2003-04 Mach 1 Registry Owners Club - View Single Post

Phil · 01-29-2010, 10:29 AM

I don't have a part number, but the smooth steel & 6 rib idler/tensioner pullies are the same as the factory 6 rib alternator pulley. Meaning the I.D of the bearings are the same. You could get an alternator underdrive pulley as long as there is clearance with base of tensioner.

I wrote to Liten who makes the Ford factory pullies about a larger diameter 6 rib pulley. Our idler pullies, including the factory alternator pulley are 3".. We want about a 3.250" - 3.375", pending pulley clearance to base of tensioner.

http://www.litens.com/tensioncontrol2.cfm

Here is Goodyear pulleys. 49016 looks like a pulley that may work, it's a 3.5" dia 6 groove idler pulley at 26.3mm wide

http://www.goodyearep.com/uploadedFi...ifications.pdf

I machined the crank sensor boss off and tapped it for a pipe tap.. This is why the factory 6 rib pulley gives enough belt clearance.

01-29-2010, 10:29 AM	#270
Phil Nitrous Junkie Join Date: Jul 2003 Location: Ohio Posts: 7,299	Re: Custom Intake Carbureted & Nitrous Setup I don't have a part number, but the smooth steel & 6 rib idler/tensioner pullies are the same as the factory 6 rib alternator pulley. Meaning the I.D of the bearings are the same. You could get an alternator underdrive pulley as long as there is clearance with base of tensioner. I wrote to Liten who makes the Ford factory pullies about a larger diameter 6 rib pulley. Our idler pullies, including the factory alternator pulley are 3".. We want about a 3.250" - 3.375", pending pulley clearance to base of tensioner. http://www.litens.com/tensioncontrol2.cfm Here is Goodyear pulleys. 49016 looks like a pulley that may work, it's a 3.5" dia 6 groove idler pulley at 26.3mm wide http://www.goodyearep.com/uploadedFi...ifications.pdf I machined the crank sensor boss off and tapped it for a pipe tap.. This is why the factory 6 rib pulley gives enough belt clearance. __________________ Phil PRB Machining, LLC http://www.prbmachining-absdeleteman...com/index.html Performance mods by Jeff Chambers, the owner/tuner of CRT Performance in Norwalk, Ohio http://www.crt-performance.com/ Last edited by Phil; 01-29-2010 at 03:16 PM.