My garage:
My garage:
CHOOSE YOUR CAR
Vehicle selection according to KBA No.
CHOOSE YOUR CAR
Vehicle selection according to KBA No.
My account
Wish list
CHOOSE YOUR CAR
CHOOSE YOUR CAR
all categories
for Porsche
product comparison
Fitting bolts are special bolts, which usually have a hexagonal head and are made of steel. They can be used in a wide range of applications. In this case the Febi fitting bolt 100726 for VAG no. 038103714A is used to adjust the valve clearance at the rocker shaft of the vehicle.
There are different temperatures in the motor depending on the environment and the running time. In order for the valves to close completely at any operating temperature, it is important that there is always a little play between the valves and rocker arms. The reason for this is that both elements are made of different materials and expand differently when exposed to heat. However, it is very important that the valve clearance is not too large and not too small. If the clearance at the rocker arm shaft is too large, the valve will open too late, possibly not far enough and close earlier than intended. A typical symptom of valve clearance that is too large is rattling noises in the valves that remind one a little of a sewing machine. Due to the too large clearance to the rocker arm, too little mixture flows into the combustion chamber and thus power is lost.
If the valve clearance is too small, the materials cannot expand and deform far enough when exposed to heat. As a result, the valve no longer closes properly and part of the combustion pressure is lost, which has a direct effect on performance. Also, due to the insufficient clearance between the valve and the rocker arm, the heat cannot escape enough to burn the materials and cause engine damage.
The connections between valves and rocker arms are the fitting bolts. The valve clearance is adjusted on them. How large the distance must be varies from vehicle to vehicle. Your trusted workshop can give you more detailed information here. If you know the value, you can tighten the screws yourself if necessary with the correct tool.
The high loads also place high demands on the screws used in the rocker arm shaft. They must have the following properties:
Therefore it is advisable to attach importance to quality here. The Febi fitting screw 100726 for the VAG No. 038103714A has original equipment quality. It is just as good as the original VW fitting screw, but much cheaper available from us. You can get the Febi fitting screw 100726 for VAG no. 038103714A from us as set with 8 pieces. If you have any further questions, please contact our Customer service.
W+S Autoteile GmbH
!No collection / no exchange on site!
Schwarzer Weg 10
D-32423 Minden
Item No.:
MSRP
We use cookies to personalize content, provide social media features and analyze our traffic. We share information with our social media, advertising and analytics partners. Some cookies are essential, others are used for analysis and advertising (personalized and non-personalized). You can give or deny your consent to non-essential cookies or mobile ad identifiers in the cookie settings. Cookies are only set with your consent, which you can adjust at any time.
Marketing
Marketing cookies are used by third parties or publishers to show personalized advertisements that are appealing to the individual user. They do this by tracking visitors across websites.
InformationEssential
Essential cookies are responsible for basic functions and the proper functioning of the website. The shop cannot be fully operated without these cookies.
InformationGoogle Tracking
Google tracking cookies are used to show personalized and non-personalized advertising that is appealing to individual users. They do this by tracking visitors across websites. For further information on Google’s data processing: https://business.safety.google/privacy/
Information