Grit Valve
2000 4.6 Vouge
Well that's at least a major worry out the way,engine mounts to go .island4x4 iv used famous four lots they are nice chaps don't forget heat shield above front pipe under drivers seat they rattle too
Having still not cured ilthe vibration on my manual i thought id follow up and see if i can spot common symptoms. Findings as below;
1. Occurs more frequently when warm outside
2. Occurs after a long motorway run
3. Occurs when starting the engine when warm regardless of outside air temp-vibration happens straight away and wont go away until after a run.
4. Doesnt occur at all when the tank is full and is most severe with 20 or litres onboard.
Naturally thought fuel and possible fip cavitation. Starting when cold shows no air in the fuel line between filter and pump but switched off when warm shows air returning from fip back to filter. I suspect when starting this air is forced and trapped back in the fip creating cavitation. Bit like the first shower of the day while the pump works the air out or like an outside tap. No fuel leaks from the fip and mine looks like its not the original as its fairly clean and shiny. Ill change the fuel filter but i suspect on mine there maybe air returning between the block and fip causing the vibration....most likely injector line unions Any thoughts?
Having still not cured ilthe vibration on my manual i thought id follow up and see if i can spot common symptoms. Findings as below;
1. Occurs more frequently when warm outside
2. Occurs after a long motorway run
3. Occurs when starting the engine when warm regardless of outside air temp-vibration happens straight away and wont go away until after a run.
4. Doesnt occur at all when the tank is full and is most severe with 20 or litres onboard.
Naturally thought fuel and possible fip cavitation. Starting when cold shows no air in the fuel line between filter and pump but switched off when warm shows air returning from fip back to filter. I suspect when starting this air is forced and trapped back in the fip creating cavitation. Bit like the first shower of the day while the pump works the air out or like an outside tap. No fuel leaks from the fip and mine looks like its not the original as its fairly clean and shiny. Ill change the fuel filter but i suspect on mine there maybe air returning between the block and fip causing the vibration....most likely injector line unions Any thoughts?
Maybe ours 'vibrations' are different? Mine looks and feels like the engine is going to self destruct, sounds awful, shakes the entire car and sounds like its on the verge of stalling. However blipping the throttle will cause it to go away. It never comes on suddenly but builds from a small misfire sound to feeling like its going to jump out if the bay.
'84 300sd idle shake - PeachParts Mercedes ShopForum
Good thread here that describes my syptoms but on mercs. Don't know what components are common here but looks like idle fuel quantities through knackered injectors? Or rack damper bolt whatever that is and if it has one?
They can't be too clogged as I run redex (500ml) through every other tank full. I've put nearly 60 litres of the stuff through the car since i've had it for over a year.
Idle shows low on the gauge - 240is at idle. But peaks at 3500rpm so I suspect the gauge is at fault? I can do 30mph in 4th showing 800rpm...that's incorrect no?
When lightly tapping the throttle at idle if you do it too many times in quick succession it dips so far below the idle it stalls.
just as a matter of coarse,what did you have to move/ take of when you done your mounts if anythink at all for the benifit of others.Hi Guys.
Done the Engine Mounts today. It is better but not the cause. Theya are just doing a better job.
Defender 300tdi. I think you are right. I have now come to the end of what it could be I think and will live with what I have.
Many thanks all.