|
|
|
#1
|
|||
|
|||
617.912 compression results, any input ?
So i did a compression test on my 1978 300d. Cold engine.
Results on psi 260 240 240 240 235 Done thru the injectors. I would like to know if this is good or bad. Before it i did change the transmission filter, the person who did it before marked the filter. As 8/1993 lol, so it wasn't change for 21 years.... Idk how many miles the car has because it resets every 99,999 miles..... I guess i can check the valves next. Anyone can help with their cold engine results ? |
#2
|
|||
|
|||
Those are on the low end of required compression. Time to begin thinking about a rebuild or engine change.
__________________
“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.” ― Brian P. Cleary, You Oughta Know By Now |
#3
|
|||
|
|||
Not horrible, but not exactly great either. If valve adjustment hasn't been done on time you may see improvement from that. Depending on the results of a compression test after a valve adjustment, this engine may be anywhere from "healthy" to "run it until it won't start and rebuild/replace".
__________________
Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar. 83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles 08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles 88 Jaguar XJS V12 94,xxx miles. Work in progress. |
#4
|
||||
|
||||
If it hasn't been used much recently I'd change the engine oil and drive it for a bit. A re-test might give you some more comforting numbers...
...but if it is working just service it and use it - don't look for trouble 'cos if you do it usually finds you!
__________________
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! |
#5
|
|||
|
|||
If you go in to adjust the valves, also check the cam timing. That can also lower all the readings.
Paul M
__________________
84 500 SEL (307,xxx miles) |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|