Cam tensioner pulley fracture problem

November 28th, 2024
Cam tensioner pulley fracture problem Fig. A

Cam tensioner pulley fracture problem

November 28th, 2024
Cam tensioner pulley fracture problem Fig. B

Cam tensioner pulley fracture problem

November 28th, 2024
Cam tensioner pulley fracture problem Fig. C
Share:

The adjustment cam on the tensioner pulley can fracture during the tensioning process. Continental has provided these instructions for timing belt kits CT1168K1/ K2/ WP1/ WP2/ WP7/ WP9/ K6PRO/ WP8PRO that are for VW, Audi, Seat, Skoda EA288 1.4–2.0 TDi common rail engines.


The cause of this fracture is that the fastening nut is over tightened during assembly. As a result, the nut turns together with the eccentric cam during tensioning, subjecting it to an even greater load. This produces too much resistance, causing the adjustment cam to crack (Fig. A).

The solution is to only tighten the nut by hand prior to tensioning. Use an appropriate tool to hold the nut securely (Fig. B & C) so that it doesn’t turn together with the cam. You now tighten the tensioner pulley by turning it clockwise until the pointer aligns with the marker notch (Fig. C). You can then finish tightening the nut.

To read more of this technical article or download the entire article click here.

There are lots more Tech Tips to view, and they are all searchable, on TechTips.ie.
PREVIOUS ARTICLE
Jaguar rebrand – Madness or masterstroke?
NEXT ARTICLE
OSRAM provides training for automotive apprentices

More from GARAGE WORKSHOP

Changes to UK motor tax explained

Changes to UK motor tax explained

icon Changes have been implemented...
Drivers have ADAS trust issues

Drivers have ADAS trust issues

icon New research from future mobil...
Brembo to show new mobility braking solutions at Automechanika
 

Brembo to show new mobility braking solutions at Automechanika  

icon Brembo, a global leader in hig...
Think Clutch, Think Blue Print

Think Clutch, Think Blue Print

icon Independent automotive afterma...
The Automechanika Birmingham Programme goes Live

The Automechanika Birmingham Programme goes Live

icon The official event programme f...
The EV charging revolution is coming – At least in China

The EV charging revolution is coming – At least in China

icon One of the big hurdles stoppin...

More from AUTOBIZ