Had a previous post about a too loose cutter belt, causing the belt to "flap" excessively. Have minimized this a fair bit with a smaller belt and resulting tighter tension , but it still is flapping more than it should. I couldn't test with a genuine MTD belt as advised by the forum as they were out of stock and it would be a week+ wait to order in.
First time really using/testing this mower as bought it with a destroyed transmission belt pulley which i replaced.
The person who i bought it off had run over some polypipe that had tangled in the blades enough to cause the main drive tensioner spring to also snap.
I checked the blades are in balance,,, and have spun the the cutter pulleys by hand when still in the deck when the belt was off. -- they appear to be in alignment . and even when running the engine using the cutter and blades engaged also appear to rotate evenly , but of course the shafts may be just be out of whack a tiny bit, just enough to cause this flapping.?
I also ran the engine and cutter deck with the blades removed to triple check the blades were not the problem, and the amount of flapping stayed the same, so the blades can at least be ignored.
Was thinking of taking off the spindles off the deck and checking for alignment / bent bolts etc.?. however, wondering if there are any tips other than sitting them on a table and spinning them by hand and watching for any wobbles etc to track down what the issue is, especially as if it IS a out of whack spindle, it would appears be a very minor amount and quite hard to detect.( well it has been so far!)..
Spindles here in Australia are around $150 each!, so swapping in a new one just as a test would be a bit pricey unfortunately ..
Edited by humpy, February 03, 2018 - 07:06 AM.