My 454 Rebuild

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BNielsen

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I'm sure if he creeps around on the Internet he'll probably find this thread or at least a couple pictures posted on the forum. I know if I Google "K2500" I'll get pics of my truck on occasion.
 

termite

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Ok I broke down and ordered a 1time use otc leak down tester. Should be here Friday.
How did the OTC tester hold up for you? I’m on the fence about getting a Lang, OTC, or the slightly cheaper H.F. one.
 

Schurkey

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How did the OTC tester hold up for you? I’m on the fence about getting a Lang, OTC, or the slightly cheaper H.F. one.
Do yourself a favor. Buy a cylinder leakdown tester that meets FAA guidelines, along with Teledyne/Continental requirements for a "Master Orifice".

There are no legal requirements, or "industry standards" for automotive leakdown testers. There are FAA regulations for aircraft leakdown testers, though. So that gives you some measure of standarization.

The "master orifice" is a way to check the leakdown tester. It provides a standard amount of leakage to compare the cylinders against. The only problem is that the Teledyne/Continental "Master Orifice" is a bit generous on leakage for performance automotive use. I use about 2/3 the allowed leakage for my purposes.


Tell them you want the 14mm cylinder adapter instead of the 18mm it normally ships with. They have other adapters you might want--for motorcycles, or more-modern cars, or "deep reach" autos.
 

termite

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Do yourself a favor. Buy a cylinder leakdown tester that meets FAA guidelines, along with Teledyne/Continental requirements for a "Master Orifice".

There are no legal requirements, or "industry standards" for automotive leakdown testers. There are FAA regulations for aircraft leakdown testers, though. So that gives you some measure of standarization.

The "master orifice" is a way to check the leakdown tester. It provides a standard amount of leakage to compare the cylinders against. The only problem is that the Teledyne/Continental "Master Orifice" is a bit generous on leakage for performance automotive use. I use about 2/3 the allowed leakage for my purposes.


Tell them you want the 14mm cylinder adapter instead of the 18mm it normally ships with. They have other adapters you might want--for motorcycles, or more-modern cars, or "deep reach" autos.
For the difference in price, seems worth the extra cost for the higher quality and standardization. Thanks Schurkey.

I only had a need to use it once so far, but it did work good.
Good deal then. I'm always afraid of this type of tool being a 'disposable' purchase that lasts 1, 2, or 3 uses and dies.
 

BeXtreme

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Do yourself a favor. Buy a cylinder leakdown tester that meets FAA guidelines, along with Teledyne/Continental requirements for a "Master Orifice".

There are no legal requirements, or "industry standards" for automotive leakdown testers. There are FAA regulations for aircraft leakdown testers, though. So that gives you some measure of standarization.

The "master orifice" is a way to check the leakdown tester. It provides a standard amount of leakage to compare the cylinders against. The only problem is that the Teledyne/Continental "Master Orifice" is a bit generous on leakage for performance automotive use. I use about 2/3 the allowed leakage for my purposes.


Tell them you want the 14mm cylinder adapter instead of the 18mm it normally ships with. They have other adapters you might want--for motorcycles, or more-modern cars, or "deep reach" autos.
This is definitely the way to go. I just borrow one of our mechanics(i work in aviation) leak down tester for the night if I need one and bring it back in the same condition I got it along with a 6-er of his favorite brew. I so rarely need one that it just hasn't made sense to me to buy one yet(I usually just do a compression test for diagnostic)
 
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