BAC Forum

General Boards => Technical Support => Topic started by: Gary Miller on March 18, 2019, 07:15:25 PM

Title: Serpentine belt replacement on c15 Cat
Post by: Gary Miller on March 18, 2019, 07:15:25 PM
Looking to change my 2 serpentine belts on my ‘08 Marquis. Lookslike a 1/2” ratchet on each tensioner will do the trick Are there any issues in doing this?
Title: Re: Serpentine belt replacement on c15 Cat
Post by: Gerald Farris on March 18, 2019, 08:16:21 PM
Gary,
Changing your serpentine belt is a very simple task. There are only two things to remember. One is if you do not have a belt diagram, draw a sketch of the belt routing before removing the belt to be sure that you route the new belt properly. The other thing is to be sure that you get the right belt, and since your old belts are still in use, you can just take them to the parts store to match them with a new belt. You can not go to a parts store and tell them that you need a belt for a C 15 Cat engine because the accessories were specified by Monaco and not Cat, so it is easier to match the belts unless your owner's manual list the belt numbers, but the owner's manuals on these coaches are often wrong, so match the belts.

Gerald
Title: Re: Serpentine belt replacement on c15 Cat
Post by: Mike Shumack on March 18, 2019, 08:17:46 PM
Tip: Snap a photo of the belt routing prior to removal to help with installation. There's not much complication to the routing, but ...

On my C13, it's a tight fit between the tensioner and the coach body support (i.e. the cross support shown in photo below).

Maybe your C15 has a little more working room. I found that a long handle flexible head ratchet works nicely. A standard 1/2" drive ratchet is a little short and doesn't give much leverage (that tensioner pulley spring is stiff).

Good luck.



Title: Re: Serpentine belt replacement on c15 Cat
Post by: Bill Lampkin on March 18, 2019, 10:07:44 PM
Wow, Mike! Do you serve breakfast on that C-13 block? Clean. Looks like you've replaced your overflow tank with a new plastic tank or?
Nice work.
As for the serpentine belt, see if Adept Ape has done a you tube video on replacement, the guy has a wealth of knowledge (as does Gerald) and a picture is worth a thousand words. 
Title: Re: Serpentine belt replacement on c15 Cat
Post by: Fred Cook on March 19, 2019, 03:10:57 PM
 I used a permanent marker to draw my serpentine belt routing on the frame next to the motor. Now all I need to do is look at it when I change the belt and I am always correct.
Title: Re: Serpentine belt replacement on c15 Cat
Post by: Gary Miller on March 20, 2019, 04:18:11 PM
Thanks for all your feedback.
Title: Re: Serpentine belt replacement on c15 Cat
Post by: Dwight Lakusta on March 24, 2019, 03:02:14 PM
Tip: Snap a photo of the belt routing prior to removal to help with installation. There's not much complication to the routing, but ...

On my C13, it's a tight fit between the tensioner and the coach body support (i.e. the cross support shown in photo below).

Maybe your C15 has a little more working room. I found that a long handle flexible head ratchet works nicely. A standard 1/2" drive ratchet is a little short and doesn't give much leverage (that tensioner pulley spring is stiff).

Good luck.

That’s the cleanest engine I have ever seen. Wow.
Title: Re: Serpentine belt replacement on c15 Cat
Post by: Mike Shumack on March 24, 2019, 03:20:56 PM
Thanks. But it's just a can of "Cat yellow" sprayed around the top of engine after a minor cleaning. No credit to my maintenance skills.  ;D