Melting your spur gear.
05-16-2008, 02:20 PM
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Melting your spur gear.
Today I am breaking in the new 32 I have it idleing for the 1st 1/2 tank.
It appears somehow my clutch bell bolt came loose,I havent taken it apart yet ,but Iguess this also allowed the shoes to come loose heating up the bell.
Melted the spur gear,and it was just idleing.
There is proof it can heat up and melt.
User error i reckon,just wanted to post that.
CS
It appears somehow my clutch bell bolt came loose,I havent taken it apart yet ,but Iguess this also allowed the shoes to come loose heating up the bell.
Melted the spur gear,and it was just idleing.
There is proof it can heat up and melt.
User error i reckon,just wanted to post that.
CS
05-16-2008, 05:23 PM
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RE: Melting your spur gear.
Bearings? Idle is where they take a beating, with engine rpm the bell should be locked to the crank. I agree, a hot bell makes short work of that spur. I ruined more spurs with a broken engine mount plate than anything else. I was feeling kind of slow when I finally figured that one out. BB
05-18-2008, 09:21 PM
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RE: Melting your spur gear.
if you go with a steel spur, make sure that you get a HD bell
personal i like to stick with plastic spurs. Cheap to replace, i have gone threw TWO in 4 years of running with changing to a diff tooth count twice. Go with plastic spur and a vented CB.
personal i like to stick with plastic spurs. Cheap to replace, i have gone threw TWO in 4 years of running with changing to a diff tooth count twice. Go with plastic spur and a vented CB.
05-18-2008, 09:31 PM
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RE: Melting your spur gear.
You should have set the truck on a stand so that it could turn the wheels at idle. That way the bell would not heat up. You will toast those shoes by doing that.
05-18-2008, 09:59 PM
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RE: Melting your spur gear.
I like to make the initial start up with no clutch shoes installed, just the pilot nut. Everybody has their own flight path, but with no friction to fight, it can run rich and above an idle and not create friction heat. Some engines do not need it, but if you run into a super tight one, it is a great deal. BB
05-19-2008, 10:56 AM
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RE: Melting your spur gear.
Come to find out on my breakin with new aluminum shoes,new flywheel,and brass bushing on my new 32.
I didnt get the flywheel nut all the way tight..this caused the flywheel to spin..this caused the brass bushing to burn up,AND it caused the clutch shoe springs to burn through themselves because the shaft was spinning ,and the shoes werent.
Took me 2 sets of clutch shoes and springs to figure out the flywheel wasnt tight enough.
Take 3 now I should be good to go.
I have steel spurs,but just wanted to try the plastic .
BTW as soon as the spur melted I check the CB temp ,and it was 273* F
CARNAGE!
lol
CS
I didnt get the flywheel nut all the way tight..this caused the flywheel to spin..this caused the brass bushing to burn up,AND it caused the clutch shoe springs to burn through themselves because the shaft was spinning ,and the shoes werent.
Took me 2 sets of clutch shoes and springs to figure out the flywheel wasnt tight enough.
Take 3 now I should be good to go.
I have steel spurs,but just wanted to try the plastic .
BTW as soon as the spur melted I check the CB temp ,and it was 273* F
CARNAGE!
lol
CS
