LOCATING ODD NOISE
Posted: May 28th, 2018, 8:38 am
my 28 AA runs great EXCEPT it has developed a noise when under a load. seems if it was piston slap i would hear it at idle if i rev it up it is very quiet, smooth.
under a load mainly 4th gear a "railing" noise. hard to short out a cylinder going down the road. i had posted recently that my four speed is made from 3 different transmissions. could it be that these gears are starting to sing. they have been working together for about 400 miles.
Perhaps a bearing?? main or rod?? I am going to be installing a warford soon. this will be the ideal time to explore transmission condition and drop oil pan if i have to. My question is: does anyone have a place to start with ascertaining the "noise" based on scenario. any ideas appreciated. no rod noise at idle when revved up? thank you in advance for your ideas and knowledge. noise does seem to quiet if timing is retarded to mid point. could timing be too advanced and firing too late and making noise??? kevin
under a load mainly 4th gear a "railing" noise. hard to short out a cylinder going down the road. i had posted recently that my four speed is made from 3 different transmissions. could it be that these gears are starting to sing. they have been working together for about 400 miles.
Perhaps a bearing?? main or rod?? I am going to be installing a warford soon. this will be the ideal time to explore transmission condition and drop oil pan if i have to. My question is: does anyone have a place to start with ascertaining the "noise" based on scenario. any ideas appreciated. no rod noise at idle when revved up? thank you in advance for your ideas and knowledge. noise does seem to quiet if timing is retarded to mid point. could timing be too advanced and firing too late and making noise??? kevin