Wingnut247
Active Member
- Messages
- 422
Right good news! Was an easy fix
! But could of ended in total destruction! :-(! School boy error, but thought I would post incase anyone has a similar issue or to stop other making the same mistake!
When I built the engine I painted the cam pulleys! Once engine got hot paint shrinks! Meaning where the pulley bolts were torqued tight, allowed the torque to be reduced thus, couple with the added vibration of engine with balance shafts removed allowed bolts to become loose and cause pullys to move slightly from side to side on key way making it sound like a tractor and scaring the living daylight out of me!!! I was extremely lucky that I found this before bolts/ pullys span allowing cam belt to slip!
Will post video so people no wat this sounds like!!
When I built the engine I painted the cam pulleys! Once engine got hot paint shrinks! Meaning where the pulley bolts were torqued tight, allowed the torque to be reduced thus, couple with the added vibration of engine with balance shafts removed allowed bolts to become loose and cause pullys to move slightly from side to side on key way making it sound like a tractor and scaring the living daylight out of me!!! I was extremely lucky that I found this before bolts/ pullys span allowing cam belt to slip!
Will post video so people no wat this sounds like!!


