[DeTomaso] Crank Pulley Needed????

[Charles Engles]

Dear Steve,

              I just measured a stock crank pulley with a metric ruler and find that the rearward sheave (I didn't know that.  I am so dumb that I thought they were grooves.  Sigh.) measures 12 mm and the front sheave measures 10-11 mm.

             Over all these years and all those engines, I thought that they were exactly the same.....

                        Warmest regards, Chuck Engles

-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at server.detomasolist.com] On Behalf Of Steve Liebenow
Sent: Wednesday, March 30, 2022 6:03 PM
To: Detomaso List
Subject: [DeTomaso] Crank Pulley Needed????

Hey all, 

In doing my firewall bump reduction install, I've run into a situation that may or may not be a manufacturing issue......
My crank pulley has two 12mm width sheaves on it.       I am thinking that I should have one 12 and one 11mm wide sheave!     But I don't have easy access to my other car to confirm or deny......
Does anyone have a crank pulley on an engine stand, or in a box of spare parts handy that could confirm or deny my problem!???
Manufacturer of the kit says that he's only seen this scenario once over time......    Highly likely that someone wasn't paying attention and boner'd the machining of the second groove on a batch of these?????
If you can confirm or deny what I have is proper, I'd appreciate it!
Thank-you!!!
Steve