Q My car is a 2003 Fiat Punto 1.2 Active, which has done 60,000 miles. I have had three rocker cover gaskets fitted over the past two years and still cannot stop it from leaking oil. Is it possible that pressure is building up inside the engine? If so, have you any idea what the cause could be? The vehicle runs normally.
A There are a few steps to fitting the Fiat Punto cam cover which should ensure that it remains leak-free. The first is to check that the mating surfaces on the cylinderhead and cam cover are perfectly clean; this is probably the longest part of the job, but is worth the extra effort to ensure a leak-free future. Pay particular attention to thecorners where the camshaft end caps meet the cylinderhead, then degrease all the surfaces. While the cam cover is removed, you should also ensure
that it is not distorted.
The next step is to glue the new gasket into the cam cover using silicone adhesive, ensuring the gasket follows the contour of the cam cover and fits neatly into the grooves, especially where it fits above the camshaft end caps.
Before placing the cam cover into position, place a small dab of the silicone at the corners of both camshaft end caps. Once the cam cover is in position, check the gasket has remained in position and evenly nip down the bolts.
Autosessive note: You can buy a range of silicone adhesives online at Autosessive.com. Have a look at our Sealants & Gasketing section.
Have A Problem Vehicle? Get In Touch…
If you have a problem vehicle, Car Mechanics has the answer in the shape of technical editor Steve Rothwell. Email your questions firstname.lastname@example.org.