Electric Fans - What happens if the Fan Belt Breaks?
#1
Electric Fans - What happens if the Fan Belt Breaks?
Although I've fitted 'efans' I haven't yet wired them up but I was wondering what happens if the Fan Belt (alternator belt) breaks?
How long have you got before the Engine dies or Starts to Overheat.
So you're out for a nice long drive and the Fan Belt Breaks, what is the best thing to do.
Do you call out the breakdown truck or would you be able to fix it at the side of the road.
Should I carry a Spare Battery and Fan Belt.
How long have you got before the Engine dies or Starts to Overheat.
So you're out for a nice long drive and the Fan Belt Breaks, what is the best thing to do.
Do you call out the breakdown truck or would you be able to fix it at the side of the road.
Should I carry a Spare Battery and Fan Belt.
Last edited by orangeblossom; 12-29-2016 at 08:05 AM.
#2
Although I've fitted 'efans' I haven't yet wired them up but I was wondering what happens if the Fan Belt (alternator belt) breaks?
How long have you got before the Engine dies or Starts to Overheat.
So you're out for a nice long drive and the Fan Belt Breaks, what is the best thing to do.
Do you call out the breakdown truck or would you be able to fix it at the side of the road.
Should I carry a Spare Battery and Fan Belt.
How long have you got before the Engine dies or Starts to Overheat.
So you're out for a nice long drive and the Fan Belt Breaks, what is the best thing to do.
Do you call out the breakdown truck or would you be able to fix it at the side of the road.
Should I carry a Spare Battery and Fan Belt.
(belt that drives mechanical fan doesn't drive alternator on my model)
fixing at the roadside would I think be quite difficult.
on my 6.0L the "fan belt" (alternator) is closest to the engine, meaning three other belts in front have to be un-tensioned and removed to allow the alternator belt to be replaced.
I watched a mechanic spend three hours to replace mine, granted he had never worked on XJS V12 before, some belt tensioners were accessible from above engine, others required car up on lift for easy access.
After observing the work I thought £80 labour charge very reasonable (2015 price)
Last edited by Paul_59; 12-29-2016 at 08:16 AM.
The following users liked this post:
orangeblossom (12-29-2016)
#3
Join Date: Oct 2009
Location: Perth Ontario Canada
Posts: 11,058
Received 2,263 Likes
on
1,845 Posts
The following users liked this post:
orangeblossom (12-29-2016)
#4
The following users liked this post:
orangeblossom (12-29-2016)
#5
#6
Hi Paul_59
I wouldn't have a problem Changing the Belts at home even if it took a day or two but in the event you are out for a drive, then I would imagine its a very different story.
I was thinking that the extra load on the Alternator when using 'efans' could be one of the downsides.
I wouldn't have a problem Changing the Belts at home even if it took a day or two but in the event you are out for a drive, then I would imagine its a very different story.
I was thinking that the extra load on the Alternator when using 'efans' could be one of the downsides.
Greg
Last edited by Greg in France; 12-29-2016 at 08:59 AM.
The following 2 users liked this post by Greg in France:
Grant Francis (12-29-2016),
orangeblossom (12-29-2016)
#7
Hi Greg
Cheers!
That sounds good advice, its just for me that 'efans' are a step into the unknown.
Also wondering what to do when I take her for an MOT as Garages seem to have a habit of wanting to keep the Engine Running even when there's no need.
Should I keep one of the 'efans' running, after I switch her off to cool her down?
Cheers!
That sounds good advice, its just for me that 'efans' are a step into the unknown.
Also wondering what to do when I take her for an MOT as Garages seem to have a habit of wanting to keep the Engine Running even when there's no need.
Should I keep one of the 'efans' running, after I switch her off to cool her down?
Trending Topics
#8
Join Date: Oct 2009
Location: Perth Ontario Canada
Posts: 11,058
Received 2,263 Likes
on
1,845 Posts
The following users liked this post:
orangeblossom (12-29-2016)
#9
#10
Join Date: Oct 2009
Location: Perth Ontario Canada
Posts: 11,058
Received 2,263 Likes
on
1,845 Posts
The following users liked this post:
orangeblossom (12-29-2016)
#11
@OB
Technically the altenator doesn't power anything, other than charge the battery. MOST cars drain the power they need directly from the battery, which is constantly being fed with ~13-15V where as the car has a fixed 12V power supply. Electrical fans will do no harm to the altenator... You can always upgrade to a more powerful one, but then again: how often will the fans be on? Iirc the airflow at 20 mph is more than enough to cool the engine without any fans on... See what Greg wrote a few weeks ago regarding his fans.
No worry about anything OB, it'll be just fine
Technically the altenator doesn't power anything, other than charge the battery. MOST cars drain the power they need directly from the battery, which is constantly being fed with ~13-15V where as the car has a fixed 12V power supply. Electrical fans will do no harm to the altenator... You can always upgrade to a more powerful one, but then again: how often will the fans be on? Iirc the airflow at 20 mph is more than enough to cool the engine without any fans on... See what Greg wrote a few weeks ago regarding his fans.
No worry about anything OB, it'll be just fine
The following 3 users liked this post by Daim:
#12
If that's not a Problem, then why did they fit the XJS with an Auxiliary Cool down Fan that runs for about 10 Minutes when the Engine is Switched OFF.
#13
Join Date: Oct 2009
Location: Perth Ontario Canada
Posts: 11,058
Received 2,263 Likes
on
1,845 Posts
#14
OB, a failed alternator is not an issue with efans, I had my alternator fail about 200km from home and I got home ok (after a jump start) it was raining so I had the wipers on but had to switch off the headlights, my car has dual efans from a Ford.
You 90 XJS will have a serpentine belt for the ALT so less likely to fail than a V belt. I would check the belts every time you service as a matter of course.
You 90 XJS will have a serpentine belt for the ALT so less likely to fail than a V belt. I would check the belts every time you service as a matter of course.
The following 3 users liked this post by warrjon:
#15
#16
The following users liked this post:
orangeblossom (12-30-2016)
#17
#18
The following users liked this post:
orangeblossom (12-31-2016)
#19
#20
Join Date: Jul 2010
Location: Austin tx and Daytona FL.
Posts: 7,362
Received 1,236 Likes
on
943 Posts
The following users liked this post:
orangeblossom (01-01-2017)