Henry964

Last night I noticed a small spark flashing in the top-middle of the upper distributor cap....does it mean the cap is leaking/ broken?
The caps were both changed recently (march) so I didnīt expect this problem now

springer3

You are seeing high-voltage insulation breakdown. The caps should be OK if they are new. What about the wires?

dfinnegan

I've read here that some of the new caps are coming through with a protective coating on them that can inhibit continuity.

Henry964

Thanks springer3 and dfinnegan!!!

regarding wires I just bought a new set of Beru wires ...are this wires included in the Beru set??

darth

I suspect once the wires are replaced the spark will disappear.This is a tell tale sign that the wires and/or possibly the spark plugs need replacing. the coating is there for a purpose: http://www.freepatentsonline.com/4652705.html

Bill
90C2

Henry964

Thanks darth!!!!

Do you know if this specific wire is part of the Beru set

dfinnegan

The coil wires should be part of the set.

darth

Where did you buy the set from? It should be listed. There's no guarantee it will be included but when I purchased my set from a non dealer it was included. You can replace the spark plugs first being the least expensive and easiest to replace and see if you see any improvment. If not, then replace the wires but if they're the original they likely need replacing even if they visually look OK. Over time the rubber/silicone insulation develops micro cracks which allow voltage to escape hence the sparks you see and even the center conductor starts to detererate and resistance increases beyond the spec. The center conductor is not a perfect conductor in that there is a certain resistance per foot built into the conductor so that your radio isn't affected.

Bill
90C2

Henry964

I bought the set from Vertex, it is the Beru set for 964

dutchcrunch

clean the exterior cap lugs

darth

It appears in the photo.

Henry964

Thanks dutchcrunch and darth!!!! your help is much appreciated