It's been a while since I have been up to date on the
GMCnet, and while I'm still not quite there, I couldn't pass
up the opportunity to comment on this subject.
About a year ago, I installed a Hayden 2705 fan clutch. It
NEVER engaged! After listening to this GMCnet, I returned
it for a 2797 fan clutch. This one NEVER disengaged! I
then returned it for the 2747. This one STAYED engaged
until 45 MPH and then slowed to normal.
Finally, I returned the Hayden clutch and purchased a
Cinnabar "normal" duty fan clutch for about $80. It works
perfectly. On occasion, I can hear it speed up a little,
but never the "roar" that startles some new owners.
In summary, I have a cool radiator without the loud roar of
the Hayden fan clutch. If this one doesn't last long, I
will opt for the Cinnabar HD model, which has heavier duty
bearings.
This is what worked for me.
Scott Shean
Baton Rouge, LA
78 Royale
>-----Original Message-----
>From: owner-gmcmotorhome
>[mailto
wner-gmcmotorhome]On
>Behalf Of Dave Lowry
>Sent: Saturday, June 03, 2000 10:12 PM
>To: gmcmotorhome
>Subject: Re: GMC: "Woo Woo" Mystery Solved
>
>
>>In a message dated 06/03/2000 4:53:31 PM Central
>Daylight Time,
>>
>>> It'll get a new Hayden 2797 next week, but
>thought I'd better report my
>> findings and ask if this is a common failure
>mode. Has anyone had a similar
>> failure?
>> >>
>>If you would really like to be through with your
>fan clutch problems for a
>>long time, I'd suggest you get a GM clutch. The
>GM clutches have given me
>>many miles of trouble free service. The Haydens I
>tried didn't last very
>>long. GM cost more but is worth it in my opinion.
>
>Thanks Ted. I'll keep that in mind for when I get
>really frustrated. For
>now though, I think I'll take advantage of the
>fact it was a 2747 that
>failed. The new 2797 will only cost me the
>difference to upgrade.
>
>Dave (advisor/navigator) & Dege (ALL else), '76
>Royale, Santa Barbara, CA
>
>
>
GMCnet, and while I'm still not quite there, I couldn't pass
up the opportunity to comment on this subject.
About a year ago, I installed a Hayden 2705 fan clutch. It
NEVER engaged! After listening to this GMCnet, I returned
it for a 2797 fan clutch. This one NEVER disengaged! I
then returned it for the 2747. This one STAYED engaged
until 45 MPH and then slowed to normal.
Finally, I returned the Hayden clutch and purchased a
Cinnabar "normal" duty fan clutch for about $80. It works
perfectly. On occasion, I can hear it speed up a little,
but never the "roar" that startles some new owners.
In summary, I have a cool radiator without the loud roar of
the Hayden fan clutch. If this one doesn't last long, I
will opt for the Cinnabar HD model, which has heavier duty
bearings.
This is what worked for me.
Scott Shean
Baton Rouge, LA
78 Royale
>-----Original Message-----
>From: owner-gmcmotorhome
>[mailto
wner-gmcmotorhome]On>Behalf Of Dave Lowry
>Sent: Saturday, June 03, 2000 10:12 PM
>To: gmcmotorhome
>Subject: Re: GMC: "Woo Woo" Mystery Solved
>
>
>>In a message dated 06/03/2000 4:53:31 PM Central
>Daylight Time,
>>
>>> It'll get a new Hayden 2797 next week, but
>thought I'd better report my
>> findings and ask if this is a common failure
>mode. Has anyone had a similar
>> failure?
>> >>
>>If you would really like to be through with your
>fan clutch problems for a
>>long time, I'd suggest you get a GM clutch. The
>GM clutches have given me
>>many miles of trouble free service. The Haydens I
>tried didn't last very
>>long. GM cost more but is worth it in my opinion.
>
>Thanks Ted. I'll keep that in mind for when I get
>really frustrated. For
>now though, I think I'll take advantage of the
>fact it was a 2747 that
>failed. The new 2797 will only cost me the
>difference to upgrade.
>
>Dave (advisor/navigator) & Dege (ALL else), '76
>Royale, Santa Barbara, CA
>
>
>
