dozza77rm

Hay, Sorry if this has already been covered, I'm new to forums.... i have recently changed the timing belt on my 2007 Focus, according to the Haynes manual i must renew the crankshaft pulley bolt, question is, is this necessary? the bolt seems in good condition and i can't get hold of a new one where i live without ordering it, would ideally like to have the job finished ASAP as i work away (leaving in 2 days) and don't want to wait a month to finish the job. was thinking adding a little to the torque and being very generous with the Loctite!!
Any advice would be appreciated!!

big_wasa

Unless it's a torque to yield it will be fine. What's the Haynes tightening sequence ? A set torque or a torque then a further angle ?
I 're use them on zetec's ect. They often state to replace if they had a thread sealant on them. As this won't be affective any more. Ie zetec flywheel bolts.

Often torque to yeild can be 're used by checking the amount of stretch.

Most important is to 're tighten fully to the proper torque as most engines are not keyed any more and the timing is only held by the clamping force. Ie Duratec petrol but that's got a chain not a belt.

dozza77rm

Swearwolf

they are stretched when fitted - always use a new one!! should come in the cambelt kit

studabear

If it's a 1600 petrol you definitely must change the bolt as the pulley on the crankshaft is free floating when the bolt is removed. So if the bolt is questionable in anyway the timing could slip and the valves shall bend.