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#16
02-22-2010, 05:10 AM
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380sl
now my buddy tells me there is no compression on 5,6,7,8, dont know about the other cylinders, anyone got a good 380sl engine RUNNING?
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#18
02-27-2010, 03:09 AM
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380sl
found four intake valve stuck open 5678. ordered new ball studs previous owner never changed oil!
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#19
02-27-2010, 09:08 AM
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ouch
__________________
Ron 2015 Porsche Cayman - Elizabeth 2011 Porsche Cayman - Bond,James Bond Sadly MERCEDESLESS - ALways LOOKING ! 99 E320 THE Queen Mary - SOLD 62 220b - Dolly - Finally my Finny! Sadly SOLD 72 450SL, Pearl-SOLD  16 F350 6.7 Diesel -THOR 19 BMW X5 - Heaven on Wheels 14 38HP John Deere 3038E Tractor -Mean Green 84 300SD, Benjamin -SOLD 71 220 - W115-Libby ( my first love) -SOLD 73 280 - W114 "Organspende" Rest in Peace 81 380 SL - Rest in Peace
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#20
02-28-2010, 11:56 AM
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It sounds to me like the timing chain has jumped and the pistons have hit the valves and bent them. That's why they are sticking open.
Farting around with the ball studs isn't going to help. You need to pull the head and have it rebuilt along with some new valves. If you look you will probably find that either the upper slide rail broke and jammed a piece between the chain and the cam gear causing it to jump, or that the tensioner is shot, or that the chain is stretched, or all of the above. The fix for this is to repair the head, new chain, new upper slide rails, new tensioner and new connectors on the oil tube. If the oil was never changed, you should also look for worn cam lobes and rockers. This is going to get expensive, so you might want to consider a used motor.
__________________
Chuck Taylor Falls Church VA '66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe
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#21
03-20-2010, 01:59 AM
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1984 380sl
its junk has no compression on5thru8 cyl. what is the purpose of the ball studs
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#22
03-20-2010, 07:41 AM
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They screw into the head. One end of the rocker arm rests on the ball stud, the other on the valve stem. They have a hydraulic element in them that pushes up and holds the rocker arm against the cam lobe. Sort of like a hydraulic lifter in a pushrod engine.
__________________
Chuck Taylor Falls Church VA '66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe
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