timing belt tensioner question

Unread post by **aerodynamica** » 07 Mar 2012, 13:45

Next q. Is the plunger on the timing belt tensioner pressurised by the engine oil? I was checking the tb condition and note that after a longer rest the belt tension feels slacker. Do I need to adjust it?

HDI · Unread post by **HDI** » 07 Mar 2012, 15:07

Answer, no !
The reason for the belt having less tension when cold than hot is down to thermal expansion of the engine.

Unread post by **aerodynamica** » 07 Mar 2012, 18:51

Hmm, I felt it had too much slack (up to 10mm) but when tighter, seemed nice and tight

citronut · Unread post by **citronut** » 08 Mar 2012, 08:48

the rule of thumb is whilst tensioning a cam belt you should be able to just turn the longest run of belt (usualy from the front of the cam sproket to front of crank sproket) 90 degrees,

so if you do this whilst the engine is cold it should be fine,

regards malcolm

French Car Forum

timing belt tensioner question

timing belt tensioner question

Re: timing belt tensioner question

Re: timing belt tensioner question

Re: timing belt tensioner question