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Engine Specific Info and Questions => IDI Engine => Topic started by: Grunttorque on February 07, 2009, 12:33:16 pm

Title: AAZ Serp belt wobble
Post by: Grunttorque on February 07, 2009, 12:33:16 pm

Hey guys.. I just fired my samurai up to do some more testing and noticed the serp belt is kind of flopping around a little. But as soon you give it some throttle it stops. Is that normal? its a brand new goodyear gator belt (and the crank pulley is turning straight and even).

Title: Re: AAZ Serp belt wobble
Post by: jtanguay on February 07, 2009, 12:57:25 pm

Quote from: "Grunttorque"

Hey guys.. I just fired my samurai up to do some more testing and noticed the serp belt is kind of flopping around a little. But as soon you give it some throttle it stops. Is that normal? its a brand new goodyear gator belt (and the crank pulley is turning straight and even).

did you replace the tensioner? and the roller?

Title: AAZ Serp belt wobble
Post by: Vincent Waldon on February 07, 2009, 01:21:11 pm

A small bit of flapping at idle is reasonably normal, at least on AAZs I've seen... assuming that everything is straight and round and not wobbling.

Having said that... if you have a solid alternator pulley you'll have a lot more flap, even at idle, than with the clutched pulley.  That flap is at least partly about the alternator and harmonic balancer fighting each other.

Title: AAZ Serp belt wobble
Post by: Grunttorque on February 07, 2009, 01:59:26 pm

thanks for the replies.. I replaced the roller because the engine didnt have one when I got it. The tensioner seems strong still. Glad to hear there is some flap I'll probably carry a spare belt though just in case

Title: AAZ Serp belt wobble
Post by: the caveman on February 07, 2009, 03:14:06 pm

Just so you know , one of the reasons why AAZ crank pulleys wear is because of that big load/unloading of the belt and therefore pulleys.