Were the valves in spec when the test was done?

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http://farm8.staticflickr.com/7271/7...144c3fc1dc.jpg

Do any of you ever do leak-down tests? From what I've read it gives a better impression of engine health...

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

I have the 'Sealey' leak-down equipment to do leak-down testing, but no compressor to run it!

You're right, actualy its easy with the L.D. to check exactly Where compression is lost--if any....

Failing that a standard compression check will tell most info and confirm a good engine...

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Alastair AKA H.C.II South Wales, U.K. based member

W123, 1985 300TD Wagon, 256K,
-Most recent M.B. purchase, Cost-a-plenty, Gulps BioDiesel extravagantly, and I love it like an old dog.

W114, 1975 280E Custard Yellow,
-Great above decks needs chassis welding--Really will do it this year....

Yeah, a compression test will let you if there's a problem, a leak down is designed to isolate the top, valves, or the bottom, rings, as the problem area.

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83 SD

84 CD

Those numbers look good. Is there really any reason to go on with other test? In line with: "If it isn't broke - DON'T FIX IT"

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92 300D 2.5L OM602 OBK #59

heck, with those numbers, I doubt there was even reason to do that test!
I bet that puppy is SMOOOOOOTH!

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

Tested it cold.
Used a Harbor Freight Diesel Compression Kit.
Tested through the injector ports.
Adjusted the valves before the compression test.

It is running a lot smoother since the valve adjustment. I'm replacing the engine mounts next- mine look like they're chewed pretty good- will replace the trans mount at the same time.

I think it's had a vacuum leak since I've owned it. Gonna fix that next. That should put the cherry on top- there have been acceleration issues that I think that will fix.

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Wordmanjay
Tribetown, Ohio

[QUOTE=wordmanjay;2553169]The engine was cold.
Please tell me about how this affects the test.[/QU[/HTML]


Hi
On my 1985 300td, operating temp compression tested at almost 100lbs. higher than cold (40 degrees F.) compression. My case might be extreme - but it might be interesting for you to retest at full operating temp to see what you find.
Joseph