Noisey tappets - 4200GT
| 29 November 2010
On some 4200Gt's the engine tappets can be noisy, there are various solutions but here is a few that are worth considering:
- Fill the engine with 10W60, fully synthetic engine oil
- Check the timing chain variators are working correctly, this can be done with the correct test equipment
- Fit new filters to the cylinder heads, behind the timing chain adjuster
- Fit new non return valve to the oil gallery, this does generally leak oil past over time
- Make sure the engine has a good quality 5W40 or 10W60 fully synthetic.
