90 work truck Posted March 31, 2017 Share Posted March 31, 2017 I've been having cooling system issues lately, the last thing to go was the water pump(leaking from weep hole), before replacing it everything was quiet, Did some looking and and thought it was the idler pulley was where it was coming from, replaced it with one from NAPA (gates # 38042) I've adjusted the belt from fairly loose to snare drum tight, and everywhere in between. The old pulley/bearing had a dust cover/washer looking piece(approx. 1.75" Diam) around the bushing the new gates didn't, gates came with the pulley with bearing installed and the reducer. The curvature of the convex side of pulley won't allow use of the old one. I can get it to quiet down for a few seconds by spraying a penetrating lube.where bolt goes into bracket & bolt head, it will also quiet down by spraying water on belt, till it dries starts right up again. Does anyone know if there is to be a washer between pulley and mounting bracket that I might of lost? Also it seems odd to me that the bolt is threaded its whole length and not just where it goes into bracket. Hoping someone has a solution before I pull the cord on the cannon and go buy a belt Link to comment Share on other sites More sharing options...
Whiz Posted March 31, 2017 Share Posted March 31, 2017 I am not expert. But from my experience and things I have learned here, if you spray water on the belt and it quiets then it is the belt. When I changed my housing Coolant got on that belt and it chirp after that. I replaced the belt and tighten good and it went away until recently. I now get a light chirp at times when I first start but it goes away. Link to comment Share on other sites More sharing options...
90 work truck Posted March 31, 2017 Author Share Posted March 31, 2017 Thanks I had read that too, I took a 3m abrasive pad and cleaned off the belt(no cracks, LOOKS in good condition) I don't mind buying a belt Just trying to avoid throwing more parts at it Hence the wondering about the bolt being threaded, and if theres suppose to be a washer between pulley and bracket because it also quiets down when I spray lubricant there? Link to comment Share on other sites More sharing options...
DirtyComanche Posted March 31, 2017 Share Posted March 31, 2017 Picture of the new pulley setup vs old? Link to comment Share on other sites More sharing options...
90 work truck Posted March 31, 2017 Author Share Posted March 31, 2017 This is the old one New ones on the truck but doesn't have a large enough flat area to accept the larger washer that surrounds the reducing bushing Link to comment Share on other sites More sharing options...
Jtrux Posted April 1, 2017 Share Posted April 1, 2017 Off subject, but how much lift are you running? Looks sharp. Link to comment Share on other sites More sharing options...
90 work truck Posted April 1, 2017 Author Share Posted April 1, 2017 Thanks jtrux got all the parts from Dirk at dpg off road (Old Man emu front coils, spacers, shocks, JKS track bar, upper & lower control arms, sway bar disconnects) Rear leaf pack is sold by Rusty's Canadian MFg. It's advertised as 4'" getting closer to 3 tires are grabber at2 215 around 27" next time I need tires (these only have approx. 10,000 miles on them) Might go a little larger 30"ish just for a little more clearance (snow, don't go off road much) want to keep my turbines don"t want to re--gear Back on topic I think I might of taken care of the chirping, ( I hope for good) put a little dawn dishwashing soap in spray bottle with hot water (thanks to posts read here) sprayed down belt then carefully held 3m abrasive pad on running belt, repeated 2 more times. Quiet now, time will tell Link to comment Share on other sites More sharing options...
90 work truck Posted April 2, 2017 Author Share Posted April 2, 2017 An update. . made it two blocks and it (chirping) started up again Drove it to Napa got a new belt (premium one $42. !!) I've been bit more than once chincing Must of contaminated old one with coolant when I changed water pump (spraying lubricant on Idler pulley bolt, while troubleshooting, probably didn't help) Long story short Quiet as a lady of the night in church. Link to comment Share on other sites More sharing options...
Jtrux Posted April 3, 2017 Share Posted April 3, 2017 It's usually the obvious thing. Glad it quieted up. I have a noise that started tonight on mine coming from the front drivers side. I suspect it's the unit bearing. Ironically, it was the first time my girlfriend went for a ride with me in it and it starts with that crap. Link to comment Share on other sites More sharing options...
CRM1988 Posted April 3, 2017 Share Posted April 3, 2017 An update. . made it two blocks and it (chirping) started up again Drove it to Napa got a new belt (premium one $42. !!) I've been bit more than once chincing Must of contaminated old one with coolant when I changed water pump (spraying lubricant on Idler pulley bolt, while troubleshooting, probably didn't help) Long story short Quiet as a lady of the night in church. So the new $42 belt took care of the noise? Link to comment Share on other sites More sharing options...
90 work truck Posted April 3, 2017 Author Share Posted April 3, 2017 Yes Link to comment Share on other sites More sharing options...
CRM1988 Posted April 3, 2017 Share Posted April 3, 2017 Do you remember the part# or the name of the belt it shows about 8 different ones on there website. Link to comment Share on other sites More sharing options...
90 work truck Posted April 3, 2017 Author Share Posted April 3, 2017 Yes, I saved the old one as a spare the sleeve from new one is Gates(sold by Napa) #061025 Link to comment Share on other sites More sharing options...
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