hi all,
i drive a B310..

when i start the engine in the morning and it is cold (i take off the auto-choke already),
for 2 minutes or more, it is shaking very hard, and sound like boxer engine.. the sound, hard to drive.

when the engine is warmed up,
it is smooth
but even in idel, or when in low speed,
i can feel vibration (feels like vibration from your mobile phone, but more rough).
i can feel it from the steering, gear knob, even the car not moving.

when travelling around 110kph (speed limit on some road), the vibration is quite large.

yesterday i travelling at 140kph, the whole car vibrate as if it wants to fall apart,
and with a lot of sounds...


anyone knows what cause the problem?
is it somewhere in the clutch assembly?
or engine mounting rubber?


thanks in advnace

hmmm...if its vibrating violently when you aren't moving, then its probably your your engine mounts or possibly everything may just have vibrated loose, you may need a tune up up along with some new bushes.
good luck
ty

you may find that the two vibs are caused by different things. the high speed one is most likely something like yourwheel balance or shocks as for your high frequency vibe im unsure, but if it is a high frequency vibe just think what would spin at about 2000 rpm.

your engine mounts have probly come loose and your engine or box is touching a part of the car e.g the tunnel and is sending vibration through the whole car. if its not the engine mounts i definetly think something might be loose.get it checked

Yeah check the mounts
when I had the a14 in my ute both the engine mounts broke at the same time.
the engine twisted it self and jammed its self in tight on the extractors.
I took it to my old mechanic he serviced it charged me a heap and didnt even notice the broken engine mounts (that is why he is my old mechanic)
I knew the mounts were broken and sorced some from the wreckers just incase. wacked em in when I got home Vibration stopped.
also check the uni joints in your tail shaft
although it sounds more like the engine mounts

oic
so mostly is the engine mount...
i think i will buy the thing and go to the workshop to fix

cause in my country ...
the mechs charge are quite expensive,..

Engine mount, gearbox mount, Tailshaft(uni's) and wheel balance could all be possible sources. But since it makes strange noises whilst stationary id lean towards the mounts.

Any when its cold and sounding like a boxer does it sound like its missing on a cylinder? Test compression, spark pluggs, leads etc. That could fix that problem.

ya... totally sound like missing one or 2 cylinders when cold..
i will start with simple thing, plug and lead, and leave the compression test to the pro.




anyway, phisically look at the engine mount can giv us any clue it is in bad condition or not?

check yur pulleys, more importantly the harmonic balancer. I am unsure about dattos but in some older cars the rubber ring can perish causing the outer inertia ring to sit offset causing vibration. Just watch your pullies while engine is running, check it at different speeds as well. Also this is highly unlikely but double chect that you havent snapped a radiator fan blade off or water pump bearing collapsed. As for looking at the mounts, you might see that the rubber is cracked and perished but one way to check is to leaver the engine either a big bar or large screwdriver, or just jack the engine up and see if the mounts seperate, same applies with the gearbox.

i had a similar problem. my a12 in my 1000 ute blew a head gasket cause it would leak water into the cylinder and when it spat it all out it would run better. i also had a vibration but that went away when i fixed it.

BUT...
for a really bad story that u should not follow read on.

i got of my ass 1 day to change a head gasket on me a12 which had been over heating in 40 degree heat (c) for a couple of months. when i ripped of the head i found tha gasket was stuffed (alot stuffed) so i got out me wet n dry cleaned the face of the head with it and the block, replaced the head gasket $13 and inlet gasket $5 and used the original rocker gasket wacked the head back on without adjusting the rocker arms or torquing the head (just used my ratchet) and i swear its never run better. ps: dont try this at home ITS DODGY