Valve clearance adjustment
My daughter’s 2007 Ford Fiesta 1.3 16v petrol with the Duratec engine is due for a valve clearance adjustment. As you are no doubt aware, with 16 valves this can be a lengthy process, especially if every shim needs to be changed and new ones ordered from a Ford agent.
Being a retired automotive technician, I have always maintained my family’s vehicles. For my Fiesta 1.8 diesel, I use the Ford tool 21-106 to depress the bucket when both valves are closed, and shim pliers 21-106 to remove each shim, prior to changing them. As my engine is a single overhead cam diesel, I don’t think that my existing tools will work on my daughter’s engine. I believe that Ford technicians use the tool 21-218 to depress each tappet on the Duratec engine in order to remove its shim.
Of course, I could remove both camshafts after measuring the valve clearances, but this would be an even lengthier procedure compared to simply depressing each bucket.
In your professional capacity, have you found a way of doing the job without removing the camshafts and without the Ford special tool? Mike Mills Ford tool numbers have been updated and now start with a three-digit number, thus the 21-218 tool you refer to has been updated to 303-563. This is simply a fancy pair of tweezers with a bend at the end to allow removal of the shim.
On the 16v Duratec engine there is no method of extracting the valve followers without first removing the camshafts. For this reason, we normally incorporate the tappet shim adjustment with a cambelt change. As you know, the clearances need to be carefully logged before releasing the camshafts, then you have to take the actual dimensions of the installed shim to calculate the new values needed. This is a lengthy procedure, but we find that by combining the two jobs – cambelt and clearances – it does make more economical use of the time.
The Ford tool number 303-563 for removal and refitting of tappet shims.