Hydro Engagement lever rattle

[pfrederi 20,948]

Picked up a GT-1848 last year for cheap at auction as she didn't run...Turns out those B&S engines actually require fuel mixture to run.  After going over the flue system she worked great.  The hydro engagement lever shook around and rattled a lot.  Part of problem was drive belt was missing a couple chunks...but even with a new belt lots more rattle and noise than my 418A. My older Sustrands also rattle and I have replaced the wave washers with not much improvement. (Use a small bungee cord on one to quiet it down)  So why is the 418 quiet but not the GT same system right???

 

Wrong...WH made a change in the later hydros and added an anti rattle spring instead of using wave washers.

 Looked at the spring on my 418 and went to my box of springs found one that was actually for some WH snow blower that looked close.  Shortened and bent the end loops put it on the GT and voila quieter.  As the other Sunstrands come in for maintenance going to fix them up as well.

 

First diagram GT 2nd 418 note #29 WH part 107938

First pic 418   2nd GT

Edited 2 hours ago by pfrederi

[squonk 47,494]

I've welded up the worn pivot points to stop rattles as well.

[peter lena 9,979]

@pfrederi   don't have one of those but  sure can relate ! horses are known for glairing linkage / lever  set ups , based on penny pinching , and lack of FUNCTIONAL DETAILING . of course have to throw in a  sealed idler belt pulley ! typically belts show you the way ? , frayed , cracked from incremental sealed bearing  lubrication ?  starts  belt bounce , as bearing hangs up / stops . my experience , is  touching  each stage of  hand off , verify  / enhance , penetrant gets the rust flowing , then aerosol  red grease , added washers , to enhance action , love  those hook end , light to medium springs . done similar on , pto lever set up , and  plow  swing quadrant  , lever set up , amazing  transformation  , functional ease . done a lot of mods to my  horses , can't even see them , but you sure can feel / sense them!  related belt wear , is telling you what's happening , would love to do one of those , pete