|
|
|
#1
|
||||
|
||||
New tick or knock… Any ideas?
Hello Benz fans
I have had a ticking lifter that I intend to replace soon but I have a new noise. It sounds like a lifter but louder. It only seems to knock when I am on the throttle. At idle or coasting it goes away. I changed the oil to 10-40 over the weekend and although I don’t see any milky white, the coolant seems to be just slightly lower. The oil on the dipstick is bubbly. I drove 2 miles and it was very bubbly and after 12 miles it was less bubbly. I am not looking forward to pulling the heads. Anyone have any ideas?
__________________
Steve 1985 Mercedes 500SL Euro (Gray market) 1995 BMW 520i Euro (Gray market) 1992 BMW 525it Wagon 1994 Honda Del Sol Si |
#2
|
||||
|
||||
When coolant and oil mix it's rarer than rare that the heads don't have to come off. Maybe start with a leakdown test to see where you stand.
Sixto 95 S420 87 300SDL |
#3
|
||||
|
||||
Yeah, I know if I have coolant in the oil, a head gasket (or 2) will be needed. But what would cause the noise? I suppose I have to start by pulling the valve covers.
__________________
Steve 1985 Mercedes 500SL Euro (Gray market) 1995 BMW 520i Euro (Gray market) 1992 BMW 525it Wagon 1994 Honda Del Sol Si |
#4
|
||||
|
||||
If I had to guess I'll say that the reduction in oil pressure because of the contamination is causing the lash adjusters to not pump up sufficiently.
Sixto 95 S420 87 300SDL |
#5
|
||||
|
||||
Bubbly oil on the dipstick is sometimes caused by "frothing". This occurs if TOO MUCH oil is poured into the engine..ie..during an oil change, which you just did.
Check your oil level on a flat surface after the car has been at rest overnight. I wouldn't push the blown-head-gasket-panic-button just yet. My 2 cents.
__________________
'91 300-SEL |
#6
|
||||
|
||||
I checked the oil level (4 times in 2 days) and it is just over the center between the marks. After sitting a few hours there are no bubbles and the level is normal. It does not appear to be over full. I wonder why it would foam if not over-filled. I also can't confirm the coolant is getting into the oil. I will drive it a little more and see if the coolant goes down or there is milk in the oil. I am panicked and afraid to drive it.
__________________
Steve 1985 Mercedes 500SL Euro (Gray market) 1995 BMW 520i Euro (Gray market) 1992 BMW 525it Wagon 1994 Honda Del Sol Si |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Tick, tick, tick sound when I hit the brake. | newkid | Tech Help | 0 | 10-30-2004 09:27 PM |
Tick, tick tick noise | newkid | Tech Help | 2 | 10-26-2004 01:29 AM |
tick, tick, tick, tick (you get the idea) from speedometer | WANT '71 280SEL | Diesel Discussion | 5 | 03-17-2004 12:32 AM |
tick tick tick tick tick | mb96 | Tech Help | 3 | 11-17-2002 08:24 AM |
tick tick tick help w/ e500 | akydakyx | Tech Help | 10 | 05-15-2002 07:14 PM |