| [GMCnet] 2 items: Fan bearing??? sequel maybe...and Duralast Belts!!! [message #98387] |
Fri, 03 September 2010 16:20  |
gmc gmc
Messages: 69
Registered: May 2009
Karma: 0
|
Member |
|
|
HI all, Mike Derr again... Couple of things... alt belt still off, new
Duralast 15350 or so belt... Squeal still there... we looked and took
picture and see metal flange part off of bearing seal of the engine fan! so
maybe the bearings there are squeling at 55mph under gas! makes sense as
when release gas then fan catches up to motor?? I'm not sure...
So how do I replace that fan bearing if that is what is it called? fan
clutch I see I can but that whole thing???? and bolt to fan???
Then item #2: Alternator belt is Duralast 17545... first 2 digits are
width! 15 or 17 mm maybe! anyways this 17545 seems bit wide for the alt
and other pullies! should I try it or get a 15xxx Duralast belt?
thanks
Mike
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
| Re: [GMCnet] 2 items: Fan bearing??? sequel maybe...and Duralast Belts!!! [message #98464 is a reply to message #98387] |
Sat, 04 September 2010 05:20  |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
|
Senior Member |
|
|
| gmc gmc wrote on Fri, 03 September 2010 16:20 |
HI all, Mike Derr again... Couple of things... alt belt still off, new
Duralast 15350 or so belt... Squeal still there... we looked and took
picture and see metal flange part off of bearing seal of the engine fan! so
maybe the bearings there are squeling at 55mph under gas! makes sense as
when release gas then fan catches up to motor?? I'm not sure...
So how do I replace that fan bearing if that is what is it called? fan
clutch I see I can but that whole thing???? and bolt to fan???
Then item #2: Alternator belt is Duralast 17545... first 2 digits are
width! 15 or 17 mm maybe! anyways this 17545 seems bit wide for the alt
and other pullies! should I try it or get a 15xxx Duralast belt?
thanks
Mike
|
If I remember correctly, the first two digits of the part number is the width of the top of the belt in 32nds of an inch.
Based in that you would want a belt that starts in 15. It is definitely not mm. Our belts are 11 mm. wide.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
|
|
|
|
| Re: [GMCnet] 2 items: Fan bearing??? sequel maybe...and Duralast Belts!!! [message #98469 is a reply to message #98464] |
Sat, 04 September 2010 06:34 |
gmc gmc
Messages: 69
Registered: May 2009
Karma: 0
|
Member |
|
|
ok great Ken, thx, I got a 15xxx and will install that today.
But still need to figure out how to replace that fan clutch bearing or the
whole fan clutch assembly maybe. Wonder if I can drive this weekend with it
as is? all it does is squeal over 55mph.
thx
Mike Derr
Madison, WI
On Sat, Sep 4, 2010 at 6:20 AM, Ken Burton <n9cv@comcast.net> wrote:
>
>
> gmc gmc wrote on Fri, 03 September 2010 16:20
> > HI all, Mike Derr again... Couple of things... alt belt still off, new
> > Duralast 15350 or so belt... Squeal still there... we looked and took
> > picture and see metal flange part off of bearing seal of the engine fan!
> so
> > maybe the bearings there are squeling at 55mph under gas! makes sense as
> > when release gas then fan catches up to motor?? I'm not sure...
> >
> > So how do I replace that fan bearing if that is what is it called? fan
> > clutch I see I can but that whole thing???? and bolt to fan???
> >
> > Then item #2: Alternator belt is Duralast 17545... first 2 digits are
> > width! 15 or 17 mm maybe! anyways this 17545 seems bit wide for the alt
> > and other pullies! should I try it or get a 15xxx Duralast belt?
> >
> > thanks
> >
> > Mike
>
>
> If I remember correctly, the first two digits of the part number is the
> width of the top of the belt in 32nds of an inch.
>
> Based in that you would want a belt that starts in 15. It is definitely
> not mm. Our belts are 11 mm. wide.
>
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
| Re: [GMCnet] 2 items: Fan bearing??? sequel maybe...and Duralast Belts!!! [message #98472 is a reply to message #98469] |
Sat, 04 September 2010 07:29 |
fred v
Messages: 999
Registered: April 2006
Location: pensacola, fl.
Karma: 0
|
Senior Member |
|
|
| gmc gmc wrote on Sat, 04 September 2010 06:34 |
ok great Ken, thx, I got a 15xxx and will install that today.
But still need to figure out how to replace that fan clutch bearing or the
whole fan clutch assembly maybe. Wonder if I can drive this weekend with it
as is? all it does is squeal over 55mph.
thx
Mike Derr
Madison, WI
|
you will need to replace the whole fan clutch. if it is the clutch that is making noise. i had a bad bearing in the alt. that made a squeal at speed. water pumps do that also. squeal is a sign something is going out. don't try to drive too far.
Fred V
'77 Royale RB 455
P'cola, Fl
|
|
|
|
| Re: [GMCnet] 2 items: Fan bearing??? sequel maybe...and Duralast Belts!!! [message #98498 is a reply to message #98472] |
Sat, 04 September 2010 09:35 |
shawnee
Messages: 422
Registered: February 2004
Location: NC
Karma: 0
|
Senior Member |
|
|
[quote title=fred v wrote on Sat, 04 September 2010 08:29]| gmc gmc wrote on Sat, 04 September 2010 06:34 |
ok great Ken, thx, I got a 15xxx and will install that today.
But still need to figure out how to replace that fan clutch bearing or the
whole fan clutch assembly maybe. Wonder if I can drive this weekend with it
as is? all it does is squeal over 55mph.
thx
Mike Derr
Madison, WI
|
Mike,
Try to spin the fan by hand. It should move no more than 1/4 turn whenyou let loose. Usually fan clutches fail by either not engaging or staying engaged all the time. If you can't move the fan then the clutch has failed. Also check if you are getting drips of coolant through the weep hole under the water pump. If there is coolant the pump seal is leaking and you may have bad bearings on the pump. Usually when water pump goes bad you can hear a rattle noise when idling the engine.
Gene Dotson
74 Canyonlands
www.bdub.net/Motorhome_Enhancements New Windows and Aluminum Radiators
|
|
|
|
GMCforum
Search
Help
Register
Login
Home
