Combustion leak tester

[Minikong]

hi any 1 here know where to buy this combustion leak tester, or any work shop you know got this?

i see this youtube and it seems to be very user firendly and useful

[Yeobh]

Very few mech know how to carry out such test. They think that it's time consuming.

Edited November 10, 2010 by Yeobh

[Minikong]

i see form the internet seems that it is quite easy with the kit

did u see the youtube?

[ER-3682]

Engines now seldom have 'Head gasket failure',if you maintained the coolant & engine oil level,if you really need this tester,try AllTools at Lavander street.

[Crazecow]

Another way is to do a compresison test.

[Minikong]

Engines now seldom have 'Head gasket failure',if you maintained the coolant & engine oil level,if you really need this tester,try AllTools at Lavander street.

bobain my overheated b4 lol haha

[Yeobh]

Frankly compression test sometime cannot pinpoint minute leak in cylinder head leak. The next best method besides combustion leak tester ,is to use cylinder leak down tester.

Edited November 10, 2010 by Yeobh

[Good-Carbuyer]

hi any 1 here know where to buy this combustion leak tester, or any work shop you know got this?

i see this youtube and it seems to be very user firendly and useful

Hmm... I was told sales is about giving excuses to collect money called payment.

That is among gimmicks you can buy with money.

A Vehicle Mechanic uses a compression gauge to test for leakage from each engine cyclinder. He can identify which cylinder leaks

That gimmick at best helps to detect gases in the coolant circuit with/without compression leakage. He can not identify which cylinder leaks

Edited November 10, 2010 by Good-Carbuyer

[Yeobh]

No need as I have been demonstrating how to us this product back in 19977 to many shop mech and owners. Ask them about leak down tester and many mech will give you a stupid look. Only now shops are just starting to buy and use compression testers.

[Seaweed]

yo equipment specialist....wonder if you could help me...my rear left keep having quaking sound when go over hump...right is ok...i suspect is suspension...but the AD tell me not suspension but some part which the suspension arm kind of things which is bolted to car body producing the sound...they say due to metal and metal friction....i don't believe them....i ask them if can test efficiency of suspension...they say the machine is like S-H-I-T...only 100% failure then will say fail...else all pass....got any advise ??

[Yeobh]

It's very difficult to do a vritual diagnosis without any feeling and hearing. What the shop is trying to tell you is probably yr independent rear suspension trailing arm bushing has wear out.

There is probably one or two inspection grade suspension tester in Singapore but I am out of the market for too long to adv. Such testers are usually from europe because countries like Holland , Italy etc does conduct suspension test during the mandatory annual car road worthiness inspection.

What the test do is actually to measure the tyres contact time with the machine vibrating plateform over a preset cycle time. A faulty shock absorber will tend to bounces too much so in actual fact have very little road contact time.

Hope this helps

[Icekitten]

How much does the leakdown testing set cost?

Do help to confirm my understanding here.. A compression test allows us to know if we are losing compression in any cylinder is that right? But a leakdown test allows us to know where we are losing the compression from?

 

If I want to know whether I have a problem with worn piston rings, will a compression test be able to give some idea or a leakdown test is needed?

 

You seem well-versed in engines and their diagnosis. Rare thing these days.

[Yeobh]

Compression tester display the cylinder volume being compressed and it is used to check worn out rings or valves. To determine the leak is due to wear out rings or valves ,normally a teaspoon of engine oil is introduced into the test cylinder and the test is again conducted.If there is still leak that means the valve is bad as the oil will seal the gap between the ring and cylinder wall.

This is a static test, the US mech love to do a running compression test which is more accurate but time consuming.

For very minute leak in cylinder head gasket, cylinder wall crack , leak in oil or water gallery etc leak down test is one of the best diagnostic tool.

This tool uses compressed air which is being introduced into the cylinder ( generally the test is conducted with piston at TDC ). and then shut off, the compressed air is then monitored for pressure drop.

If there is a cylinder head gasket leak, you can detect air bubbles coming out of the radiator neck opening. If there is wear out rings and cylinder wall you can feel air coming out of the oil dip stick etc etc.

Hope this helps

[Good-Carbuyer]

No need as I have been demonstrating how to us this product back in 19977 to many shop mech and owners. Ask them about leak down tester and many mech will give you a stupid look. Only now shops are just starting to buy and use compression testers.

I believe they can make more money with this gimmick (the motorists pay more for gimmicks). Engine not in order needs to be repaired with/without the gimmicks?

[Yeobh]

As a auto tool and equipment professional with over more than 30+ yrs experience , I hate to sell snake oil and will not even do it if I am out of business.

Maybe you should try to read more on auto diagnosis methods just to be fair to yourself and the forum before making yr comments.

Edited November 16, 2010 by Yeobh

[Minikong]

As a auto tool and equipment professional with over more than 30+ yrs experience , I hate to sell snake oil and will not even do it if I am out of business.

Maybe you should try to read more on auto diagnosis methods just to be fair to yourself and the forum before making yr comments.

 

 

hi yeo do u open a ws? or do u do test services?

if you are, i am intreasted to sent my car for a check

[Yeobh]

Sorry, never have the opportunity to operate a shop. Since yr 2000 I have put on reverse gear slowing down my activities ( aka retirement career ).

[Icekitten]

So a compression test would be enough to test for worn rings or valves.

 

Leakdown comes in if say...compression test done, shows supposedly no loss in compression but engine is losing or 'consuming' a significant amount of engine oil...then a leakdown test would help in showing where else the leak is...?