Accessing injectors to check for leaks

[VITO115MANX]

Hi all
Just looking for advise please
I've just bought another Vito (115 Sport ) and it has a ticking sound , just wondering can you just remove the plastic cover and lift it off as simple as that or will I require seals etc , started undoing the right hand Allen screw and seen oil on thread so didn't go any further incase bolts go further or something .

Any help much appreciated.

 

[VITO115MANX]

Hi all
Just looking for advise please
I've just bought another Vito (115 Sport ) and it has a ticking sound , just wondering can you just remove the plastic cover and lift it off as simple as that or will I require seals etc , started undoing the right hand Allen screw and seen oil on thread so didn't go any further incase bolts go further or something .

Any help much appreciated.

I mean the plastic engine cover , sorry for the original question being vague.

 

[StMarks]

On my 109 the plastic cover over the top of the injectors unbolted by removing the bolts from around it's perimeter.
My leaking injector seat was immediately evident when I did, as the carbonised fuel that had been leaking was caked over the inside of the cover.
The engine ran fine with the cover removed, no leaks.

 

[VITO115MANX]

Thanks ST MARKS
Did you torque the cover back on once you were done ? , I think mine may be leaking then as first cover screw I loosened had what I thought was engine oil all over thread but if it only holds cover on it could of been carbonised fuel.

 

[StMarks]

I tightened those bolts down evenly, but not to a specific torque iirc. As that plastic cover serves no mechanical purpose I didn't even bother to look up their specified torque. I just tightened them up by feel ( "StM tight-enough" )
Under that cover is a soft rubber moulding, I assume to dampen noise from the engine. You may find that a leaking injector seal will have caused some damage to that moulding (sadly I did).
Lastly there is a bracket on the underside of the front bulkhead that I had to remove (bolts hidden underneath the sound insulation wadding) to allow enough clearance to lift the cover up & over the injectors. Even then it was quite awkward.
Good luck.!

 

[VITO115MANX]

Sorted thanks

So i ended up taking the Vito to a local garage who specialize in Mercs etc and had them look at the ticking noise , injectors were all good and it was a just normal sound to them (they visually and soap tested them all ) , the biggest bonus was they would only take £10 .