Underdrive Pulley Questions

[Porsche9]

I've had the one from Pedro for 2 years now and it works as advertised with NO downsides in day to day use, including the 115 degree Phoenix days.

[mr.borrie]

A good machines pulley should be fine. I sell underdrives for old Volvo's @ Nordic Car Parts and never had any complaints

I don't know much about the M96 engine yet but usually you don't need to shave anything to install a underdrive pully.

[PR61]

Originally Posted by Porsche9

I've had the one from Pedro for 2 years now and it works as advertised with NO downsides in day to day use, including the 115 degree Phoenix days.

Can those of you that installed the underdrive pulley from Pedro, explain/show how you held the pulley to re tighten the bolt? The pictures of his pulley I've seen don't show any holes to use a pulley holding tool.
Thanks!