Foretravel Owners' Forum

Foretravel Motorhome Forums => Foretravel Tech Talk => Topic started by: MarkC on September 05, 2019, 09:15:47 pm

Title: Belt Change Question
Post by: MarkC on September 05, 2019, 09:15:47 pm
Today I was changing my belts and hoses on my 2001 8.3 Cummins. All was going well, hoses were done and I was putting on the belts when my "helpful" neighbor dropped by.  Long story short, we got into a discussion and the belts and he was adamant that the main serpentine belt needed to be synced together between the two main pulleys ( upper and lower).  I questioned him saying that if you lost a belt on the highway and pulled over to changed it, there was no way the two main pulleys ( upper and lower) would be in sync with each other.

I tried to explain to him that I felt he was referring to a timing belt on a car that dives the cam.

Feel I was correct, but he got me wondering.  Am I correct ?

Thanks to all.

Title: Re: Belt Change Question
Post by: TGordon on September 05, 2019, 09:19:22 pm
I say; he is mistaken.
Title: Re: Belt Change Question
Post by: MarkC on September 05, 2019, 09:25:49 pm
Thank you, I thing he was thinking about a timing belt. I told him that I could spin the pulleys (if possible) as much as I wanted, put the belt on and be fine. Just as if I threw a belt on the highway while running.

Just needed someone with more knowledge that me to restore my confidence :)
Title: Re: Belt Change Question
Post by: prfleming on September 05, 2019, 09:31:09 pm
Serpentine belts have no teeth to maintain sync.
Title: Re: Belt Change Question
Post by: MarkC on September 05, 2019, 09:33:48 pm
Thanks Peter, I feel better, was sitting here happy to have new belts and hoses, even though it ran fine, I started second guessing myself.

Never listen to the "helpful" neighbor !!!
Title: Re: Belt Change Question
Post by: Old phart phred on September 05, 2019, 09:34:50 pm
TGordan said it nicely and in a PC manner. ^.^d can't argue with idiots. Belts also slip :o. Maybe his mechanic charges extra for a belt sync. ;)
Title: Re: Belt Change Question
Post by: Dave Larsen on September 05, 2019, 10:54:06 pm
TGordan said it nicely and in a PC manner. ^.^d can't argue with idiots. Belts also slip :o. Maybe his mechanic charges extra for a belt sync. ;)
The muffler belt can be a real bugger to time, especially on an RV. 
Title: Re: Belt Change Question
Post by: wolfe10 on September 06, 2019, 02:41:38 am
Cogged belts, like timing belts ARE timed.

Serpentine belts like on any diesel are NOT.