Yes,Joe. Another 68 pulley question

[Jeff P.]

Looking at the AIM ,there are two illustrations for a L79 "HT" no air, no pb, power steering belt configuration. One with its own belt and pulley on the crank. Other is 1 belt for the 3rd pulley on the crank and third pulley on the water pump around power steering pulley. Which would be correct and the pulley numbers needed. Thank you as always.

[Edward B.]

Re: Yes,Joe. Another 68 pulley question

Jeff, you need to look at RPO N40, Sheet A6 for the correct belt routing (the top right illustration in your attachment), and pulley part numbers. The top middle illustration is for the base (327/300) engine.

Ed

[Joe L.]

Re: Yes,Joe. Another 68 pulley question

Looking at the AIM ,there are two illustrations for a L79 "HT" no air, no pb, power steering belt configuration. One with its own belt and pulley on the crank. Other is 1 belt for the 3rd pulley on the crank and third pulley on the water pump around power steering pulley. Which would be correct and the pulley numbers needed. Thank you as always.

Jeff------


It's not clear to me if you have power steering, or not. In any event, the pulley configuration for your application is quite simple. The pulleys are as follows:

waterpump front (AIR pump driver)------GM #3883235

waterpump rear (2 groove)----------------GM #3848904

balancer pulley (2 groove)-----------------GM #3858533

Whether, or not you have power steering the above applies. If you have power steering, then the grooves on the balancer and waterpump pulleys that have a captive belt (i.e. between just the 2 pulleys) are used for the power steering driver and the captive belt eliminated. The p/s pump pulley would be GM #3834720.

[Jeff P.]

Re: Yes,Joe. Another 68 pulley question

Thank you Ed and Joe . All questions fully answered.