| | |
06-21-2007, 06:36 PM
| #1 |
| Senior Member  Join Date: Oct 2006
Posts: 76
 | water pump Hello all, my wife's 99 gmc jimmy needs a water pump. How do I remove the fan. it appears that the fan clutch attaches to the water pump via a threaded brass coupling. when I try to remove it, the whole pulley slips and the belt will not hold it tight enough. what am I doing wrong? should not be that hard to do. does it have reverse threads?
__________________ Jeff Tuck ( me likes me some GMs ) 1968 Chevy C10 straight 6 1989 Chevy S10 v6 4.3 1994 Chevy Silverado Z71 4X4 v8 5.7 1999 GMC Jimmy v6 4.3 |
|  |
|
06-21-2007, 07:37 PM
| #2 |
| Senior Member  Join Date: Jan 2006 Location: South Florida (Palm Beach), originally from south of BOSTON
Posts: 644
| take the belt off before you remove it
__________________ im a straight shooter with upper management written all over me |
|
| |
|
06-21-2007, 09:32 PM
| #3 |
| Senior Member  Join Date: Jun 2005
Posts: 2,261
 | and i think you'll need to hold the fan still. but that my be to put it back on
__________________ 99 suburban xlt 96 silverado 91 wrangler (my baby  )08 Honday shadow 750 (my mistress  ) |
|
| |
|
06-21-2007, 10:08 PM
| #4 |
| Senior Member  Join Date: Jul 2006
Posts: 2,517
| you are going to need a fan clutch removal tool. It looks like a giant wrench that is extremely flat. I believe it to be 60mm. Yeah it is that big. I have one at the shop if you need to know the size, but you can also rent one, they should know the size you need. |
| |
|
06-22-2007, 12:47 PM
| #5 |
| Senior Member Join Date: Oct 2006
Posts: 76
| thanks thanks for all the advice, but here is how I got it. I left the belt in place, put a 13mm wrench on one of the water pump pulley bolts to hold it, then I put my super heavy duty adjustable wrench on the fan clutch collar and gave it a quick strike with a hammer. after about 3 whacks it came loose. I just had to hope that it did not have reverse threads. I got lucky I guess. just hope I can get it tight enough when I put it back on. Also, anyone know the torque setting for the water pump bolts?
__________________ Jeff Tuck ( me likes me some GMs ) 1968 Chevy C10 straight 6 1989 Chevy S10 v6 4.3 1994 Chevy Silverado Z71 4X4 v8 5.7 1999 GMC Jimmy v6 4.3 |
|
| |
|
06-22-2007, 04:21 PM
| #6 |
| Senior Member  Join Date: Apr 2007
Posts: 108
| 30 lb ft on the pump bolts. when you're done and you tighten the fan back onto the pump....Just a couple hits with the hammer will hold it on fine. When the fan requires more resistance in the clutch (hot) the rotational drag will tighten it more than enough for you if it's not tight enough already. |
|
| |
|
06-23-2007, 05:32 AM
| #8 |
| Moderator  Join Date: Feb 2006 Location: michigan
Posts: 3,934
| lol^^^, i'm gonna guess that was aimed toward the hammer whacking portions. i would recommend a good length of pipe slipped over the wrench for leverage next time.
__________________ member map add yourself |
|
| |
|
06-23-2007, 11:54 AM
| #9 |
| Full Member Join Date: Jun 2007 Location: arlington wa
Posts: 43
| All I have to say is most auto stores rent the fan clutch removal tool and lucky for you that method worked but real easy way to break a bolt. also makes the installation easier. Further more unless your building a house directions should nat include hit it with a hammer. Do it right or do it twice.
__________________ "It is what it is" |
|
| |
 |
| Thread Tools | Search this Thread |
|
Similar Threads | ||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Trouble with a water pump | geauxstros | Chevy Truck Forum | 3 | 05-24-2007 02:32 AM |
| How do you change a water pump | chafuro786 | Ford Truck Forum | 2 | 03-07-2007 10:09 PM |
| 02 Silverado water pump. | Kevin Hod | Chevy Truck Forum | 9 | 12-07-2005 07:20 PM |
| Power steering pump shafts keep shearing off | AKHD | Chevy Truck Forum | 1 | 10-25-2005 12:36 PM |
| 1990 Chevy Silverado Water Pump | RICK | Chevy Truck Forum | 3 | 02-11-2005 07:20 AM |
