know ho makes a good leak down tester for a blown app

 

I make my own, plus I make a poppet setting tool. It has three gages 0 to 15 lbs. 0 to 100 lbs. and 0 to 200 lbs. with an6 fittings on all three and one an8 to an6 adapter. you can build your own too, i bought one and it was not accurate, if you want info google it, or I can make one for you. mine are not cheap, made of brass, so it wont rot.

 

Anyone used the Lowe unit ? its ugly but they claim it is made of top quality parts.

Richard Gavle

 

I have this one and it seems to give me consistant readings. I got it from Good Vibrations. It was less than $100 when I got it.

 

An advertiser right here, Machine Design Service makes some. check out their ad.
frank

 

By the way you can't use your leak down tester to set poppets. unless it's one of the crappy ones that don't have a .040 jet in it.

 

Why not? please explain.

 

Good Leak down testers have an orifice in them, ( .040 jet is what i call it), a poppet setter is a straight shot of air to the poppet, ( no jet ) Just a regulator and a gauge, use a gauge twice as much as the presser you need it to pop, or close to it. for instance you want to set your hi speed to 60 lbs use a 100 lb' gauge. you won't get a true reading from a leak tester,another thing you should check your poppet's after/ before every race, the springs go bad just like your valve springs do. Oh S#!t i gave away another secret.

 

thank you very much for all the info (i am a new guy hear)

 

buy a kinsler leak down..it is the ...buy far the easyst to use it is a one guage tool set it at 100 psi and read it...as in if you leak at 75 that is what the guage reads..i've used almost every type and I find this fool proof and very fast..Dave
www.myspace.com/daveloweswr

 

Thats a flawed answer, what if you have a compressor that don't hold more than 100 lbs. for very long then how would you know if the gauge is reading what it says or what the compressor is putting out?? you should have a compressor that holds 130 lbs. for as long as it takes you to set the valve with a one gauge deal the two gauge deal tells you Right away if the presser drops below 100 lbs. because the first gauge drops with the compressor and the second gauge, but you already knew that didn't you?

 

leak testers

Good leakage testers only read % of air and do not need 100# of air our sun works off of 80# and still will read 100%. Mike

 

leak testers

Read what I said they only read 100% of the air put in.

 

leak testers

Thats also why they read in percentage and not#s

 

Here's the real deal right out of the PSI blower book that Norm Drazzy wrote::::::::::::::::::::: page 20, Check valves: Enderle, Hilborn, Crower, and Waterman check valves are all acceptable. The important points are.
-Never set them with a leak down tester
They must have enough travel and flow area when calibrated.
they must seal when seated.
Disassemble and inspect them regularly.
-brass or stainless steel are mandatory to avoid the corrosion caused by methanol. Never use a aluminum bodied check valve. Even if the housing is anodized, the poppet will quickly wear through the anodized seat, expouse bare aluminum and rapidly corrode the seat surface. You guys with the screw blowers should read the book, there's a lot of stuff in there. you guys that don't have a screw blower should BUY the book, you can benefit from it too.