Using a leak down tester to find valve, rings or gasket problems

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Britannica Restorations Ltd
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[@bazasulli4975]

Recently I became a 4x4 enthusiasts but I have been watching you for a long time but I always still find it fascinating when you are working with these ancient and questionable beasts. I tell you something the IMI don't teach you much about Vehicles that age and it's a shame really.

[@BritannicaRestorations]

Thanks!
Mike

[@davejules4103]

Very useful video Mike. Like you say the compression test will tell you that there is a problem but not what it is.

[@nickboylen6873]

Very good and simple, but not all head gasket failures lead to bubbles in the coolant, coolant or oil loss - 300Tdis are notorious for gasket failure between no.4 cylinder and the aft of the engine, well away from coolant and oil galleries. Hopefully, your pressure test would result in a traceable hiss.

[@BritannicaRestorations]

Indeed it would

[@garthrichert5256]

Thank you for leak down test information. Such good advice.

[@BritannicaRestorations]

Thanks Garth!
Mike

[@craig_chaznibond452]

I'm watching a video at work on an engine I don't have. Now I have to explain why to my bemused colleagues.

[@nbell4166]

You my have different engine but principles of diagnosing fault it's applying to your engine to.

[@mjallenuk]

So if you were buying a half decent leak down tester and you don't have access to a snap on/mac van?
Bloody good idea with the glove. I once saw a kit which fed smoke into the airline which I thought was nifty until the fella told me how much it had cost him. To be fair he worked on aircraft so I guess you'd need something like that.

[@greebo7857]

"Bloody good idea with the glove."
Condoms work too, and take less time to fill.......

[@BritannicaRestorations]

Mine all have holes in after being unused in my wallet for years....

[@mjallenuk]

@@greebo7857 I always had another plan for those ... although I suppose being ten years out of date your plan is probably better!

[@mjallenuk]

@@BritannicaRestorations The bats do need feeding from time to time mate.

[@harveysmith100]

I think I was going in the right direction last time. Waiting for the next video now

[@bobmoore8321]

Hi Mike I bought one of those Chinese leak down testers a few a few months ago just cause it was cheap and looked useful can't think why we didn't have one donkey years ago such a simple piece of kit always had the standard compression tester now I can look forward to mine breaking like that

[@BritannicaRestorations]

Yes they are good but low pressure -I broke it out of the box thinking it was a 100 psi one!
Change the end gauge for a 100 psi one
I stripped the block and it has the orifice drilled in, but to be honest, the gauges are useless -all you need is to get air into the cylinders and listen or look for leaks

[@bobmoore8321]

@@BritannicaRestorations yes now Ive seen you use it looks like you should be able to hear the problem

[@BritannicaRestorations]

Those cheap stethoscopes are another excellent tool for diagnostics

[@axelcordes]

and... head gaskets ... now that's a cool thing, never would have come to that idea! Maybe the pro do know all that but I'm eating up all that great ideas ! (if this is English..) Cheers Axel

[@BritannicaRestorations]

Yes - such a simple test can show a whole lot of faults!

[@garthrichert5256]

Is one inlet tube on the manifold obstructed ? Maybe a dumb suggestion, but once I discovered debris lewft by someone.

[@BritannicaRestorations]

See latest video
Mike