Should there be a bolt through the 3b cam idler pulley

[220bhp]

Just changed the water pump on my 3b s2 and noticed there is no bolt through the centre of the cam idler pulley ,should there be one

[Mikes2]

yes, there should be. Surprised you've not got an oil leak as it goes into an oil way

[220bhp]

yes, there should be. Surprised you've not got an oil leak as it goes into an oil way

Thanks for that . This is quite worrying as the guy doing the work said he did not take one out . So it’s ether been running without one or it has snap of in some way . What size is this bolt and does it have a part number.

[Mikes2]

It's M6x62, N010 368 1. Just reading your first post. We are talking about the pulley in the oil pump ?

[220bhp]

I will get a picture up tomorrow

[220bhp]

These pics where taken this morning showing the idler pulley in question . The bolt is missing and, I have since found out that it is 6mm bolt that fits through the 8mm hole . Is the pulley pressed onto the oil pump . As mentioned above the bolt go’s into an oil way . Is the bolt there to simply hold the pulley in place or is it to help clamp the oil pump .

[Mikes2]

yes there should be a bolt - M6 as above. The pulley is a press fit into the oil pump. The bolt is just a locator for the pulley but it also fills the oil way

[220bhp]

yes there should be a bolt - M6 as above. The pulley is a press fit into the oil pump. The bolt is just a locator for the pulley but it also fills the oil way

Thanks you so much