M104 engine cover query

jeremy156

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Of the six bolts securing the cover over the spark plugs on my M104.922 engine, only three bite, the remainder spin loose.

I'm curious as to whether this has an effect on the ability for the ignition coils to remain firmly in place...?

I started the car yesterday to a misfire and wonderful smell of unburnt fuel. I took the cover off, re-seated the plugs and all seemed well thereafter. I don't know whether it helped, or whether it was just coincidence... but it does make me wonder whether I should get this fixed.

 

DREAMER NO2

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You can get a thread fix kit. They are like springs made to suit the depth of the hole and you fix it in to the hole thats striped out with a tool that comes in the kit you then use a smaller screw to thread in to the insert you fitted . I have used fibre glass before on striped threads .Just put the f/g in the striped hole push down with your putty knife then pop in the bolt and let it set .You just unscrew it out after. It will leave a thread in the hole . The first idea is the best .
 

robparker

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Very common on that engine, I don't know why
 
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jeremy156

jeremy156

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Very common on that engine, I don't know why

Am I right to assume it's functionally necessary, holds the coils in place? ... or simply enough that at least one or two bolts are in ok to keep dust out?
 

ajlsl600

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