stvski80085 98 #1 Posted February 23 (edited) So I bounced around the models and it list 7434 in picture below which is the tension bar I have. The pulley that is on it and works is a hair over 3 inches and the lip is not as deep. If I put the 7434 on it's maxed out but even worse is the lip rubs the belt and I think will tear it up. It just sounds bad to even spin by hand. The 7437 is about 3.75 inches. Number 4 is what i'm talking about. It is listed as 7434 in a few models but it's not what mine has. Any idea's? Edited February 23 by stvski80085 Share this post Link to post Share on other sites
daveoman1966 3,772 #2 Posted February 23 This MAY be the idler pulley you need. It spins true with no drag or wobble. It is a whisker over 3" dia, 1" wide, and the bore is 3/8" with a 1/16" offset center. This SHOULD suit your needs. $10 + $5 to ship it... Paypal works for me. 2 Share this post Link to post Share on other sites
peter lena 9,023 #3 Posted February 23 @stvski80085 done a number of mower decks , major issue is LUBRICATION FAILURE , proof ? note , INCREMENTAL BELT BOUNCE , that showing you related bearing hang up points . all my pulleys are RE GREASED , and any rotational point is improved . of course what I am telling you is not BY THE BOOK , also did over every related , drive belt spindle point , the moving / rotational difference , is rediculousely easy / smooth in use. also added a flat idler on back side of unsupported deck belt , smooth . quiet . have backed away from , replys , realise it upsets , purests , then again what can you do on a repeditive problem ? pete Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,195 #4 Posted February 23 12 hours ago, stvski80085 said: So I bounced around the models and it list 7434 in picture below which is the tension bar I have. The pulley that is on it and works is a hair over 3 inches and the lip is not as deep. If I put the 7434 on it's maxed out but even worse is the lip rubs the belt and I think will tear it up. It just sounds bad to even spin by hand. The 7437 is about 3.75 inches. Number 4 is what i'm talking about. It is listed as 7434 in a few models but it's not what mine has. Any idea's? Do you not have the part numbers mixed up? 7434 is the tension bar at the beginning and a pulley at the end. What model of deck is this for? Share this post Link to post Share on other sites
stvski80085 98 #5 Posted February 23 (edited) It was from 1978 but has the tensioner bar above but deck looks like the 75-something. I have it at home. The pulley mounted to tensioner is what I’m talking about. Looks like number 4 from pic above. 36 inch side discharge. I think it has parts from a change over mid year. Edited February 23 by stvski80085 Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,195 #6 Posted February 23 Here are all the 36" side discharge models. Click on the fuzzy link to see some notes. Mid-year 1977 tension bar was added. When I get time will add the idler pulleys to each. Mower DNA 1971 model 5-0710 - Idler tension bar mounted with two 2-bolt guides - Deck idler pulley 7434 - Mower replaced by 1971 model 5-0711 - Deck idler pulley 7434 1972 model 5-0720 - Deck idler pulley 7434 1973-1974 model 5-0721 - Deck idler pulley 7434 1975 model 5-0722 - Deck idler pulley 7434 1976 model 65-36MS01 - Deck idler pulley 7434 1977 model 75-36MS01 - Last deck to use idler tension bar mounted with two 2-bolt guides - Deck idler pulley 7434 1977 model 75-36MS02 - First deck to use bushings in center of idler tension bar - Deck idler pulley 7434 1978 model 85-36MS01 - Bushings in center of idler tension bar - Deck idler pulley 7434 1979 model 95-36MS00 - These decks use blades with 5/8" x 3/4" center hole unless the spindle has been upgraded - Deck idler pulley 7434 ----------------------------------------------------------------------------------------------------------------------------------------------------------- 1979 model 95-36MS01 - These decks use blades with a 3/4" center hole - Deck idler pulley 7434 - Deck replaced by 1980-1982 model 05-36MS01 - Last year for bearings with 3/4" ID - Deck idler pulley 7434 1983-1984 model 05-36MS02 - First year for bearings with 17mm ID unless older spindles were updated. These decks use blades with a 3/4" center hole - Deck idler pulley 7434 Note - 17mm is .669" Note - 7434 idler pully has been replaced by 112426 which first shows up for the 1986 rear discharge 36" decks. Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,195 #7 Posted February 23 Look at the DNA again. I suspect it is a bad superseded number. Share this post Link to post Share on other sites
stvski80085 98 #8 Posted February 24 Daveoman above has the correct one. The 7434 would work but the deeper lip is rubbing the belt funny. I may try to file it first and see if I can get the belt to ride correctly. If not the one dave has above is the same size I have on mine. Dave, Does it feel like it has a bearing in it. Mine works but is noisy so I was wanting to replace it. Share this post Link to post Share on other sites
daveoman1966 3,772 #9 Posted February 24 44 minutes ago, stvski80085 said: Daveoman above has the correct one. The 7434 would work but the deeper lip is rubbing the belt funny. I may try to file it first and see if I can get the belt to ride correctly. If not the one dave has above is the same size I have on mine. Dave, Does it feel like it has a bearing in it. Mine works but is noisy so I was wanting to replace it. This is NOT a new idler pulley. The bearing is good though...no wobble and no noise when spinning it. Share this post Link to post Share on other sites
